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Genrish500 [490]

3 years ago

12

Officer brimberry wrote 24 tickets for traffic violations last week, but only 15 tickets this week. What is the percent decrease

?

1 answer:

uranmaximum [27]3 years ago

4 0

Answer:

-37.5%

Step-by-step explanation:

Percent change = ((New-old) / old) X 100

new - old = 15-24=-9

-9/24= -0.375

-0.375 X 100 =

-37.5%

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What is the missing number?<br> 700,000 + 8 +<br> + 40,000 = 740,028

Sedaia [141]

Answer:

700,000+ 8+20+ 40,000

Step-by-step explanation:

All you needed to do was line them up and find the missing value. Or add all of the given numbers and subract the answer. Quite simple actually

7 0

3 years ago

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The American Heart Association is about to conduct an anti-smoking campaign and wants to know the fraction of Americans over 33

Tpy6a [65]

Answer:

The estimate for the proportion of Americans over 33 who smoke is 0.28.

Step-by-step explanation:

Proportion of Americans over 33 who smoke.

Number who smoke divided by the size of the sample.

In this question:

Sample of 1267.

913 don't smoke, so 1267 - 913 = 354 smoke. Then

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3 years ago

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VashaNatasha [74]

Answer:

I think the answer is

Step-by-step explanation:

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3 years ago

A quadratic function is defined by

ella [17]

Answer:

1. The vertex of the graph of the function is (-4, 7)

2. The vertex represents a minimum value

3. The equation represented by the new graph is g(x) = (x + 4)² + 1

Step-by-step explanation:

The given quadratic function is given in vertex form, y = a·(x - h)² + k, as follows;

g(x) = (x + 4)² + 7

1. By comparing the given quadratic function and the vertex form of a quadratic equation, we have;

a = 1, h = -4, and k = 7

The vertex of the graph of the function, (h, k) = (-4, 7)

2. Given that a = 1 > 0, the graph of the quadratic function opens upwards and the vertex represents a minimum value

3. Shifting the graph 6 units down from where it is now will give;

The vertex = (h, k - 6) = (-4, 7 - 6) = (-4, 1)

h = -b/(2·a), k = (-b²/(4·a) + c = -a·h² + c

c = k + a·h²

Therefore, initial value of the constant term, c = -1×(-4)² + 7 = 23

After the shifting the graph 6 units down, c = 23 - 6 = 17

∴ k = 1 = -a·(-4)² + 17

∴ -16/16 = -1 = -a

a = 1

Therefore, the equation represented by the new graph is g(x) = (x + 4)² + 1.

5 0

3 years ago

What is<br> is 1/4 + 9/10y -3/5y +7/8 written in simplest form?

Leviafan [203]

Answer:

Step-by-step explanation:

$\frac{1}{4}+\frac{9}{10}y - \frac{3}{5}y+\frac{7}{8}\\\\=\frac{1}{4}+\frac{7}{8}+\frac{9}{10}y-\frac{3}{5}y\\\\$

Combine like terms. 1/4 and 7/8 are like terms and LCD of 4 and 8 is 8

9/10y and -3/5y are like terms and LCD of 10 , 5 is 10

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3 years ago

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