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2 years ago

PLS HELP! What is the value of x in the figure? Enter your answer in the box. x =

Mathematics

2 answers:

Lelu [443]2 years ago

8 0

Answer:

x=29 degrees

Step-by-step explanation:

Both angles shown ad up to a 90 degree angle. We can see this because on the adjacent side there is a box indicating that it is a right angle. The three angles add up to 180, thus if we subtract 90 degrees due to the angle on the left of the y axis, the angles on the right of the y axis must add up to 90 as well.

Since the angles on the right must add up to 90, we set an equation to solve for x:

61+x=90(subtract 61)

x=29 degrees

Veronika [31]2 years ago

3 0

We need to do 90-61, which is 29. X = 29, because the base of 61 and the right of the x is equal to a right angle.

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Evaluate the following expressions, and justify your answers.<br> WhatPower7(49)

MaRussiya [10]

Answer:

whatpower7(49) = 2

Step-by-step explanation:

given data

WhatPower7(49)

to find out

Evaluate the expressions WhatPower7(49)

solution

as we know that whatpower mean exponent of equation so we get by given equation

we know whatpower7(49) = 2

because

we know that 7 × 7 = 49

so that 7² = 49

so that the exponent is here 2 for 7 that become 49

so correct answer is 2

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3 years ago

A group of 105 visitors goes on the snow vehicle tour. Each vehicle can carry 9 visitors. How many snow vehicles will be needed

sergejj [24]

Answer:

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3 years ago

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3 years ago

The state education commission wants to estimate the fraction of tenth grade students that have reading skills at or below the e

Viefleur [7K]

Answer:

The 95% confidence interval for the population proportion of tenth graders reading at or below the eighth grade level is (0.2087, 0.2507).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

For this problem, we have that:

Suppose a sample of 1537 tenth graders is drawn. Of the students sampled, 1184 read above the eighth grade level. So 1537 - 1184 = 353 read at or below this level. Then

$n = 1537, \pi = \frac{353}{1537} = 0.2297$