Ask question

Ask question

All categories

Anestetic [448]

3 years ago

7

HELP WITH 20 PLEASE!

1 answer:

WINSTONCH [101]3 years ago

6 0

← BACK PRINT + TEXT SIZE – SEARCH HOME

search

Question from Amanda, a parent:

what is the area of a circle with a circumference of 3000 metres?

Amanda,

The area of a circle is given by the formula A = π r2, where A is the area and r is the radius. The circumference of a circle is C = 2 π r.

If we "solve for r" in the second equation, we have r = C / (2 π ). Now we use this to replace r in the first equation: A = π [ C / (2 π ) ]2.

When we simplify this, we get A = C2 / (4 π).

Now you can put your value of C into this equation and find A. Remember, π is about 3.1416.

You might be interested in

(-7 - 2n)(-0.6) simplify equation

Degger [83]

Answer:

4.2 + 1.2 n

hope this helps!

7 0

3 years ago

Armando is baking 36 batches of brownies for the bake sale. Each batch of brownies takes cups of flour. What is a reasonable est

Goshia [24]

Answer:

Well, let's assume that "cups" = 3 cups of flour.

Step-by-step explanation:

First, multiply 3x36.

If for some reason this is incorrect, try 2 cups instead of 3. Both are reasonable measurements when it comes to baking.

8 0

3 years ago

If f(x) = 4x – 3 and g(x) = x + 4, find (f – g)(x).

Kaylis [27]

<span>C. 5x – 1 im possitive</span>

6 0

3 years ago

There are eight students in a class. Only one of them has passed Exam P/1 and only one of them has passed Exam FM/2. No student

Svetach [21]

Answer: There is probability of 0.57 chances that exactly three students from a group of four students have not passed Exam P/1 or Exam FM/2.

Step-by-step explanation:

Total number of students = 8

Number of student who has passed Exam P/1 = 1

Number of student who has passed Exam FM/2 = 1

No student has passed more than one exam.

According to question, exactly three students from a randomly chose group of four students have not passed Exam P/1 or Exam FM/2.

So, Probability will be

$\frac{^6C_3\times ^2C_1}{^8C_4}\\\\=\frac{20\times 2}{70}\\\\=\frac{4}{7}\\\\=0.57$

Hence, there is probability of 0.57 chances that exactly three students from a group of four students have not passed Exam P/1 or Exam FM/2.

4 0

3 years ago

<img src="https://tex.z-dn.net/?f=%5Clongmapsto%5Csqrt%7B64%7D" id="TexFormula1" title="\longmapsto\sqrt{64}" alt="\longmapsto\s

natulia [17]

$\sqrt{64} = 2 \times 2 \times 2 \times 2 \times 2 \times 2$

$\sqrt{64} = 2 \times 2 \times 2$

$\sqrt{64} = 8$

<h3># Answered by Cutest Ghost..</h3>

7 0

3 years ago