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3 years ago

HELP MATH QUESTION PRE CAL

Mathematics

1 answer:

Zarrin [17]3 years ago

8 0

Use the pythagorean theorem. It would be set up as
a^2 + 3.7^2 = 4.0^2

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Eight hundred registered voters were asked whether they would vote yes or no on a certain measure. If 38% of those polled said y

Ivan

100%-38%= 62%
To find the decimal of 62%, we will have to divide 62 by 100 to get 0.62.

0.62(800)= 496.

Therefore, 496 people will vote no.

Hope this helps!

6 0

3 years ago

Read 2 more answers

I NEED THIS ANSWER ASAP(1000-???)=487

lakkis [162]

Answer:

The answer is 513

Step-by-step explanation:

To get this answer you can subtract 487 from 1000 and then put the answer in the missing place!

-Hope this helps-

Bai~

5 0

3 years ago

Read 2 more answers

A study shows that 20% of college students pray daily in their own religious beliefs. In a group of 300 college students, find t

svetlana [45]

Answer:

0.2805

Step-by-step explanation:

Given that p = 20% = 0.2, n = 300.

The mean (μ) = np = 0.2 * 300 = 60

The standard deviation (σ) = $\sqrt{np(1-p)}=\sqrt{300*0.2(1-0.2)}=6.93$

The z score is used to determine by how many standard deviations the raw score is above or below the mean. The z score is given by:

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

For x = 57:

$z=\frac{57-60}{6.93 } =-0.43$

For x = 62:

$z=\frac{62-60}{6.93 } =0.29$

From the normal distribution table, P(57 < x < 62) = P(-0.43 < z < 0.29) = P(z < 0.29) - P(z < -0.43) = 0.6141 - 0.3336 = 0.2805

5 0

3 years ago

True or False: According to the Order of Operations, exponents are applied before the expression in parentheses, and addition

faust18 [17]

False because parentheses go first.... just follow PEMDAS

8 0

3 years ago

What is the distance between the points 3, 7 and 15, 6 on a coordinate plane

krok68 [10]

Answer:

$D=\sqrt{145 }\\$

Step-by-step explanation:

We are actually using Pythagorean theorem here but to be simple

we can use the equation:

D(distance)= $\sqrt{(x_{1}- x_{2} )^{2} +( y_{1}-y_{2})^{2}}$

$D=\sqrt{(15-3)^{2}+(6-7)^{2} } =\\D=\sqrt{(12)^{2}+(-1)^{2} } =\\\\D=\sqrt{144+1 } =\\D=\sqrt{145 }\\$

(If you meant 16 instead of 6 the answer would be 15)

Hope this helps!

8 0

3 years ago