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Artist 52 [7]
3 years ago
15

Please answer 1, 2, and 3. WILL GIVE BRAINLIEST. WORTH 18 POINTS

Mathematics
2 answers:
alukav5142 [94]3 years ago
6 0

9514 1404 393

Answer:

  1. 7
  2. -1 2/3
  3. 4

Step-by-step explanation:

The average rate of change of a function f(x) on interval [a, b] is the slope of the line through points (a, f(a)) and (b, f(b)). The slope formula tells you that is ...

  m = (f(b) -f(a))/(b -a)

1) The rate of change in the interval [1, 2] is ...

  rate of change = (2³ -1³)/(2 -1) = (8 -1)/1 = 7

__

2) rate of change = ((√4 -8) -(√1 -2))/(4 -1) = (-6-(-1))/3 = -5/3

__

3) rate of change = (11 -(-1))/(5 -2) = 4

Katarina [22]3 years ago
3 0

Answer:

8

-5

12

Step-by-step explanation:

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I need help on this and more so can sb help me ?..
nignag [31]

Answer:

Its the 2nd one

Step-by-step explanation:

Simplify the exponents and then multiply

4 0
3 years ago
Another one please help
n200080 [17]
-- The area of the long skinny piece on top is (6 x 33) = 198

-- The length of the dotted line between the top and bottom pieces is (33-21) = 12

-- The area of the bottom  piece is (12 x 15) = 180

-- The area of the whole thing is (198 + 180) = 378

-- The perimeter of the whole thing is (33 + 6 + 21 + 15 + 12 + 15 + 6) = 108
6 0
3 years ago
2sin^2 2x=2<br><br> In the domain [0, 2pi)
djverab [1.8K]
Please type this as 2(sin 2x)^2=2      <span>2sin^2 2x=2 is confusing.

Reducing this expression:  (sin 2x)^2 = 1

Taking the sqrt of both sides, sin 2x = plus or minus 1

If sin 2x = 1, then 2x must be pi/2 or 3pi/2, and so x must be pi/4 or 3pi/4.

Now you do this for sin 2x = -1.</span>
8 0
3 years ago
Zara walked 3/4 mile in 30 minutes. How long will it take her to walk 2 miles?
Talja [164]

Answer:

80 minutes

Step-by-step explanation:

(3/4)/30=2/x

cross product

30*2=(3/4)x

60=3/4x

x=60/(3/4)

x=(60/1)(4/3)

x=240/3

x=80

5 0
3 years ago
6=a/4+6 I need the answer for math please
tangare [24]

Answer:

a = 60

Step-by-step explanation:

4 + 6 = 10

6 = a/10

10*6 = 60

6 = 60/4+6

Hope this helps!

8 0
2 years ago
Read 2 more answers
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