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dolphi86 [110]
3 years ago
13

at noon the teparature was 4'C.Over the next two hours the temparature dropped another 11 degrees .then every hour until 4:00 th

e temparature rose 2 degrees.What was the temparatureat 4:00
Mathematics
1 answer:
Katena32 [7]3 years ago
5 0
Temperature at 4:00 was -3’C

Explanation
4-11= -7 (temp at 2:00)
-7+2= -5 (temp at 3:00)
-5+2= -3 (temp at 4:00)
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3 0
3 years ago
Read 2 more answers
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Luba_88 [7]

Answer:

x=0 y=0

Step-by-step explanation:

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3 0
3 years ago
Find the average value of f over region
SVETLANKA909090 [29]
D is a right triangle with base length 1 and height 8, so the area of D is \dfrac12(1)(8)=4.

The average value of f(x,y) over D is given by the ratio

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The denominator is just the area of D, which we already know. The average value is then simplified to

\displaystyle\frac74\iint_Dxy\,\mathrm dA

In the x,y-plane, we can describe the region D as all points (x,y) that lie between the lines y=0 and y=8x (the lines which coincide with the triangle's base and hypotenuse, respectively), taking 0\le x\le1. So, the integral is given by, and evaluates to,

\displaystyle\frac74\int_{x=0}^{x=1}\int_{y=0}^{y=8x}xy\,\mathrm dy\,\mathrm dx=\frac78\int_{x=0}^{x=1}xy^2\bigg|_{y=0}^{y=8x}\,\mathrm dx
=\displaystyle56\int_{x=0}^{x=1}x^3\,\mathrm dx
=14x^4\bigg|_{x=0}^{x=1}
=14
3 0
3 years ago
Which of the following is the reciprocal of x2-2x-8
Lemur [1.5K]
It would be 1 / (x + 2) (x - 4)
4 0
4 years ago
Tina has put 15 of her old CDs in a storage crate. How many more CDs can she store in the crate if it can hold no more than 23 C
Lerok [7]
23-15=8 I think the answer is 8


6 0
4 years ago
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