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3 years ago

What is the circumference of a circle if the radius is 4?

Mathematics

2 answers:

inysia [295]3 years ago

6 0

Answer:

25.1cm

Step-by-step explanation:

since circumference = $\pi$ d and d=2r

c= $\pi$ (2*4)

c=8 $\pi$

c=25.132741229

c=25.1cm

artcher [175]3 years ago

6 0

Answer:

90.8

Step-by-step explanation:

cercumference=πD

r=2×D

C=90.8

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A paddle boat can move at a speed of 2 km/h in still water. The boat is paddled 16 km downstream in a river in the same time it

MaRussiya [10]

<span>going downstream -

t = 14/(2 + v)

going upstream -

t = 7/(2 - v)

14/(2 + v) = 7/(2 - v)

(2 + v)/2 = 2 - v

v = 2/3km/h</span><span>
</span>

6 0

3 years ago

HELPPPPPPPPPP

mrs_skeptik [129]

Answer:

5 1/3 gallons

Step-by-step explanation:

Equation: 8 1/6 - 2 5/6

8-2=6

1/6-5/6= -4/6

6-4/6=5 2/6

Simplify:

5 1/3 gallons

7 0

3 years ago

A cylinder can hold 450 inches of water. How many cubic inches of water can a cone that has a congruent base and equal height to

Paladinen [302]

Answer:

150 cubic inches of water

Step-by-step explanation:

volume of a cylinder = πr²h

Volume of a cone 1/3(πr²h)

π = 22/7

r = radius

volume of a cone = $\frac{1}{3}$ x Volume of a cylinder

450 / 3 = 150 in³

7 0

3 years ago

P= $1,000, t= 6, r= 11%, compounded annually (k = 1)

kobusy [5.1K]

Answer: well if p= $1000 and t=6 and r-11 % then 6k+11=1000 then 11- 1000 is 6k=989 divide 6/ 164.83 i think

Step-by-step explanation:

8 0

3 years ago

A) 5xy ×? = 15x²y² can someone explain

Aleksandr [31]

Answer:

$5xy*3xy=15x^2y^2$

Step-by-step explanation:

Multiply 5*3 to get 15, and each x and y is squared, so 5xy needs another set of x and y to have two xs and ys in the final expression, so you multiply $5xy$ by $3xy$ to get your answer.

If I helped, I would love a brainliest!

5 0

3 years ago