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2 years ago

Which is the completely factored form of 3x^2-12x-15

Mathematics

1 answer:

Luba_88 [7]2 years ago

6 0

Find the GCF (Greatest Common Factor)

GCF = 3

Factor out the GCF ( Write the GCF first. Then, in parentheses, divide each term by the GCF)

3(3x^2/3 + -12x/3 - 15/3)

Simplify each term in parentheses

3(x^2 - 4x - 5)

Factor x^2 - 4x - 5

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What is the gcf of 48, 64 and 72

ziro4ka [17]

The greatest common factor is 8 because Prime factor is 2 and 4, Number 48 is 4 and 1 Number 64 is 6 and o Number 72 is 3 and 0 which it would all equal 2^3 so 48 = 2^4 times 3 64 = 2^6 and 72 = 2^3 times 3^2 Hope this helps.

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2 years ago

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What is the hundred digits of pi?

Naya [18.7K]

Answer:

3.1415926535 8979323846 2643383279 5028841971 6939937510 5820974944 5923078164 0628620899 8628034825 3421170679

Step-by-step explanation:

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2 years ago

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What is the length of missing side JK? Round Answer to nearest tenth please.

zvonat [6]

Given:

Triangle LJK.

LJ = 89 in, LK = 28 in and m∠L = 42°

To find:

The length of missing side JK.

Solution:

LJ = k = 89

LK = j = 28

JK = l = ?

Using law of cosine:

$l^{2}=j^{2}+k^{2}-2 jk \cdot \cos L$

Substitute the given values.

$l^{2}=28^{2}+89^{2}-2 \cdot 28 \cdot 89 \cdot \cos 42^\circ$

$l^{2}=784+7921-4984 \cdot (0.7)$

$l^{2}=784+7921-4984 \cdot (0.7431)$

$l^{2}=784+7921-3703.6$

$l^{2}=5001.4$

Taking square root on both sides.

$l=70.7$

The length of the missing side is 70.7 in.

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3 years ago

Find the length of 1 side of square if the area is 49 sq.cm<br> method needed

ladessa [460]

Answer:

It would be 7cm

Step-by-step explanation:

please find step by step explanation on the picture

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1 year ago

Dominique decided to build his sons a fort in the backyard. He put a roof on the fort in the shape of a triangular prism.

VARVARA [1.3K]

Answer:

B. 216 ft

Step-by-step explanation:

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2 years ago

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