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2 years ago

Which solution shown below contains an error?

Mathematics

1 answer:

KIM [24]2 years ago

4 0

Ma che è 83384838388393

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Find the circumference of the circle with 1/4 Pi square centimetre square 2<br>

otez555 [7]

Answer:

The circumference of the circle is 6 cm (approximately).

Step-by-step explanation:

Given:

Area of the circle = 1/4π²

Now, to get the circumference of the circle we need the radius.

So, finding the radius by putting the formula of area:

Area = $\pi r^{2}$

$\frac{1}{4} \pi ^{2}$ = $\pi r^{2}$

dividing π by both sides:

$\frac{1}{4}\pi$ $=r^{2}$

using square root on both the sides:

$\frac{1}{2}\sqrt{\pi } = r$

So, the radius is $\frac{1}{2}\sqrt{\pi }$

Now, putting the formula of circumference:

$circumference=2\pi r$

= $2\pi\frac{1}{2} \sqrt{\pi}$

= $\pi \sqrt{\pi}$

putting the value of π =3.14

= $3.14\times\sqrt{3.14}$

= $3.14\times1.77$

= $5.56$

Circumference = 5.56 cm

Therefore, the circumference of the circle is 6 cm (approximately).

4 0

3 years ago

In the number 5.3779, how does the value of 7 in the hundredths place compare to the value of the 7 in the thousandth place?

anygoal [31]

Answer:

(b)

Step-by-step explanation:

The hundredths place is immediately to the left of the thousandths place. In our base-10 number system, moving a digit to the left one place increases its value by a factor of 10.

The value of 7 in the hundredths place is 10 times the value of 7 in the thousandths place.

6 0

2 years ago

4. Express each percent as a decimal number and

il63 [147K]

A) 0.955 and 199/200
B) 1.40 or 1.4 and 1 2/5
C) 0.90 or 0.9 and 9/10

5 0

2 years ago

Read 2 more answers

The value pi/2 is a solution for the equation 2sin^2 x -sinx-1=0

nikklg [1K]

me so sorry come back laterAnswer:

Step-by-step explanation:me so sorry come back later

7 0

2 years ago

Hiw ti factorise x*-16

ra1l [238]

Im assuming the problem is x^2-16, which would be factored to (x-4)(x+4)

7 0

2 years ago