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Tasya [4]
2 years ago
13

Find the perimeter and round your answer to the nearest tenths. Can anyone help me with this? I cannot find any videos or exampl

es like this and I'm extremely confused​

Mathematics
1 answer:
liberstina [14]2 years ago
3 0

Answer:

22.8

Step-by-step explanation:

the rectangular has :

the length CD =√[(3+3)²+(0-5)²]

= √(36+25) = √61 = 7.8

the width BC =√[(5-3)²+(3-0)²]

=√(4+9 =√13 = 3.6

so, the perimeter = 2(7.8 + 3.6)

= 2× 11.4 = 22.8

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Ms. Riders asked 15 piano students how many hours of practice they put in each week. The list shows the data she recorded.
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See the attached image below for the dot plot. The center is at 8 with dots on either side of 8 being a mirror copy of one another. For example, there are 2 dots over 6 and 2 dots over 10

<h3>Answer: B. The data is symmetrical</h3>

7 0
3 years ago
Please help me find n. 1/3=n+3/4
raketka [301]

Answer:

-5/12

Step-by-step explanation:

Let's solve your equation step-by-step.

1 /3  = n +  3 /4

Step 1: Flip the equation.

n +  3 /4  =  1/ 3

Step 2: Subtract 3/4 from both sides.

n+  3 /4  −  3/4   =  1/ 3  −  3 /4

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3 years ago
Jocelyn's car tires are spinning at a rate of 120 revolutions per
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Here’s the work - answer is 0.833 mi

6 0
3 years ago
16. What are the values of a and b?
MrMuchimi

Answer:

  a = 20; b = 2√101

Step-by-step explanation:

The triangle at upper left and the one at lower right are similar. Ratios of corresponding sides are equal, so ...

  200/a = a/2

  400 = a^2

  √400 = 20 = a

Then, by the Pythagorean theorem, the value of b can be found:

  b = √(a^2 + 2^2) = √(400 +4) = √4·√101

  b = 2√101

4 0
3 years ago
Use the substitution method to solve the given system of equations. Write your answer as an ordered pair, (x, y).
Gnoma [55]

Answer:

(-3, -2)

Step-by-step explanation:

Look at the second equation, we can easily rearrange it to make x the subject.

x - 4y = 5

x = 4y + 5

Now lets put that into the second equation

2x - 2y = -2

2(4y + 5) - 2y = -2

6y + 10 = -2

6y = -12

y = -2

Now lets find x!

x = 4y + 5

x = 4(-2) + 5

x = -3

Now lets format the answer like the question says (ordered pair)

(-3, -2)

Recap: We used substitution and made an equation to work out one of the variables first, then found the second variable using the first.

3 0
3 years ago
Read 2 more answers
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