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3 years ago

What is the perimeter of a rectangle with sides 7 inches and 10 inches?

Mathematics

2 answers:

lana66690 [7]3 years ago

5 0

Answer:

Step-by-step explanation:

P= 2×( l + w)

P= 2×(10+7)

P= 2×17

P= 34

Serjik [45]3 years ago

3 0

7+7=14+10+10=34
So it’s 34 inches.

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125 centimeters to 87.5 cenitimeters

Artemon [7]

Answer:

Step-by-step explanation:

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2 years ago

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The average score of all pro golfers for a particular course has a mean of 70 and a standard deviation of 3.0 (Think of these as

bija089 [108]

Answer:

0.477 is the probability that the average score of the 36 golfers was between 70 and 71.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 70

Standard Deviation, σ = 3

Sample size, n = 36

Let the average score of all pro golfers follow a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

P(score of the 36 golfers was between 70 and 71)

$\text{Standard error of sampling} = \displaystyle\frac{\sigma}{\sqrt{n}} = \frac{3}{\sqrt{36}} = \frac{1}{2}$

$P(70 \leq x \leq 71) = P(\displaystyle\frac{70 - 70}{\frac{3}{\sqrt{36}}} \leq z \leq \displaystyle\frac{71-70}{\frac{3}{\sqrt{36}}}) = P(0 \leq z \leq 2)\\\\= P(z \leq 2) - P(z \leq 0)\\= 0.977 - 0.500 = 0.477= 47.7\%$

$P(70 \leq x \leq 71) = 47.7\%$

0.477 is the probability that the average score of the 36 golfers was between 70 and 71.

8 0

3 years ago

What is the value of 2 thirds + 3 fourths

inn [45]

Step-by-step explanation:

⅔ + ¾

→ make the denominator equal of both the fraction

= 2/3 × 4/4 = 8/12

= 3/4 × 3/3 = 9/12

hence,

8/12 + 9/12

= 8 + 9/12 = 17/12

$\frac{17}{12} or \: 1 \frac{5}{12}$

hope this answer helps you dear...take care

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2 years ago

What is the volume of a sphere with a surface area of 196 π ft2 ? Question 12 options: 1372/ 3 π ft3 457/ 3 π ft3 226/ 3 π ft3 4

dsp73

Answer:

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Step-by-step explanation:

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2 years ago

A boy's mother was 32 years old when he was born. Let a represent the boy's age and m represent the mother's age.

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