SOMEONE HELP WITH MATHYH!!!

f(-4)=2-3x

Answer:

the required equation is y - 2/5x = 11/5

Step-by-step explanation:

7k² + 3k - 10

= 7k² + ( 10 - 7 ) k - 10

= 7k² + 10k - 7k - 10

= k( 7k + 10 ) - 1( 7k + 10)

= ( 7k + 10) ( k - 1)

Hope it will help :)

Answer:

Step-by-step explanation:

Use the Pythagorean Theorem to determine the roots

k = 1,-10/7

7k^2+3k-10 = 7(k-1)(k+10/7) = (k-1)(7k+10)

Answer:

(72 divided by 6) + 6

Step-by-step explanation:

78 divided by 6 is 13. The question (72 divided by 6) + 6 does not equal to 13, it equals to 14, therefore (72 divided by 6) + 6 is not equivalent.

Answer:

(72 divided by 6) + 6

Step-by-step explanation:

Answer:

first box:6

second box: 1

Step-by-step explanation:

divide bothe 18b and 3y by 3 and you get those values.

Answer: 1. 3b 18y

Step-by-step explanation:

Answer:

x=5

Step-by-step explanation:

im close to ranking up btw

Answer:

X = 5

Step-by-step explanation:

All angles have to add up to 180°

Hope this helps. Pls give brainliest.

Answer:

D and E

Step-by-step explanation:

Answer:

ITS IS D (4,-3)

Step-by-step explanation:

Ap ex

The coordinates of M is M’(4,-3).

Rotation means the circular movement of an object around a center. It is possible to rotate different shapes by an angle around the center point.

Given:

LMNP is rotated 90° clockwise around the origin.

If we rotate the figure in LMNP  about 90 degrees then the coordinates will change into

(x, y)  to (y, -x).

As, x= 3, y=4

Hence, the coordinates of M is M’(4,-3).

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Given:

Cost of a jacket = $20

Then sells it to customers for 80% more than.

To find:

The selling price of the jacket

Solution:

We have,

Cost of a jacket = $20

Selling price = cost + 80% of cost

                     = [tex]20+\dfrac{80}{100}\times 20[/tex]

                     = [tex]20+\dfrac{8}{1}\times 2[/tex]

                     = [tex]20+16[/tex]

                     = [tex]36[/tex]

Therefore, the selling price of the jacket is $20.

Answer:

Step-by-step explanation:

-40x + 8y = -24

 3x  -  8y = 24

-37x = 0

x = 0

0 + y = -3

y = -3

(0, -3)

Answer:

I will show you how to solve for x and y.

Step-by-step explanation:

-5x + y = -3

3x - 8y = 24

You can isolate y in the first equation, and substitute that into the second equation.

so to isolate y in -5x + y = -3, you would add 5x to both sides

this gives you y = 5x - 3

Then substitute this y into the equation below.

3x - 8(5x-3) = 24     (this way, the y variable disappears)

then distribute the 8 into the bracket

3x - 40x + 24 = 24

combine the variables

-37x + 24 = 24

isolate x by moving the constants to one side

-37x = 0

so x = 0

I am not sure if you want the rest, but here it is.

substitute x = 0 into one of the equations.

-5x + y = -3

-5(0) + y = -3

y = -3

Answer:

-1/2x+3=y

to find xint make y=0

-1/2x+3=0

-1/2×=-3

x=6

so xint=6

to find yint make x=0

-1/2(0)+3=y

y=3

yint=3

Step-by-step explanation:

[tex]v = \frac{4}{3} \times 3 \times {2}^{3} = 4 \times 8 = 32 \: {cm}^{3} [/tex]

Answer: See explanation

Step-by-step explanation:

Let the width be x

Then, the length will be x+4

Area = Length × Width

Therefore,

x × (x+4) = 60

x² + 4x = 60

x² + 4x - 60 = 0

x² + 10x - 6x - 60 = 0

x(x + 10) - 6(x + 10) = 0

(x - 6)(x + 10) = 0

x - 6 = 0

x = 6

The width is 6feet

Length = 6+4 = 10 feet

Answer:

12:18 and 20:30

Step-by-step explanation:

Answer:

12:18? n 20:30?

Step-by-step explanation:

sorry if im rong

Answer:

20 minutes

Step-by-step explanation:

Find the speed per km. 2km/8min. This is 4 minutes per km.

Next, multiply the minutes per km by km. 4 min x 5 km.

This equals 20 :)

=========================================

Explanation:

You move the decimal point two spots to the left to go from 2.85% to 0.0285

Or you can think of it like this:

2.85% = (2.85)/100 = 0.0285

since "percent" means "per 100"

Answer:

x5y2 or A

Step-by-step explanation:

on edg 2021

The simplification of expression [tex]\frac{x^{6}y^{4} }{xy^{2} }[/tex]  is  [tex]x^{5}y^{2}[/tex].

Finding a solution to a complicated calculation that may involve square roots, cube roots, plus and minus integers, division, multiplication, and other mathematical operations is typically referred to as simplification.

The number of times a number has been multiplied by itself is referred to as an exponent.

Rule of the product of powers: When multiplying like bases, add the powers together.

Rule of the quotient of powers: When splitting like bases, take the powers out.

The expression is given as

[tex]\frac{x^{6}y^{4} }{xy^{2} }[/tex]

Applying multiplication and product rule, one power of x will be reduced and 2 power of y will be reduced.

Thus, the the simplified equation will become [tex]x^{5}y^{2}[/tex].

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Answer:

$84.50

Step-by-step explanation:

Answer:

$84.504

Step-by-step explanation:

20% of 70.42 is 14.08, 14.08 plus 70.42 is 84.504

Answer:

Answer: The 4 consecutive odd integers are 15, 17, 19, 21.

Answer:

15 + 17 + 19 + 21= 72

Step-by-step explanation:

hope this helped!

Answer:

The first option

Step-by-step explanation:

Because when you multiply the first equation by 2, it sets the -x to -2x which helps cancel the variable out allowing you to easily solve the system of equations.

Answer:

met is het yitr toyourt

Step-by-step explanation:

Answer:

-0.76

Step-by-step explanation:

Answer:

-0.76

Step-by-step explanation:

this is pretty simple subtraction but you just take 14.36 and subtract it by 15.12 and you know it will be a negative number because 15.12 is bigger than 14.36 and so your answer is -0.76

Answer:

X-intercept

Step-by-step explanation:

A "zero" of a function is thus an input value that produces an output of 0. An alternative name for such a point (x, 0) in this context is an x-intercept.

Answer:

0.6

Step-by-step explanation:To find this answer, you must thinkk of the slash inbetween the numerator and the denominator. So divide the 3 bye the 5. Use a calculator if needed. 3/5=0.6 Hope this helped plz mark brainliest.

Answer:

9

Step-by-step explanation:

10% of 240= 24

216/24= 9

Answer:

c

Step-by-step explanation:

Answer:

x=19

Step-by-step explanation:

First, you place the numbers in place of the variables in their relative positions using the pythagorean theorem:

[tex]15^{2} +x^{2}=24^{2}[/tex]

Then you square the numbers that you currently have:

[tex]225+x^{2}=576[/tex]

Then subtract 225 from both sides to isolate the x:

[tex]x^{2} =576-225[/tex]

This gives you the equation:

[tex]x^{2} =351[/tex]

Then take the square root of both sides which gives you:

[tex]x=18.7349939952[/tex]

Then round to the nearest whole number which gives you x=19