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
artcher [175]
2 years ago
9

The diameter of a circle is 14cm. Which TWO statements are correct? A

Mathematics
1 answer:
Reika [66]2 years ago
3 0

Answer:

(a) and (e)

Step-by-step explanation:

Given

d = 14cm

Required

Select the true statements

First, is a statement about the area.

The area is calculated as:

Area= \pi*\frac{d^2}{4}

So, we have:

Area= 3.14*\frac{14^2}{4}

Area= 3.14*49

(a) is true

Next, is a statement about the circumference.

This is calculated as:

C = \pi d

So, we have:

C = 3.14 * 14

(e) is true

You might be interested in
Simon pays $9 for 6 visits to swim at the community pool. He pays $18 for 12 visits to swim. How much does it cost for each visi
sergij07 [2.7K]

Answer:

$1.50

Step-by-step explanation:

If you do cost per quantity you would get $9 over 6 visits. Then you divide both sides by 6 because to get to one by 6 it's 6 so when you divide both sides by 6 you would get 1.5 over 1 and all you do is add a zero because you're dealing with money

Hope this helps :)

8 0
3 years ago
if a chocolate cake is divided into six equal and each has 280 calories, how many calories are in the whole cake
Contact [7]

Answer:

1680

Step-by-step explanation:

280 x 6 = 1680

3 0
2 years ago
Solve for z -9(d+z)=-2z+59
neonofarm [45]
-9(d+z)=-2z+59\\\\\text{Use multiply distributive property:}\\a\cdot(b+c)=ab+ac\\\\-9d-9z=-2z+59\ \ \ |+9d\\\\-9z=-2z+59+9d\ \ \ |+2z\\\\-7z=59+9d\ \ \ \ |:(-7)\\\\\boxed{z=-\dfrac{59+9d}{7}}

7 0
3 years ago
Read 2 more answers
A square is cut in half on the diagonal creating two equal triangles each triangle has an area of 0.72 square units what is the
Katyanochek1 [597]

In a square all 4 sides are equal, so when you cut it along the diagonal to make a triangle, both the base and the height of the triangle would be the same.


The area of a triangle is found by the formula 1/2 x base x height

Since the base and height are the same the formula becomes Area = 1/2 x S^2 ( where S is the length of a side).

The area is given as 0.72 square units.

Now you have 0.72 = 1/2 x S^2

First multiply both sides by 2:

1.44 = S^2

To find S, take the square root of both sides:

S = √1.44

S = 1.2

The side length is 1.2 units.

7 0
3 years ago
For the following pair of functions, find (f+g)(x) and (f-g)(x).
ch4aika [34]

Given:

The functions are

f(x)=4x^2+7x-5

g(x)=-9x^2+4x-13

To find:

The functions (f+g)(x) and (f-g)(x).

Solution:

We know that,

(f+g)(x)=f(x)+g(x)

(f+g)(x)=4x^2+7x-5-9x^2+4x-13

(f+g)(x)=(4x^2-9x^2)+(7x+4x)+(-5-13)

(f+g)(x)=-5x^2+11x-18

And,

(f-g)(x)=f(x)-g(x)

(f-g)(x)=(4x^2+7x-5)-(-9x^2+4x-13)

(f+g)(x)=4x^2+7x-5+9x^2-4x+13

(f+g)(x)=(4x^2+9x^2)+(7x-4x)+(-5+13)

(f-g)(x)=13x^2+3x+8

Therefore, the required functions are (f+g)(x)=-5x^2+11x-18

and (f-g)(x)=13x^2+3x+8.

7 0
3 years ago
Other questions:
  • Sara has a loan for $1800 at a rate of 16% annually. How much interest will she pay in 4 years?
    14·1 answer
  • A line has a slope of
    15·2 answers
  • How to solve the problem 3.2d-4d=2.3d+3
    5·1 answer
  • A closed container has 4.02 ⋅ 1023 atoms of a gas. Each atom of the gas weighs 1.67 ⋅ 10^−24 grams. Which of the following shows
    15·2 answers
  • (a^2-b)^3
    12·1 answer
  • Molly’s dad measures her height to be 62 3/8 inches. Six months later, he measures her height again. He says she has grown 1 3/4
    8·1 answer
  • Find the value of 7xº - (6x)".
    15·2 answers
  • HELP QUICK PLSSSSSS Distribute 8(4+x)
    10·2 answers
  • Help if you can<br> Please no links or false answers
    14·2 answers
  • Determine whether each pair of expressions is equivalent. Show your work. <br> 2(x-y) and 2x - 2y
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!