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olganol [36]
3 years ago
10

The right rectangular pyramid shown below has a square base. What shape is the cross section?

Mathematics
1 answer:
goblinko [34]3 years ago
8 0
The cross section is a trapezoid.
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A tire manufacturer knows that 5% of tires contain a defect, and the presence of a defect is independent from tire to tire.
saul85 [17]

The probability that if 5 tires are inspected, exactly 2 have a defect is 0.021

<h3>How to calculate the probability</h3>

The given parameters are:

p = 5\% --- the proportion that contains defect

n =5 --- the sample size

r =2 -- the selected sample

The probability is then calculated as:

P(x =r) = ^nC_r * p^r * (1 - p)^{n-r}

So, we have:

P(x =2) = ^5C_2 * (5\%)^2 * (1 - 5\%)^{5-2}

P(x =2) = 10 * (5\%)^2 * (1 - 5\%)^3

P(x =2) = 0.021

Hence, the probability that if 5 tires are inspected, exactly 2 have a defect is 0.021

Read more about probabilities at:

brainly.com/question/15246027

5 0
2 years ago
Read 2 more answers
Find a degree 3 polynomial having zeros -8, 1 and 8 and the coefficient of x^3 equal 1
AlexFokin [52]
"zeros" are solutions for x that make the equation equal to zero.

(x - 8)(x + 8)(x - 1) = 0
8 0
3 years ago
How can you calculate the circumference if you know the circle’s radius? Write a formula please.
Alika [10]
C=2πR
C equals the <span>circumference of the circle, while π is 3.14 and R is the radius. them multiply that by 2

</span>
8 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=%28%5Csqrt%7B20%7D%20-%202%5Csqrt%7B45%7D%20%2B%5Csqrt%7B5%7D%20%29%2A%5Csqrt%7B5%7D" id="TexF
nataly862011 [7]

Answer:

<h2><em><u>-15</u></em></h2>

Step-by-step explanation:

(\sqrt{20} - 2\sqrt{45} +\sqrt{5} )*\sqrt{5}

=  \sqrt{20}  \times  \sqrt{5}  - 2 \sqrt{45}  \times  \sqrt{5}  +  \sqrt{5}  \times  \sqrt{5}

=  \sqrt{100}  - 2 \sqrt{225}  +  \sqrt{25}

= 10 - 2 × 15 + 5

= 10 - 30 + 5

= 15 - 30

=<em><u> -15 (Ans)</u></em>

7 0
3 years ago
Which graph best represents the equation created when the slope of y = 6x is changed to 0?
luda_lava [24]

The graph with an equation y = 6x has a slope of 6. If the slope is changed to 0, the equation becomes y = 0.

<h3>What is a linear function?</h3>

A linear function is in the form:

y = mx + b

Where m is the slope (rate of change) and b is the y intercept

The graph with an equation y = 6x has a slope of 6. If the slope is changed to 0, the equation becomes y = 0.

Find out more on linear function at: brainly.com/question/4025726

5 0
2 years ago
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