2 years ago

Question 21 Please help me

Mathematics

1 answer:

xeze [42]2 years ago

5 0

Answer:

Angle 7 = 65

Angle 6 = 115

Angle 1 = 115

Step-by-step explanation:

You might be interested in

Jason wants to fill a cylindrical water tank to its full capacity. He knows that the volume of the tank is equal to the product

almond37 [142]

Answer:

The answer is B ⇒ $\sqrt{\frac{V}{15\pi }}=10$

Step-by-step explanation:

∵ v = π r² h

∴ r² = $\frac{V}{\pi h }$

∴ r = $\sqrt{\frac{V}{\pi h}}$

∵ r = 10 ft and h = 15 ft

∴ $10=\sqrt{\frac{V}{15\pi } }$

4 0

2 years ago

Read 2 more answers

The average time an individual reads online national news reports is 49 minutes. Assume the standard deviation is 16 minutes and

Olin [163]

Answer:

0.118 is the probability someone will spend no more than 30 minutes reading online national news reports.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 49 minutes

Standard Deviation, σ = 16 minutes

We are given that the distribution of time an individual reads is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

P(no more than 30 minutes)

$P( x \leq 610) = P( z \leq \displaystyle\frac{30 - 49}{16}) = P(z \leq -1.1875)$

Calculation the value from standard normal z table, we have,

$P(x \leq 30) = 0.118 = 11.8\%$

0.118 is the probability someone will spend no more than 30 minutes reading online national news reports.

3 0

2 years ago

Employee Earnings per

Nadya [2.5K]

Answer:

actually its depend on how is he working day by day

4 0

2 years ago

Christy purchased an art easel at a garage sale for $30. She later sold the easel on Craigslist for $45. What was the percent in

Zielflug [23.3K]

The percent increase by 15%

4 0

2 years ago

Read 2 more answers

Find the value of x.<br> x = [?]

Nikolay [14]

Answer:

Step-by-step explanation:

x=7-9

5 0

2 years ago