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3 years ago

Solve the equations and match them with their solutions.

Mathematics

1 answer:

Artyom0805 [142]3 years ago

7 0

1 is x=13.5

2 is x=-260

3 is x=38

4 is x=-37^38

i think this is correct

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Question in the picture

Ket [755]

Answer:

<h2><u><em>nonagon, 9 sides</em></u></h2>

Step-by-step explanation:

the interior angles is 360 - 220 = 140°

it's a<u><em> nonagon, 9 sides</em></u>

3 0

2 years ago

Pete, a professional bowler, is unhappy with any game below 200. Over time, 80% of his games exceed this score. What is the prob

Aneli [31]

The probability that Pete exceeds 200 in at least 9 of his next 10 games is 0.268+0.1074 = 0.3754

<h3>What is Probability ?</h3>

Probability is defined as the likeliness of an event to happen.

It has a range of 0 to 1.

It is given that

Pete, a professional bowler, is unhappy with any game below 200

80% of his games exceed this score.

the probability that Pete exceeds 200 in at least 9 of his next 10 games is given by

P( 9/10 > 200) +P(10/10>200)

The binomial experiment consists of n trial out of it x is success.

$P( x) = \dfrac{n!}{x!(n-x)!}p^x(1-p)^{n-x}$

Here p = 0.8

For 9/10 matches

$P( 9/10 > 200) = \dfrac{10!}{9!(10-9)!}0.8^9(1-0.8)^{10-9}\\\\ = {10}(0.8)^9(0.2)\\= 0.268$

For (10/10 >200)

$P( 10/10 > 200) = \dfrac{10!}{10!(10-10)!}0.8^{10} (1-0.8)^{10-10}\\\\ = {1!}(0.8)^{10}\\= 0.1074$

Therefore the probability that Pete exceeds 200 in at least 9 of his next 10 games is 0.268+0.1074 = 0.3754.

To know more about Probability

brainly.com/question/11234923

#SPJ1

5 0

2 years ago

What is the volume of a rectangular prism 15/4 8/3 6/5

Sonbull [250]

the volume is 69/21

Step-by-step explanation:

5 0

3 years ago

Combine like terms to simplify the expression: 2a+3b-4c-b+2a+2c

Ulleksa [173]

Hey there! I'm happy to help!

First let's combine all of the terms with a.

2a+2a=4a

Now the ones with b.

3b-b=2b

And the ones with c.

-4c+2c=-2c

So, our simplified expression is 4a+2b-2c.

Have a wonderful day! :D

8 0

3 years ago

Find the area of the shaded region if the dimensions of the unshaded region are 20ft x 35ft.

fgiga [73]

<u>Answer:</u>

The correct answer option is A. 1397.46 ft^2.

<u>Step-by-step explanation:</u>

We are to find the area of the shaded region. For that, we will divide the figure into smaller shapes, find their areas separately and then add them up.

From the given figure, we can see that there are two semi circles )or say one whole circle if we combine them) at the ends while 2 rectangles at the top and bottom.

Radius of circle = $\frac{20+7+7}{2}$ = 17

Area of circle = $\pi r^2 = \pi \times 17^2$ = 907.92 square ft

Area of rectangles = $2(l \times w) = 2(35 \times 7)$ = 490 square ft

Area of shaded region = 907.9 + 490 = 1397.46 ft^2

7 0

3 years ago