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Gelneren [198K]
3 years ago
11

Which pair of slopes show that line AD is perpendicular to line BC?

Mathematics
1 answer:
grigory [225]3 years ago
6 0

Answer:

7,1/7

Step-by-step explanation:

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On Monday, the Dairy Barn sold 14 waffle cones for every 6 sugar cones. On Tuesday, the Dairy Barn sold 7 waffle cones for every
dimulka [17.4K]

Answer:

Option b

Step-by-step explanation:

To represent this proportion using fractions, let the numerators be the number of waffles sold and denominator, the number of sugar cones.

Thus, the proportion that can be used to represent the cone sales is

14/6 = 7/3

3 0
3 years ago
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The height 'h' (in feet) of a ball in a baseball game can be modeled by h = -16t² + 28t + 8 , where 't' is the time (in seconds)
lidiya [134]

Answer:

  a)  No. t < 0 is not part of the useful domain of the function

  b) 2.0 seconds

Step-by-step explanation:

a) A graph of the function is shown below. It shows t-intercepts at t=-0.25 and t=2.0. We presume that t is measured forward from some event such as the ball being thrown or hit. The model's predicted ball location has no meaning prior to that event, when values of t are negative.

__

b) It is convenient to use a graphing calculator to find the t-intercepts. Or, the equation can be solved for h=0 any of several ways algebraically. One is by factoring.

  h = 0 = -16t² +28t +8 . . . . . . . . . . . . the ball hits the ground when h = 0

  0 = -4(4t² -7t -2) = -4(4t +1)(t -2)

This has t-intercepts where the factors are zero, at t=-1/4 and t=2.

The ball will hit the ground after 2 seconds.

4 0
3 years ago
What is the answer for this question
stich3 [128]
Inscribed ..........
5 0
3 years ago
20x3/5=<br> A. 15<br> B. 14<br> C. 13<br> D. 12
MrRa [10]
20 x 3/5

60/5 = 12

D. 12
7 0
3 years ago
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hammer [34]
<span>B)It is possible, but very unlikely.</span>
7 0
3 years ago
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