In ALMN, l= 97 cm, m = 52 cm and ZN=39°. Find ZL, to the nearest degree.

Answers

Answer 1

Answer: In ALMN, l= 97 cm,

                             m = 52 cm,

                             ZN=39°,

                             ZL= 66°

Step-by-step explanation:

Given data,

In ALMN, l= 97 cm, m = 52 cm and ZN=39°.

The law of cosines can be used to find the missing side.

                 n²  = m² +n² -2ml·cos(L)

                n²  = [tex]52^{2}[/tex] + [tex]97^{2}[/tex] - 2(52)(97). cos (39°)

                 n² = 9409 + 2704 - 2(52)(97). cos (39°)

                  n² = 12113 - 2(52)(97). cos (39°)

                  n² = 12113 - 10088 cos (39°)                     (eq - 1)

    So, that   cos (39°) = 0.777

Substitute  cos (39°) value in this equation 1              

So,

We can write,

                   n² = 12113 - 10088* 0.777

                   n² = 12113 - 7838.3

                    n²  = 4274.62

                    n  = √4274.62

                     n = 65.38 ≅ 66

Therefore,

           In ALMN, l= 97 cm,

                             m = 52 cm,

                             ZN=39°,

                             ZL= 66°    

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Related Questions

The points I, J, K and L all lie on the same line segment, in that order, such that the ratio IJ:JK:KL is equal to 2:5:5 IfIL=60, find KL.

Answers

The length of KL with the given ratio is 25 units

How to determine the length of KL?

The given parameters are:

IJ : JK : KL is equal to 2 : 5 : 5

IL = 60

Rewrite properly as:

IJ : JK : KL = 2 : 5 : 5

This means that the length of KL

KL = KL ratio/Sum of ratios * IL

So, we have

KL = 5/(2 + 5 + 5) * 60

Evaluate the sum

KL = 5/12* 60

Divide 60 by 12

So, we have

KL = 5 * 5

Evaluate the product

KL = 25

Hence, the length of KL with the given ratio is 25 units

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Write an equation in​ slope-intercept form of the line that passes through the given point and is parallel to the graph of the given equation
(-9,-7) y= -3x+5

Answers

Answer:

y = -3x -34

Step-by-step explanation:

m= -3

plug the point in to find b

slope intercept form: y=mx+b

-7 = -3(-9) +b

-7 = 27 = b

-7 -27 = b

b= -34

plug in the m and b you found into the final equation:

y = -3x -34

Answer:

y = -3x -34

Step-by-step explanation:

Find the standard deviation and variance for the following data. These are the heights (cm) of 5
students from a class of 30.
162, 166, 179, 170, 175.

Answers

The standard deviation is 6.09

The variance is 37.04.

What is the standard deviation and variance?

Standard deviation is used to determine how the values in a group differs from the mean of the values in the group. It is a measure of variation.

In order to determine the standard deviation, take the following steps:

Determine the mean of the observation: (162 + 166 + 179 + 170 + 175) / 5 = 170.40

Determine the difference between each value and the mean and then square the result:

(162 - 170.40)² + (166-  170.40)² + (179 -  170.40)² + (170 -  170.40)² + (175 -  170.40)²

70.56 + 19.36 + 73.96 + 0.16 + 21.16 = 185.20

Determine the mean of the sum of the squared differences and then find the square root of the mean:

√185.20 / 5 = 6.09

Variance measures the rate of dispersion of a data point around the dataset. It can be calculated by finding the square of the standard deviation of a dataset.

6.09² = 37.04

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or
Steven measured a county park and made a scale drawing. The scale he used was 5 inches = 1 yard. What scale factor does the drawing use?

Answers

The scale factor used to draw is 7.2

What is scale factor?

The size by which the shape is enlarged or reduced is called as its scale factor.

Given:

5 inches = 1 yard

Now, we know that

1 yd = 3 ft

now, to  Convert yards to inches

1 yd = 3 x 12

i yards = 36 inches

and, the scale factor is

=36 ÷ 5

= 7 1/5

= 7.2

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Given the graph of the function f(x) below, estimate the slope of the tangent line to the curve at x=0. Select the answer that is closest.

Answers

Since f(x) appears to admit a local minimum at the point of abscissa zero, then the tangent drawn at that point must admit a slope equal to zero.

Option 3

What is the difference when 54.89 is subtracted from 235.987?
29.0877
1,810.97
290.877
181.097
ill brainlist the right answer

Answers

[tex]{ \blue{ \tt{option(d)}}} \: { \boxed{ \red{ \sf{181.097}}}}[/tex]

Step-by-step explanation:

[tex] \: \: \: \: 235.987[/tex]

[tex] - \: \: \: 54.89[/tex]

_______________

[tex]{ \boxed{ \red{ \sf{= 181.097}}}}[/tex]

During each shift, there are nurses needed at each ward. If
there are three shifts in a day, each nurse only can be on duty
for one shift each day. How many more nurses does the
hospital need to employ?

Answers

The hospital needs to employ 21 nurses, 7 for each shift.

What are permutations and combinations?Permutations and combinations are the various ways in which objects from a set can be selected, generally without replacement, to form subsets. When the order of selection is a factor, this selection of subsets is called a permutation; when order is not a factor, it is called a combination.

So, there are 3 shifts in a day and 7 nurses are needed for each shift.

Then,

7 × 3 = 21

Therefore, 21 nurses are needed, 7 for each shift.

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The complete question is given below:
During each shift, there are 7 nurses needed at each ward. If there are three shifts in a day, each nurse only can be on duty for one shift each day. How many more nurses does the hospital need to employ?

A sample of ore is found to be 0.0022% gold and 0.059% diamond. What is the percentage of matter in the ore that is neither gold nor diamond? Round your answer to the nearest ten thousandth.

Answers

The percentage of matter in the ore that is neither gold nor diamond is 99.9388%.

In the question, we are given that a sample of ore is found to be 0.0022% gold and 0.059% diamond.

We are asked for the percentage of matter in the ore that is neither gold nor diamond.

We know that in any quantity, the total is shown as 100%.

If we assume the percentage of matter in the ore that is neither gold nor diamond to be x%, then using the above theory, we can say that;

x% + 0.0022% + 0.059% = 100%.

This can also be shown as:

x + 0.0022 + 0.059 = 100, which can be simplified as:

x + 0.0612 = 100, which can be solved by subtracting 0.0612 from both sides to get:

x = 100 - 0.0612 = 99.9388‬.

Thus, the percentage of matter in the ore that is neither gold nor diamond is 99.9388%.

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656 divded by 9 and 3.6 divded by 17

Answers

Answer: 72.8 and 0.21

Answer:

72.8888888889

and

0.5142857143

Elimination Method

Use the elimination method to solve the system of equations below.

0.12
x

0.09
y
=
0.45


0.3
x
+
1.6
y
=
8.5


Choose one • 4 points


x

=


15

y

=

7


x

=

5

y

=

7


x

=

9

y

=

5


x

=

9

Answers

The correct option  D. x = 9, y = 7; obtained by the elimination method.

What is defined as the elimination method?The elimination method entails the procedure of eliminating a single variables in a system of linear equations by using addition or subtraction methods in combination with variable coefficient multiplication or division.

Now, as per the given question;

The equations are-

0.12x − 0.09y = 0.45 (multiply both side with 100)

12x - 9y = 45 ......equation 1

and,

-0.3x + 1.6y = 8.5 (multiply both side with 40)

-12x + 64y = 340 .......equation 2

Add equation 1 and 2;

55y = 385

y = 5

Put y = 5 in equation 1

12x = 45 + 45

x = 9

Thus, the values of the variables are obtained as (x = 9) and ( y = 7).

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The correct question is-

Use the elimination method to solve the system of equations below.

0.12x − 0.09y = 0.45

-0.3x + 1.6y = 8.5

Choose one • 4 points

A. x = −15, y = 7

B. x = 5, y = 7

C. x = 9, y = 5

D. x = 9, y = 7

The equation for photon energy, E , is

E=hcλ


where h = 6.626×10^−34 J⋅s (Planck's constant) and c = 2.99×10^8 m/s (the speed of light).

What is the wavelength, λ , of a photon that has an energy of E = 4.26×10^−19 J ?

Answers

The wavelength  λ , of a photon that has an energy of E = 4.26×10^−19 J is 21504.29 meter.

What is an equation?

In mathematics, an equation is a formula that expresses the equality of two expressions by connecting them with the equal sign = .

Now, the given equation for photon energy, E , is

E = hcλ

Here, h = 6.626×10^−34 J⋅s (Planck's constant) and

c = 2.99×10^8 m/s (the speed of light)

Therefore, we have

E = hcλ

⇒ λ = E/hc

Put the values of E, h and c we get,

λ = 4.26×10^−19 / (6.626×10^−34*2.99×10^8)

Solving we get,

λ = 4.26×10^−19 / 19.81×10^(−34+8)

⇒ λ = 4.26×10^−19 / 19.81×10^-26

⇒ λ = (4.26/19.81)*10^(-19+26)

⇒ λ = 0.215042×10^5 meter

⇒ λ = 21504.29 meter

Thus, the wavelength  λ , of a photon that has an energy of E = 4.26×10^−19 J is 21504.29 meter.

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PLEASE HELP
OFFERING 20 POINTS

Answers

Answer:

x = -4

Step-by-step explanation:

A perpendicular bisector is a line that divides the existing line or shape evenly and at 90° angles. First, we want to find the center point of our existing line. In this case, the center sits right at x = -4. Since the existing line is y = 3 and it is perfectly horizontal, we don’t need to do anything further. Our perpendicular bisector is x = -4.


*** When the existing line is y = [singular number], the perpendicular bisector will always be x = [midpoint of existing line], and vice versa.

Hope this helps!

Pllzzzzzz help
What number should be placed in the box to help complete the division calculation?

Answers

Answer:

160

Step-by-step explanation:

1 is in 10s place 16x10=160

Given f(x) = x^2 - 3x + 5, what is f(-2)?

A. f(-2) = 3
B. f(-2) = -5
C. (-2) = 15

Answers

C ) f(-2) = 15 is the right answer

f(-2) = (-2)^2 - 3(-2) +5
= 4 + 6 + 5
= 15

which of the following 5-digit numbers can be rounded to 20,000?

Answers

24,999 would round off to 20,000

In the figure below, mz1 = (4x + 50)° and
mz3 = (2x + 66)°.
3
a. What is the value of x?
b. What is the measure of m<3?
c. What is the measure of m22?

Answers

the measure of m22 =  98°  by linear pair .

What is  linear pair?

When two lines cross at one point, a linear pair of angles is created. If the angles follow the intersection of the two lines in a straight line, they are said to be linear. A linear pair's total angles are always equal to 180°.

Given ,    mz1 = (4x + 50)°

               mz3 = (2x + 66)°.

a)  mz1  =   mz3

     (4x + 50)° =  (2x + 66)°

      4x - 2x  = 66 - 50

           2x =   16°

             x = 8°

b)     mz3 = (2x + 66)°.

      put value of x

     2x + 66 = 2 * 8 + 66

                   = 16  + 66  ⇒    82°

c)  mz2 =  ∠ 1 + ∠ 2 = 180°               { linear pair }

                4x + 50 + ∠2 = 180°

                  4 × 8 + 50 + ∠2 = 180°

                  82° + ∠2  = 180°

                        ∠2 = 180° - 82°

                         ∠2 = 98°

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Points: 0 of T
Christine went shopping and bought each of her five nephews a gift, either a video costing $14.95 or a CD
costing $16.88. She spent $78.61 on the gifts. How many videos and how many CDs did she buy?
...
Save

Answers

The number of videos will be 3 and the number of CDs will be 2.

What is an expression?

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Given that Christine went shopping and bought each of her five nephews a gift, either a video costing $14.95 or a CD costing $16.88. She spent $78.61 on the gifts.

The number of the videos and CD will be calculated by forming an equation:-

14.95x + 16.88y = 78.61

From heat and trial, we put x = 3 and y = 2 then calculate.

14.95 x ( 3 )  + 16.88 x ( 2 ) = 78.61

44.85 + 33.76 = 78.61

78.61 = 78.61

Therefore, the number of videos will be 3 and the number of CDs will be 2.

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For the function f, construct and simpli
1) f(x)=9x+2
Pre-Calc

Answers

Answer:

For the function f(x) = 9x f(x + h) - f(x) construct and simplify the difference quotient h 3 1 The difference quotient for f(x) = is 9x

Step-by-step explanation:

Can’t see the question???

XZ is the angle bisector of angle WXY. Solve for m. Enter a NUMBER only.

Answers

The value of m would be 7 if XZ is the angle bisector of the angle ∠WXY which are the angles ∠WXM and ∠YXZ would be 42°.

What is an angle bisector?

An angle bisector is defined as a line that divides an angle into two equal angles. Draw the given angle first, then cut it in half, and then draw the angle's bisector.

We have been given that XZ is the angle bisector of angle WXY.

⇒ ∠WXM = ∠YXZ

Solve for m

⇒ 10m -28 = 5m + 7

⇒ 10m - 5m = 28  + 7

⇒ 5m = 35

⇒ m = 35/5

⇒ m = 7

So ∠WXM = 10(7) -28 = 42

And ∠YXZ = 5(7) + 7 = 42

Therefore, the value of m would be 7.

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K(2, 7), L(6, 12), M(13, 13), N(9.8) (Slope Formula) is it a parallelogram?

Answers

angles and sides opposite one another on a parallelogram are congruent, we can say this is a parallelogram because there are congruent.

What in mathematics is a parallelogram?

A quadrilateral with the opposing sides parallel is called a parallelogram (and therefore opposite angles equal). A parallelogram with all right angles is known as a rectangle, and a quadrilateral with equal sides is known as a rhombus.

Slope Formula: y2-y1/x2-x1

KL: 12-7/6-2 = 5/4

LM; 13-12/13-6 = 1/7

MN: 8-13/9-13 = 5/4

KN: 7-8/9-2 = 1/7

Since angles and sides opposite one another on a parallelogram are congruent, we can say this is a parallelogram because there are congruent.

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ln(3) - ln(2) + ln(1/x) =
A. 3 / (2x)
B. 3x/2
C. 1 + 1/x
D. 3/2 - 1/x

Answers

The required simplified solution for the given logarithm expression is y = 3 / 2x.

What is simplification?

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

Here,
To simplify the given expression,
ln(3) - ln(2) + ln(1/x) = ln (y)
ln(3) + ln(1/x) =  ln(2) + ln(y)
By the property of logarithm,
3/x = 2y
y = 3 / 2x

Thus, the required simplified solution for the given logarithm expression is y = 3 / 2x

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The sum of the measures of two complementary angles is 90°. If one angle measures
15° more than twice the measure of the other, find the measure of the smaller angle.
The smaller angle measures: ?

Answers

Answer: 75°

Step-by-step explanation:

Solution;

Here:. let, one angle be x

From the question ,

x+15=90(Being sum of complementary angle)

x=90-15

x=75

The table below shows the assets and liabilities of the Tanner family.
Assets and Liabilities Amount
Checking account $17,532
Car (paid off) $12,225
Retirement Savings $43,675
Credit Card Debt $7,876
Home Loan Balance $65,225

What is the net worth of the Tanner family?

Answers

If checking account has $17,532,car (paid off) is $12,225,retirement savings are $43,675,credit card debt is $7,876,home loan balance has $65,225, the the net worth of the Tanner family is $331.

Given that checking account has $17,532,car (paid off) is $12,225, retirement savings are $43,675,Credit Card Debt is $7,876,Home Loan Balance has $65,225.

We are required to find the net worth of the Tanner family.

Net worth is basically the value of the assets a person or corporation owns, minus the liabilities they owe.

Net worth=Checking account+Car +Retirement savings-credit card debt-Home loan balance

=17532+12225+43675-7876-65225

=$331

Hence if checking account has $17,532,Car (paid off) is $12,225 ,retirement Savings are $43,675,credit card debt is $7,876,home loan balance has $65,225, the the net worth of the Tanner family is $331.

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Find slope of the line

Answers

The slope of the line having the points ( -1 , 8 ) and ( 8 , 9 ) is 1 / 9.

We are given the two points:

( -1 , 8 ) and ( 8 , 9 )

We need to find the slope of the line that contains these two points.

We know that the formula for calculating the slope of the line is given by:

m = y₂ - y₁ / x₂ - x₁

Here, we have:

x₁ = - 1                     y₁ = 8

x₂ =  8                     y₂ = 9

Substituting the values in the formula, we get that:

m = 9 - 8 / 8 + 1

m = 1 / 9

Therefore, the slope of the line having the points ( -1 , 8 ) and ( 8 , 9 ) is 1 / 9.

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Need help I ready pls help me

Answers

Answer:

(9+b)+(10+s)

Step-by-step explanation:

Suppose that approximately 273,000,000 people live in the United States. Of these people, 31,200,000 speak a language other than English at home. Of those who speak another language at home, over 50 percent speak Spanish.
• E = speak English at home
• E' = speak another language at home
• S = speak Spanish at home
Finish each probability statement by matching the correct answer.
P(E' )

Part (b)
P(E)

Part (c)
P(S)

Part (d)
P(S | E' )

Answers

The required probability is given by  P(E') =4/35  .

Probability is the study of chance. It can also be defined as the ratio of the favorable outcomes to an event to the total number of outcomes of the event.

Given the total number of people in the USA = 273000000

Let E be the number of people who speak English at home.

Therefore the number of people who don't speak English at home is E'.

∴ E' = 31200000

S speak Spanish in their homes.

∴ S = 50% of 31200000 = 15600000

Now let us find the required probabilities.

We know that probability = favorable outcome ÷ total outcome

total outcome = 273000000

a) favorable outcome(E') = 31200000

P(E')=31200000/273000000

P(E') =4/35

b)favorable outcome(E) = 273000000 - 31200000 = 241800000

P(E) = 241800000/273000000

P(E)={31}/{35}

c)favorable outcome = 15600000

P(S)={15600000}/{273000000}

P(S)={2}/{35}

Therefore the required probability is given by P(E') =4/35 , [tex]P(E)=\frac{31}{35}[/tex] P(E)=31/35 and P(E)=2/35and .

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Which of the following are factors of 96? Select ALL that apply.
018
6
04
012
014

Answers

Answer:04,6and 12

Explation:factors are numbers which divide the original number without leaving a remainder.The factors are:1,2,3,4,6,8,12,16,32,48and 96

A store gathers some demographic information from their customers. The following chart summarizes the age-related information they collected:

Age Number of Customers
<20 78
20-30 58
30-40 53
40-50 77
50-60 52
>60 91


One customer is chosen at random for a prize giveaway.

What is the probability that the customer is at least 30 but no older than 60?

What is the probability that the customer is either older than 60 or younger than 40?

What is the probability that the customer is at least 60?

Answers

The probability that the customer is at least 30 but no older than 60 is o.45, that the customer is either older than 60 or younger than 40 is 0.68 and that the customer is at least 60 is 0.22.

We have the data:

  Age                 Number of Customers

 < 20                                78

20 - 30                             58

30 - 40                             53

40 - 50                             77

50 - 60                             52

 > 60                                91

The probability that the customer is at least 30 but no older than 60 will be:

P = 182 / 409

P = 0.45

The probability that the customer is either older than 60 or younger than 40 will be:

P = 280 / 409

P = 0.68

The probability that the customer is at least 60 will be:

P = 91 / 409

P = 0.22

Therefore we get the probability that the customer is at least 30 but no older than 60 is o.45, that the customer is either older than 60 or younger than 40 is 0.68 and that the customer is at least 60 is 0.22.

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please help


please hury

Answers

the one you highlighted is right!

Answer:

The highlighted one is correct!

61% of 407
rounding pls <3

Answers

Answer:

Step-by-step explanation:

61.407

Answer:

248.3

Step-by-step explanation:

61% of 407

61% = 0.61

0.61 * 407 = 248.27

248.27 = 248.3

248.3

Other Questions
Starting from rest, a 2-kg body acquires a speed of 8 m/s in 2 seconds. the net force acting on the body is:________ Although, you may think that if you pay close attention to a bright spot, you must be aware of it. But that is not always correct. In the phenomenon, _______, bright discs completely vanish from your awareness in full attention. Abc,+inc.+has+issued+a+19-year+bond+with+a+par+value+of+$1,000,+coupon+rate+of+12.36%.+the+yield+to+maturity+(ytm)+is+14.49%.+assume+semi-annual+payments.+what+is+today's+price+of+this+bond? Which of the following was NOT a position for a member of the WAC?A. PilotB. InfantryC. Radio Operator Explain four things that atomic theory presently states How did the church provide order for people during the Middle Ages? HELP ASAP!!! WILL MARK BRAINLIEST!!!Find the equation of the line that is perpendicular to y=2x+8 and passes through the point (8, -8).A. y = 2x + 12B. y = 1/2x - 4C. y = -1/2x - 4D. y = -2x + 12 Can someone please help me out? I dont really understand the problem. The statement of changes in stockholders' equity shows changes in ______ for an accounting period. I need this answered please Why doesnt science "prove things? What term should be used instead, and why? Read the article to help you answer this question At the end of study 2, the researchers recommendation suggests that parents in food-insecure households are subject to which role dynamic?. 17xy +4-3xTerm(s):Coefficient(s):Variable(s):Constant(s): Shep Companys records show the following information for the current year: Beginning of year End of yearTotal assets $ 53,200 $ 84,000Total liabilities $ 23,600 $ 36,600Determine net income (loss) for each of the following separate situations. (For all requirements, losses should be entered with a minus sign.)a. Additional common stock of $4,600 was issued, and dividends of $8,600 were paid during the current year.b. Additional common stock of $15,400 was issued, and no dividends were paid during the current year.c. No additional common stock was issued, and dividends of $13,600 were paid during the current year.. 2.75 divided by (2.2) If you ate a spoonful of peanut butter for breakfast, the majority of the energy would come from the _________ in the peanut butter because it _________.A. carbohydrate; contains a low ratio of oxygen atoms.B. protein; contains nitrogen in place of oxygen atoms.C. fat; contains a low ratio of oxygen atoms.D. sugar; contains high ratio of oxygen atoms. Greenfield investments are typically ________ and ________ than crossborder acquisition A 35.00 gram sample of a substance containing only Carbon, Hydrogen and Oxygen was combusted. The products of this combustion reaction were shown to be 51.29 grams of CO2 and 20.99 grams of H2O. Determine the empirical formula of the original compound given this combustion analysis data. What is the solution of the system of equations? r - 2x + 8y = -8 5x - 8y = 20 Select the best answer for the question.Read this paragraph to answer the question.He said it was because a private detective sees the dark side of human nature. But whatever the reason, Gill Landers had an innate suspicion of politicians. When Senator Randy Brillwalked into his office on that summer day in August, mopping his flushed features with a monogrammed handkerchief, Gill could think of no good reason to change his attitude. He'd only metBrill once. That had been two years ago at a country club reception for state political notables. Since then, he'd learned all he wanted to know about the senator's sinister reputation. Gill satback in his chair, put his feet on his desk, and fought to keep a poker face. But there was no way he could stop the chill that coursed along his spine like a rush of ice water.20. In the context of this paragraph, the word innate meansO A. native or inborn.O B. annoying or irritating.O C. reasonable and understandable.O D. unreasonable.