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Evgesh-ka [11]
3 years ago
10

Select all ratios equivalent to 30:6

Mathematics
1 answer:
Korolek [52]3 years ago
3 0

Answer:

60 : 12

90 : 18

120 : 24

150 : 30

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<
ratelena [41]

For the first interval (-1, 2), f(-1) = f(2), which means that the average rate of change on that interval is zero, so the correct option is A.

<h3>Over which interval the rate of change is zero?</h3>

For a function f(x) we define the average rate of change over the interval (a, b) is defined as:

R = (f(b) - f(a))/(b - a)

Here the function is:

f(x) = x^2 - x  -1

And the rate of change will be zero on an interval (a, b) if and only if:

f(b) = f(a).

Notice that the first interval is (-1, 2)

f(-1) = (-1)^2 - (-1) - 1 = 1 + 1 - 1 = 1

f(2) = 2^2 - 2 - 1 = 4 - 2 - 1  =1

Then f(-1) = f(2), which means that the average rate of change on that interval is zero, so the correct option is A.

If you want to learn more about average rate of change:

brainly.com/question/23483858

#SPJ1

4 0
2 years ago
Find the following, giving your answers
stellarik [79]

Answer:

  a) 301.6 cm³

  b) 188.5 cm²

Step-by-step explanation:

The volume and lateral surface area of the cone can be found using the given dimensions with the given formulas. All that is needed is to substitute the appropriate values and do the arithmetic.

__

<h3>a) volume</h3>

The volume is given by the formula ...

  V = 1/3πr²h

The dimensions are given on the diagram: r = 6 cm, h = 8 cm. Using these values in the formula, we find the volume to be ...

  V = 1/3π(6 cm)²(8 cm) = 96π cm³ ≈ 301.6 cm³

The volume of the cone is about 301.6 cm³.

__

<h3>b) area</h3>

The lateral area of the cone is given by the formula ...

  A = πrl

The dimensions are given on the diagram: r = 6 cm, l = 10 cm (the slant height). Using these values in the formula, we find the area to be ...

  A = π(6 cm)(10 cm) = 60π cm² ≈ 188.5 cm²

The area of the curved surface is about 188.5 cm².

4 0
2 years ago
Describe a real world situation that can be modeled by the equation 8.35x=4.25x+36.90
exis [7]
Lets reduce the equation.  

8.35x = 4.25x + 36.90 
8.35x - 4.25x = 36.90
4.10x = 36.90

X = 9 

1 bag a of assorted fruit cost $4.10 how much will it cost if I want to buy 9 bags of assorted fruit. 

3 0
3 years ago
In the diagram, figure 1 is the pre-image. Label figures 2, 3, and 4 with the type of transformation used to create each figure.
yKpoI14uk [10]
For the reflection and rotation
6 0
3 years ago
Charlie does the following problem:
Alika [10]
The answer is B. He is incorrect because he should have only 5 factors of 3.
7 0
2 years ago
Read 2 more answers
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