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3 years ago

4(1 - 4n) + 5(- 7) please help

Mathematics

2 answers:

Roman55 [17]3 years ago

8 0

Answer: - 16n - 31

Step-by-step explanation:

4 - 16n - 35

LenKa [72]3 years ago

5 0

Distribute:
(4)(1)+(4)(−4n)+(5)(−7)=
4+−16n+−35

Combine:
4+−16n+−35=

(−16n)+(4+−35)=

Answer:
-16n+−31

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Artemon [7]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

Cual es el factor de 10?

Katarina [22]

Answer:

The factors of 10 are 1, 2, 5, and 10.

Translation: Los factores de 10 son 1, 2, 5 y 10.

Step-by-step explanation:

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3 years ago

Calculate the length b to two decimal places.

Andrej [43]

Answer:

B. 21.64

Step-by-step explanation:

We have been given a triangle and we are asked to find the length of AC (b).

We will use law of cosines to find the length of side AC.

$c^{2}=a^{2}+b^{2}-2ab \text{ cos }\theta$

Upon substituting our given values in the formula we will get,

$(AC)^{2}=15^{2}+12^{2}-2\times 15\times 12 \text{ cos}(106)$

$(AC)^{2}=225+144-360\text{ cos}(106)$

$(AC)^{2}=369-360(-0.275637355817)$

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Upon taking square root of both sides of our equation we will be get,

$AC=\sqrt{468.22944809412}$

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Therefore, the length of b is 21.64 and option B is the correct choice.

6 0

3 years ago

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Answer:

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