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Svetllana [295]
3 years ago
15

IF ANYBODY IS GOOD WITH CIRCLES HELP! HELP I NEED HELP WITH CIRCUMFERENCE!! What is the radius of a circle with circumference of

50 cm? Round your answer to the nearest whole number. Use π = 3.14.
A. 4 cm
B. 3 cm
C. 8 cm
D. 7 cm
Mathematics
2 answers:
amm18123 years ago
6 0

Answer:

The accurate number is 7.961 but round that up to 8

Dmitrij [34]3 years ago
5 0

Answer:

7.96 cm or rounded, it is C. 8

Step-by-step explanation:

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Which of the following is not a true statement about pi?
FinnZ [79.3K]

Answer:

Option D.The ratio of the radius of a circle to its circumference

Step-by-step explanation:

<em>Verify each statement</em>

A) The ratio of the circumference of a circle to its diameter

The statement is True

Because

C=\pi D

so

\pi=C/D

B) Approximated to be 3.14

The statement is True

Because \pi=3.14159265...

C) Approximated to be 22/7

The statement is True

Because

\frac{22}{7}=3.1423

D) The ratio of the radius of a circle to its circumference

The statement is not True

Because

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

4 0
3 years ago
If f(x) = 3x + 2, what is f(5)?​
MrRa [10]

Answer:

f(5) = 17

Step-by-step explanation:

plug in 5 in the x so 3(5)+2 =17

5 0
3 years ago
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Find the equation of the line through (6,8) which is parallel to the line y=4x−6.
Ratling [72]

Answer:

y=4x-16

Step-by-step explanation:

Hi there!

<u>What we need to know:</u>

  • Linear equations are typically organized in slope-intercept form: y=mx+b where m is the slope of the line and b is the y-intercept (the value of y when x is 0)
  • Parallel lines always have the same slope

<u>1) Determine the slope (m)</u>

<u />y=4x-6<u />

4 is in the place of m, making it the slope. Because parallel lines have the same slope, the slope of the line is therefore 4. Plug this into y=mx+b:

y=4x+b

<u>2) Determine the y-intercept (b)</u>

y=4x+b

Plug in the given point (6,8) and solve for b

8=4(6)+b\\8=24+b

Subtract 24 from both sides to isolate b

8-24=24+b-24\\-16=b

Therefore, the y-intercept of the line is -16. Plug this back into y=4x+b:

y=4x-16

I hope this helps!

3 0
3 years ago
Using the Multiplication Property of -1
Papessa [141]

A. -(a+5)

Because the negative sign is outside the parenthesis, multiplying by -1 just removes the negative sign:

-(a+5) * -1 = a+5


B. -(-x+31)

Apply the distributive property:

-(-x+31) becomes (- -x +31) which simplifies to (x+31)

multiply that by -1 to get -x+31


C. -(4x+12)

Because the negative sign is outside the parenthesis, multiplying by -1 just removes the negative sign:

-(4x+12) * -1 = 4x+12

7 0
4 years ago
ANSWER ASAP!
morpeh [17]

Answer:

vvvvvcvv

Step-by-step explanation:

5 0
3 years ago
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