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Dmitrij [34]
3 years ago
11

I need help with #13

Mathematics
1 answer:
Marizza181 [45]3 years ago
5 0
40 ft of 60% (.6) = 24ft

Area- 24(40)=960ft
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Corey can read 45 pages in 15 mins. At this rate, how many pages can he read in 2 hours?
a_sh-v [17]
15 minutes is 1/4 of an hour
How many 15 minutes are in 2 hours?
There are 8 so:
45 x 8 = 360
360 pages
7 0
3 years ago
Read 2 more answers
What is 2/3 - 5/6 divided by 3/4
il63 [147K]
Exact form: -4/9
Decimal form: -0.4
4 0
2 years ago
Hey i need help with number 8 and 9 thanks!
snow_lady [41]

Answer:

8     9.8 - 6.4n

9      15 - j/2

Step-by-step explanation:

8

2.8 - 4.4n - 2n +7

= 2.8+7 -4.4n -2n

= 9.8 - 6.4n

9

11 + (-3) - 1/8 j - 3/8 j +7

= 11 - 3 - 1/8 j - 3/8 j + 7

= 11 - 3 + 7 - 1/8 j - 3/8 j

= 15 - 4/8 j

= 15 - j/2

5 0
3 years ago
What is the probability of getting 1 or 5 if a dice is thrown once?
dezoksy [38]

Answer: %16.6

Step-by-step explanation:

there is 6 numbers on a dice

8 0
3 years ago
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On what intervals is the graph of f(x)=x^3-2x^2+5x+1 increasing?
amid [387]
f(x)=x^3-2x^2+5x+1\\ f'(x)=3x^2-4x+5\\
3x^2-4x+5=0\\\Delta=(-4)^2-4\cdot3\cdot5=16-60=-44
\Delta0 \Rightarrow the graph of the parabola is above the x-axis, so the derivative is always positive and therefore the initial function is increasing in its whole domain.

f(x)=0.5x^2-6\\
f'(x)=x
The function is decreasing when its first derivative is negative. The first derivative of this function is negative for x so for x\in(-\infty,0) the function is decreasing.

f(x)=\dfrac{x+1}{x-1}\qquad(x\not=1)\\
f'(x)=\dfrac{x-1-(x+1)}{(x-1)^2}=-\dfrac{2}{(x-1)^2}
The function is increasing when its first derivative is positive. The first derivative of this function is always negative therefore this function is never increasing.


3 0
4 years ago
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