All categories

3 years ago

HELP WHAT DOES THIS EVEN MEAN [CRY]

Mathematics

1 answer:

Sever21 [200]3 years ago

6 0

Radius=r=5cm.

$\\ \sf\longmapsto A=πr^2$

$\\ \sf\longmapsto A=3.14(5)^2$

$\\ \sf\longmapsto A=3.14(25)$

$\\ \sf\longmapsto A=78.5cm^2$

You might be interested in

Solve 3x^2 + 6x+15=0

Elden [556K]

Answer:

The solution of given equation is ( - 1 + 2 i ) , ( - 1 - 2 i )

Step-by-step explanation:

Given equation as :

3 x² + 6 x +15 = 0

The value of x fro the quadratic equation a x² + b x + c = 0 is obtained as

x = $\frac{-b\pm \sqrt{b^{2}-4ac}}{2a}$

So , from given eq , the value of x is now obtain as

x = $\frac{-b\pm \sqrt{b^{2}-4\times a\times c}}{2\times a}$

Or, x = $\frac{-6\pm \sqrt{6^{2}-4\times 3\times 15}}{2\times 3}$

Or, x = $\frac{\sqrt{-144} }{6}$

∴ x = ( - 1 + 2 i ) , ( - 1 - 2 i )

Hence The solution of given equation is ( - 1 + 2 i ) , ( - 1 - 2 i ) Answer

6 0

4 years ago

Someone help me with this

DaniilM [7]

Answer: 7.5

Step-by-step explanation:

3 0

3 years ago

the mean average distance that jack runs in his last 10 runs is 5.7 miles. work out the distance that he would need to make this

ziro4ka [17]

Answer:

9 miles

Step-by-step explanation:

mean is calculated as

mean = $\frac{sum}{count}$ , then

$\frac{sum}{10}$ = 5.7 ( multiply both sides by 10 )

sum = 57

let x be the distance he needs to cover so mean is 6 , that is

$\frac{sum+x}{11}$ = 6 ( multiply both sides by 11 )

sum + x = 66 , that is

57 + x = 66 ( subtract 57 from both sides )

x = 9

That is he would have to run 9 miles

3 0

2 years ago

A student lives 3 miles from the library . He is riding his bike to the library . The distance he has remaining y is a function

astraxan [27]

Would the answer be 6? or 9?

4 0

3 years ago

The stack on the left is made up of 15 pennies, and the stack on the right is also made up of 15 pennies. If the volume of the s

Murljashka [212]

Answer:

the answer is 52,734,375

8 0

4 years ago

Read 2 more answers