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Aneli [31]
3 years ago
15

The stopping distance d of an automobile is directly proportional to the square of its speed s.

Mathematics
1 answer:
IRINA_888 [86]3 years ago
3 0

Answer:

192 feet is the stopping distance at 48 mph.

Step-by-step explanation:

Set up the proportion     \frac{x}{75} =\frac{48^{2} }{30^{2} }    

x/75 = 2304/900   cross multiply  to get 900x = 172800

172800 ÷ 900 = 192

x = 192

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3 years ago
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Solve<br> plz -4p-2r-15p
IrinaVladis [17]

Answer:

-2r-19p

Step-by-step explanation:

-4p-2r-15p

add like terms

-2r-19p

3 0
3 years ago
Find the rule.
mezya [45]

The <em>first</em> series uses a <em>linear</em> function with - 1 as <em>first</em> element and 1 as <em>common</em> difference, then the rule corresponding to the series is y = |- 1 + x|.

The <em>second</em> series uses a <em>linear</em> function with - 3 as <em>second</em> element as 2 as <em>common</em> difference, then the rule corresponding to the series is y = |- 3 + 2 · x|.

<h3>What is the pattern and the function behind a given series?</h3>

In this problem we have two cases of <em>arithmetic</em> series, which are sets of elements generated by a condition in the form of <em>linear</em> function and inside <em>absolute</em> power. <em>Linear</em> <em>functions</em> used in these series are of the form:

y = a + r · x      (1)

Where:

  • a - Value of the first element of the series.
  • r - Common difference between two consecutive numbers of the series.
  • x - Index of the element of the series.

The <em>first</em> series uses a <em>linear</em> function with - 1 as <em>first</em> element and 1 as <em>common</em> difference, then the rule corresponding to the series is y = |- 1 + x|.

The <em>second</em> series uses a <em>linear</em> function with - 3 as <em>second</em> element as 2 as <em>common</em> difference, then the rule corresponding to the series is y = |- 3 + 2 · x|.

To learn more on series: brainly.com/question/15415793

#SPJ1

7 0
1 year ago
How does 1/8 divided by 1/4 equal 1/2?
photoshop1234 [79]
When you divide a fraction by a fraction, you're really just multiplying by a reciprocal. A reciprocal is the fraction flipped around.
So, 1/8 <span>÷ 1/4 is the same thing as 1/8 x 4/1
Now, you just multiply. 1 times 4 is 4. 8 times 1 is 8.
1/8 x 4/1=4/8
4/8 simplified is 1/2
So that is how 1/8</span><span>÷1/4=1/2</span>
6 0
3 years ago
For every pizza erics family ate, Eric ate 2 of the 8 pizzas, write the ratio of the total number of pieces Eric ate to the tota
andreev551 [17]

Answer:

1:4

Step-by-step explanation:

5 0
3 years ago
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