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Artyom0805 [142]
3 years ago
15

I need help on finding the measure of each angle on a rectangle

Mathematics
1 answer:
iVinArrow [24]3 years ago
7 0

Answer:

1  65

2 65

3 25

4 25

5 50

6 130

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Which statement best describes the effect on the graph of y = (x – 9)2 if the equation is changed to y = (x + 9)2? The graph mov
alexandr402 [8]

Answer:

Third option: The graph moves left 18 units.

Step-by-step explanation:

Some transformations for a function f(x) are shown below:

If f(x)+k, the function is shifted up "k" units.

If f(x)-k, the function is shifted down "k" units.

If f(x+k), the function is shifted left "k" units.

If f(x-k), the function is shifted right "k" units.

In this case, we can observe that graph of y = (x - 9)^2 is changed to y = (x + 9)^2

Since:

 -9+18=9

We can conclude that the function y = (x - 9)^2 is shifted left 18 units to get the function y = (x + 9)^2.

3 0
3 years ago
Read 2 more answers
The heights of a certain population of corn plants follow a normal distribution with mean 145 cm and stan- dard deviation 22 cm
Firdavs [7]

Answer with explanation:

Given : The heights of a certain population of corn plants follow a normal distribution with mean \mu=145\ cm and standard deviation \sigma=22\ cm

a) Using formula z=\dfrac{x-\mu}{\sigma}, the z-value corresponds to x= 135 will be

z=\dfrac{135-145}{22}\approx-0.45

At x= 155, z=\dfrac{155-145}{22}\approx0.45

The probability that plants are between 135 and 155 cm tall :-

P(-0.45

Hence, 34.73% of the plants are between 135 and 155 cm tall.

b) Sample size : n= 16

Using formula z=\dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}, the z-value corresponds to x= 135 will be

z=\dfrac{135-145}{22}{\sqrt{16}}\approx-1.82

At x= 155, z=\dfrac{155-145}{22}{\sqrt{16}}\approx1.82

The probability that plants are between 135 and 155 cm tall :-

P(-1.82

Hence,The percentage of the samples would the sample mean height be between 135 and 155 cm.= 93.12%  

4 0
4 years ago
Select the correct answer.
Nuetrik [128]

The answer that would best tell the combination of shapes that could make a piano are: 3 cylinders and a rectangular prism

<h3>How to find the shape of a piano</h3>

The shape of a piano can be gotten from the way that the piano is built. A piano is known to have a shape that is like a chord, it also has the parts that is built like a rectangular prism.

In order to get the volume of the object, the different shapes that it has would be calculated individually using their formula.

Read more on volume

brainly.com/question/1972490

#spj1

3 0
2 years ago
Read 2 more answers
The weather forecast for the day shows a 45% chance of
SOVA2 [1]

Answer:

C

Step-by-step explanation:

If two events are independent, the probability of both happening are:

P(A and B) = P(A) × P(B)

In this case, if rain and lightening were independent:

P(rain and lightening) = P(rain) × P(lightening)

P(rain and lightening) = 0.45 × 0.45

P(rain and lightening) = 0.2025

However, we're told that P(rain and lightening) is 0.25, not 0.2025.

Since 0.2025 ≠ 0.25, the events are not independent, so they are dependent.

4 0
3 years ago
A sample of 80 high school seniors,45% were are female were surveyed as to wheather or not they are employed outside of school ,
Nataliya [291]
The first thing we must do for this case is find the number of boys surveyed.
 We have then:
 (1-0.45) * (80) = 44
 We are now looking for the number of boys employed.
 We have then:
 (1-0.25) * (44) = 33
 Answer:
 
there are 33 boys employed.
4 0
4 years ago
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