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vovangra [49]
3 years ago
10

Word problem: Ms.Perez often gives a short one problem quiz during her 48 minute class. If a student is out of the room at the t

ime of the quiz, they will miss that grade. Natalia was 15 minutes late for class, what is the probability that she missed the start of the quiz?
Mathematics
1 answer:
shepuryov [24]3 years ago
8 0
1/15 because it’s 1 in every 15 minutes.
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A town has a population of 12000 and grows at 3.5% every year. What will be the population after 7 years, to the nearest whole n
Setler79 [48]

Answer:

15,267

Step-by-step explanation:

To solve this problem, lets use the exponential growth formula which is:A = P(1+r)^t

A = total amount

P = original amount

r = growth rate (decimal)

t = years

<u>Before we plug in the values, don't forget to change 3.5% to its decimal form.</u>

3.5% -> \frac{3.5}{100} -> 0.035

Lets plug in the values:

A=12,000(1+0.035)^7

A=15,267

The population after 7 years will be 15,267.

8 0
3 years ago
Passes through (1,12) and has a vertex (10,-4)
agasfer [191]

Answer: 16/81 (x-10)^2 -4

Step-by-step explanation:

To write a vertex equation with just a point and the vertex, you have to figure out the variables.

In vertex form, the equation is y = a (x-h)^2 + k

Your y is 12, x = 1, h = 10, and k = -4

Plug everything into equation

12 = a (1 - 10)^2 -4

12 = a (-9)^2 - 4

12 = 81a - 4

16 = 81a

16/81 = a

Now you know what the 'a' value is.

If you graph 16/81 (x-10)^2 -4 , you will get a point at (1,12) and a vertex of (10,-4)!

I hope this helps!

3 0
3 years ago
Which expressions are equivalent to 7b(3+c) ?
aliya0001 [1]
C because it's using the distributive property. It's breaking it down into sections.
8 0
3 years ago
I WILL give brainliest promise
ella [17]
Perimeter = 26 Explanation: count the sides of the shape then add them all
8 0
2 years ago
The amount $180.00 is what percent greater than $135.00? 
sergiy2304 [10]

Answer:

Its Option C

Step-by-step explanation:

The difference is 180 - 135 = $45

So  it is 45 * 100 / 135  

= 33.33% greater

4 0
2 years ago
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