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max2010maxim [7]
2 years ago
14

Can someone help plz ill give brainiest

Mathematics
1 answer:
Whitepunk [10]2 years ago
7 0

Answer:

402.123859659

Step-by-step explanation:

first we use A=πr2

this gives us A = 16π

Then multiply by 8 to get 128π

128π = 402.123859659

You might be interested in
Which equation is equivalent to 8x + 3 ( x +5) -5 (x-4) = 2
galina1969 [7]

Answer:

Step-by-step explanation:

x = -11/2

6 0
3 years ago
(2a divided by 7) - (a-4)
Shkiper50 [21]

Answer:

a=28/5 or 5.6

Step-by-step explanation:

2a/7=a-4

Multiple both sides of the equation by 7

2a=7a-28

Subtract 7a from both side

2a-7a=-28

Like Term

-5a=-26

Divide -5 from both side

a= 5.6

6 0
3 years ago
EXTRA POINTS
timurjin [86]
M=4
Point Slope Form-  y-1=4(x+2)
Slope Intercept Form-  y=4x+9
6 0
3 years ago
A line passes through the points (6, 2) and (1, -1). Which is the equation of a line?
Illusion [34]

Answer:

3/5

Step-by-step explanation:

(6, 2) and (1, -1)

To find the slope of the line, we use the slope formula: (y₂ - y₁) / (x₂ - x₁)

Plug in these values:

(-1 - 2) / (1 - 6)

Simplify the parentheses.

= (-3) / (-5)

Simplify the fraction.

= -3/-5

= 3/5

This is your slope.

Hope this helps!

8 0
3 years ago
PLZ HELP FAST!!! will mark brainliest, What is the best approximation for the circumference of a circle with a diameter of 500 k
NikAS [45]
Hey there,

So, we need to remember that the circumference of a circle is \pi3.14

So this means that we would do  500×3.14.

And by this we do. . 

Firstly, work out 4 × 500. As mentioned before, we can ignore the decimal point for now. The smaller figures in green are the tens figures carried over. Working from right to left:

4 × 0 = 0

4 × 0 = 0

4 × 5 = 20

<span>Put the 0 in the appropriate column and carry the 2.
</span>
We now work out 10 × 500.
This can be written as 1 × 500 × 10.

Because we are multiplying by 10, we place 1 zero to the right and then work out 1 × 500.

1 × 0 = 0

1 × 0 = 0

<span>1 × 5 = 5
</span>
Lastly, work out 300 × 500.
This can be written as 3 × 500 × 100.

Because we are multiplying by 100, we place 2 zeroes to the right and then work out 3 × 500.

3 × 0 = 0

3 × 0 = 0

3 × 5 = 15
<span>
Put the 5 in the appropriate column and carry the 1


</span>Finally the 3 rows are added together starting at the right. The smaller figures in green are the tens figures carried over.

0 + 0 + 0 = 0

0 + 0 + 0 = 0

0 + 0 + 0 = 0

0 + 5 + 2 = 7

5 = 5

1 = 1

How is the decimal point positioned? 3.14 has 2 digits after the decimal point.

The final answer must also have 2 digits after the decimal point.

<span>So: 500 × 3.14 = </span>\boxed{1570.00}

~Jurgen

7 0
3 years ago
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