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3 years ago

If 3r + 2s = r - 8, then r + s =

Mathematics

1 answer:

77julia77 [94]3 years ago

8 0

Answer:

r + s = -4

Step-by-step explanation:

3r + 2s = r - 8

3r + 2s - r = -8

2r + 2s = -8

r + s = -8/2

r + s = -4

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2.5 million increases to 3.8 million what is the percent increase

Crank

This is a 52% increase.

The answer and the work is attached in the image provided.

6 0

3 years ago

I don’t know the answer or how to do this, help!

makvit [3.9K]

Answer:

Step-by-step explanation:

y = x^2 - x - 12

y = (x-4)×(x+3) that means x it either 4 or -3

y = x + 3

for x = 4 ➡ y = 3+4 ➡7

for x = -3 ➡ y = -3 + 3➡0

(the answer key is most probably faulty there's no way for y to be 0 in both scenarios)

6 0

3 years ago

Calculate the axis of symmetry in the equation Y = (x+1) (x-4)

algol [13]

Answer:

Every parabola has a turning point called the axis of symmetry,so for this question you just have to find the turning points

x turning point= -b/2a,and the y turning point is gotten by replacing the value of x in the equation

y=(x+1)(x-4)

=x^2-3x-4

a is 1,b is -3 and c is -4

x= -(-3)/2(1)

=1.5

and y=x^2-3x-4

=1.5^2-3(1.5)-4

= -6.25

therefore the axis of symmetry is (1.5,-6.25)

I hope this helps

6 0

3 years ago

(2/3)^3(1/5•2/3)^-3(1/5)^4 PLS HELP

Gnom [1K]

Answer:

1/5

Step-by-step explanation:

You have to do whats in the parentheses first then you start doing to exponets from left to right then you would multiply then you would get your answer 1/5.

4 0

4 years ago

Given that a function, h, has a domain of -3 ≤ x ≤ 11 and a range of 1 ≤ h(x) ≤ 25 and that h(8) = 19 and h(-2) = 2, select the

MrRissso [65]

A function assigns the value of each element of one set to the other specific element of another set. The correct option is D.

<h3>What is a Function?</h3>

A function assigns the value of each element of one set to the other specific element of another set.

Given that a function, h, has a domain of -3 ≤ x ≤ 11 and a range of 1 ≤ h(x) ≤ 25 and that h(8) = 19 and h(-2) = 2.

1.) h(8) = 21

Since the value of h(8) is 19. This can not be the correct option.

2.) h(-3) = -1

Since the range is from 1 to 25. Therefore, this is not the correct option.

3.) h(13) = 18

Since the domain is from -3 to 11. Therefore, this is not the correct option.

4.) h(2) = 16

This is the only option that is feasible. Thus, this is the correct option.

Hence, the correct option is D.

Learn more about Function:

brainly.com/question/5245372

#SPJ1

3 0

2 years ago