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Black_prince [1.1K]
3 years ago
14

Find the slope of the line passing through (-2,5) and (9,-7)?

Mathematics
1 answer:
Marat540 [252]3 years ago
8 0
Use the slope formula.
Y2 - Y1 / X2 - X1
(-7 - 5) / (9 - -2)
(-12) / (11)
So answer: slope(m) = -12/11
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The scale on a map that 5 centimeters = 2 kilometers
spin [16.1K]
So that is what we call a ratio and it looks like this
\frac{5cm}{2km} \\
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3 years ago
If y(x) = 4x, what is x when y(x) = 4? <br><br> a.2<br> b.1.<br> c.4<br> d.0
zavuch27 [327]

Answer:

b. 1

Step-by-step explanation:

Step 1: Define

y(x) = 4x

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Step 2: Substitute and Evaluate

4 = 4x

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8 0
3 years ago
A garden table and a bench cost $750 combined. The cost of the garden table is two times the cost of the bench. What is the cost
AleksandrR [38]
The bench costs $250.
6 0
3 years ago
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An airplane descends during the last hour of it's flight to prepare for landing. It's altitude changes at an average of -0.15 km
Natalija [7]

Answer:

-.15 km/ minute * 60 minutes

-9 km

Step-by-step explanation:

The rate is -.15 km per minute

We have 60 minutes

distance = rate  times time

change in elevation is the same as the distance change

change in elevation = -.15 km/ minute * 60

   change in elevation =-9 km

8 0
3 years ago
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Given the parametric equations, x = 2t + 5 and y = 3t^2 - 1, find the point on the graph at time, t = 4.
Tpy6a [65]

Answer: (13, 47)

The expression t = 4 means that 4 units of time have come off the clock (possibly 4 seconds). Plug this value into each equation given for x and y

x = 2*t + 5 = 2*4 + 5 = 8 + 5 = 13

y = 3*t^2 - 1 = 3*4^2 - 1 = 3*16 - 1 = 48 - 1 = 47

In short, if t = 4 then it leads to x = 13 and y = 47 at the same time. These x and y values pair up to get the final answer (13,47)

8 0
3 years ago
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