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3 years ago

What percent of 75 is 46.5

Mathematics

2 answers:

kupik [55]3 years ago

7 0

3487.5/75
Divide 3487.5 by 75 and you get 46.5!!

m_a_m_a [10]3 years ago

4 0

If you would like to know what percent of 75 is 46.5, you can calculate this using the following steps:

x% of 75 is 46.5
x% * 75 = 46.5
x/100 * 75 = 46.5 /*100/75
x = 46.5 * 100 / 75
x = 62%

Result: 62% of 75 is 46.5.

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pshichka [43]

Answer:

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Step-by-step explanation:

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4 years ago

If tanx-cotx=5 then what is the value of tan²x+cot²x

Roman55 [17]

Answer:

Step-by-step explanation:

note that tanx cotx = tanx × $\frac{1}{tanx}$ = 1

Given

tanx - cotx = 5 ( square both sides )

(tanx - cotx)² = 5² = 25 ← expand left side using FOIL

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3 years ago

A college-entrance exam is designed so that scores are normally distributed with a mean of 500 and a standard deviation of 100.

yawa3891 [41]

Answer:

The probability is 0.003

Step-by-step explanation:

We know that the average $\mu$ is:

$\mu=500$

The standard deviation $\sigma$ is:

$\sigma=100$

The Z-score is:

$Z=\frac{x-\mu}{\sigma}$

We seek to find

$P(x800)$

For P(x>800) The Z-score is:

$Z=\frac{x-\mu}{\sigma}$

$Z=\frac{800-500}{100}$

$Z=3$

The score of Z = 3 means that 800 is 3 standard deviations from the mean. Then by the rule of the 8 parts of the normal curve, the area that satisfies the conficion of 3 deviations from the mean has percentage of 0.15%

$P(x>800)=0.15\%$

For P(x<200) The Z-score is:

$Z=\frac{x-\mu}{\sigma}$

$Z=\frac{200-500}{100}$

$Z=-3$

The score of Z = -3 means that 200 is 3 standard deviations from the mean. Then by the rule of the 8 parts of the normal curve, the area that satisfies the conficion of 3 deviations from the mean has percentage of 0.15%

$P(x$