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2 years ago

The width of a rectangle is 5x -5.5 feet and the length is 5.5x + 10 feet. Find the perimeter of the

2 answers:

7 0

21x+9ft, since x has no value that I know of. Otherwise sub that number in for x and complete the equation.

Explanation: it’s a rectangle so the width and length are the same so just multiple the width and length by themselves add all like terms (x’s and numbers) you’ll get the answer.

saul85 [17]2 years ago

4 0

Answer:

130ft

Step-by-step explanation:

5x -5.5 = -27.5

5x -5.5 = 27.5 + 10 = 37.5

27.5 x 2 = 55

27.5 + 10 = 37.5 x 2 = 75

55 + 75 = 130 ft

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A battery company produces 12,000 batteries per day. Each day they randomly select 50 to test. If they find that 1 is dead, how

alexgriva [62]

Using the binomial distribution, it is found that they would expect to find 240 dead batteries among the entire 12,000.

For each battery, there are only two possible outcomes, either it was dead or it was not. The probability of a battery being dead is independent of any other battery, hence the binomial distribution is used to solve this question.

<h3>What is the binomial probability distribution?</h3>

It is the <u>probability of exactly x successes on n repeated trials, with p probability</u> of a success on each trial.

The expected value of the binomial distribution is:

E(X) = np

In this problem, we have that:

One in 50 batteries are dead, hence p = 1/50 = 0.02.

There is a total of 12,000 batteries, hence n = 12000.

Then:

E(X) = np = 12000(0.2) = 240

They would expect to find 240 dead batteries among the entire 12,000.

You can learn more about the binomial distribution at brainly.com/question/24863377

5 0

2 years ago

Please help meeeeeeeeeeeeeee

never [62]

Answer: B and C

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Write an equation in slope - intercept form for the line that satisfies each set of conditions

ivanzaharov [21]

Answer:

see explanation

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

(1)

Rearrange 3x + 2y = 1 into this form by subtracting 3x from both sides

2y = - 3x + 1 ( divide all terms by 2 )

y = - $\frac{3}{2}$ x + $\frac{1}{2}$ ← in slope- intercept form

with slope m = - $\frac{3}{2}$

Parallel lines have equal slopes, thus

y = - $\frac{3}{2}$ x + c ← is the partial equation

To find c substitute (- 6, 15) into the partial equation

15 = 9 + c ⇒ c = 15 - 9 = 6

y = - $\frac{3}{2}$ x + 6 ← equation of line

(2)

Rearrange x + 2y = 8 into slope- intercept form by subtracting x from both sides

2y = - x + 8 ( divide all terms by 2 )

y = - $\frac{1}{2}$ x + 4 ← in slope- intercept form

with slope m = - $\frac{1}{2}$

Given a line with slope m then the slope of a line perpendicular to it is

$m_{perpendicular}$ = - $\frac{1}{m}$ = - $\frac{1}{-\frac{1}{2} }$ = 2, thus

y = 2x + c ← is the partial equation

To find c substitute (5, - 2) into the partial equation

- 2 = 10 + c ⇒ c = - 2 - 10 = - 12

y = 2x - 12 ← equation of line

3 0

2 years ago

Read 2 more answers

Stephanie earned 8 points for every book she read over the summer. The equation y = 8x represents Stephanie's points based on th

7nadin3 [17]

Answer: multiply 8 on all x number of books read

Step-by-step explanation:

1 is 8 because 8 × 1 is 8

2 is 16 because 8 × 2 is 16

3 is 24 because 8 × 3 is 24

4 is 32 because 8 × 4 is 32

5 is 40 because 8 × 5 is 40

6 is 48 because 8 × 6 is 48

7 is 56 because 8 × 7 is 56

8 is 64 because 8 × 8 is 64

9 is 72 because 8 × 9 is 72

10 is 80 because 8 × 10 is 80

8 0

3 years ago

Paul is building a bridge for a school project and wants to make a right triangle out of three popsicle sticks that measure 8 cm

STatiana [176]

Answer:

No he can't

Step-by-step explanation:

8² = 64

10² = 100

8² + 10² = 164

18² = 324

For a right triangle A²+B²=C²

4 0

2 years ago