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docker41 [41]
3 years ago
9

Can someone please help me??

Mathematics
2 answers:
Artemon [7]3 years ago
8 0

Answer:

<em>A</em>= 153.94

Step-by-step explanation:

<em>A</em>= πr²

<em>A</em>= π(7)²

Svet_ta [14]3 years ago
4 0

Answer:

A= 153.86

A=49\pi

Step-by-step explanation:

You again....

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Are 0,2,5 closed or not under addition
kvasek [131]

Answer:

There are closed addition.

Step-by-step explanation:

Closure (mathematics) ... For example, the positive integers are closed under addition, but not under subtraction: is not a positive integer even though both 1 and 2 are positive integers. Another example is the set containing only zero, which is closed under addition, subtraction and multiplication.

So, 0,2,5 are closed addition

Please mark me brainliest.

3 0
3 years ago
A piece of string is 325 centimeters long you need it to be 1 1/4 meters long how many centimeters should you cut off
Tanya [424]
200 centimeters. Because there are 100 centimeters in a meter. <span />
4 0
3 years ago
Suppose f(x)=4x-2 and g(x)=-2x+1
choli [55]
In order to get g(x) you would multiply the equation of f(x) by -1/2.
4x(-1/2)=-2x and -2(-1/2)=1.
3 0
3 years ago
A football is passed through the air and caught at ground level for a touchdown. The height of the ball (h) is given by h= -d² +
IgorC [24]

Answer:

d = 6+sqrt(42)=12.4807407

Step-by-step explanation:

h= -d² + 12d + 6

The ball is caught at ground level  which means h=0

0 =  -d² + 12d + 6

Subtract 6 from each side

-6 = -d^2 +12d

Factor out a - sign

-6 =-(d^2-12d)

Divide by -1

6 = d^2 -12 d

Complete the square

-12/2 = -6  then square it = 36

Add 36 to each side

6+36 = d^2 -12d +36

42 = (d-6)^2

Take the square root of each side

±sqrt(42) = sqrt( (d-6)^2)

±sqrt(42) =  (d-6)

Add 6 to each side

6±sqrt(42) =  (d-6)+6

6±sqrt(42) =  d

d = 6+sqrt(42)=12.4807407

d =6- sqrt(42)=-.480740698

Since the distance cannot be negative

3 0
3 years ago
What is 11 1/8 as a decimal?
Vika [28.1K]
This means 11 + 1÷8

So 11 + 0.125

Final answer 11.125

Hope you understand :)
3 0
3 years ago
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