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SVETLANKA909090 [29]
3 years ago
8

Two similar triangles ABC and PQR are shown

Mathematics
1 answer:
PolarNik [594]3 years ago
3 0

Answer:

i think it's c:r

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Find the value of x in the questions?
tino4ka555 [31]

Answer

10

Step-by-step explanation:

5 0
3 years ago
An arrow is launched upward with a velocity of 192 feet per second from the top of a 95-foot stage. What is the maximum height a
Shalnov [3]

9514 1404 393

Answer:

  671 feet

Step-by-step explanation:

There are a couple of ways to figure this. One is to use a sort of shortcut equation to find the distance traveled (d) by an object when subject to some initial velocity (v) and acceleration (a). Here the acceleration due to gravity is -32 ft/s².

  v² = 2ad

  d = v²/(2a) = (192 ft/s)^2/(2·32 ft/s²) = 576 ft

This height is in addition to the starting height of 95 ft, so the arrow's maximum height is ...

  max height = 95 ft + 576 ft = 671 ft

__

Another way to work this problem is to start with the equation for ballistic motion. Filling in the given initial velocity and height, we have ...

  h(t) = -16t^2 +192t +95

The time the arrow reaches the maximum height is the time representing the axis of symmetry of the parabola:

  t = -(192)/(2(-16)) = 6

Then the maximum height is ...

  h(6) = -16·6^2 +192·6 +95 = 671

The maximum height is 671 feet.

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<em>Additional comment</em>

For the standard-form quadratic ...

  y = ax^2 +bx +c

The axis of symmetry is ...

  x = -b/(2a)

6 0
3 years ago
The Esteban family will order one T-shirt for each person who attends their family reunion. The cost is $6.50 per T-shirt plus a
Ilia_Sergeevich [38]
You plug in 2000 for c
Then u subtract 35 from 2,000 and get 1,965
Then u divide 1,965 by 6.5 and u get 302.3 but your actual answer is 302 T-shirts

Answer: 302 T-shirts
6 0
3 years ago
Can someone plz help me I’m being timed!!
Whitepunk [10]

Answer:

25

I hope i got it in time :)

6 0
2 years ago
Read 2 more answers
Graph a line that contains the point (6, -5) and has a slope of -2/3.
Lapatulllka [165]

We know that the equation of the line is in the form y=-\frac{2}{3}x+b. To find b, we can use the fact that (6,-5) lies on the line, meaning that both sides of the equation are equal when x=6 and y=-5.

-5=-\frac{2}{3}(6)+b\\-5=-4+b\\b=-1

Hence, the equation of the line is y=-\frac{2}{3}x-1, and its graph looks something like follows.

8 0
1 year ago
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