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4 years ago

Find the value of f(-3) for the function below.

Mathematics

1 answer:

Softa [21]4 years ago

4 0

Answer:

B) 2

Step-by-step explanation:

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Which hill is steeper?

Stella [2.4K]

Answer:

B. A hill that rises 2 feet for every 15 feet of run.

Step-by-step explanation:

The two must have COPs. We'll narrow them down.

For A, we divide 10 by 2.

$\frac{10}{2} = 5.$

For B, we divide 15 by 2.

$\frac{15}{2} = 7.5.$

B has the larger number, so it is B.

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3 years ago

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drek231 [11]

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4 years ago

Helpppppp for a free cookie

Alex

Answer:

18 square units because units is not described

Step-by-step explanation:

trigonometric fit:

when one side of a triangle is 3 and the other side of the triangle is 4, the big side is 5. so in this case, the dashed line means 3.

3 times 4 equals area of rectangle which is 12

3 times 4 divided by a 2 which is 6 is the half rectangle

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3 years ago

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The equation ℎ = −162 + 32 + 9 gives the height of a ball, h, in feet above the ground, at t seconds after the ball is thrown up

Maru [420]

Answer:

time = 1secs

Max height = 25metres

Step-by-step explanation:

Let the equation that models the height of the ball be expressed as;

h(t) = −16t^2 + 32t + 9

t is the time in seconds

The velocity of the ball at its maximum height is zero i.e dh/dt = 0

dh/dt = -32t + 32

0 = -32t + 32

32t = 32

t = 32/32

t = 1 seconds

The ball will reach its maximum height after 1 seconds.

Get the maximum height reached. Substitute t = 1 into the modeled function;

h(t) = −16t^2 + 32t + 9

h(1) = −16(1)^2 + 32(1) + 9

h(1) = −16 + 32 + 9

h(1)= 16+9

h(1) = 25

Hence the maximum height reached is 25metres

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3 years ago

Which equation represents the line that passes through the points (-4, 0) and (0, 6)

skad [1K]

Answer:

y = 1.5x + 6

Step-by-step explanation:

Given the following data;

Points on the x-axis (x1, x2) = (-4, 0)

Points on the y-axis (y1, y2) = (0, 6)

To find the equation of line;

First of all, we would determine the slope of the line.

Mathematically, slope is given by the formula;

$Slope = \frac{Change \; in \; y \; axis}{Change \; in \; x \; axis}$

$Slope, m = \frac {y_{2} - y_{1}}{x_{2} - x_{1}}$

Substituting into the equation, we have;

$Slope, m = \frac {6 - 0}{0 - (-4)}$

$Slope, m = \frac {6}{4}$

Slope, m = 1.5

To find the equation of line, we would use the following formula;

y - y1 = m(x - x1)

Substituting into the formula, we have;

y - 0 = 1.5(x - (-4))

y = 1.5x + 6

5 0

3 years ago