Mathematics Middle School

Look at the picture and answer the question: What is the length of QS?

Look At The Picture And Answer The Question: What Is The Length Of QS?

Answers

Answer 1

Step-by-step explanation:

firstly draw the triangle and label it. (you will find the picture down)

Now this remind us with the cosine rule. (you will find the picture down)

This rule says that the square of the given length of the side of a triangle is equal to the sum of the squares of the length of other sides minus twice their product and multiplied by the cosine of their included angle.

So using that rule we can say that:

[tex]QS^{2}[/tex] = [tex]QR^{2} +SR^{2} - 2(QR)(SR)(cosR)[/tex]

square root both sides, so you will have QS alone in one side.

QS = [tex]\sqrt{ [QR^{2} +SR^{2} - 2(QR)(SR)(cosR)]}[/tex]

plug in the values we have and y=this will yield:

QS = [tex]\sqrt{ [11^{2} +16^{2} - 2(11)(16)(cos38)] }[/tex] = 9.98099267 = 10

Look At The Picture And Answer The Question: What Is The Length Of QS?
Look At The Picture And Answer The Question: What Is The Length Of QS?

Related Questions

A cell phone battery with 22% charge takes 176 minutes to run out. How long will a fully charge battery last?

Answers

Answer:

800

Step-by-step explanation:

176 divided by 22=8

8x100= 800

It will take 13.33 hours to battery run out.

What is unit rate?

A unit rate means a rate for one of something.

Given that, A cell phone battery with 22% charge takes 176 minutes to run out.

In 22% → 176 minutes

In 1% → 176/22 = 8 minutes

In 100% → 8x100 = 800 minutes

800 minutes = 800/60 = 13.33 hours.

Hence, the battery will work for 13.33 hours when charged 100%

For more references on unit rates, click;

https://brainly.com/question/11258929

#SPJ2

Need help ASAP!! I Can give brainlist for the first right person.

Answers

Answer:

Step-by-step explanation:

1. 720,000

2. 119.50

3. 17.68

4. $75

5. 77.74

Pls help with this question

Answers

Answer:

it would be A

Step-by-step explanation:

the "<" (less sign) would mean B is less than A which is less than D which is less than C. if it is asking to put in the order which is greater than, there would need to be a ">" (greater sign). since there are no greater than signs, the process is flipped to be D is less than C which is less than A which is less than B meaning B is the greatest increasing likelihood, hope this helps :)

Answer:

(A) because it is more likely to draw a red or black card from a deck. Since the is letter d all the other choices don't have that so A is most likely the answer.

A car can travel 315 km on 35 liters of gas. How far will it travel
with 28 liters of gas

Answers

252 is the answerejwjwjejdjid

Kyle is 4 times older than liam. in six years kyle will be 2 times older than liam. how old are they now?
PLS HELP ASAP!!!!!

Answers

DUDE WHAT I DONT EVEN THINK YOU CAN ANSWER THAT- they didn’t give any backround knowledge on liam and kyle
it doesn’t make sense

-5a+573x(53+44)-54b) a=4 b=483

Answers

Answer:

-5a+55581-54b

Step-by-step explanation:

Step 1: -5a+573x97-54b

Step 2: -5a+55581-54b

What is the easiest way to solve y=3x-12, y=16-x using systems of equations.
1.Graphing
2.Substitution
3.Elimination
Also help me figure out how to tell in the future plz :)

Answers

Answer:

elimination

Step-by-step explanation:

You need to eliminate numbers from the equation until  it is solved.

Graphing is the answer for you

PLEASE HELP BRAINLIEST INCLUDED!!!
Show set of data that is a function using at least 5 domain values and 5 range values. It can be shown in a format of your choice (graph, table, set notation).

Answers

The answer is in the image attached. Hope this helps:)

Answer:

Step-by-step explanation:

x -3   -2   -2   0   1   2   3

y  16   9   4   1   0    1     4

A car has 15 gallons of gas in its tank. The car travels 35 miles per gallon of gas. It uses 135 of a gallon of gas to go 1 mile.

1. How far can the car travel with 15 gallons?

Answers

Answer:

525 miles

Step-by-step explanation:

Two unit rates are given in this problem:

miles per gallongallons per mile

Since we want to find miles, the appropriate rate to use is miles per gallon:

distance = mile/gallon x gallons

distance =35 miles/gallon x 15 gallons = 525 milles

The car can travel 525 miles on 15 gallons of gas.

(hope this helps can i plz have brainlist :D hehe)

Compare your estimates for the percentage of male university students from part A and part B. Which estimate do you think is more representative of the population? Use complete sentences in your answer and explain your reasoning.

Answers

75.76 i need more info you’re welcome

Select all the figures that are shaded to represent 60​% of the whole.
Select all that apply

Answers

Answer:

a

Step-by-step explanation:

a because there are 10 wholes and only 6/10 shaded and 6/10= 60%

Write 11/25 as a percent
Next question write 14/25 as a decimal

Answers

Answer:

44%

0.56

Step-by-step explanation:

You just divide the numerator by the denominator.

44%
And 0.56 hope this helps!

Can someone please help me

Answers

7pounds 2pounds 7-2= 5

Please help me I have to turn this in by 5:00 I will give you the brain thing and extra points. 2/5

Answers

I belive the answer is C because a line is 180° and that appears to create a line when its together

Answer:

C: <1+<5=180°

Step-by-step explanation:

I just learned about this stuff, and I am sorry but don't know how to explain it.

Once you have created both sets of numbers, complete the following tasks. In each task, make sure to clearly label which set you are identifying or describing.

1. Identify the elements of each set that you created.
2.Calculate the mean of each set. Show your work in your answer.
3.Calculate the mean absolute deviation of each set. Show your work in your answer.
4. Describe the process you used to create your sets of numbers under the given conditions.

Answers

Answer: yes

Step-by-step explanation: because it trusts me

What is the value of x?

Enter your answer in the box.

x =

Answers

Answer:

39

Step-by-step explanation:

Since the value of all angles within a triangle must equal 180 degrees, if you know at least two angles, you can subtract them from 180 to find the missing third angle.

i think the answer is 39

Write the equation of the line in fully simplified slope-intercept form.

Answers

Y=1/5x+7

The y intercept is the +7, and the fraction, 1/5 is your slope
the answer is y=1/5 +7

Need help wasn't there for a lesson

Answers

These are linear equations, so there is x and y. On number one the first thing they plotted was (3,8) so in a function table the 3 would be on the left side and the 8 would be on the right side. I’ll leave you with the rule of the first one, if the rule is times 2 plus to the how would you put it in a function table.

The first thing that you would put into the function table on the first question would be as I said earlier 3 and then 8. The rule is the rate. Using a function table will be very helpful (That’s why I keep mentioning one). Let me know if this helps.

Please answer both. A is choose one. B is estimating the whole number and then round it.

Answers

Answer:

for A it's the first answer and for b 15826

for the a its the the first one and b is 15628

Please help this is a test!!! Giving brainlist if explained correctly. thx

Answers

Answer:

your answer is 70%

Step-by-step explanation:

simple do total amounts of dot vs all dots and x and you get 14 out of 20

and then convert that to a percentage and you get 70%

Answer:

.................. ....

Brooklyn Middle School has 345 students. The principal is planning a field trip. If 60% of the school will be going on the field trip, how many students will attend the trip?

Answers

207 students will attend the trip

Answer:

I think it's 207, hope that this helps you!

I need helppp ASAP plsssss

Answers

Answer:

12.56

Step-by-step explanation:

c= 2x3.14x 2km= 12.56

The answer is 10.14km because you multiple by

please help with this question! will give brainleist

Answers

Answer:

28%

Step-by-step explanation:

It's D

Answer:

D. 28%

Step-by-step explanation:

25 - 18 = 7

7 people failed the test.

7/25 = 0.28 = 28%

28% of students did not pass the test.

ahh help
A=1/2\piw^2+2lw solve for l

Answers

Answer:

l= A/2w -piw/4

Step-by-step explanation:

wda wdawd

help with this answer plsssssss

Answers

Answer:

168

Step-by-step explanatio16n:

V = lw ·h/3

7x8x13= 728. 728/3= 242.6 repeating

Find the percent of change from 6,570 pt to 16,425 pt.

Answers

Answer:

Percentage Change | Increase and Decrease

First: work out the difference (increase) between the two numbers you are comparing.

Increase = New Number - Original Number.

Then: divide the increase by the original number and multiply the answer by 100.

% increase = Increase ÷ Original Number × 100.

Step-by-step explanation:

hopefully this helped and you can find the percent change.

I think you would do
6,570 divided by 16,425
And that would get you
0.4%

Peter complete 7 miles in 6 min. At what rate must he run in order to finish in 42 min?
63
29
49
112

Answers

49 because 42 / 6 = 7 and 7 x 7 = 49

please help me with these two

Answers

Answer:

D

Step-by-step explanation:

One of the sweaters that Regina purchased was marked down by 15%, the sale price was $143. 65. What was the original price of the sweater?

Answers

Answer: 169$

Step-by-step explanation:

None

This triangle has one side that lies on an extended line segment.

Based on this triangle, what statement about x is true?


A. x = 33 because 180−147=33

B. x = 62 because 147−85=62 and 85 + 62 = 147

C.x = 95 because 180−85=95 and 85 + 95 = 180

D.x = 118 because 180 − 147 + 85 = 33 + 85 = 118

Answers

im am here the math god all i have to say it is b

Answer:

b

Step-by-step explanation:

i a math and sciencie king trust me

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