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Scorpion4ik [409]
3 years ago
10

Can someone answer this question please answer it correctly if it’s corect I will mark you brainliest

Mathematics
1 answer:
makkiz [27]3 years ago
6 0

hello again !

the answer is <em>3 temperature readings. </em>

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The function LaTeX: f\left(x\right)=-x^2+4f ( x ) = − x 2 + 4 defined on the interval LaTeX: -8\le x\le8− 8 ≤ x ≤ 8 is increasin
enyata [817]

Given:

The function is

f(x)=-x^2+4

It defined on the interval -8 ≤ x ≤ 8.

To find:

The intervals on which the function is increasing and the interval on which decreasing.

Step-by-step explanation:

We have,

f(x)=-x^2+4

Differentiate with respect to x.

f'(x)=-(2x)+(0)

f'(x)=-2x

For turning point f'(x)=0.

-2x=0

x=0

Now, 0 divides the interval -8 ≤ x ≤ 8 in two parts [-8,0] and [0,8]

For interval [-8,0], f'(x)>0, it means increasing.

For interval [0,8], f'(x)<0, it means decreasing.

Therefore, the function is increasing on the interval [-8,0] and decreasing on the interval [0,8].

7 0
3 years ago
What is the mean of 8,8,8,7,7,8,3
aleksley [76]
8 + 8 + 8 + 7 + 7 + 8 + 3 = 49
49 / 7 = 7
The mean is 7
7 0
3 years ago
Read 2 more answers
To make a green paint, Michelle mixes 4 cans of
Elena-2011 [213]

Answer: 16 cans

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6 0
2 years ago
Can someone please help me answer this last one for tonight thanks in advance
Bogdan [553]
Part a: the first cereal is y=7x and the second one is y=10x so they are $3 apart.

part b: y=7*4 (28) and y=10*4 (40) is $12  apart so she will save $12 each month.
4 0
3 years ago
<img src="https://tex.z-dn.net/?f=the%20%5C%3A%20angle%20%5C%3A%20of%20%5C%3A%20measure%20%5C%3A%20%20%5Cfrac%7B31%5Cpi%7D%7B6%7
Yakvenalex [24]

Answer:

3rd quadrant

Step-by-step explanation:

  • First we just convert the angle from radians to degrees
  • \frac{31\pi radians }{6}*\frac{180degrees}{\pi radians}  =\frac{31*180}{6} degrees=930degrees
  • Now that's too big, all this means is if we start rotating from the positive y-axis in a circle we will cross the starting point 2 times, 2 full circles;
  • 930degrees-360degrees=570degrees\\570degrees-360degrees=210degrees  
  • Now in which quadrant it 210 degrees?
  • 0 degrees to 90 degrees is 1st quadrant
  • 90 degrees to 180 degrees is 2nd quadrant
  • 180 degrees to 270 degrees is 3rd quadrant
  • 270 degrees to 360 degrees is 4th quadrant
  • So our answer is the 3rd quadrant.
7 0
3 years ago
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