3 years ago

Combine like terms. Please help me.

Mathematics

1 answer:

My name is Ann [436]3 years ago

3 0

Answer:

15y^2-45

Step-by-step explanation:

5y^2+10y^2-45 = 15y^2-45

You might be interested in

Find the solutions to 6x^2- 54x = 0

Nina [5.8K]

Answer:

A. x = 9

D. x = 0

Step-by-step explanation:

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$6x^{2} -54x=0$

$a=6\\b=-54\\c=0$

substitute in the formula

$x=\frac{-(-54)(+/-)\sqrt{-54^{2}-4(6)(0)}} {2(6)}$

$x=\frac{54(+/-)54} {12}$

$x=\frac{54(+)54} {12}=9$

$x=\frac{54(-)54} {12}=0$

therefore

The solutions are x=0 and x=9

4 0

3 years ago

What is the domain and range of the equation y = -(x - 3)2 + 9

vekshin1

Answer:y=9

Step-by-step explanation:

6 0

3 years ago

Question 3.<br> How do you write 4% as a decimal?<br> A) 0.4<br> B) 0.40<br> C) 0.04

AnnyKZ [126]

C. 0.04 would be the correct answer.

5 0

3 years ago

Read 2 more answers

Which equation is true when the value of x is -127

notsponge [240]

Hbshsheheuwjjwhwegwhehheueh

7 0

3 years ago

What is x and y using substitution

Bad White [126]

X-5y=36
x+y=-26

y=-26-x

x-5(-26-x)=36
x+130+x=36
2x+130=36
2x=36-130
2x=-94
x=47

5 0

4 years ago

Read 2 more answers