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lesya [120]
3 years ago
9

convert the following into percentage. 1)2.98. 2)7/36. 3)3is to 4/5. d)7.35.​

Mathematics
1 answer:
Gre4nikov [31]3 years ago
4 0
298% 19.4% 80% 735%
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7. Rose can type 70 words per minute (wpm). At this rate, how many words can she type in 30 minutes? a. 3100 wpm b. 40 wpm c. 21
Irina-Kira [14]

Answer:

a. 3100 wpm

1 \: minute = 70 \: words \\ 30 \: minutes  = (30 \times 70) \: words \\  = 2100 \: words

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3 years ago
How do you find absolute extrema for a function?<br> f(x)= (8+x)/(8-x); Interval of [4,6]
Mkey [24]
\bf f(x)=\cfrac{8+x}{8-x}\implies \cfrac{dy}{dx}=\stackrel{quotient~rule}{\cfrac{1(8-x)-(8+x)(-1)}{(8-x)^2}}\implies \cfrac{dy}{dx}=\cfrac{16}{(8-x)^2}

now, we get critical points from zeroing out the derivative, and also from zeroing out the denominator, but those at the denominator are critical points where the function is not differentiable, namely a sharp spike or cusp or an asymptote.

so, from zeroing out the derivative we get no critical points there, from the denominator we get x = 8, but can't use it because f(x) is undefined.

therefore, we settle for the endpoints, 4 and 6,

f(4) =3    and      f(6) = 7

doing a first-derivative test, we see the slope just goes up at both points and in between, but the highest is f(6), so the absolute maximum is there, while we can take say f(4) as the only minimum and therefore the absolute minumum as well.
3 0
3 years ago
(Multiple choice question) As a town geta mater, the population of its high school decreases by 123. each year. The student body
Art [367]

Answer:

4 years !

Step-by-step explanation:

7 0
2 years ago
Jean bought a bag of candy that contained red candies, green candies, and brown candies. Some candies are marked with a smile an
lana66690 [7]
                   | Red    |Green  | Brown   Total
<span>Smile         |0.100  | .300    | .10           0.50</span>
<span>No smile   |0.200  | .150    | .15            0.50
Total           0.30       0.45      0.25         1.00

The probability of choosing red candy is 0.10
The probability of choosing no smile candy is 0.50

The probability of choosing red or no smile = 0.10 + 0.50 = 0.60

I did not use 0.30 as the probability of red because it included the no smile candy. It should only be red candy that has a smile.</span>
6 0
3 years ago
Read 2 more answers
What is the surface area of a ball with a diameter of 8 inches?
asambeis [7]
SA=4pir^2
d/2=r
8/2=4
r=4
SA=4pi4^2
SA=4pi16
SA=64pi in^2
if want, aprox pi=3.14
SA=200.96 in^2
3 0
3 years ago
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