3 years ago

(x-4)(ax^2+3x+b)=3x^2+cx^2+dx-12

Mathematics

1 answer:

Mkey [24]3 years ago

7 0

Answer:

a=3, b=3, c=-9, d=-9

Step-by-step explanation:

Expand the left side, Then combine like terms, then set the term on the left side equal to the term on the right with the same power of x (ex. set ax^3=3x^2) Then a=3. Do this for a,b,c, and d

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Simplify the expression if possible by combining like terms 9(X+5)+7(X-3)

IceJOKER [234]

So you do
distribute
a(b+c)=ab+ac
9(x+5)=9x+9 times 5=9x+45

7(x-3)=7x+7 times -3=7x-21

so now we have
9x+45+7x-21
group like terms
9x+7x+45-21
add
16x+24

simplified is 16x+24

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4 years ago

Find the surface area of the square pyramid if the slant height is 13 mm.

Tanzania [10]

Simple Question:

Find the surface area of the square pyramid if the slant height is 13 mm.

Options:

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B. 288 mm

C. 335 5 mm

D. 407 mm

Answer:

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Step-by-step explanation:

11 x 13 = 143 = 264mm

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3 years ago

A group of girls plays 2 hours of video games. They equally share the playing time between the 4 of them. How many minutes of pl

Morgarella [4.7K]

Answer:

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Step-by-step explanation:

2 hours = 120 minutes

120 divided by 4=30

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3 years ago

Read 2 more answers

Whoever answers this will get a cookieeeeeee (btw the first one is wrong, this is my 2nd attempt)

Juli2301 [7.4K]

Answer:

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Step-by-step explanation:

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3 years ago

I need help on similar triangles properties practice

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Ok what do you specifically do you need help with. While working with similar triangles there is a ratio that they dilate by ex: 1:2 could turn into 2:4

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3 years ago