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2 years ago

Calculate the average speed for the following sections on the graph.

Mathematics

2 answers:

Temka [501]2 years ago

5 0

Answer:

a to b is 20m/s I'm in k12 and I got the same question but I don't know for c to d yet

Step-by-step explanation:

A =0

B=200

T=10s

200 divided by 10 is 20m/s

and for the question at the bottom, the answer is c bc c to d is accelerating

Dimas [21]2 years ago

3 0

Answer:

A to B = 2000 m/s

C to D = 30,000m/s

Step-by-step explanation:

A to B is 10secs and the distance is 200m so you multiply them and you get 2000m/s

C to D is 60secs and the distance is 500m so you multiply and you get 30,000m/s

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zaharov [31]

Answer : 72 blocks

To find the answer, you have to find the volume of the prism. To find the volume you multiply the length, width, and height.

6 x 3 x 4 = 72

This gives you 72 blocks.

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3 years ago

Which expression is equivalent to 83⋅ 8−7

Dafna11 [192]

Next time add an image, but know that the expression is equal to 657 since..

83 * 8 -7

Use PEMDAS

664 - 7

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3 years ago

Read 2 more answers

1. Triangle XYZ has vertices at X (2, -1), Y (-4, -1), and Z (2, 2). The triangle will be dilated by a scale factor of 4. What w

sweet-ann [11.9K]

Answer:

Can’t right. Now

Step-by-step explanation:

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3 years ago

Find a and b so that f(x) = x^3 + ax^2 + b will have a critical point at (2,3).

Digiron [165]

Using the critical point concept, it is found that a = -3 and b = 7.

<h3>What are the critical points of a function?</h3>

The critical points of a function are the values of x for which:

$f^{\prime}(x) = 0$

In this problem, the function is:

$f(x) = x^3 + ax^2 + b$

Hence, the derivative is:

$f^{\prime}(x) = 3x^2 + 2ax$

Then:

$f^{\prime}(x) = 0$

$3x^2 + 2ax = 0$

$x(3x + 2a) = 0$

$x = 0$

$3x + 2a = 0$

$3x = -2a$

$x = -\frac{2a}{3}$

Since the critical point is at x = 2, we have that:

$-\frac{2a}{3} = 2$

$-2a = 6$

$2a = -6$

$a = -3$

Then:

$f(x) = x^3 - 3x^2 + b$

Critical point at (2,3) means that when $x = 2, y = 3$ , then:

$3 = 2^3 - 3(2)^2 + b$

$8 - 12 + b = 3$

$b = 7$

You can learn more about the critical point concept at brainly.com/question/2256078

4 0

2 years ago

Pls pls help!!!!!!!!!!

netineya [11]

9514 1404 393

Answer:

Step-by-step explanation:

Let f represent the number of friends. Their total earnings are ...

21f = 105

f = 105/21 = 5 . . . . . divide by the coefficient of f

There are 5 friends in the group.

5 0

3 years ago