3 years ago

NEED HELP ASAP!!!!!!!!

Mathematics

1 answer:

Nikitich [7]3 years ago

8 0

Step-by-step explanation:

40×40=9×9+y+y

160-81=y+y

79=y+y

You might be interested in

What is 9/3 equal to

maks197457 [2]

$\frac{9}{3}$ is basically saying 9 divided by 3, and I'm sure you know that the answer is 3 :)

5 0

3 years ago

Read 2 more answers

F(x)=x^2+3x+2 2 units left

diamong [38]

Not sure what the question is but

x^2 + 3x + 2 = (x + 2)(x + 1)

6 0

3 years ago

Hey if you give me brainiest then i will help you with all of your problems but you have to friend me to

Fynjy0 [20]

Answer:

i would but it only works if i ask a question and u answer it

7 0

3 years ago

Read 2 more answers

The side lengths of a rectangular room are 10 ft and 24 ft. The room is going to be split in half along the hypotenuse of a

MA_775_DIABLO [31]

40ft hope I helped with your problem! Have a great day my comrade

6 0

3 years ago

Read 2 more answers

Please need help in these 3 algebra questions !!!!

Marysya12 [62]

Answer:

$\large\boxed{7.\ B.\ 8s^2+16s+1}\\\\\boxed{8.\ D.\ -15t^9u^{11}}\\\\\boxed{11.\ C.\ 3,\ -2}$

Step-by-step explanation:

$7.\\(3s^2+7s+2)+(5s^2+9s-1)=3s^2+7s+2+5s^2+9s-1\\\\\text{combine like terms}\\\\=(3s^2+5s^2)+(7s+9s)+(2-1)\\\\=8s^2+16s+1$

$8.\\(-3t^2u^3)(5t^7u^8)=(-3\cdot5)(t^2t^7)(u^3u^8)\qquad\text{use}\ a^na^m=a^{n+m}\\\\=-15t^{2+7}u^{3+8}=-15t^9u^{11}$

$11.\\n-the\ number\\\\n^2=n+6\qquad\text{subtract}\ n\ \text{and}\ 6\ \text{from both sides}\\\\n^2-n-6=0\\\\n^2+2n-3n-6=0\\\\n(n+2)-3(n+2)=0\\\\(n+2)(n-3)=0\iff n+2=0\ \vee\ n-3=0\\\\n+2=0\qquad\text{subtract 2 from both sides}\\n=-2\\\\n-3=0\qquad\text{add 3 to both sides}\\n=3$

4 0

4 years ago