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3 years ago

8

A teacher asked the class to solve the equation 3(x + 2) = 21.

2 answers:

Varvara68 [4.7K]3 years ago

6 0

3)distributive property
Robert had given 3 to each term. which then results in 3x+6=21. Then. if he further went on, you would subtract 6 from each side giving you 15 then divide 15 by 3 giving you x=5.

vivado [14]3 years ago

3 0

It is the distubitive property because he got rid of the ( )

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Is 1/2 √9 *√4 rational or irrational

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Answer:

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3 years ago

Write an explicit formula for an,the Nth term of the sequence 4,12,36

Rudik [331]

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2 years ago

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3 years ago

Consider a Triangle ABC like the one below. Suppose that C = 98, A = 74, and b = 11 (figure is not drawn to scale.) solve the tr

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Answer:

$A=73.8\°$

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Step-by-step explanation:

step 1

Find the measure of side c

Applying the law of cosines

$c^{2}= a^{2}+b^{2}-2(a)(b)cos(C)$

substitute the given values

$c^{2}= 74^{2}+11^{2}-2(74)(11)cos(98\°)$

$c^{2}=5,823.5738$

$c=76.3\ units$

step 2

Find the measure of angle A

Applying the law of sine

$\frac{a}{sin(A)}=\frac{c}{sin(C)}$

substitute the given values

$\frac{74}{sin(A)}=\frac{76.3}{sin(98\°)}$

$sin(A)=(74)sin(98\°)/76.3$

$A=arcsin((74)sin(98\°)/76.3)$

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step 3

Find the measure of angle B

we know that

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$A+B+C=180\°$

substitute the given values

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3 years ago