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garik1379 [7]
3 years ago
5

Lena skied downhill at a steady speed on a 3 mile slope she reached the bottom of the slope in 1/4 hour Lena wants to know her s

peed in miles per hour
Mathematics
1 answer:
gulaghasi [49]3 years ago
3 0

Answer:

first question : 3 / 1/4 ( 3 over 1/4 )

second : 3/1/4 = 12

Step-by-step explanation:

i dont know, i just got it right on iready

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What is the slope line perpendicular to the equation 4x+3y=9
aleksandrvk [35]

Answer:

m=3/4

Step-by-step explanation:

first, let's put the line 4x+3y=9 from standard form (ax+by=c) into slope-intercept form (y=mx+b)

we have the equation 4x+3y=9

subtract 4x from both sides

3y=-4x+9

divide by 3

y=-4/3x+3

perpendicular lines have slopes that are negative and reciprocal. If the slopes are multiplied together, the result is -1

so to find the slope of the line perpendicular to the line y=-4/3x+3, we can take the slope of y=-4/3x+3 (-4/3) multiply it by a variable (this is our unknown value), and have that set to -1

(m is the slope value)

-4/3m=-1

multiply by -3/4

m=3/4

therefore the slope of the perpendicular line is 3/4

hope this helps!! :)

7 0
3 years ago
The cost of a game that was p dollars with a 15% off coupon online plus $1.99 for shipping
Shtirlitz [24]
(p - 0.15p) + 1.99

This is the equation to solve.

p minus 15% of p, plus 1.99 for shipping costs.
8 0
3 years ago
THIS IS A TEST AND I REALLY NEED HELP SO CAN YALL HELP ME ASAP
Ivanshal [37]

Step-by-step explanation:

a. x = 30° (180-70-80)

b. <FGA = 80°

c. vertical angles

4 0
3 years ago
Two of the opposite vertices of a square have the coordinates (4, - 4) and ( - 3, 3) respectively as shown on the grid below. Wh
iogann1982 [59]

Answer:

(4 , 3 ) and (-3 , -4)

Step-by-step explanation:

Other two vertices will be in 1st quadrant and 3 rd quadrant

6 0
3 years ago
Which rational expression has a value of 0 when x = -2?
katrin [286]
The answer is D. 2x - 4/x^2- 4
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