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4 years ago

Circle A is shown with a central angle marked 30 degrees and the radius marked 5 inches.

Mathematics

2 answers:

anyanavicka [17]4 years ago

7 0

The area for a sector of a circle is $A=\frac{\theta}{360}*\pi r^2$ . If our angle is 30 and our radius is 5, that fits in like so: $A=\frac{30}{360}\pi (5)^2$ . It appears that the first choice is what we want except you forgot to square all the radii.

Ivanshal [37]4 years ago

5 0

Answer:

everyone the first guy is right its A

Step-by-step explanation:

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All the correct answers please

poizon [28]

B, A, D is the answer

3 0

3 years ago

F(x)=5^x if F(-2) what does this equal

KengaRu [80]

Answer:

$\frac{1}{25}$

Step-by-step explanation:

Using the rule of exponents

$a^{-m}$ = $\frac{1}{a^{m} }$ , hence

f(- 2) = $5^{-2}$ = $\frac{1}{5^{2} }$ = $\frac{1}{25}$

3 0

3 years ago

at a clothing store, levi's jeans are on sale for 40% off. sales tax is 7%. which expression will calculate the total cost of le

aleksandrvk [35]

Given:

Discount = 40%

Sales tax = 7%

To find:

The total cost of levi jeans with an original price of x.

Solution:

Let x be the original price of the jeans. Then the price after 40% discount is

$Price=x-40\%\text{ of }x$

$Price=x-\dfrac{40}{100}x$

$Price=x-0.4x$

$Price=0.6x$

The price after 7% of sales tax.

$Price=0.6x+7\%\text{ of }0.6x$

$Price=0.6x+\dfrac{7}{100}\times 0.6x$

$Price=0.6x+0.042x$

$Price=0.642x$

Therefore, the total cost of the levi jeans with an original price of x is represented by the expression 0.642x.

4 0

3 years ago

if 62% percent of people voted in a community of about 55,200 eligible voters how many people were registerd

solniwko [45]

62% of 55,200...turn ur percent to a decimal..." of " means multiply
0.62(55,200) = 34,224 <==

although, just because u r registered, does not mean u vote.

6 0

3 years ago

Find the circumference of a circle r=9

kvasek [131]

Answer:

254.34

Step-by-step explanation:

You first have to know the formula which is

$c = \pi \: {r}^{2}$

You multiply 9 by 9 which gives you 81.

$c = \pi \times 81$

pi equals 3.14

so 3.14 × 81 = 254.34

3 0

3 years ago