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3 years ago

What is 5 less than the product of 5 and a number is 22 written out in an equation?

Mathematics

1 answer:

masha68 [24]3 years ago

6 0

5y - 5= 22
or
5(y)-5=22

Hope that helps!

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A major department store chain is interested in estimating the mean amount its credit card customers spent on their first visit

sergiy2304 [10]

Answer:

95% Confidence interval: (39.43, 61.58)

Step-by-step explanation:

We are given the following in the question:

Sample mean, $\bar{x}$ = $50.50

Sample size, n = 15

Alpha, α = 0.05

Sample standard deviation = 20

95% Confidence interval:

$\bar{x} \pm t_{critical}\displaystyle\frac{s}{\sqrt{n}}$

Putting the values, we get,

$t_{critical}\text{ at degree of freedom 14 and}~\alpha_{0.05} = \pm 2.1447$

$=50.50 \pm 2.1447(\dfrac{20}{\sqrt{15}} ) \\\\= 50.50 \pm 11.0751 \\= (39.4249,61.5751)\\\approx (39.43, 61.58)$

95% Confidence interval: (39.43, 61.58)

8 0

3 years ago

There are 12 more apples than oranges in the basket of 36 apples and oranges. How

anygoal [31]

Step-by-step explanation:

<h3><u>Required Answer</u><u>:</u><u>-</u></h3>

Total number of fruits=36

Let

the number of oranges =x

The number of apples=x+12

${:}\leadsto$ $\sf x+x+12=36$

${:}\leadsto$ $\sf 2x+12=36$

${:}\leadsto$ $\sf 2x=36-12$

${:}\leadsto$ $\sf 2x=24$

${:}\leadsto$ $\sf x={\dfrac {24}{2}}$

${:}\leadsto$ $\sf x=12$

Number of Apples =12+12=24

7 0

3 years ago

Read 2 more answers

Always sometimes never: one angle in a triangle is more than 90°

olga2289 [7]

Answer:

sometimes

Step-by-step explanation:

it can be only possible in case of obtuse triangle.

4 0

3 years ago

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A cylinders volume can be calculated by the formula V=pir^2h, where V stands for volume and R for the base radius and H for the

zvonat [6]

Answer:

This cylinders volume, in terms of pi, is 144π m³

This cylinders volume, rounded to the hundredth place, is 452.39 m³

Step-by-step explanation:

volume of cylinder:

→ πr²h

→ π(4)²(9)

→ 144π

→ 452.39 m³ ......rounded to nearest hundredth

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3 years ago

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The longest leg of a right triangle is 30 feet and another side is 20 feet. Find the perimeter of the triangle. Round to the nea

abruzzese [7]

Answer: 72.4 ft

Step-by-step explanation: A2+B2=C2 20squared plus Bsquared=30 22.4 squared plus 20squared equals 30squared and when you add all that together you get 72.4 ft

7 0

3 years ago