Plz help me with this!?!? I will mark you brainliest plz and thank you!

Answer:

f(x) = -139

Step-by-step explanation:

f(x) = 3x^2 + 10    If f(-7)

f(-7)= 3 * -7^2 + 10

F(-7) = 3 * -49 + 10

f(-7) = -147 + 10

f(-7) = -139

Answer:

-137

Step-by-step explanation:

Answer: C. (5)

Step-by-step explanation:

Answer:

Pretty sure it's C!

I also hope you don't fail

Step-by-step explanation:

in order to figure out if we can pay the car, we need to know how much it costs.

Step-by-step explanation:

There needs to be more explanation for people to help you, maybe tou can send a picture so someone can help you.

Answer:

(1, 4)

Step-by-step explanation:

5x-2y=-3 -2x-y=-6  =>

5x-2y=-3

-2x-y=-6   Multiply all three terms by -2:  4x + 2y = 12

Then we have:

5x-2y=-3

4x + 2y = 12

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

 9x = 9 and so x = 1.  Then, using -2x - y = -6,  and substituting 1 for x:

-2(1) - y = -6, or

2 + y = 6, or

y = 4

Then the solution is (1, 4)

Answer:

126

Step-by-step explanation:

Let the no. of hamburger be n

Then the no. of cheeseburgers = 3n

3n + n = 504

4n = 504

n = 504 / 4

n = 126

Answer:

65 cents

Step-by-step explanation:

4.55/7=.65

Answer:

D is the correct answer

Answer:

[tex]x,y\ could\ be\ any\ real\ numbers[/tex]

Step-by-step explanation:

[tex]As\ a\ linear\ equation\ in\ two\ variable\ has\ infinite\ solutions,\\5x-2y=18, will\ also\ have\ infinite\ solutions\ and\ x\ and\ y\ can\ take\ any\ real\ values.[/tex]

Answer:

LCM sum: 3

GCF sum: 3

3 + 3 = 6

Step-by-step explanation:

Here I listed all the factors of each number:

15: 1, 3, 5, 15

35: 1, 5, 7, 35

56: 1, 2, 4, 7, 8, 14, 28, 56

As you can see, the LCM of these numbers is 1, since none of the other factors relate to all of the number's factors. This is also the only factor that all three of these numbers share.

1 + 1 + 1 = 3

The GCF of each of the numbers is also 1.

1 + 1 + 1 = 3

Hope this helps! :D

Katie requires 16/3 cups of the soil for planting a garden for her science fair.

Algebra is a mathematical technique for calculating unknown values.

Now, for the stated question;

Katie has been planting a garden for her science fair project. She requires 2/3 of a cup of soil for each of the eight pots.

To calculate the total amount of soil required, multiply the amount required for one pot by the number of total pots.

Total soil  = (2/3)×8

Total soil  = (2×8)/3

Total soil  = 16/3

Therefore, the total amount of the soil requires for the gardening in science fair is 16/3 cups.

To know more about the equation, here

https://brainly.com/question/25976025

#SPJ9

Answer:

20

Step-by-step explanation:

12/x = 3/5

12 = 3*4

20 = 5*4

Answer: B. 1/8

Step-by-step explanation:

Answer: Knowing proportional relationships help in different ways such as in constant change, multiple representations, etc.

Hope this helped.

Answer:

m = 7

Step-by-step explanation:

An angle bisector is a line or ray that divides an angle into two equal angles

so ∠WXZ = ∠ZXY

10m - 28 = 5m + 7

10m - 5m = 7 + 28

5m = 35

m = 7

Answer:

Step-by-step explanation:

Answer:

3 1/6

Step-by-step explanation:

look on the attachment i sent

Answer:

B

Step-by-step explanation

We have

using a graph tool

see the attached figure

The solution of the system is the shaded area

we know that

The line is solid

The line passes through points and and is shaded above the line.

The line is solid

The line passes through points and and is shaded below the line

The two lines intersect at one point

therefore

the answer is the option

B) Graph of two lines that intersect at one point. Both lines are solid. One line passes through points negative 2, 2 and 0, 3 and is shaded below the line. The other line passes through points 0, 1 and 1, negative 2 and is shaded above the line.

Answer:

16/25

Step-by-step explanation:

Factor 40 out of 640 and 1000

This leaves you with 16 and 25.

Answer:

16/25

Step-by-step explanation:

640/1000

64/100

(divide 4/4)

16/25

Answer: 3x + 3

Step-by-step explanation:

Answer:

10p

Step-by-step explanation:

p + 2p + 3p + 4p

= 10p

Answer:

10p

General Formulas and Concepts:

Algebra I

Step-by-step explanation:

Step 1: Define

p + 2p + 3p + 4p

Step 2: Simplify

Answer:

x = 3

Step-by-step explanation:

This is in vertex notation which means that it is written in y = (x-h)^2 + k format where the vertex is (h,k). In this case the vertex is (3,2) which means that at the x-axis of 3, that is where the parabola is mirrored and is in fact the axis of symmetry

Explanation:

The term "bisect" means "divide in half", or "divide in two equal pieces".

Angles A = 58 and B = 96 divide in half to get 29 and 48 respectively

Find their sum and subtract it from 180 to get angle AMB

29+48 = 77

180-77 = 103

A diagram is shown below.

Answer:

B,

(i used graph paper[I made a mistake, it's not A])

The value of  the variable in the isosceles trapezoid is 24.

Since the measure of one angle should be 63 degrees

And, there is the equation 2x + 15 degrees

So for determining the value of x here we have to equate the equation

So,

2x + 15 = 63

2x = 63 - 15

2x = 48

x = 24

Therefore, The value of  the variable in the isosceles trapezoid is 24.

learn more about variable here: https://brainly.com/question/21444495

Answer:

2c put me as brainlest

Step-by-step explanation:

Let's solve for c.

b=2c+6

Step 1: Flip the equation.

2c+6=b

Step 2: Add -6 to both sides.

2c+6+−6=b+−6

2c=b−6

Step 3: Divide both sides by 2.

2c

2

=

b−6

2

c=

1

2

b−3

Answer:

c=

1

2

b−3

now if ur just looking for the funtipn the asnwer would be 2c i think

Answer:

B. -6+8d-2c  C. -2c+8d-6

Step-by-step explanation:

In order to determine which expressions are equivalent to  you need to set the expression equal to the options available.

Answer: he works 37 hours in job A, and 22 hours in job B.

Step-by-step explanation:

Let's define the variables:

A = number of hours that he works at Job A

B  = number of hours that he works at Job B.

We know that he works a total of 59hr per week, then we have:

A + B = 59

And we also know that he makes $494 in one week, then we have the equation:

A*$8 + B*$9 = $494.

Then we have the system of equations:

A + B = 59

A*$8 + B*$9 = $494

To solve this with an augmented matrix, we need to turn these equations into a matrix, where we only write the coefficients as follows:

[tex]\left[\begin{array}{cccc}1&1&I&59\\8&9&I&494\end{array}\right][/tex]

(The I's should represent a line for the augmented matrix, that line separates the values of the coefficients to the right value of each equation)

The first column represents the A coefficients, the second column represents the B coefficients.

To solve this, we want to get something of the form:

[tex]\left[\begin{array}{cccc}1&0&I&x\\0&1&I&y\end{array}\right][/tex]

Where x and y are our solutions.

To do it we can just do: Column 2 - 8*column 1, this will get us to:

[tex]\left[\begin{array}{cccc}1&1&I&59\\8 - 8*1&9 - 8*1&I&494 - 8*59\end{array}\right][/tex]

=

[tex]\left[\begin{array}{cccc}1&1&I&59\\0&1&I&22\end{array}\right][/tex]

Now we can do: Column1 - column2, to get

[tex]\left[\begin{array}{cccc}1 - 0&1 - 1&I&59 - 22\\0&1&I&22\end{array}\right][/tex]

[tex]\left[\begin{array}{cccc}1&0&I&37\\0&1&I&22\end{array}\right][/tex]

Then the solutions are:

1*A =37

1*B = 22

This means that he works 37 hours in job A, and 22 hours in job B.

Answer:

Correct!

Step-by-step explanation:

Rational numbers can be expressed as fractions of integers. Negative 22 and 99 are both integers, therefore the number is rational!

9514 1404 393

Answer:

Step-by-step explanation:

The formula for the volume of a cylinder is ...

  V = πr^2·h . . . radius r, height h

The radius of the driver's tank is half its diameter, so is (8 ft)/2 = 4 ft. Then the volume of that tank is ...

  V = π(4 ft)^2·(19 ft) = 304π ft^3

Each cubic foot of gasoline has a mass of ...

  (1728 in^3/ft^3)(0.0262 lb/in^3) = 45.2736 lb/ft^3

Then the total mass in the driver's full tank is ...

  (304π ft^3)(45.2736 lb/ft^3) ≈ 43,238.3 lb

__

The farmer's tank is a scaled-down version of the driver's tank. It's volume will be scaled by the cube of the linear scale factor, so will be (2/3)^3 = 8/27 of the volume of the driver's tank.

The farmer's tank will hold a mass of (43,238.3 lb)(8/27) ≈ 12,811 lb.

The amount remaining in the driver's tank is 43,238 -12,811 = 30,427 lb.