22

Select the correct answer.

Which rational number is positive?

Ο Α. .

O

B.

C.

TI SI VA IT 13

OE.

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Answer:

X = 5

Step-by-step explanation:

Angles on a straight line=180°

180-151=29°

sum of angles in a triangle= 180°

11x-1+20-3+29=180

11x+20x-3-1+29=180

31x+25=180

31x=180-25

31x=155

divide both sides by 31

X=5

(11x-1)°= 55-1= 54°

(20x-3)°= 100-3= 97°

54°+97°+29°=180°

Answer:

15,894.06

Step-by-step explanation:

HI there!

This is a compound interest question, so we will use the formula

[tex]x = p(1+\frac{r}{n})^n^t[/tex]

P being our principle amount, $15,000 in this case,

R being our rate, or 1.25

N being our compound rate, which is semiannually, or twice a year.

T is our time, being 3.

After plugging these values in, we get

15,894.06

I hope this helps!

Answer:

I think its 12.56

Step-by-step explanation:

Multiply 4 and 3.14(thats pi)

Answer:

The distance of two complex numbers

[tex]z_{1} z_{2} = \sqrt{82}[/tex]   = 9.055

Step-by-step explanation:

Step(i):-

Given that z₁ = 6-3i and z₂ = -3-4i

We know that 'z' represents a point on the argand plane with absicca 'x' and ordinate 'y'

Now given points are ( x₁ , y₁)  = (6 ,-3) and (x₂, y₂) = (-3 , -4)

Step(ii):-

The distance of two points

               [tex]\sqrt{(x_{2} -x_{1} )^{2} +(y_{2} - y_{1} )^{2} }[/tex]

     z₁ z₂  [tex]= \sqrt{(-3-6)^{2} +(-4-(-3)^{2} }[/tex]

     [tex]z_{1} z_{2} = \sqrt{81+1}[/tex]

    [tex]z_{1} z_{2} = \sqrt{82}[/tex] =9.055

Answer:

gfdsgfds

Step-by-step explanation:

fdgdsf

jackie is weird cus she is and because cookies ar goodStep-by-step explanation:

go to \ type this in

Answer:

(x+12)(x-15)

Step-by-step explanation:

Answer:

0.1425 = 14.25% probability that the individual's pressure will be between 119.4 and 121.4mmHg.

Step-by-step explanation:

When the distribution is normal, we use the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this question, we have that:

[tex]\mu = 120, \sigma = 5.6[/tex]

Find the probability that the individual's pressure will be between 119.4 and 121.4mmHg

This is the pvalue of Z when X = 121.4 subtracted by the pvalue of Z when X = 119.4. So

X = 121.4

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{121.4 - 120}{5.6}[/tex]

[tex]Z = 0.25[/tex]

[tex]Z = 0.25[/tex] has a pvalue of 0.5987

X = 119.4

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{119.4 - 120}{5.6}[/tex]

[tex]Z = -0.11[/tex]

[tex]Z = -0.11[/tex] has a pvalue of 0.4562

0.5987 - 0.4562 = 0.1425

0.1425 = 14.25% probability that the individual's pressure will be between 119.4 and 121.4mmHg.

Answer:

the answer is 19.2

Answer:

The value of y = 19.2.

Answer: 15%

Step-by-step explanation:

From the question, we are informed that a survey results of a middle school shows that 3/20 of the students played football.

The percentage of the students that play football in this schools would be calculated as multiplying the fraction by 100. This will be:

= 3/20 × 100

= 3 × 5

= 15%

Answer:

[tex]x=\sqrt{24}[/tex]

Step-by-step explanation:

2x^2+25=73

Subtract 25 from both sides:

2x^2=48

Divide both sides by 2:

x^2=24

Square both sides:

[tex]\sqrt{x^{2} } =\sqrt{24}[/tex]

[tex]x=\sqrt{24}[/tex]

Answer:

Flipping three coins: Each coin has 2 equally likely outcomes, so the sample space is 2 • 2 • 2 or 8 equally likely outcomes. Rolling a six-sided die and flipping a coin: The sample space is 6 • 2 or 12 equally likely outcomes.

...

First coin Second coin outcome

H T HT

T H TH

T T TT

Step-by-step explanation:

sorry if its wrong mate

Answer:

The answer is C!

Step-by-step explanation:

Answer:

The relationship between the quantities is “Times 9.”

Step-by-step explanation:

people says it is c and this is the answer to c

Answer:

2sqrt(3)

Step-by-step explanation:

.............

Answer: x + 2

Step-by-step explanation:

Given the equation to solve by long division :

Divide x² - x - 6 by x - 3

x in the divisor is used to divide the x² in the Dividend to obtain a value of x as the quotient. The quotient value is multiplied by each value in the Dividend and so on.

This steps taken obtain the quotient is clearly shown in the picture attached.

Answer:

you can get 360 miles on a full tank

Step-by-step explanation:

Answer:

Every 1 Gallon will get you 30 Miles

So, if you have 12 Gallons then you can travel 360 Miles

You just multiply the amount of miles you can travel per gallon by the total amount of gallons that can be held by the gas tank. This will get you the max miles you can drive before running completely out of gas.

Answer:

3n+3=5.4

3n=2.5

n= 4/5

Step-by-step explanation:

0.8

With f(x) is an exponential function, the value of function f(0.5) is 0.88.

Given that, f(-0.5)=27 and f(1.5)=21.

We know that, general form of exponential function, [tex]f(x)=ab^x[/tex].

Here,

[tex]f(-0.5)=ab^{-0.5}[/tex]

[tex]ab^{-0.5}=27[/tex] -----(i)

Now,

[tex]f(1.5)=ab^{1.5}[/tex]

[tex]ab^{1.5}=21[/tex] -----(ii)

From the equation (i) and (ii), we get

[tex]\frac{ab^{1.5}}{ab^{-0.5}}=\frac{21}{27}[/tex]

[tex]ab^2=0.7778[/tex]

[tex]ab=\sqrt{0.7778}[/tex]

[tex]ab=0.8819[/tex]

Now, [tex]f(0.5)=(0.7778)^{0.5}[/tex]

f(0.5)=0.8819

f(0.5)≈0.88

Therefore, the value of function f(0.5) is 0.88.

Learn more about the exponential function here:

brainly.com/question/11487261.

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Answer:

About 8 years

Step-by-step explanation:

3% of $800 is $24

$24 x 8 is $192 add that to the $800 and you get $992

Answer: 6 units

Step-by-step explanation:

Move 6 units to the right and you will be on the line

Answer:

the temperature in the evening is -43 degrees

Step-by-step explanation:

brainliest

Step by step explanation: -28-15

When adding negative with positive it will always be negative so for this question, subtract -28 with 15 which would be -48. So -48 would be the temperature in the evening.

Final Result: -43

Answer:

The solution to the equation will be:

[tex]x=\sqrt[3]{2},\:x=-\sqrt[3]{2}[/tex]

or

[tex]x = 1.26[/tex] , [tex]x = -1.26[/tex]

Step-by-step explanation:

Given the expression

[tex]\left(3x^2\right)\left(3x^4\right)=36[/tex]

simplify

[tex]9x^6=36[/tex]

Divide both sides by 9

[tex]\frac{9x^6}{9}=\frac{36}{9}[/tex]

[tex]x^6=4[/tex]

[tex]\mathrm{For\:}x^n=f\left(a\right)\mathrm{,\:n\:is\:even,\:the\:solutions\:are\:}x=\sqrt[n]{f\left(a\right)},\:-\sqrt[n]{f\left(a\right)}[/tex]

[tex]x=\sqrt[6]{4},\:x=-\sqrt[6]{4}[/tex]

solving

[tex]x=\sqrt[6]{4}[/tex]

  [tex]=\sqrt[6]{2^2}[/tex]

Apply exponent rule:   [tex]\left(a^b\right)^c=a^{bc}[/tex]

  [tex]=\sqrt[6]{2^2}=2^{2\cdot \frac{1}{6}}[/tex]

   [tex]=\sqrt[3]{2}[/tex]

   [tex]= 1.26[/tex]

Thus,

[tex]x=\sqrt[3]{2}[/tex]   (or  [tex]x = 1.26[/tex] )

similarly solving

[tex]x=-\sqrt[6]{4}[/tex]

[tex]x=-\sqrt[3]{2}[/tex]  or ([tex]x = -1.26[/tex])

Therefore, the solution to the equation will be:

[tex]x=\sqrt[3]{2},\:x=-\sqrt[3]{2}[/tex]

or

[tex]x = 1.26[/tex] , [tex]x = -1.26[/tex]

Answer:

[tex]3 {x}^{2} \times 3 {x}^{4} = 36 \\ 9 {x}^{6} = 36 \\ {x}^{6} = 4 \\ \boxed{x = \sqrt[6]{4} }[/tex]

is the right answer.

Answer:

Here's what we know:

n + d = 20 (there are a total of 20 nickels and dimes)

.05n + .1d = 1.4 (total change equals $1.40)

There are a couple of ways to solve this. You can go the elimination method by multiplying the second equation by an amount to get rid of a variable, or we can go substitution by isolating a variable in the first equation. I'll go with elimination in this case:

-10(.05n + .1d = 1.4) this will cause the d-variable to equal 0:

n  +  d = 20

-.5n - d = -14

------------------

.5n = 6

n = 12

Now that we know n, we can solve for d:

12 + d = 20

d = 8

Check:

.05 * 12 + .1 + 8 = 1.4

.6 + .8 = 1.4

1.4 = 1.4

:)

Answer:

the answer is c.23

Step-by-step explanation:

Length of one side of a fence around the square area is equals to 23.

" A Square is a quadrilateral whose all four sides are of equal length and measure of all the angle is 90°."

" Area is the surface which represents the amount of space occupied by any two dimensional object."

Formula used

Area of a square = (side)²

According to the question,

Area of a square = 529

⇒ (side)² = 529

⇒ side = 23

Hence the Length of one side of a fence around the square area is equals to 23.

Learn more about Area of a square here

https://brainly.com/question/1658516

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