All categories

3 years ago

Find x (Round to the nearest tenth). PLS HURRY

Mathematics

1 answer:

Gre4nikov [31]3 years ago

4 0

Answer:

x = 28.4°

Step-by-step explanation:

The cos(x) = 15/17 ≈ 0.88

The acos(0.88) = 28.4°

You might be interested in

Hannah got a $23,400 Unsubsidized Loan to help her pay for college but she wants to pay off the interest only while she is a stu

Radda [10]

Step-by-step explanation:

lícita; de navegar y comerciar; de peticionar a las autoridades; de entrar, permanecer, transitar y salir del territorio argentino; de publicar sus ideas por la prensa sin censura

3 0

3 years ago

Please help 21 points!!!!!

harina [27]

Step-by-step explanation:

The measure of angle y is 62°.

I solve this by

We know: Measures of interior angles in a triangle add up to 180°.

Therefore we have the equation:

60° + 58° + y = 180°

118° + y = 180° subtract 118° from both sides

118° - 118° + y = 180° - 118°

y = 62°

The measure of angle x is 122°.

I solve this by

Angles 58° and x are supplementary angles.

Supplementary angles add up to 180°.

Therefore we have the equation:

x + 58° = 180° subtract 58° from both sides

x + 58° - 58° = 180° - 58°

x = 122°

8 0

3 years ago

What angle in radians is subtended by an arc 1.50 m long on the circumference of a circle of radius 2.50 m? what is this angle i

Evgen [1.6K]

Working on the same question

3 0

4 years ago

Please help me on this question ASAP if you do ill give you brainliest!

Alexeev081 [22]

Answer:

1. 2/21

2. 7/45

3. 9/26

4. 4/61

5. 3/29

6. 8/61

Step-by-step explanation:

I'll just explain number one, since you can do the same thing to solve all the others.

You start with 10 1/2. You can make this an improper fraction by multiplying 10 and 2, then adding one. This leaves you with 21/2. The reciprocal of a fraction is just the numerator and denominator of the fraction flipped. So, you get 2/21.

Hope this helps!

4 0

3 years ago

Factor completely: 64 - y^3

madam [21]

From your equation, you can see that you have a difference of two cubes (aka two cubes being subtracted): 64, which is $4^{3}$ , and $y^{3}$ .

There is rule for the difference of two cubes:
The difference of two cubes is equal to the difference of the cube roots times a binomial, which is the sum of the squares of the roots plus the product of the roots.

That sounds pretty confusing, but it's much easier to understand when put mathematically. Let's say our two cubes are $a^{3}$ and $b^{3}$ . The difference of those two cubes is:
$a^{3} - b^{3} = (a - b)( a^{2} + ab + b^{2})$

In our problem, a = 4 (since $a^{3}$ = 64) and b = y (since $b^{3} = y^{3}$ . Plug these values into the rule to find the factor of $64 - y^3$ :
$64 - y^3 \\
= (4 - y)( 4^{2} + 4y + y^{2}) \\
= (4 - y)( 16 + 4y + y^{2})$

-----

Answer: $(4 - y)( 16 + 4y + y^{2})$

8 0

3 years ago