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3 years ago

PLEASE ANSWER ILL MARK BRAINIEST

Mathematics

2 answers:

notka56 [123]3 years ago

6 0

D is the correct answer (square root of 65)

AnnZ [28]3 years ago

4 0

You can use Pythagorean theorem to solve this problem so: a^2+b^2=c^2. 16+49=c^2. c=65. The answer is number 4.

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(5-3) + (10+5) O A. 15+81 O B. 15+ 21 O C. -5+21 O D.-5+81 SUBN

nirvana33 [79]

The answer is C) -5+21

8 0

3 years ago

Can someone pls help! I’m desperate

tia_tia [17]

Answer:

The number of children tickets sold was 610.

Step-by-step explanation:

Let

x ----> the number of adults tickets sold

y ----> the number of children tickets sold

we know that

x+y=1710 -----> equation A

50x+25y=70250 ----> equation B

Solve the system by graphing

Remember that the solution is the intersection point both graphs

The solution is the point (1100,610)

therefore

The number of children tickets sold was 610.

4 0

3 years ago

Consider the quadratic equation x2 - 6x - 16 = 0. A. Solve the equation, and discuss how the type of roots affects the appearanc

Goryan [66]

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4 years ago

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Amiraneli [1.4K]

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7 0

3 years ago

Read 2 more answers

A market researcher for a provider of music player accessories wants to know the proportion of customers who own cars to assess

AVprozaik [17]

Answer:

a) The estimated standard deviation of the sampling distribution of the proportion is 0.023

b) the estimated standard deviation have been if he had surveyed only 100 customers is 0.046

Step-by-step explanation:

given information:

the number of sample, n = 400

sample proportion, p = 70% = 0.7

a) standard deviation of a sample proportion is

σ = $\sqrt{\frac{p(1-p)}{n}}$

= $\sqrt{\frac{0.7 (1-0.7)}{400} }$

= 0.023

b) if n = 100, so

σ = $\sqrt{\frac{p(1-p)}{n}}$

= $\sqrt{\frac{0.7 (1-0.7)}{100} }$

= 0.046

7 0

3 years ago