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2 years ago

Can someone explain what the answer is to this and how? Thank u!!!

Mathematics

1 answer:

Sloan [31]2 years ago

7 0

The answer is D.
You cannot factorise it as there are two different terms being squared with the middle term containing both. Also, if you expand any of the brackets in the questions you will not get the original equation so non of them are right so it has to be D. :)

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Grade 8 math question plz show work

Nimfa-mama [501]

A. The population would be 120

You would find 20 percent of 100
To do that, you do 100× 0.2 and add that to 100

B. The population doubles

10×2= 20
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2 years ago

Kay solves the following system of equations using the substitution method.

Vladimir [108]

Answer:

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Step-by-step explanation:

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3 years ago

A restaurant earns $1073 on Friday and $1108 on Saturday. Write and solve an equation to find the amount xx (in dollars) the res

julia-pushkina [17]

Money earned by restaurant on Friday=$1073

Money earned by restaurant on Saturday=$1108

Let Money earned by restaurant on Sunday=$x

Average=$1000

$\text { average}=\frac { sum of all the observation}{total number of observation}$

Number of observation=3

⇒ 3× 1000=1073+1108+x

⇒3000= 2 181+x

⇒3000-2181=x

⇒x=819

The restaurant needs to earn on Sunday to average $1000 per day over the three-day period=$819

6 0

2 years ago

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What is the volume of the triangular prism below

cestrela7 [59]

The volume is 4.5 ft^3.

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3 years ago

{ x + y = -2<br> { x - y = -8

g100num [7]

Answer:

(-5, 3)

Step-by-step explanation:

Elimination seems like the best method to use here.

x+y=-2

x-y=-8

---------

2x=-10

Divide everything by two

x=-5

Now plug it back into one of the original equations,

-5+y=-2

Add 5 to everything

y=3

7 0

2 years ago

Read 2 more answers