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malfutka [58]
3 years ago
9

Find the slope of the line that passes through Point A $$(​−5,7) and Point B $$(2,5), using the formula $$m=

Mathematics
1 answer:
tester [92]3 years ago
8 0

Answer:

slope = - \frac{2}{7}

Step-by-step explanation:

Calculate the slope m using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (- 5, 7 ) and (x₂, y₂ ) = (2, 5 )

m = \frac{5-7}{2-(-5)} = \frac{-2}{2+5} = - \frac{2}{7}

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the graph below plots a function f x if x represents time the average rate of change of the function f x in the first three seco
Vinvika [58]

Answer:

-50

Step-by-step explanation:

rate of change = slope so you were asked for the slope between the point in which x = 0 (0,150) and the point in which x=3 (3,0)

Here is how you calculate it:

https://simplisico.com/share/q/ZAHw5oFz9yYoOV0BmMRwQI9U

4 0
3 years ago
A street has parallel curbs 40 feet apart. A crosswalk bounded by two parallel stripes crosses the street at an angle. The lengt
andreev551 [17]

Answer:

The distance, in feet, between the strip = 12 feet.

Step-by-step explanation:

From the figure attached in relation with the question, we can deduce that crosswalk is a parallelogram where

CD/AB = CE/AE

CD = 40

CE = 50

AE = 15

Let AB = x

50x = 15 × 40

X = 12

 The distance, in feet, between the strip is therefore 12 feet

6 0
3 years ago
the probability that an international flight leaving the united states is delayed in departing (event d) is .36. the probability
melomori [17]

Answer:

                     \large\boxed{\large\boxed{0.36}}

Explanation:

This is a typical problem of conditional probability.

In this case you know:

  • the probability of the event D <em>(an international flight leaving the U.S. is delayed in departing</em>), which is 0.36 and you can write as P(D) = 0.36

  • the probability of event P <em>(an international flight leaving the U.S.  is a transpacific flight</em>), which is 0.25 and you can write as P(P) = 0.25;

  • the joint probability of event P and D (<em>international flight leaving the U.S. is a transpacific and is delayed in departing</em>), which is 0.09 and you can write as P (P ∩ D) = 0.09.

You need to determine the <em>probability that an international flight leaving the United States is delayed given that the flight is a transpacific flight</em>, i.e. the conditional probability P (D/P).

Hence, use the formula for conditional probability:

  • P (D/P) = P (D ∩ P) / P(D) = P (P ∩ D) / P (D)

  • P (D/P) = 0.09 / 0.25 = 0.36
5 0
4 years ago
What is the solution to this system of linear equations?
Eva8 [605]
8x+y=3
-8x -8x
--------------
y=-8x+3

7x-2y=-6
-7x -7x
------------------
-2y=-7x-6
----- -------
-2 -2
y=7/2x+3

Substitute -8x+3 in place of y
-8x+3=7/2x+3
+8x +8x
-----------———
3= 11.5x+3
-3 -3
———————
0 = 11.5x
—— ——
11.5 11.5

X=0

8x+y=3
8(0)+y=3
0+y=3
y=3

Check
8(0)+3=3
7(0)-2(3)=-6
0-6=-6

Answer is choice B
3 0
4 years ago
What's the answer? please help
Mkey [24]

Answer:

it's 3.

Step-by-step explanation:

10-4/5-3

6/2

3..

5 0
3 years ago
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