3 years ago

What is the the frequency of the sinusoidal graph ??

Mathematics

1 answer:

ira [324]3 years ago

8 0

For e2020 the answer is C

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What is 22% of 45 what is 32.5% of 250

antoniya [11.8K]

Answer:

22%*45=

(22:100)*45 =

(22*45):100 =

990:100 = 9.9

32.5%*250=

(32.5:100)*250 =

(32.5*250):100 =

8125:100 = 81.25

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2 years ago

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20000 students took a standardized math test. The scores on the test are normally distributed, with a mean score of 85 and a sta

Tpy6a [65]

Answer: 2718

Step-by-step explanation:

Given: Mean score = 85

Standard deviation = 5

Let x be the score of a random student that follows normal distribution.

Then, the probability that a student scored between 90 and 95 will be

$P(90< x < 95)\\\\=P(\dfrac{90-85}{5}$

The number of students scored between 90 and 95 = 0.1359 x (Total students)

= 0.1359 (20000)

= 2718

Hence, The number of students scored between 90 and 95 = 2718

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3 years ago

Use integer values of x from -3 to 3 to graph the equation y = 1/3 [x] - 2

jekas [21]

Y=1/3[-3]-2 I think is the answer

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3 years ago

How long can the run be made?

defon

Answer:

$L=15\ m$

Step-by-step explanation:

we know that

The perimeter of rectangle is equal to

$P=2L+2W$

In this problem we have

$P=42\ m$

$W=6\ m$

substitute in the formula and solve for L

$42=2L+2(6)$

simplify

$21=L+(6)$

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3 years ago

What is 3*5/2 A.5/6 B.15/2 C.8/2 D.15/6

alina1380 [7]

Answer:

The correct answer to this question is B

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