Convert: 16 square kilometers to acres

Answers

Answer 1

Answer: 16 square kilometers is 3953.6861 acres.

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The function s(V) = describes the side length, in units, of a cube with a volume of V cubic units. Jason wants to build a cube with a minimum of 64 cubic centimeters.What is a reasonable range for s, the side length, in centimeters, of Jason’s cube?

Give the slope and y-intercept ofthe line.
slope = [?], y-intercept = [ ]
Enter the number that belongs in the green box.
Enter

Answers

Answer:

Slope = 2, y-intercept = 3

Step-by-step explanation:

I will be calculating the slope of the line using these two points: (-1, 1) and (0, 3)

Slope = $(rise)/(run)$

= $(3-1)/(0-(-1))$

= $(3-1)/(0+1)$

= 2

Based on the graph, the y-intercept is 3.

Lines that are parallel have the same slope or else no slope.

Answers

Lines that are parallel have the same slope.

Lines that have the same slope are parallel.

This true they must either have the same slope or no slope so that they will never cross each other

Given f(x)=10-2x find f(7)

Answers

Answer: -4

Step-by-step explanation: The equation is a simple function having two variables x and y. f(x) can also be written as y.

Therefore, another way to write a function is y = 10-2x.

The question requires you to insert the value of one variable and calculate the other. In this case you have to find the value of function when x=7.

Insert 7 in place of x. So, the equation will look as follows.

f(x) = 10 - 2*7

f(x) = 10 - 14

f(x) = -4

Therefore, when x=7 the value of our function f(x) is equal to -4.

f(7)=10-14=-4
Answer=-4

A student factors 15c^2 + c – 28 to the following.(c + 2)(15c – 14)

Which of the following statement about (c + 2)(15c – 14) is true?
A. The expression is equivalent, and it is completely factored.
B. The expression is equivalent, but it is not completely factored.
C. The expression is not equivalent, but it is completely factored.
D.The expression is not equivalent, and it is not completely factored.

Answers

The expression is not equivalent, but it is completely factored.

Answer : C. The expression is not equivalent, but it is completely factored.

$15c^2 + c - 28$ can be factored

15 * -28 = -420

21 and -20 are the factors whose sum is +1 and product is -420

$15c^2 -20c + 21c - 28$

$(15c^2 -20c) +(21c - 28)$

$5c(3c -4) + 7(3c - 4)$

$(5c+7)(3c -4)$

This is not equivalent to (c + 2)(15c - 14)

But (c + 2)(15c – 14) is completely factored

So , The expression is not equivalent, but it is completely factored.

You are travelling through a town at 50km/h and a ball rolls onto the road. how far do you travel (in metres) in this time.

Answers

Answer:

50000 m

Step-by-step explanation:

50km/h

It means that 1 hour can travelling 50 km

1km=1000m

50km=50000m

So 1hour can travel 50000m

There are 80
students in a speech contest. Yesterday,

1

4
of them gave their speeches. Today,

2

5
of the remaining students gave their speeches. How many students still haven't given their speeches?

Answers

yesterday, 1/4 of 80 =20 gave their speeches, so there are 80-20=60 students left.
Today, 2/5 of 60=24 students gave their speeches, so there are 60-24=36 students who still haven't give their speeches
another way to think of it is 80*(1- 1/4)*(1- 2/5)=80*(3/4)*(3/5)=36

Final answer:

To find the number of students who haven't given their speeches, subtract the number of students who have given their speeches from the total number of students. Yesterday, 14 students gave their speeches and today, 25 more students gave their speeches. So, there are 41 students who still haven't given their speeches.

Explanation:

To find the number of students who haven't given their speeches, we need to subtract the number of students who have given their speeches from the total number of students.

Yesterday, 14 students gave their speeches, so there are 80 - 14 = 66 students remaining.

Today, 25 students gave their speeches, so there are 66 - 25 = 41 students who still haven't given their speeches.

Learn more about Number of students remaining here:

brainly.com/question/37834213

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A ball is launched from a sling shot. Its height, h(x), can be represented by a quadratic function in terms of time, x, in seconds.After 1 second, the ball is 148 feet in the air; after 2 seconds, it is 272 feet in the air. Find the height, in feet, of the ball after 6 seconds in the air. I have no idea any help?