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3 years ago

2x+3° +49° =90° What is the value of x?

Mathematics

2 answers:

3241004551 [841]3 years ago

7 0

Answer:

Step-by-step explanation:

sineoko [7]3 years ago

6 0

X=19 is the right answer

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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

2 years ago

Read 2 more answers

What is the value of n in the numerical sentence?

Harlamova29_29 [7]

Answer: n = -2

Step-by-step explanation:

5 0

3 years ago

Could I possibly get help with this?

ad-work [718]

Answer:

? = 74.64111442

Step-by-step explanation:

$\frac{sin(x)}{27}$ = $\frac{sin(90)}{28}$

= $\frac{1}{28}$

*27

= $\frac{27}{28}$

$sin^{-1}$ (27/28)

=74.64111442

5 0

3 years ago

Help I will give brainliest!!

Elena-2011 [213]

Answer:

I think it is A and D but i'm sorry if i'm wrong

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

What is the common difference between successive terms in the sequence?

Zarrin [17]

Depending on the way you look at the numbers, they are increasing/decreasing by 0.1.

0.36- 0.1 =0.26
0.26-0.1=0.16
0.16-0.1=0.06
0.06-0.1=-0.04
-0.04-0.1=-0.14
(Or vice versa by adding 0.1 starting with -0.14)

Make sense?

5 0

3 years ago