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3 years ago

What is a fractional and decimal equivalent of 9/20

Mathematics

2 answers:

skelet666 [1.2K]3 years ago

6 0

Answer:4.25 and

7/10

Step-by-step explanation:

never [62]3 years ago

4 0

Answer:

.45 and 9/20

Step-by-step explanation:

9 divided by 20 is .45 which is how you get a decimal.

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What's the equation for circumference

OleMash [197]

If youknow the diameter of the circle, then
   Circumference = (π) x (Diameter).

If youknow the radius of the circle, then
   Circumference = (π/2) x(radius).

If you know the area of the circle, then
   Circumference= 2 √ (π A) .

8 0

3 years ago

Read 2 more answers

Please help! With explanation, thanks!

Ber [7]

45.6%, I think

If the angle was 45 degrees, then 50% of the circumference of the ice cream would be inside the cone.
But the real angle is 41. 41 = (41/45) * 45

So if we multiply 45 by 41/45, we get 41. In the same way, if multiply the "50%" by 41/45, we get the percentage of ice cream circumference that is in the cone.

50% * 41/45 = 45.6%

4 0

3 years ago

Is 2.549 the same as2.5

Harlamova29_29 [7]

If you are rounding to the nearest tenth then yes

4 0

3 years ago

Solve for x.

Ivahew [28]

ANSWER

$x=\frac{2-\sqrt{10}} {3}$

or

$x=\frac{\sqrt{10}+2} {3}$

We have

$3x^2-4x-2=0$

Since we cannot factor easily, we complete the square.

Adding 2 to both sides give,

$3x^2-4x=2$

Dividing through by 3 gives

$x^2-\frac{4}{3}x= \frac{2}{3}$

Adding $(-\frac{2}{3})^2$ to both sides gives

$x^2-\frac{4}{3}x+(-\frac{2}{3})^2= \frac{2}{3}+(-\frac{2}{3})^2$

The expression on the Left Hand side is a perfect square.

$(x-\frac{2}{3})^2= \frac{2}{3}+\frac{4}{9}$

$\Rightarrow (x-\frac{2}{3})^2= \frac{10}{9}$

$\Rightarrow (x-\frac{2}{3})=\pm \sqrt{\frac{10}{9}}$

$\Rightarrow (x)=\frac{2}{3} \pm {\frac{\sqrt{10}}{3}$

Splitting the plus or minus sign gives

$x=\frac{2- \sqrt{10}} {3}$

or

$x=\frac{\sqrt{10}+2} {3}$

3 0

3 years ago

Read 2 more answers

PLEASE PLEASE PLEASE HELP!!

Tema [17]

My answer is use a map app like Photomath

8 0

3 years ago