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horrorfan [7]
3 years ago
10

Help me please! thanksss

Mathematics
1 answer:
Fittoniya [83]3 years ago
8 0
7:45 -1 hour=6:45

The concert started at 6:45


7:45+2 hours=9:45

The concert will be over at 9:45

The time outside the theater is

5:30a.m. or 5:30p.m.

It's most likely 5:30p.m. as 5:30a.m. is really early in the morning.
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Rectangle w/area of 91 has dimensions of (x+2) and (2x+3). Solve for dimensions.
Leviafan [203]

Answer:

5unit

Step-by-step explanation: since area of rectangle = length*width

Here length is (x+2) and width is(2x+3)

(x+2)(2x+3)=91

On further solving

2x^2+75x-85=0

2x^2-10x+17x-85=0

2x(x-5)+17(x-5)=0

(2x+17)(x-5)=0

x=5unit

8 0
3 years ago
Does online school suck?? what do u like better online or in person.??
Andru [333]
Honestly online school is better because it’s safer
6 0
3 years ago
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How do you solve <br> 10 squared + 13 squared = c squared<br> (Pythagorean theorem)
alina1380 [7]
10^2 + 13^2 =c^2\\\\100 + 169=c^2\\\\269 = c^2\\\\\boxed{\bf{c=\sqrt{269}\approx 16.4}}
5 0
3 years ago
Please can someone do this for me? thanks alot x
Nimfa-mama [501]

Answer:

<em>Learning Objective</em>: Use the mean and range to <u>compare</u> the spread and averages.

a) Sarah Mean = 70.9, Katie Mean = 78.9

b) Sarah Range = 15, Katie Range = 25

c) Sentences

- The <u>mean</u> shows, on average, Sarah was 8 seconds quicker than Katie.

- The <u>range</u> shows that Sarah was more consistent with her times. Katie had a larger spread of times which shows she was less consistent.

Step-by-step explanation:

Given:

Sarah's Data Set:

  • 79, 70, 68, 75, 69, 64, 69, 75, 64, 76

Katie's Data Set:

  • 79, 79, 76, 81, 89, 76, 64, 85, 82, 78

To Find:

  • The mean and range of both data sets separately.

Work:

The mean of a data set is commonly known as the average. You find the mean by taking the sum of all the data values and dividing that sum by the total number of data values. The formula for the mean of a population is \mu = \frac{{\sum}x}{N}.

The formula for the mean of a sample is \bar{x} = \frac{{\sum}x}{n}.

Both of these formulas use the same mathematical process: find the sum of the data values and divide by the total. For the data values given above, the solution is: \frac{709}{10} = 70.9

Therefore, the mean of Sarah's data set is 70.9.

For Katie's Data Set, \frac{789}{10} = 78.9.

Therefore, the mean of Katie's data set is 78.9.

To fill in the summary, we have to use the data we just calculated.

That summary can be found in the answer section.

4 0
2 years ago
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AngleFBC and AngleCBG are supplements, AngleDBG and AngleDBF are supplements, and AngleCBG Is-congruent-to AngleDBF.
wlad13 [49]

Answer:

FBC=DBG

Step-by-step explanation:

Edge 2020

7 0
3 years ago
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