All categories

2 years ago

The measure of an angle is 39°. What is the measure of its complementary angle?

Mathematics

2 answers:

Sedaia [141]2 years ago

5 0

Answer:

51°

Step-by-step explanation:

<em>Complementary angles add to 90°.</em>

<u>If one of them is 39°, then the other is:</u>

90° - 39° = 51°

Novosadov [1.4K]2 years ago

3 0

Answer:

51 degrees

Step-by-step explanation:

Complementary angles are two angles whose sum is (90degrees). If one is given an angle measure and needs to find its complementary angle, then all one has to do is subtract the given angle measure from (90degrees).

90 - 39 = 51

You might be interested in

Please help this is urgent I will be giving brainlyest to the first and correct answer!!!!! This question will be worth a lot of

Kamila [148]

Answer:

Step-by-step explanation:

Hope this helped (:

8 0

3 years ago

Pam likes to practice dancing while preparing for a math tournament. She spends 80 minutes every day practicing dance and math.

Misha Larkins [42]

110 because when you basically spend most of your time in math you become a math genius and then you whole family is proud of you thank you

8 0

3 years ago

Read 2 more answers

Charlie is at a small air field watching for the approach of a small plane with engine trouble. He sees the plane at an angle of

lubasha [3.4K]

(32°) = 1700 feet / x => x = 1700 feet / tan(32°) = 1700 feet / 0.625 = 2720 feet.

6 0

3 years ago

A marketing firm is considering making up to three new hires. Given its specific needs, the management feels that there is a 50%

IRISSAK [1]

Answer:

a) 0.9

b) Mean = 1.58

Standard Deviation = 0.89

Step-by-step explanation:

We are given the following in the question:

A marketing firm is considering making up to three new hires.

Let X be the variable describing the number of hiring in the company.

Thus, x can take values 0,1 ,2 and 3.

$P(x\geq 2) = 50\%= 0.5\\P(x = 0) = 10\% = 0.1\\P(x = 3) = 18\% = 0.18$

a) P(firm will make at least one hire)

$P(x\geq 2) = P(x=2) + P(x=3)\\0.5 = P(x=2) + 0.18\\ P(x=2) = 0.32$

Also,

$P(x= 0) +P(x= 1) + P(x= 2) + P(x= 3) = 1\\ 0.1 + P(x= 1) + 0.32 + 0.18 = 1\\ P(x= 1) = 1- (0.1+0.32+0.18) = 0.4$

$\text{P(firm will make at least one hire)}\\= P(x\geq 1)\\=P(x=1) + P(x=2) + P(x=3)\\ = 0.4 + 0.32 + 0.18 = 0.9$

b) expected value and the standard deviation of the number of hires.

$E(X) = \displaystyle\sum x_iP(x_i)\\=0(0.1) + 1(0.4) + 2(0.32)+3(0.18) = 1.58$

$E(x^2) = \displaystyle\sum x_i^2P(x_i)\\=0(0.1) + 1(0.4) + 4(0.32) +9(0.18) = 3.3\\V(x) = E(x^2)-[E(x)]^2 = 3.3-(1.58)^2 = 0.80\\\text{Standard Deviation} = \sqrt{V(x)} = \sqrt{0.8036} = 0.89$

7 0

3 years ago

Please help! I will give brainliest

marishachu [46]

Step-by-step explanation:

Kim: 25

Stacy: t

Total: 57

Equation:

25+t=57

solve for t

t=57-32=32

Stacy made 32 necklaces

4 0

3 years ago

Read 2 more answers