Mathematics Middle School

Please help how do you solve this?

Please Help How Do You Solve This?

Answers

Answer 1

Answer:

A, 120 degrees

Step-by-step explanation:

Answer 2
Answer:  A) 120 degrees

=============================================================

Explanation:

Triangle ABC is equilateral, so all three sides are the same length. This means the three angles are also the same measure. Call each interior angle x.

The three angles add to 180, so x+x+x = 180 solves to x = 60. Each interior angle is 60 degrees.

Angle DAC is an exterior angle of measure 180-x = 180-60 = 120 degrees

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Or another method you could use is the fact that all exterior angles of any polygon add to 360.

Since we have n = 3 sides, this means each exterior angle of an equilateral triangle is 360/n = 360/3 = 120 degrees

We consider this a regular polygon because all sides are the same length and all angles are the same measure. So the formula for the exterior angle measure 360/n would apply to any regular polygon and not just triangles.

Related Questions

pls help ill give brainliest

Answers

Answer: They are incorrect

Step-by-step explanation: They are incorrect because 12+15=27 and 20+9=29 so it won't work out because the numbers need to be equal. I hope this helps!

12+15 = 27 20+9= 29 PLEASE GIVE BRAINLIEST

order the numbers from greatest to least:2.2 3.200 3.020

Answers

Answer: 2.2, 3.020, 3.200

Answer:

3.200, 3.020, 2.2

Step-by-step explanation:

Can you plz help me right now

Answers

Answer:

so the first awnser is 90 and i am verry sorry but i do not know how to do the second one and the third does not have enogh information

Step-by-step explanation:

1. so first 12 inches is one foot, multiply 12 by 60 to get 720 now because it says that 1 inch is 8 feet and 720 is how manny inches it is so 720 divided by 8 is 90.

brainliest to right answer

Answers

Answer:

Step-by-step explanation:

ikr I hate it when people troll

3.4 is the answer .....

Yesterday, I spent $29.81 for 11 gallons of gasoline. What is the unit rate of the gasoline?

Answers

Answer:$2.71 per gallon

Answer:

$2.71 a gallon

Step-by-step explanation:

To find the unit rate which is one gallon equals how many dollars, all we have to do is divide 29.81/11 to find out how much 1 gallon equals, which is $2.71/gallon.

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Answers

Answer:

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

Step-by-step explanation:

the answer would be 8

A family buys 5 airline tickets online. The family buys travel insurance that costs $19 per ticket. The
total cost is $915. Let x represent the price of one ticket. Write an equation for the total cost. Then find
the price of one ticket.

Answers

Answer:

One ticket is $164. The expression is (5*19) + (5*164) or (5*19) + 5x

Step-by-step explanation:

19*5 = 95

915 - 95 = 820

820/5 = 164

The price of one ticket is $164.

Hope this helps. Have a nice day.

$164 I agree with the person befor me

PLEASE ANSWER WELL COUNTS AS A BIG GRADE

Answers

Answer:

-A: B

-B: D

-C: A

Hope this helps! :)

Answers:

14A. B: $25.44

14B. D: $6.36

14C: A: peanuts

Comment:

I hope this helps!

Help me!!!!!!!!!!!!!!!!!!!!!

Answers

A. 5. Weeeeeeeeeeeeee

Answer:

its A

Step-by-step explanation:

S^2+3s-10=0 complete the square and show your work so I can learn how to do it please and thanks!

Answers

S^2+3s-1”=0 pls give Brainliest Im BEGGING
s^2+3s=10
(s+1.5)^2=10+2.25
(s+1.5)^2=12.25
|s+1.5|=3.5
s+1.5=3.5, s+1.5=-3.5
s=2, s=-5

how do i find the volume in a 3d shape

Answers

Step-by-step explanation:

You do Length x width x height right Prism

Prism or Cylinder = A is the area of the base x h the height.

Cube = s  is the length of the side.  V = s powered by 3

Prymid or cone = A  is the area of the base, h  the height.  V = 1/3Ah

Sphere = V = 4/3 πr powered by 3

This is all the volume I could remeber.

Sorry if it is not you what you are asking

During an annual end-of-year performance review, a team of realtors reported the number of homes sold that year. The histogram shows those sales results. Which of the following statements are true about the home sales data set represented by this histogram? Select all that apply.

Answers

Answer:

There were 7 realtors who sold at least 40 homes

Please help me please I don’t understand and my teacher said I got it wrong for numbers 1 2 and 3

Answers

Answer:

1) 5/9

2) 4/7

3) 3/8

Step-by-step explanation:

1) 5/9

2) 4/7

3)3/8

1. 4:5 or 4/5
2. 4:3 or 4/3
3. 3:5 or 3/5

Im helping my little cousin do his math the yellow highlighted ones need to be checked. (NOT THE RED HIGHTAILED ONES)

Answers

Answer:

Step-by-step explanation:

i dont understand

redo of cow doing something with grass lol

Answers

Answer:

I'm confused-

Answer: A Lawn Moo-er

Step-by-step explanation:

That’s probably it. These worksheets always have 1,000 year old dad jokes. You don’t have to do the math if you just look up the joke.

Help?

I need explaining doe am stoopid

Answers

the answer to the first one is $7.60 because when you add $0.40 with $0.90, you get $1.30. because you have to add this to the money in the piggy bank, you would get $7.60; $6.30 + $1.30

Answer:

1.) 7.60

2.) 3.70

3.) 7.20

4.) 9.20

Step-by-step explanation:

6.30 + 0.40 + 0.90 = 7.60

Barrys has $7.60 total

3.20 + 1.60 = 4.80

8.50 - 4.80 = 3.70

Henrys change is $3.70

1.20 + (1.20 × 5)

1.20 + 6 = 7.20

The bouncy ball and pen cost $7.20 together

Monday: $2.30

2.30 × 3 = 6.9

Tuesday: $6.90

6.90 + 2.30 = 9.20

Joe found $9.20 total on Monday and Tuesday

PLEASE HELP WILL MARK BRAINLIEST!!

Answers

uhh i need more context
Answer: 11

Explanation: 2+2+4+1+1+1= 11

help im just doing this for my brother :C

Answers

Answer:

578

Step-by-step explanation:

118 + 560 = 678

678 - 100 = 578

578 is your answer

Answer:

578

Step-by-step explanation:

Add 18 to 560 and you get 578. Reason why is because they subtracted 18 from 118 and now you got to add it to 560. Hope that made sense

A bank is offering 2.5% simple interest on a savings account. If you deposit $5000, how much interest will you earn in one year? pls help due in 5 mins

Answers

Answer:

125 dollars

Step-by-step explanation:

Find the average rate of change for f(x)=-4x² over the interval -4≤x≤-2. Enter your answer as a number. *

Answers

Answer:

45

Step-by-step explanation:

At the start of 6th grade, Maya measured 140 cm tall. At the start of 7th grade, Maya was 150.5 cm tall. What is the percent increase in Maya's height between the start of 6th and 7th grade?

Answers

I’m gonna say like 6.97 percent but I’d check just in case and I don’t know if you have to round or not
I Double checked and also got 67.1

PLEASE HELP ME WITH MY MATH (1-9) BUT SKIP NUMBER 5

Answers

Answer:

1 22

2 57

3 60

4 15

5 14

Step-by-step explanation:

also, how many geometry worksheeta do u have, holy

Donna's kitchen is being re-tiled. The diagram of the kitchen is shown. What is the minimum number of square feet of tile that will be needed to complete this job?

Answers

I think it would be 90 be cause 4x5=20 and 10x7=70 70+20=90

Answer: 275 i think

Step-by-step explanation:

Jessica has 5 members in the sewing club that she started. In order to get school sponsorship she must have at least 30 members. How many more members does she need? Write an inequality that models this situation. A) 5 + x ≥ 30 B) 5 + x ≤ 30 Eliminate C) 30 + x ≥ 5 D) 30 + x ≤ 5

Answers

Answer:

A)

Step-by-step explanation:

The answer is A
Explanation is just I think

Jared is constructing a circle graph to
illustrate the favorite sports of the
30 students in his class. Of those, 6 chose
basketball as their favorite sport. What
percent of the circle should Jared shade to
represent those 6 students' choice?

Answers

Answer:

1.8

Step-by-step explanation:

because since its 30 students and 6 of those chose basketball.

So u divide 30 from 6

= 1.8%

So Jared shaded 1.8% of the 6 students that chose basketball.

When a number is increased by 5.5%, the result is 60. What is the original number to the nearest tenth?

Answers

60.5% is your answer I’m pretty sure
I think that it is 10.909

can anyone help me out, if you answer the question right i will give you a brainliest.

Answers

Answer:

It's different because the experiment is more accurate as it progresses.

Step-by-step explanation:

You'll notice that the higher the numbers get in the experiment the closer it gets to your solution. The theoretical probability of flipping a coin is about 50% heads and 50% tails, but it doesn't always seem like that in an experiment. The experimental probability from your experimentation so far would be 62% of heads and 38% of tails.

Solve the equation 1/3 ÷ 6. SHOW YOUR WORK.

Answers

Answer:

the answer is 1/18

Step-by-step explanation:

first when deviding you make the last number the reciprocal of the number it was before, in this case, 1/3 ÷ 6 would equal to 1/3 x 1/6, which would get a result of 1/18, hope this helps!

I also got 1/18 and asked my teacher he said it was right hope it helps

What is the coefficient of the term in x in the following algebraic expressions?
a.2x - 7
b.x/2 - 10
c.- x + 7
d.x + 7
e.- x / 4

Answers

Answer:

a)  2

b)  1/2

c)  -1

d)  1

e)  -1/4

Step-by-step explanation:

7x(7) + 7(2) = 7(x+2)
How many solutions does this equation have?
-one
-none
-infinite

Answers

Answer: One

Step-by-step explanation:

7x(7) + 7(2) = 7(x + 2)

49x + 14 = 7x + 14

49x = 7x

x = 0

7x(7)+7(2)=7(x+2)

the answer is: one
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