3 years ago

Write an equation to find the number of Mr.night's homeroom if the total number of students is 90

Mathematics

1 answer:

tia_tia [17]3 years ago

5 0

This question is obviosly missing an ending but, I bet you will have to divide.

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Y=-8(x+3)(x-2) in standard form

Sliva [168]

Answer:

$\large\boxed{y=-8x^2-8x+48}$

Step-by-step explanation:

The standard form of an equation of a parabola:

$y=ax^2+bx+c$

We have

$y=-8(x+3)(x-2)$ use distributive property: a(b + c) = ab + ac

$y=\bigg((-8)(x)+(-8)(3)\bigg)(x-2)$

$y=(-8x-24)(x-2)$ use FOIL: (a + b)(c + d) = ac+ ad + bc + bd

$y=(-8x)(x)+(-8x)(-2)+(-24)(x)+(-24)(-2)$

$y=-8x^2+16x-24x+48$ combine like terms

$y=-8x^2+(16x-24x)+48\\\\y=-8x^2-8x+48$

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3 years ago

Find the surface area

Mrac [35]

Answer:

Step-by-step explanation:

The surface area of a solid object is a measure of the total area that the surface of the object occupies.

8 0

3 years ago

I would like some help with this! Will mark brainliest :)

gavmur [86]

Answer:

a(n) = 10n-1 (the second one)

Step-by-step explanation:

we use formula

a(n) = a +(n-1)d (a= the first number in the, n=the times we need, d= difference)

a=9

d=9-19=10

a(n) = 9 +(n-1)10

a(n) = 9 +10n-10

a(n) = 10n-1 (the second one)

I hope it will help

3 0

3 years ago

BRAINLIEST! URGENT HELP!!!!!!

Vikki [24]

It's -5/2,-4 is right. ok?

4 0

3 years ago

Read 2 more answers

When dividing 39100 by 100 the digits in the quotient will move how many places to the right

Shalnov [3]

It will be living two places to the edith hope this helps good luck

8 0

3 years ago