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4 years ago

If the combined area of the white and orange is 100π, what is the area of ONLY the orange region?

Mathematics

1 answer:

Likurg_2 [28]4 years ago

7 0

give us a picture of the question.

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Solve for n. Round to the tenths place, if necessary.

slega [8]

N = 14.4

so it would be "B"

24 x 5.85 = 140.4

9.75 x n = 9.75n

140.4/9.75 = 14.4
n=14.4

5 0

3 years ago

Two times a number r plus 6 is greater than - 24

Anit [1.1K]

-24 ∠ 2r + 6

-30 ∠ 2r

-15∠r

didnt completely understand the question but i hope this helps

3 0

3 years ago

I need help on number 16 these instructions say to solve these equations by cross multiplying

Grace [21]

Answer:

15. x = 4

16. a = 19

Step-by-step explanation:

"Cross multiply" essentially means "multiply both sides of the equation by the product of the denominators."

$\dfrac{x}{6}=\dfrac{2}{3}\\\\3(x)=6(2)\qquad\text{"cross multiply"}\\\\\boxed{x=4}\qquad\text{divide by 3}$

This is an example of a problem in which cross-multiplying introduces the need for an extra step: divide by 3. Had we simply multiplied by the denominator of the x-term, we would have been finished in one step:

x = 6(2/3) = 4

That is, rather than multiplying by the <em>product of the denominators</em>, sometimes the problem can be solved more easily if you multiply by their <em>least common multiple</em>.

$\dfrac{a+1}{a+5}=\dfrac{a-4}{a-1}\\\\(a-1)(a+1)=(a+5)(a-4)\qquad\text{"cross multiply"}\\\\a^2-1=a^2+a-20\qquad\text{simplify}\\\\\boxed{19=a}\qquad\text{add $20-a^2$}$

8 0

3 years ago

The depths of water, at the edge of a pier, at different times of day, are represented by the table below. Which of the followin

s344n2d4d5 [400]

The best answer is C) y=4.75 * cos(0.52x - 2.08) + 7.65

Unfortunately, the two only ways to solve this problem are to either graph all the options or plug in time values for x and see which agrees the most with the tide chart. Both are time-consuming, but I chose to graph each one with a graphing application.
Plugging in a few values for x confirms that C is the best function.
12pm (x=0)
y = 4.75 * cos(0 - 2.08) + 7.65
y = 5.334
2pm (x=2)
y= 6.5
4pm (x=4)
y=12.4
It is not a perfect representation, but the shape of the graph and closeness to the points given is the best of the four options provided.

4 0

4 years ago

Are the ratios 3:6 and 1:2 equivalent?

aalyn [17]

Answer:

yes these are equivalent bcz

3/6=1/2

Step-by-step explanation:

PlZ make me brainliest

3 0

3 years ago

Read 2 more answers