State which are relations. Give their domain and range. Then tell if the relation is also a function. NUMBER 8

Answer:

2x²-10x+3=0

Step-by-step explanation:

2x²+1 - 5(2x)+2=0

2x²+1 - 10x+2=0

Combine like terms.

2x²+1 - 10x+2=0

2x²-10x+3=0

Hope this helps!

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The sum of 5,238 and 2,794 is 8,032.

In math, addition is the process of adding two or more numbers together. Addends are the numbers that are added, while the sum refers to the result of the operation.

Given: 5,238 + 2,794

To add the estimate, we place the given 4-digit number 2794 below the given 4-digit number 5238, and then group the numbers into columns according to their places, such as once, tens, hundreds, and thousands.

The numbers are now added column-by-column. First, we add the number in the one's column (8+4=12), then in the tens column after carrying 1 (9+3+1=13), in the hundreds column carrying 1(2+7+1=10) and in the thousands column carrying 1 again (5+2+1=8).

So the final result of the addition is 8,032.

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Answer:

D

Step-by-step explanation:

5[tex]\sqrt{2}[/tex] + [tex]\sqrt{2}[/tex] + 3[tex]\sqrt{2}[/tex] ← factor out [tex]\sqrt{2}[/tex] from each term

= [tex]\sqrt{2}[/tex] (5 + 1 + 3)

= 9[tex]\sqrt{2}[/tex]

The value of x is 9 and the measure of AB is 27.

A linear equation is an equation that has the variable of the highest power of 1. The standard form of a linear equation is of the form Ax + B = 0.

We need to Find x and AB if B is between A and C,

Given that AB=3x, BC=14, and AC=41.

AB + BC = AC

3x+14=41

3x=27

X=9

Now substitute to find the AB;

AB=3(9)

AB =27

Therefore the value of x is 9 and the measure of AB is 27.

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Answer:

41957

Step-by-step explanation:

39429

2293

235

_______

41957

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If the ratios of the measures of the three angles is 4: 5: 11 then the measures of the three angles in a triangle is 84°, 30° and 66° respectively.

An angle is a figure in Euclidean geometry made up of two rays that share a common terminal and are referred to as the angle's sides and vertices, respectively. Angles created by two rays are in the plane where the rays are located. The meeting of two planes also creates angles. We refer to these as dihedral angles.

An angle is a figure in plane geometry that is created by two rays or lines that have a shared endpoint. The Latin word "angulus," which meaning "corner," is the source of the English term "angle." The shared terminus of two rays is known as the vertex, and the two rays are referred to as sides of an angle.

The ratios are 4: 5: 11 then

Angle A = 14, Angle B = 5, Angle C = 11

Total ratio = 14 + 5 + 11 = 30

The total angle in a triangle = 180°

Angle A

= 14 / 30 × 180°

= 0.4666666666666 × 180°

= 84°

Angle B

= 5/30 × 180°

= 0.1666666666666 × 180°

= 30°

Angle C

= 11/30 × 180°

= 0.3666666666666 × 180°

= 66°

Therefore, the measures of the three angles in a triangle is 84°, 30° and 66° respectively.

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The measures of the angles in each triangle are 36°, 45°, and 99.°

Angle A = 4

Angle B = 5

Angle C = 11

Total ratio = 4 + 5 + 11

                 = 20

The total angle in a triangle = 180°

Angle A = 4 / 20 × 180°

             = 36°

Angle B = 5/20 × 180°

             = 45°

Angle C = 11/20 × 180°

             = 99°

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Answer: 11

Step-by-step explanation:

[tex]\angle GFE=33^{\circ}[/tex] (linear pair)

[tex]\angle FEB=180^{\circ}-4x[/tex] (linear pair)

[tex]33+180-4x+x=180[/tex] (sum of angles in a triangle)

[tex]33+180-4x+x=180\\\\33-3x=0\\\\x=11[/tex]

Albert drove 5 miles farther than Tom if their speed were 50mi/h and 65 mi/hr.

Distance is the size or extent of the displacement between two places. Remember that the travel distance between two points is not the same as their distance from one another. The distance traveled is the total distance traveled to get from one place to another. Distance traveled is not a vector.

Tom's distance is calculated as

Put D= D₁, r = 50 miles per hour, and t = 2.5 hours in the distance formula

D₁ = (50 mi/h)·(2.5 h)

D₁ = 125 mi

Albert's distance is calculated as

Put D= D₂, r = 65 miles per hour, and t = 2 hours in the distance formula

D₂ = (65 mi/h)·(2 h)

D₂ = 130 mi

Comparing both the distances

Albert drove 130 -125 = 5 miles farther than Tom.

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Answer:

Step-by-step explanation:

Let,  

For English = x min.

For Biology= (x+30) min.

For Math= 3(x+30) min.

2 hours= 2*60 = 120 min.

Now,  x+(x+30)+3(x+30)=120

Or, x=  0 min.

For English = 0 min.

For Biology= 30 min.

For Math= 90 min

5:9 is degrees Celsius and the second element is its equivalent in degrees Fahrenheit.

What does a temperature in Fahrenheit mean?

F = (9/5)C+32

F = C x 9/5 + 32

C = (F - 32) x 5/9

The above equations could easily be derived by the following relationships:

Freezing Point = 0C or 32F and Boiling Point = 100C or 212F

Range from freezing point to boiling point = 100C or 180F,

i.e. C : F = 100:180 = 5:9

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The initial velocity of the runner was 2 m/s, and the runner stopped after 8 seconds. Therefore, option (b) is correct.

The velocity of an object helps to calculate the speed of the object in a particular direction. A velocity-time graphs shows the speed and direction of an object that travels over a specific period of time. They are also known as speed-time graphs too.

The vertical axis represents the velocity of an object and horizontal axis represents the time taken to cover particular distance with the speed.

Here, the ordered pairs given in the question are (0,2), (6,8) going through one line segment and for other line segment it is (6,8) and (8,0) respectively. We have to conclude various statement that matches best for the ordered pairs given to us. Let's proceed to solve this.

For (0,2), this ordered pair conclude that: At t = 0 sec, the initial velocity of the runner was 2m/s respectively.

Similarly, for (6,8) this represents that at t = 6 sec the velocity of the runner reaches at maximum. i.e., 6m/s and acceleration is 1 m/s² also from this ordered pair for another line segment a state of deceleration begins which ultimately reduces the acceleration of an object.

For (8,0), this ordered pair represents that at t = 8 sec the velocity of the object which is the final velocity it become 0 m/s i.e., the runner stopped.

From all the ordered pair we have concluded that option (b) is correct which says that the initial velocity of the runner was 2 m/s, and the runner stopped after 8 seconds.

Hence, option (b) is correct.

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The number of times that (4 x 10⁴) is higher than (1.25 x 10²) is 3.2 × 10².

It should be noted that the information is to find the number of times that (4 x 10⁴) is higher than (1.25 x 10²).

This will be calculated by dividing the values we have.

= (4 × 10⁴) / (1.25 × 10²)

= 3.2 × 10²

In conclusion, the number of times that (4 x 10⁴) is higher than (1.25 x 10²) is 3.2 × 10².

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Step-by-step explanation:

10^2=100x8 =800

800=8x100

10^2 =100.The reason is, you are basically doing 10x10=100x8=800.

The solution to the equation 7(x + 2) + 4x = 6(2x - 4) gives the result x = 38

An equation is an expression that shows the relationship between two or more numbers and variables.

Given the equation:

7(x + 2) + 4x = 6(2x - 4)

Opening the bracket gives:

7x + 14 + 4x = 12x - 24

Collecting like terms:

x = 38

The solution to the equation 7(x + 2) + 4x = 6(2x - 4) gives the result x = 38

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Answer:

8cm

Step-by-step explanation:

Given-;

BC(base)=6cm

AC(hypotenuse)=10cm

To Find-:

AB(Perpendicular)=?

Solution-:

As we know that

Pythagoras Theorem=>H²=P²+B²

By using it

=>10²=P²+6²

=>100=P²+36

=>100-36=P²

=>64=P²

Therefore, the height of AB is 8cm.

Answer:        0= negative 6

Step-by-step explanation:

The given sequence is geometric, with the common ratio = 2.

Given: 1, 2, 4, 8, ...

=> 2⁰, 2¹, 2², 2³, ...

We can see that the quotient of each two consecutive terms is 2, in the given sequence, following the necessary condition for a sequence to be geometric.

Thus, The given sequence is geometric, with the common ratio = 2.

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Using proportions, the coordinates of C are given as follows: (60,41).

A proportion is a fraction of a total amount, and the measures are related using a rule of three. Due to this, relations between variables, either direct(when both increase or both decrease) or inverse proportional(when one increases and the other decreases, or vice versa), can be built to find the desired measures in the problem, or equations to find these measures.

Point B partitions AC in the ratio 1:3, hence:

B - A = 1/4(C - A)

The x-coordinate of C is found as follows:

12 + 4 = 1/4(x + 4)

16 = 1/4(x + 4)

x + 4 = 64.

x = 60.

The y-coordinate of C is found as follows:

5 + 7 = 1/4(y + 7)

12 = 1/4(y + 7)

y + 7 = 48

y = 41.

The coordinates of C are given as follows: (60,41).

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Answer:

Step-by-step explanation:

Answer:

D - 59

Step-by-step explanation:

All the options are even except from D which is odd

Hope this helps :)

Hello,

[tex]f(x) = 4 {x}^{2} - 9[/tex]

[tex]g(x) = 4 {x}^{2} - 9 + 8 = 4 {x}^{2} - 1[/tex]

The equation of the line in standard form passing through the point (3 , 1) with slope equal to 0 is y = 1.

The equation of a line can be expressed in three different forms: standard form, slope-intercept form, and point-slope form.

The standard form of an equation of a line is expressed as ax + by = c, where a and b, if all possible must be integers, are the coefficients of variable x and y, respectively, and c is a constant. Meanwhile, slope-intercept form is given by the formula y = mx + b, where m is the slope of the line and b is the y- intercept. On the other hand, given the slope m and a point on the line (x , y), we can express the equation in point-slope form, (y - y1) = m(x - x1).

Using the point slope form, plug in the values of the slope and the point to set up the equation.

(y - y1) = m(x - x1)

where m = 0 and (x1 , y1) = (3 , 1)

(y - 1) = 0(x - 3)

y - 1 = 0

y = 1

Since the variable(s) is already isolated at one side and the constant on the other side, the equation is y = 1 already in standard form.

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Answer:

0.6508

Step-by-step explanation:

The standard normal distribution has a mean μ= 1 and standard deviation σ = 0

The area under the normal curve for any z value say Z i.e. P(z ≤ Z) can be read off from the Standard Normal Tables or just use a statistical calculator

Using a calculator is best
I see the lower z score as - 2.61 and the upper z score as 0.4

P(-2.61 ≤ z ≤ 0.4) = P(0.4) - P(-2.61)

P(z ≤ 0.4) = 0.65542

P(z ≤ -2.6) = 0.0045271

P(z ≤ 0.4) - P(z ≤ -2.6)  = 0.65542 - 0.0045271  = 0.6507588 = 0.6508 rounded to 4 decimal places

(Note: some calculators are able to directly compute the area between two z values)

Answer:

5/12

Step-by-step explanation:

Answer:

24 is the least common factor of 5/8 - 5/12.

The given rational and irrational numbers can be ordered from least to greatest as follows; -2 3/5 < 10/3 < 3 7/8 < 3.9 < √20.

It follows from the task content that the numbers given are rational and irrational numbers.

To order the numbers, they should be converted to decimal numbers as follows;

-2 3/5 = -2.6

√20 = 4.47

3.9 = 3.9

10/3 = 3.33

3 7/8 = 3.875

Hence, the order from least to greatest is; -2 3/5 < 10/3 < 3 7/8 < 3.9 < √20.

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The measure of the angle ADB is 65 degrees

The angles are given as

Angle ADB = (7x + 2) degrees

Angle CDB = (3x - 2) degrees

The angles are complementary angles

This means that they add up to 90 degrees

So, we have:

ADB + CDB = 90

This gives

7x + 2 + 3x - 2 = 90

Evaluate

10x = 90

Divide by 10

x = 9

Substitute x = 9 in Angle ADB = (7x + 2) degrees

Angle ADB = (7 x 9 + 2) degrees

Evaluate

Angle ADB = 65 degrees

Hence, the measure of the angle ADB is 65 degrees

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Answer:

Step-by-step explanation:

2 2/3

The inequality to model this situation is given by x>60 .

Inequality is defined as the relationship between a variable and a constant or two variables which can be written in the form of an equation using the notations < , > , ≤ or ≥ .

Let us consider the number of bags of lettuce bought be x.

Therefore amount needed to buy x bags from Val's veggies is :

250 + 1.5 x

And the amount needed to buy x bags from Sally's Salads is :

100 + 4 x

Now it is given that Val's Veggies need to be cheaper than Sally 's.

a) Therefore we will write an inequality and solve it for x:

∴ 250 + 1.5 x < 100 + 4 x

moving the variables and constants together

or, 1.5 x - 4 x < 100 - 250

or, - 2.5x < -150

or, x > 60

b) Therefore from the inequality we can conclude more than 60 bags of lettuce needs to be purchased for Val's cost to be cheaper.

c) Set notation: {x ∈ Z | x>60}

interval notation : x∈(60.∞)

Therefore from the inequality , the number of bags to be purchased must be more than 60.

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Answer: (x-2)(x+7)

Step-by-step explanation:

Answer: (x+7)(x-2)

Step-by-step explanation:

[tex]x^2+5x-14=\\x^2+7x-2x-14=\\x(x+7)-2(x+7)=\\(x+7)(x-2)[/tex]

Answer:

-31

Step-by-step explanation:

You use pemdas which is

parathesis

exponents

multiply or divide, use in order

then add or subtract, use in order

(-8)+(-3)+(-4)(7)÷14+9(-2)

multiply first

-4*7=-28

(-8)+(-3)+(-28)÷14+9(-2)

Divide next

-28÷14=-2

(-8)+(-3)+(-2)+9(-2)

multiply again

9*(-2)=-18

(-8)+(-3)+(-2)+(-18)

now add

-8+(-3)=-11

(-11)+(-2)+(-18)

add again

-11+(-2)=-13

(-13)+(-18)

add for the last time

-13+(-18)=-31