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3 years ago

I WILL GIVE BRAINLIEST!!!

Mathematics

1 answer:

Katyanochek1 [597]3 years ago

6 0

Answer:

g(x) = (f-x)

Step-by-step explanation:

It's relection across the y axis

==> g(x) = (f-x)

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Please explain the answer, no links or random words or I will report you.

Ainat [17]

Answer:

y=x-3 is slope-intercept form

3 0

3 years ago

A movie theater sends out a coupon for % off the price of a ticket. Write an equation for the situation, where y is the price

natali 33 [55]

The orginal price is 65

5 0

3 years ago

there are 36 pupils in mr. castro mathematics class mr. castro wants to seperate the class into equal group for doing an activit

posledela

Answer:

He can use the factors of 36 to determine the number of groups he can divide the class into such that they are equal.

The Factors (excluding 1) are;

2, 3, 4, 6, 9, 12, 18

Using these therefore he can divide them;

Into 3 groups each with 12 people.
Into 4 groups each with 9 people.
Into 6 groups each with 6 people.
Into 9 groups each with 4 people.
Into 12 groups each with 3 people.

3 0

3 years ago

Solve for w, where w is a real number.

Ber [7]

Answer:

w= 9

Step-by-step explanation:

$\sqrt{ - 4w + 61} = w - 4$

Square both sides:

-4w +61= (w -4)²

$\boxed{(a - b)^{2} = a^2 -2ab + b^2 }$

Expand:

-4w +61= w² -2(w)(4) +4²

-4w +61= w² -8w +16

Simplify:

w² -8w +16 +4w -61= 0

w² -4w -45= 0

Factorize:

(w -9)(w +5)= 0

w -9= 0 or w +5= 0

w= 9 or w= -5 (reject)

Note:

-5 is rejected since we are only taking the positive value of the square root here. If the negative square root is taken into consideration, then w= -5 would give us -9 on both sides of the equation.

Why do we use negative square root?

When solving an equation such as x²= 4,

we have to consider than squaring any number removes the negative sign i.e., the result of a squared number is always positive.

In the case of x²= 4, x can be 2 or -2. Thus, whenever we introduce a square root, a '±' must be used.

However, back to our question, we did not introduce the square root so we should not consider the negative square root value.

6 0

2 years ago

Read 2 more answers

Solve the system of equations. 3x + 4y = -23 x = 3y + 1 y = X=

horrorfan [7]

Answer:

(-5, -2)

Step-by-step explanation:

3x+4y=-23

x=3y+1

since we have what x is, we need to subsitute

3( 3y+1) + 4y= -23

no we need to multiply the number inside the parenthesis by 3

9y + 3 + 4y= -23

combine like terms ( add the numbers or variables that look alike)

9y+4y is 13y

13y+3= -23

since we need to get the y alone we need to subtract 3 on both sides since its the opposite of adding

13y+3-3=-23-3

13y= -26

now we divide 13 on both sides to get Y alone

13y/13= -26/13

y= -2

now since we have y we need to substitute it to find x

x= 3y+1

x= 3( -2) +1

now we mutliply 3 with -2

x= -6 +1

x=-5

those are ur answers

y= -2

x= -5

hope this helped:D

6 0

3 years ago

Read 2 more answers