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AURORKA [14]
3 years ago
13

The AT&T phone company charges $.15 per minute for long distance calls. sprint phone company totals your phone usage of each

month and round the number of minutes up to the nearest 15 minutes and then charges $7.90 per hour of phone usage dividing discharge into 15 minute segments. you make five hours and three minutes worth of long distance calls this month while using the company with the lower price, how much will these calls cost?
Mathematics
1 answer:
Stells [14]3 years ago
4 0
Idky .. sorry I just need points
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What is the probability of the complement of rolling a number less than 5 by using a six sided dye
IrinaVladis [17]

Answer:

2/3

Step-by-step explanation:

Less than 5 is 1,2,3,4 and 4 out of 6 is also equal to 2/3

3 0
3 years ago
I need help ASAP pls
DochEvi [55]

Answer:

-38

Step-by-step explanation:

10 + 28 = 38 so to check it 10- (-38)=28

3 0
3 years ago
What is the volume of the right rectangular prism, in cubic centimeters?
True [87]

Answer:

108 units

Step-by-step explanation:

Volume = length × width × height

V = 4 × 3 × 9

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3 years ago
For what value of x will the function f(x) = -3(x - 10)(x - 4) have a maximum value? Find the maximum value.
gayaneshka [121]

Hello!

To find the maximum value of the function f(x) = -3(x - 10)(x - 4), the easiest way is to find the vertex using the formula: x = -b/2a.

Firstly, we need to simplify f(x).

f(x) = -3(x - 10)(x - 4)

f(x) = -3(x² - 14x + 40)

f(x) = -3x² + 42x + -120

Since the equation f(x) is now simplified to standard form, we can find the vertex.

a = -3, b = 42, and c = -120

x = -(42)/2(-3) = -42/-6 = 7

Then, we substitute 7 into the the function f(x) = -3(x - 10)(x - 4), or

f(x) = -3x² + 42x + -120, to find the y-value of the vertex.

f(x) = -3(7 - 10)(7 - 4)

f(x) = -3(-3)(4)

f(x) = 27

The vertex of f(x) is (7, 27).

Therefore, the maximum x-value for the function f(x) is 7.

4 0
3 years ago
Read 2 more answers
Please help it would be nice
Shtirlitz [24]

Answer:

d

Step-by-step explanation:

Soooo,

d = 2r

(29) = 2r

29/2 = 2r/2

14.5 = r

6 0
3 years ago
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