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Lunna [17]
4 years ago
8

Pls help it due ASAP. Please show workings It due in a hour....

Mathematics
1 answer:
castortr0y [4]4 years ago
5 0

Answer:

C. \frac{4}{5}

Step-by-step explanation:

In order to find the slope knowing two points, use the slope formula \frac{y_2 - y_1}{x_2-x_1}. x_1 and y_1 represent the x and y values of one point the line intersects, and x_2 and y_2 represent the x and y values of another point the line intersects.

Knowing this, use the points (-4, -4) and (6, 4) for the formula. Substitute -4 for x_1, -4 for y_1, 6 for x_2, and 4 for y_2. Then, simplify:

\frac{(4) - (-4)}{(6) - (-4)} \\= \frac{4+4}{6+4} \\= \frac{8}{10} \\= \frac{4}{5}

Thus, \frac{4}{5} is the slope of the line.

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A model rocket is launched with an initial upward velocity of 47 ms. The rocket's height (in meters) after seconds is given by t
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Answer:

0.61 or 8.79

Step-by-step explanation:

h = 47t − 5t²

27 = 47t − 5t²

5t² − 47t + 27 = 0

Quadratic formula:

t = [ -b ± √(b² − 4ac) ] / 2a

t = [ -(-47) ± √((-47)² − 4(5)(27)) ] / 2(5)

t = (47 ± √1669) / 10

t ≈ 0.61 or 8.79

8 0
4 years ago
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mr Goodwill [35]
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3 years ago
A set of points that form a line are called a _ _ _ _ _ _ _ _ _ _ _ _ _ pattern.
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A set of points that form a line are called a linear pattern
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Which inequality is graphed below?
krok68 [10]

ANSWER

y  \geqslant  \frac{1}{4} x - 1

EXPLANATION

The graph has a solid boundary line.

The region above the boundary line is shaded

Therefore the inequality sign involved is '≥'

The boundary line has equation

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We can now conclude that, the inequality graphed above is

y  \geqslant  \frac{1}{4} x - 1

7 0
3 years ago
Read 2 more answers
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