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3 years ago

What is the answer to this question

Mathematics

1 answer:

SVETLANKA909090 [29]3 years ago

4 0

120 people. Because 40% of everyone wanted to build one. So 40% of 200 is 80 and 200-80=120

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The floor plan shows a length of 12 inches and a width of 8 inches. The scale is 1 inch: 10

Lapatulllka [165]

Answer:

length: 120 feet

width: 80 feet

area: 9600 feet^2

Step-by-step explanation:

since the scale is 1 inch:10 feet:

to find the actual length, we would multiply 12 by 10, since 1 inch would be 10 feet and the length in the floor plan is 12 inches:

length = 12*10=120

the length of the actual room is 120 feet.

to find the actual width, we would multiply 8 by 10, for the same reasons i explained for the length:

width = 8*10=80

the width of the actual room is 80 feet.

to find the area, we would multiply length by the width:

80*120=9600 square feet.

5 0

3 years ago

Read 2 more answers

. >,<, = 6 × 10^−3 5 × 10^−3 Please help will mark brainly.

Wittaler [7]

Answer:

6*10^-3 > 5*10^-3

Step-by-step explanation:

$6*10^{-3}\\6*\frac{1}{10^{3} }\\6*\frac{1}{1000}\\\frac{6}{1000}=\frac{3}{500}=0.006$

$5*10^{-3}\\5*\frac{1}{10^{3} }\\5*\frac{1}{1000}\\\frac{5}{1000}=\frac{1}{200}=0.005$

0.006>0.005, therefore, 6*10^-3>5*10^-3

3 0

3 years ago

A group of campers uses a map of a state park to plan their trip to and from the campsite. The map looks like a grid in which ea

stealth61 [152]

Hi,

Departure point : (4, 5)
They are first heading west, to go to the (2,5). They made 2 km.
Then they are heading north, to go to (2,8) -> campsite. They made 3 km

To return to departure point, the make the choice to walk in straight line :

$d = \sqrt{(4 - 2)^{2} + (5 - 8)^{2}} \\ \\ d = \sqrt{4 + 9} \\ \\ d = \sqrt{13} \\ \\d \approx 3.60\;km$

In total : they walked : 2 + 3 + 3.60 = 8.60 km

4 0

3 years ago

A pizza place recently hired additional drivers and as a result now claims that its average delivery time for orders is under 44

Burka [1]

Answer:

Yes, this sample provide enough evidence to support the delivery time claim made by the pizza place.

Step-by-step explanation:

We are given that a pizza place recently hired additional drivers and as a result now claims that its average delivery time for orders is under 44 minutes.

A sample of 39 customer deliveries was examined, and the average delivery time was found to be 40.5 minutes. Historically, the standard deviation for delivery time is 11.3 minutes.

From this, X bar = 40.5 , $\sigma$ = 11.3 , $\mu$ = 44 and sample, n = 39

Null Hypothesis, $H_0$ : $\mu$ >= 44

Alternate Hypothesis, $H_1$ : $\mu$ < 44

The test statistics used here will be;

T.S. = $\frac{Xbar-\mu}{\frac{\sigma}{\sqrt{n} } }$ ~ N(0,1)

So, Test statistics = $\frac{40.5-44}{\frac{11.3}{\sqrt{39} } }$ = -1.93

Now, at 5% significance level the z score table gives critical value of -1.6449 as it is one-tail test.

<em>Since our test statistics is less than the critical value as -1.93 < -1.6449, so we have sufficient evidence to reject null hypothesis and conclude that the average delivery time for orders is under 44 minutes.</em>

7 0

4 years ago

Can someone help me?

12345 [234]

$A= ab \frac{sin \theta}{2}$
where A is area
a is side a lets say its 8cm
b is side b lets say its 7 cm
theta is 28

4 0

4 years ago