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3 years ago

Help me with this please!!

Mathematics

1 answer:

devlian [24]3 years ago

8 0

Answer:

Well if you were to fund out what the numbers of the variables are, you would have to multiply it by 50, then you are to divide THAT by two to hey your answer

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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

a total of 695 tickets were sold for the school play. They were either adult or student tickets. There was 55 fewer students tic

FinnZ [79.3K]

Answer:

375 + 320

Step-by-step explanation:

375 adult

320 students

equals 395

4 0

2 years ago

What is the image point of (6, 7) after a translation left 5 units and up 3

BlackZzzverrR [31]

Answer:

the new point would be (1, 10).

Step-by-step explanation:

if you start with the point (6, 7) and go left 5 units and up 3 units, then the new point you land on is (1, 10) as you can see in the picture below. hope this helped!

6 0

3 years ago

Please Help Me.

My name is Ann [436]

They are Vertical Angles as they are directly across from one another.

7 0

3 years ago

When is a quadrilateral a parallelogram?

brilliants [131]

C. when opposite sides are congruent and parallel

6 0

3 years ago