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3 years ago

What is the value of n in the numerical sentence?

Mathematics

1 answer:

Harlamova29_29 [7]3 years ago

5 0

Answer: n = -2

Step-by-step explanation:

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PLEASE HELP!

eduard

Answer:

B) 2828.427g

Step-by-step explanation:

Hope this helps!

7 0

3 years ago

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When 18 is added to 6 times a certain number the result is 168. what is the number

Vlad1618 [11]

18+6x?= 168
try taking away the 18 and 6 then dividing it

3 0

3 years ago

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Make t the subject of this formula. r = 7 (t + 3)

kari74 [83]

Answer:

t= r-21

Step-by-step explanation:

r = 7(t+3)

expanding the bracket

r = 7t + 21

bringing t to the left hand side

7t = r - 21

divide both sides by seven

t= r-21

3 0

3 years ago

Ayuda cual es el valor numerico de -11ab?

Dmitrij [34]

Can u translate this to English so we can respond and answer please?

8 0

3 years ago

Find the value of x

kodGreya [7K]

Answer:

Last Option

Step-by-step explanation:

We have a triangle and we know its three sides.

We want to find one of your anguos. Then we use the cosine theorem.

$c ^ 2 = a ^ 2 + b ^ 2 -2abcosx$

Where

$c = 14\\a = 11\\b = 19$

Now we solve for x from the equation

$c ^ 2 = a ^ 2 + b ^ 2 -2abcosx\\\\\\14^2 = 11^2 + 19^2 -2(11)(19)cosx\\\\14^2 -11^2 -19^2 = 2(11)(19)cosx\\\\-286=2(11)(19)cosx\\\\cosx = \frac{-286}{2(11)(19)}\\\\x = arcos(\frac{-286}{2(11)(19)})\\\\x = 46.8\°$

6 0

3 years ago

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