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kozerog [31]
2 years ago
13

Help me im losing brain cells day by day i dont know what to do

Mathematics
1 answer:
Gekata [30.6K]2 years ago
7 0

Answer:

answer is down below

Step-by-step explanation:

4/10 0.4

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What is the circumference of this circle, in centimeters? Use for .
Orlov [11]

Answer:

what is the circle.

Circumference is diameter x 3.14.

Diameter is the whith of a circle.

Ex. diameter = 4

4 x 3.14 = 12.6cm.

Step-by-step explanation:

5 0
3 years ago
What is the surface area of a sphere with a radius of 14 units?
zloy xaker [14]

Answer:

SA=784\pi\ units^{2}

Step-by-step explanation:

we know that

The surface area of a sphere is equal to

SA=4\pi r^{2}

we have

r=14\ units

substitute

SA=4\pi (14)^{2}

SA=784\pi\ units^{2}

7 0
3 years ago
Alcona has a radius of 5 inches and a height of 5 inches what is the volume up and come to the nearest 10 inch cube :-)
Nookie1986 [14]
Pi * 5 squared = 25 Pi
25 Pi * 5 = 125 Pi or 392.6990817
and I'm not sure how to round to inch cube sorry. :(
4 0
3 years ago
The denominator of a fraction is two more than the numerator. If both numerator and denominator are decreased by six, the simpli
ira [324]

Answer:

\dfrac{40}{42}

Step-by-step explanation:

Let the numerator of the fraction=x

Since the denominator of a fraction is two more than the numerator.

Denominator=x+2

The fraction is therefore:

\dfrac{x}{x+2}

If both numerator and denominator are decreased by six, the fraction becomes:

\dfrac{x-6}{x+2-6}

The simplified result is \dfrac{17}{18}

Therefore:

\dfrac{x-6}{x+2-6}=\dfrac{17}{18}\\$Next, we solve for x\\Cross multiply\\18(x-6)=17(x+2-6)\\18(x-6)=17(x-4)\\Expand the bracket\\18x-108=17x-68\\Collect like terms\\18x-17x=-68+108\\x=40

Substituting x=40 into the initial fraction

\dfrac{x}{x+2}=\dfrac{40}{40+2}=\dfrac{40}{42}

Therefore, the original fraction is \dfrac{40}{42}

4 0
3 years ago
Which numbers are factors of 4? Select all that apply.<br><br> 1<br> 4<br> 2<br> 3
brilliants [131]

Answer:

1,2,4

Step-by-step explanation:

Factors are the numbers that we can multiply together to make 4

1*4 = 4

2*2 = 4

The factors are 1,2 and 4

4 0
3 years ago
Read 2 more answers
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