Ask question

Ask question

All categories

3 years ago

15

X and Y

1 answer:

Sholpan [36]3 years ago

4 0

Step-by-step explanation:

just substitute X and Y by their numerical values.

a) -5(4)+5(-1)=-25

-20-5= -25

-25= -25. true

b) 3(4)+2(-1) = 10

12 -2 =10

10=10. true

You might be interested in

Eliminate the parameter to complete the statements describing the equations

Talja [164]

Answer:

A

ellipse

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

What is your number?

Goryan [66]

Answer:

13 and 11

Step-by-step explanation:

how is helpful

5 0

3 years ago

Read 2 more answers

Describe the steps needed to solve 8x-12y=-3 for y.

Sholpan [36]

Answer:

y = (2 x)/3 + 1/4

Step-by-step explanation:

Solve for y:

8 x - 12 y = -3

Subtract 8 x from both sides:

-12 y = -8 x - 3

Divide both sides by -12:

Answer: y = (2 x)/3 + 1/4

4 0

3 years ago

Find the value of the missing coefficient in the factored form of 27f^3 + 125g^3. 27f^3+125g^3=(3f+5g)(9f^2-?fg + 25g)^2

7nadin3 [17]

Answer:

15

Step-by-step explanation:

The formula for factoring a sum of cubes is:

$a^3+b^3=(a+b)(a^2-ab+b^2)$

We have a=3f and b=5g here.

So a*b in this case is 3f*5g=15fg.

The ? is 15.

6 0

3 years ago

I need help with this question

Bingel [31]

The pattern is count by 2

7 0

3 years ago