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2 years ago

How do I solve this step by step

Mathematics

1 answer:

Rom4ik [11]2 years ago

6 0

They are both drawn as right angled triangles so if we can constract them then they should obey pythagoras theorem

First traingle:- 8^2 = 64
7^2 + 6^2 = 49 + 36 = 85 so this does not obey the theorem and you cant draw it.

Second traingle: 9^2 = 81 and 5^2 + 7^2 = 25 + 49 = 75 so we cant draw that one either.

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A football is kicked from the ground and follows the graph of the function y = –t2 + 3t, where y represents height and t represe

vesna_86 [32]

Answer:

The height of the objects are the same after 2 seconds.

Step-by-step explanation:

In order to calculate at which time both objects have the same height we need to find the value of t that makes both equations equal. Therefore:

$-t^2 + 3t = -t + 4\\t^2 - 3t - t + 4 = 0\\t^2 - 4t + 4 = 0\\t_{1,2} = \frac{-(-4) \pm \sqrt{(-4)^2 - 4*1*4}}{2*1} = \frac{4 \pm \sqrt{16 - 16}}{2}\\t_{1,2} = \frac{4}{2} = 2$

The height of the objects are the same after 2 seconds.

8 0

2 years ago

What the slope of(7,3) (6,-2)

antoniya [11.8K]

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$slope = \frac{ - 2 - 3}{6 - 7} \\$

$slope = \frac{ - 5}{ - 1} \\$

$slope = 5$

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6 0

2 years ago

An airplane pilot over the Pacific sights an atoll at an angle of depression of 10°. At this time, the horizontal distance from

Alex17521 [72]

The question was posted incomplete.

This is the part missing:

<span>What is the height of the plane to the nearest meter?

Answer: 559 m.

Explanation:

1) The horizontal distance between the plane and tha atoll makes a right triangle with the height, with the depression angle between the two legs.

2) Therefore, you can use the tangent trigonometric ratio:

tan(10°) = opposite-leg / adyacent-leg = height / horizontal distance

⇒ height = horizontal distance × tan (10°)

⇒ height = 3,172 m × tan(10°) = 559.31 m, which rounded to the nearest m is 559
</span>

6 0

2 years ago

When solving the equation x/5 - 12 = 10, what is your last step?

Fittoniya [83]

Answer:

A multiply by 5

Step-by-step explanation:

x/5-12=10

x/5=10+12

x/5=22

multiple each side by 5

x=22*5

4 0

2 years ago

Answer the following:<br>a) 3x 8 + 2 x 5 =<br>b) 3* (8 + 2)* 5 =

vlada-n [284]

Answer:

a . 34

b. 150

Step-by-step explanation:

in the second case firstly add the number in bracket and multiply both the number given

in 1st case first multiply

then add both the product

5 0

2 years ago

Read 2 more answers