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Sholpan [36]
3 years ago
6

Dagne measures and finds that she can do a vertical jump that is 27.5% of her height. If Dagne is 48 inches tall, how high can s

he jump? Enter your answer in the box.
Mathematics
1 answer:
larisa [96]3 years ago
6 0

Answer:

She can jump 13.2 inches.

Step-by-step explanation:

In order to compute how high Dagne can jump we must find how much is 27.5% of 48 inches. We can do that by applying a rule of three, where 48 inches is to 100% as x inches is to 27.5%. In this case x will be the height of her jump. So we have:

48 inches -> 100%

x inches  -> 27.5%

x = (48*27.5)/100 = 13.2 inches

She can jump 13.2 inches.

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Slope-intercept form:  y = mx + b

(m is the slope, b is the y-intercept or the y value when x = 0 --> (0, y) or the point where the line crosses through the y-axis)

For lines to be parallel, they need to have the same slope.

To find the slope (m), use the slope formula:

m=\frac{y_2-y_1}{x_2-x_1}      And plug in the two points

(-2, 7) = (x₁, y₁)

(4, -5) = (x₂, y₂)

m=\frac{y_2-y_1}{x_2-x_1}

m=\frac{-5-7}{4-(-2)}   (two negative signs cancel each other out and become positive)

m=\frac{-5-7}{4+2}

m=\frac{-12}{6}     Simplify the fraction

m = -2        

The slope is -2, so the parallel line's slope is also -2.

Your answer is C

3 0
3 years ago
A 1 km long train travelling at a speed of 60km/h enter a tunnel 1km long. What time will the train take to come out of the tunn
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Answer:

2 minutes

Step-by-step explanation:

The front of the train enters the tunnel and travels 1 km before the rear of the train enters the tunnel.  Thus, the total distance traveled by the front of the train is 2 km, and this is covered in a certain number of hours:

Since distance = rate times time, time = distance / rate.  In this particular case we have:

                                              2 km

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3 0
2 years ago
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Alex787 [66]

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a

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4 0
3 years ago
Find (f -9)x).<br> f(x) = -3x + 2<br> g(x)= x2
algol13

Answer:

29 and -18

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f(x)= -3x+12

f(-9)= -3(-9)+2

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f(-9)= 29

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g(-9)= -18

7 0
3 years ago
A quadrilateral is dilated by a scale factor of 2. It's original side measures are 7, 14, 21, and 28.
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