1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Tema [17]
2 years ago
7

Jolly measured the cake. Then she calculated that it has a circumference of 15cm. what is the cake's diameter? Use 3.14 for pi.

Mathematics
1 answer:
Hatshy [7]2 years ago
6 0

Answer:

4.76cm

Step-by-step explanation:

Given data

circumference= 15cm

The expression for circumference is

C= 2πr

substitute and solve for r

15= 2*3.14*r

r= 15/ 2*3.14

r=15/ 6.28

r= 2.38 cm

Hence the diameter is

D= 2r

D= 2*2.38

D=4.76cm

You might be interested in
Which action is not a step in using paper folding to find the midpoint of a line
dedylja [7]

Answer:

A. Draw a line from the segment to any point on the fold line.

Step-by-step explanation:

When using the paper folding method to find the midpoint of a line segment we take the following steps:

  1. Draw a line segment on the tracing paper
  2. Fold the tracing paper so that the endpoints lie on top of each other
  3. Mark the intersection of the fold and the segment with a point

These steps include statements B, C, and D. Drawing a line from the segment to any point on the fold line, which is statement A,  is not included in these steps because it is not needed.

Thus, choice A is not a step in using paper folding to find the midpoint of a line segment.

5 0
3 years ago
If f(x)=2x-7, then find f(8)​
Artyom0805 [142]

It should be 9. I hope this helps. If it's not 9 then can u please give me a list of your answers to choose from.

5 0
3 years ago
there are 28 tables in the cafeteria.each table has 12 students sitting at it.fourth graders sit at 13 of the yables.fifth grade
Darya [45]
Hope this helps!

28 - 13 = 15
15 x 12 = 180 Fifth graders
6 0
3 years ago
4 times x with an exponent of 2 plus 2 times y with an exponent of 4. X=-3 y=2
Digiron [165]

Answer:

Step-by-step explanation:

Your equation is: 4*x^{2} +2 * y^{4}

You also know that x = -3 and y = 2. You can rewrite the equation by substituting x and y with their actual values:

4*(-3)^{2} +2 * 2^{4}

First, you want to do the exponentiation (meaning you want to calculate (-3)^{2} and 2^{4} parts). (-3)^{2} equals 9 and 2^{4} equals 16.

So the equation now is:

4*9+2*16

Now you want to do multiplication. 4*9 equals 36 and 2*16 equals 32. So you're left with:

36+32

Which equals 68.

8 0
2 years ago
Graph the inequality.<br> y &gt; |x-2| -5
Neporo4naja [7]

Here is the graph! I hope this helps!

3 0
2 years ago
Other questions:
  • A solid has faces that consist of 5 congruent squares and 4 congruent equilateral triangles. The solid has 9 vertices. How many
    15·1 answer
  • Flora made 7 withdrawals of $75 each from her bank account. What was the overall change in her account ?
    9·2 answers
  • An object is dropped off a building that is 144 feet tall. After how many seconds does the object hit the ground? (s = 16t^2)
    5·1 answer
  • Amanda’s hair grew 3/4 in. in 1 1/2 months? How long did her hair grow in one month?
    11·1 answer
  • Find the volume of the figure. Use 3.14 for pi
    13·1 answer
  • if a sprinter runs are distance of hundred metres in 9.83 seconds calculate the speed in kilometre per hour​
    13·1 answer
  • Find the measure of one interior angle for the following regular polygon
    13·1 answer
  • I don’t understand I need help ‍♀️
    12·2 answers
  • g An article reported the results of a survey of 400 elementary school teachers and 500 high school teachers. Of the elementary
    11·1 answer
  • Find the following measures of central tendency for the given set of data.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!