9x5000=9xhow many thousands

The neighborhood library is organizing a summer book giveaway for the neighborhood children. A local business donated 90 picture

Inessa [10]

They should get 2 each cause 2 goes into 90 and 72 so 2 is your answer

6 0

3 years ago

Daryl measures the angle of elevation to be 62 degrees. Frances measures the angle of elevation to be 54 degrees. if the two ent

Leya [2.2K]

Answer:

The helicopter is 27.38 m far off the ground

Step-by-step explanation:

The drawing shown in the image below has all the measures and variables needed to solve the problem.

We need to find R, the height of the helicopter. We'll use the law of sines to find the length of side a.

$\displaystyle \frac{28}{\sin X}=\frac{a}{\sin 54^\circ}$

The angle X is the measure needed to complete 180°:

X = 180° - 54° - 62° = 64°

Solving for a:

$\displaystyle a=\frac{28}{\sin 64^\circ}\cdot \sin 54^\circ$

Calculating:

a = 31.11 m

Now using the sine ratio in the right triangle to the left side:

$\displaystyle \sin 62^\circ=\frac{R}{a}$

Solving for R:

$R=a\sin 62^\circ$

R=31.11*0.88

R = 27.38 m

The helicopter is 27.38 m far off the ground

5 0

3 years ago

Asher please $156 every six weeks for piano lessons what is the price per year for piano lessons

Svet_ta [14]

You would first learn how many weeks there are in a year which is 52
So you would multiply 52x156
Which equals 8112
Asher pays $8112 per year for piano lessons

3 0

3 years ago

Directions: Post your answer to this question in your Unit 8: Journal 1.

aleksandrvk [35]

Answer:

Tan(∠A) is 4/3.

Step-by-step explanation:

To answer this question, we first need a basic understanding of sin, cos, and tan. The sin of an angle is the opposite over hypotenuse, the cos is adjacent over hypotenuse, and the tan is the opposite over adjancent.

Since sin(∠A) is 4/7, that makes 4 the opposite and 7 the hypotenuse.

Since cos(∠A) is 3/7, that makes 3 the adjacent the 7 the hypotenuse again.

So to get tan(∠A), we just have to put 4/3 since that is the opposite over the adjacent.

3 0

4 years ago

A ball is drawn at random from a box containing 12 red,18

Lubov Fominskaja [6]

Answer:

For a: The probability of getting a red or blue ball is 0.48

For b: The probability of getting a white, blue or orange ball is 0.81

For c: The probability of getting neither white or orange ball is 0.48

Step-by-step explanation:

Probability is defined as the extent to which an event is likely to occurs. It is measured by the ratio of the favorable outcomes to the total number of possible outcomes.

$\text{Probability}=\frac{\text{Number of favorable outcomes}}{\text{Total number of favorable outcomes}}$ .......(1)

We are given:

Number of red balls in a box = 12

Number of white balls in a box = 18

Number of blue balls in a box = 19

Number of orange balls in a box = 15

Total balls in a box = [12 + 18 + 19 + 15] = 64

For a:

Number of favorable outcomes (ball must be red or blue) = [12 + 19] = 31

Total number of outcomes = 64

Putting values in equation 1, we get:

$\text{Probability of getting a red or blue ball}=\frac{31}{64}=0.48$

For b:

Number of favorable outcomes (ball must be white or blue or orange) = [18 + 19 + 15] = 52

Total number of outcomes = 64

Putting values in equation 1, we get:

$\text{Probability of getting a white or blue or orange ball}=\frac{52}{64}=0.81$

For c:

Number of favorable outcomes (ball must be white or orange) = [18 + 15] = 33

Total number of outcomes = 64

Putting values in equation 1, we get:

$\text{Probability of getting a white or orange ball}=\frac{33}{64}=0.52$

Probability of getting a ball which is neither white or orange = [1 - (Probability of getting a white or orange ball)] = [1 - 0.52] = 0.48

7 0

3 years ago