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hjlf
2 years ago
15

Rewrite each equation in slope-intercept form, if necessary. Then determine whether the lines are parallel. Explain,

Mathematics
1 answer:
Oksana_A [137]2 years ago
8 0
Answer:
d

Step-by-step explanation:

Slope intercept form: y = mx + b

y = -x + 7
x + y = 21

x + y = 21
-x -x
y = -x + 21


y = -x + 7
y = -x + 21

Parallel lines have the same slope. Here, our slope is -1

Therefore, our final answer is d.


Hope this helps!
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Each week, Rosario drives to an ice-skating rink that is 60 miles away. The round-trip takes 2.75 hours. If he averages 55 miles
vazorg [7]

Answer:

The answer to your question is x = 4d/t - S1

Step-by-step explanation:

Data

total time = t = 2.75 hours

Initial speed = S1 = 55 mi/h

Final speed = x

distance = d = 60 mi

Formula

speed = distance / time

Average speed = (Initial speed + final speed)/2  or

                          = (S1 + x)/2

Substitution

                             (S1 + x)/2 = 2(d) / t

Solve for x

                             x = (2d/t)2 - S1

Simplification and result

                              x = 4d/t - S1

3 0
3 years ago
Complete the following to describe how to draw to diagram to represent the answer 3÷3/5
OverLord2011 [107]

Answer:

you can do a diagram representing this product by drawing a box with six squares and then putting three lines for each box and divide 3÷3 and you will get 5

6 0
3 years ago
How do I find the period of y = -2 cos 0.5x
nevsk [136]
Use the form (bx-c)+ d to find the amplitude , period shift, phase, and vertical shift.
amplitude:2 
period:12.56637061
phase shift : 0(0to the right ) 
vertical shift:0 
hope it helps!
please give me brainlest if its right .
thank.
4 0
3 years ago
Q ÷ 2 -qp ÷ 6; let p = -6 and q = 10
ozzi

Answer:

15

Step-by-step explanation:

1. Plug in the values.

q=10

p=-6

10÷2-(10)(-6)÷6

2. Use PEMDAS.

10÷2+60÷6

5+10

15

5 0
3 years ago
The lenghts of two sides of. a triangle are 12cm and 15cm.between what two measures should be the length of the third side fall?
maw [93]

Answer:

m,

Step-by-step explanation:

5 0
2 years ago
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