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HACTEHA [7]
2 years ago
7

Fre e points come and get em

Mathematics
2 answers:
Pie2 years ago
4 0

Answer:

Thank you so much!

Sonbull [250]2 years ago
3 0
First person here!!!!!!!!!
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Find the missing side. Round to the nearest tenth. <br>A.7.4<br>B.4.4<br>C.6.4<br>D.5.4​
Nutka1998 [239]

Answer:

option D

Step-by-step explanation:

take 39 degree as reference angle

using cos rule

cos 39 = adjacent / hypotenuse

0.77 = x / 7

x = 7*0.77

x = 5.39

x = 5.4

4 0
3 years ago
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If you knew that two angles were comlementary and were given the measure of one of those angles, would you be able to find the m
Mnenie [13.5K]

Answer:

Yes, any pair of complementary angles add up to 90 degrees. By simply using 90-x you can find the other angle.

3 0
2 years ago
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Geometric mean is used to determine the scale of objects.<br><br> False<br><br> True
Ann [662]
The answer to this question is true
7 0
3 years ago
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Y = x - 1
romanna [79]

Answer: The correct answer is the third option, (-3,-4).

Step-by-step explanation: You plug in 2x + 2 for y, given that y = 2x + 2.

2x+2 = x - 1

x = -3

Now, you plug in -3 for x in an equation.

y = -3 - 1

y = -4.

(-3, -4)

4 0
2 years ago
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A car's position is given by s(t) = {3 – 5t? + 7t hundreds of meters with t in minutes.
Nadya [2.5K]

Answer:

A) (1 s, 2.3 s)

B) (-4 m/s², 3.8 m/s²)

Step-by-step explanation:

The car's position which is the distance is given by the equation;

s(t) = t³ - 5t² + 7t

A) Velocity is the first derivative of the distance. Thus;

v(t) = ds/dt = 3t² - 10t + 7

At v = 0, we have;

3t² - 10t + 7 = 0

Using quadratic formula, we have;

t = 1 and t = 2.3

Thus, time at velocity of 0 is t = (1 s, 2.3 s)

B) acceleration is the derivative of the velocity. Thus;

a(t) = dV/dt = 6t - 10

At velocity of 0, we got t = 1 and t = 2.3

Thus;

a(1) = 6(1) - 10 = -4 m/s²

a(2.3) = 6(2.3) - 10 = 3.8 m/s

Thus, a(t) at v = 0 gives; (-4 m/s², 3.8 m/s²)

8 0
3 years ago
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