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mrs_skeptik [129]
3 years ago
14

Find the distance between the two points rounding to the nearest tenth! PLEASE HELP ASAP!!! :

Mathematics
1 answer:
ZanzabumX [31]3 years ago
5 0
(-6,-5) (1,-8)
d= √(x₂−x₁)² +(y₂−y₁)²
d= √(1+6)² +(-8+5)²
d= √(7)² +(-3)²
d= √49+9
d= √51
d=7.1
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If you charge $10.25 an hour how many hours do you need to work to earn $8,425
alexandr1967 [171]
822 hours. 10.25x822 is $8,425.50.


6 0
3 years ago
the circular ripple caused by dropping a stone in a pond is increasing in area at a constant rate of 20 square meters per second
mojhsa [17]

Answer:

  2/π ≈ 0.637 m/s

Step-by-step explanation:

The rate of change of area with respect to time is ...

  A = πr²

  dA/dt = 2πr·dr/dt

Filling in given values in the above equations, we can find r and dr/dt.

  25π = πr²   ⇒   r = 5

  20 = 2π·5·dr/dt

  dr/dt = 20/(10π) = 2/π . . . . meters per second

The radius is increasing at the rate of 2/π ≈ 0.637 meters per second.

4 0
3 years ago
the sphere at the right fits snugly inside a cude with 14in edges. what is the approximate volume of the space between the spher
ella [17]

Answer:Find the vol of the sphere:

radius of the sphere = 3 in

V = %284%2F3%29%2Api%2A3%5E3

V = 97.858

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Find the vol between the sphere and cube:

216 - 97.858 = 118.142 cu/in

Step-by-step explanation:

6 0
2 years ago
Help pls I’ll give brainliest
kondor19780726 [428]

Answer:

7*7n=49n

-6V

-9*6n= -54n

-5k*-9=45k

-8*3b= -24b

double negative 6x answer 6x

-10*2a= -20a

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Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
A rectangular retaining wall has an area of
Veronika [31]

Answer:

The height of wall is 3 feet and length of wall is 5 feet

Step-by-step explanation:

Given as :

The Area of retaining wall = 15 square feet

Let The width of wall = W feet

The Height of wall = ( W - 2 ) feet

Now, Area of Rectangle = Height  width

Or , 15 ft² = ( W - 2 ) ft × W ft

Or,  15 = W² - 2 W

Or,   W² - 2 W - 15 = 0

Or,  W² - 5 W + 3 W - 15 = 0

Or, W ( W - 5 ) + 3 ( W - 5 ) = 0

So , ( W - 5 ) ( W + 3 ) = 0

So, W = 5 , - 3

∴ The width of wall = W = 5 feet

And The Height of wall = ( W - 2 ) = 5 - 2 = 3  feet

Hence The height of wall is 3 feet and length of wall is 5 feet. Answer

8 0
3 years ago
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