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sveta [45]
3 years ago
14

Please do all of them correct and quick I will mark brainliest and 10 points ty pls I’m on a time limit

Mathematics
1 answer:
sweet-ann [11.9K]3 years ago
7 0

1: 9pi

2. 18

3. 12pi

4. 672

5. 23.94

6. 10 3/4

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Work out the perimeter of a quarter-circle with radius 7cm.
Flura [38]

Answer:

25

Step-by-step explanation:

p=1÷4pir+2r

1÷4×22÷7×7+2(7)

=11cm+14cm

=25

7 0
3 years ago
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Find the missing lengths. Leave your answers as radicals in simplest form.
Aleksandr-060686 [28]

Answer:  

y = 5√2/2

x = 5

Step-by-step explanation:

First find y using the tan method: opposite/adjacent

tan(45) = 5√2/2 ÷ y

y = 5√2/2 ÷ tan(45)

y = 5√2/2

Then find x using the pythagoris theorem: c^2 = a^2 + b^2  

x = √ (5√2/2)^2 + (5√2/2)^2

x = 5

4 0
3 years ago
You sign up for karate classes. The classes are $80 per month.
maria [59]
The amount of dollars you pay for each month can be shown by d=80m
4 0
4 years ago
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During batting practice, two pop flies are hit from the same location, 2 s apart. The paths are modeled by the equations h = -16
drek231 [11]

9514 1404 393

Answer:

  40.5 ft

Step-by-step explanation:

Solve for the time at which the balls meet, then find the corresponding height.

__

The balls will meet at the height such that the two values of h are the same.

  -16t^2 +56t = h = -16t^2 +156t -248

  0 = 100t -248

  t = 2.48

Using the first equation to find h, we have ...

  h = t(-16t +56) = 2.48(-16·2.48 +56) = 40.4736

The balls meet at a height of about 40.5 feet.

5 0
3 years ago
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Choose the best answer.
ElenaW [278]

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Among the four options provided

The Type of Account which is not a Savings account

Option D : Automatic Account

First three are different kind of Saving account.

6 0
3 years ago
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