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MrMuchimi
3 years ago
6

Help please!! which statements are true??

Mathematics
2 answers:
solniwko [45]3 years ago
5 0

Answer:

The answers are B. All rectangles are squares and C. All rectangles are parallelograms.

Step-by-step explanation:

Rectangles are squares, they're just shaped differently.

They are also parallelograms because the lines are parallel to each other.

True [87]3 years ago
4 0

Answer:

i don't know but if it we're me i'd pick the answer i think it is good luck though

Step-by-step explanation:

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Plz answer it what are the multiples for 345 and 567?
kobusy [5.1K]
1)1, 3, 5, 15, 23, 69, 115, 345
<span>2)1,3,7,9,21,27,63,81,189,567</span>

8 0
3 years ago
Wyatt’s eye-level height is 120 ft above sea level, and Shawn’s eye-level height is 270 ft above sea level. How much farther can
brilliants [131]
Using the formula given: d = <span>√(3h/2)

We simply substitute the given values of h into the equation and compare the results.

For Wyatt where h = 120:
d = </span>√(3(120)/2)<span>
d = 13.42 miles

</span><span>For Shawn where h = 270:
d = </span>√(3(270)/2)<span>
d = 20.12 miles
</span>
Since the question asks for how much farther can Shawn see, we subtract the results:

20.12 - 13.42 = 6.7

Therefore, Shawn can see 6.7 miles farther.
4 0
2 years ago
How much is a 10% tip on a $25 bill
s344n2d4d5 [400]

Answer:

$2.50.

Step-by-step explanation:

10 percent of 25 is 2.5.

3 0
3 years ago
Read 2 more answers
The University of Washington claims that it graduates 85% of its basketball players. An NCAA investigation about the graduation
Nonamiya [84]

Probabilities are used to determine the chances of events

The given parameters are:

  • Sample size: n = 20
  • Proportion: p = 85%

<h3>(a) What is the probability that 11 out of the 20 would graduate? </h3>

Using the binomial probability formula, we have:

P(X = x) = ^nC_x p^x(1 - p)^{n -x}

So, the equation becomes

P(x = 11) = ^{20}C_{11} \times (85\%)^{11} \times (1 - 85\%)^{20 -11}    

This gives

P(x = 11) = 167960 \times (0.85)^{11} \times 0.15^{9}

P(x = 11) = 0.0011

Express as percentage

P(x = 11) = 0.11\%

Hence, the probability that 11 out of the 20 would graduate is 0.11%

<h3>(b) To what extent do you think the university’s claim is true?</h3>

The probability 0.11% is less than 50%.

Hence, the extent that the university’s claim is true is very low

<h3>(c) What is the probability that all  20 would graduate? </h3>

Using the binomial probability formula, we have:

P(X = x) = ^nC_x p^x(1 - p)^{n -x}

So, the equation becomes

P(x = 20) = ^{20}C_{20} \times (85\%)^{20} \times (1 - 85\%)^{20 -20}    

This gives

P(x = 20) = 1 \times (0.85)^{20} \times (0.15\%)^0

P(x = 20) = 0.0388

Express as percentage

P(x = 20) = 3.88\%

Hence, the probability that all 20 would graduate is 3.88%

<h3>(d) The mean and the standard deviation</h3>

The mean is calculated as:

\mu = np

So, we have:

\mu = 20 \times 85\%

\mu = 17

The standard deviation is calculated as:

\sigma = np(1 - p)

So, we have:

\sigma = 20 \times 85\% \times (1 - 85\%)

\sigma = 20 \times 0.85 \times 0.15

\sigma = 2.55

Hence, the mean and the standard deviation are 17 and 2.55, respectively.

Read more about probabilities at:

brainly.com/question/15246027

8 0
2 years ago
Need help fast with this question fourty points and branliest!!
Colt1911 [192]

You can use SAS, or Side Angle Side. Because BC equals EC and AC equals DC, you can get two sides. Also, angle BCA and DCE have the same angle measurement, so you can conclude, using SAS, that BA equals to ED. Also, you can also prove that these two triangles are congruent and that all of the angles are the same as well because all of the side lengths are equal.


8 0
3 years ago
Read 2 more answers
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