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4 years ago

What is the slope of the line in the graph?4th possible answer is 4/3----بنام

Mathematics

1 answer:

Delvig [45]4 years ago

6 0

Answer: Second option.

Step-by-step explanation:

The slope of a line can be calculated with this formula:

$m=\frac{y_2-y_1}{x_2-x_1}$

Then, you need to choose two points of the line shown in the graph and substitute them into the formula for calculate the slope:

Let's pick the points (-4,4) and (4,-2).

Substituting:

$m=\frac{-2-4}{4-(-4)}$

Simplifiying, you get that the slope of the line in the graph is:

$m=\frac{-2-4}{4-(-4)}\\\\m=\frac{-6}{4+4}\\\\m=\frac{-6}{8}\\\\m=-\frac{3}{4}$

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Physics

Andrej [43]

Answer:

a) Josef jogging from A to B;

i. speed = 2 m/s

ii. velocity = 2m/s

a) a) Josef jogging from A to C;

speed = 1.9 m/s

ii. velocity = 2.2 m/s

Step-by-step explanation:

One major difference between speed and velocity is that speed is a scalar quantity, while velocity is a vector quantity.

a) Josef jogging from A to B;

distance = 300 m

time = 2.5 seconds = 150 seconds

i. his average speed = $\frac{distance}{time}$

= $\frac{300}{150}$

= 2 m/s

ii. his average velocity = $\frac{displacement}{time}$

= $\frac{300}{150}$

= 2 m/s

b) Josef jogging from A to C,

distance = 300 + 100 = 400 m

time = 2.5 + 1 = 3.5 minutes

= 210 seconds

i. his average speed = $\frac{distance}{time}$

= $\frac{400}{210}$

= 1.9 m/s

ii. his average velocity = $\frac{\sqrt{V_{1} ^{2} + V_{2} ^{2} } }{2}$

$V_{1} ^{2}$ = 4 m/s

$V_{2} ^{2}$ = 1.9 m/s

his average velocity = $\frac{\sqrt{4^{2} + 1.9^{2} } }{2}$

= 2.2 m/s

5 0

3 years ago

: Đẳng thức nào sau đây đúng ?<br> A. cos4x – sin4x = 2-cos2x B. cos4x – sin4x = 1+2sin2x

Mazyrski [523]

Step-by-step explanation:

A. cos4x-sin4x=2-cos2x

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3 years ago

Factor the expression shown below completely.

alexira [117]

Answer:D. 2(3x-5)^2

Step-by-step explanation:

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3 years ago

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The length of a rectangle is 2 inches more than its width. The perimeter of the rectangle is 24 inches. The equation 2x + 2(x +

alexandr1967 [171]

2x + 2(x + 2) = 24
2x + 2x + 4 = 24
4x = 24 - 4
4x = 20
x = 20/4
x = 5

The value of x that holds true for the equation is : x = 5.
So the width of the rectangle is 5 inches and the length is (x + 2 = 5 + 2) = 7 inches

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4 years ago

The net of a square pyramid is shown below:

Anit [1.1K]

Surface area = 2 x 2 + 4 x 1/2 x 2 x 5
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2 years ago

What is the slope of the line in the graph?4th possible answer is 4/3----بنام​

What is the slope of the line in the graph?4th possible answer is 4/3----بنام