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3 years ago

The radius of a circle is 7 cm what is the area

Mathematics

2 answers:

Anna007 [38]3 years ago

7 0

Answer:

153.94 cm²

Step-by-step explanation:

Area of circle = πr² = π(7)² = 49π = 153.94 cm²

ser-zykov [4K]3 years ago

4 0

Answer:

7^2 = 49

49 x 3.14 = 153.86

Step-by-step explanation:

Formula of an Area of a circle:

pi(3.14 or 22/7 or whatever they tell you to use for pi) x radius squared

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Name each polynomial 4m^2-5m+6 18s-7 6p^3

faltersainse [42]

Answer:

Quadratic function

linear function

cubic function

Step-by-step explanation:

5 0

3 years ago

An older person is 8 years older than seven times the age of a younger person. The sum of their ages is 32. What are their ages?

tatiyna

Answer:

there ages are 29 and 3 years old

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2 years ago

Milton makes trail mix for his hiking group he makes a 1 and 1/4 pound of peanuts 14 oz of raisins 12 oz of walnuts in 10 oz of

strojnjashka [21]

Answer:

Each hiker receives 7 ounces of trail mix

Step-by-step explanation:

Trail mix=quantity of peanuts+quantity of raisins+quantity of walnuts+quantity of chocolate chips

where;

Quantity of peanuts=1.25 pounds

Quantity of raisins=14 oz, since 1 pound=16 oz.

Quantity of raisins=(14/16)=0.875 pounds

Quantity of walnuts=12 oz=(12/16)=0.75 pounds

Quantity of chocolate chips=10 oz=(10/16)=0.625 pounds

Replacing;

Trail mix=(1.25+0.875+0.75+0.625)=3.5 pounds

Trail mix=Quantity per hiker×Number of hikers

where;

Trail mix=3.5 pounds

Quantity per hiker=q

Number of hikers=8

Replacing;

3.5=q×8

q=3.5/8=0.4375 pounds

I pound=16 ounces

q=0.4375×16=7 ounces

Each hiker receives 7 ounces of trail mix

8 0

3 years ago

a culture started withwith 2,000 bacteria. after 6 hours, it grew to 2,200 bacteria. predict how many bacteria will be present a

Vilka [71]

I think the answer is 2,400

6 0

3 years ago

Banabas must pay his ex-wife an amount of R350 000 in two years’ time. Calculate the amount that he must invest today to have th

White raven [17]

Answer:

He must invest R297 521 today.

Step-by-step explanation:

The compound interest formula is given by:

$A(t) = P(1 + \frac{r}{n})^{nt}$

Where A(t) is the amount of money after t years, P is the principal(the initial sum of money), r is the interest rate(as a decimal value), n is the number of times that interest is compounded per year and t is the time in years for which the money is invested or borrowed.

Banabas must pay his ex-wife an amount of R350 000 in two years’ time.

This means that $t = 2, A(t) = 350000$