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1 month ago

Mike is installing weatherstripping around a window that measures 3.5 ft x 4.5 ft. How much weatherstripping will he need?

Mathematics

2 answers:

tester [12.3K]1 month ago

7 0

Answer:

$16\ ft$

Detailed explanation:

To determine the amount of weatherstripping required, calculate the window's perimeter

thus

The perimeter of a rectangle is determined by

$P=2(b+h)$

we find that

$b=3.5\ ft, h=4.5\ ft$

inputting the values into the formula

$P=2(3.5+4.5)=16\ ft$

Leona [12.6K]1 month ago

3 0

3.5 * 2 + 4.5 * 2 = 16

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Sixty percent of all vehicles examined at a certain emissions inspection station pass the inspection. Assuming that successive v

AnnZ [12381]

Answer:

a) 0.216

b) 0.784

c) 0.288

d) 0.352

e) 0.784

Step-by-step explanation:

The steps for solving this are provided in an image.

8 0

2 months ago

A high school theater club has 40 students, of whom 6 are left-handed. Two students from the club will be selected at random, on

babunello [11817]

Response:

$1.92\%$

Detailed explanation:

Probability for an event is calculated as the ratio of the size of the event space compared to that of the sample space.

The sample space encompasses all possible outcomes.

Event space represents the number of favorable outcomes for the event in question.

Thus

Let

x ------> size of event space

y ----- → size of sample space

$P=\frac{x}{y}$

Calculate the probability of the first student being left-handed

we have

$x=6$

$y=40$

substituting values

$P=\frac{6}{40}$

Simplify

$P=\frac{3}{20}$

Calculate the probability of the second student being left-handed

we have

$x=6-1=5$

$y=40-1=39$

substituting values

$P=\frac{5}{39}$

Calculate the probability that both selected students will be left-handed

Multiply the probabilities together.

$P=\frac{3}{20}(\frac{5}{39})=\frac{15}{780}$

Convert to percentage

Multiply by 100

$\frac{15}{780}(100)=1.92\%$

4 0

3 months ago

Four hot air balloons each descend 295 feet per minute for 7 minutes. Find the total change in altitude for all 4 balloon

Svet_ta [12734]

Answer: A total descent of 8260 feet occurred for all four balloons.

Step-by-step explanation:

Based on the information provided:

Number of hot air balloons = 4

Minutes of descent = 7

Descent rate per minute = 295 feet

Thus, the overall change in altitude for all four balloons can be calculated as:

$295\times 7\times 4\\\\=8260\ feet$

Thus, a total descent of 8260 feet was experienced by the four balloons.

7 0

2 months ago

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