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Juliette [100K]
3 years ago
13

I WILL MARK BRAINLIEST!!! !! (picture included with 1 question ^^^^^)

Mathematics
1 answer:
Serga [27]3 years ago
4 0

Answer:

A.

Step-by-step explanation:

you can buy a negative amount of packages so that rules out B and D

C is wrong because you know you need to buy at least one package, so h cannot be zero, and all real numbers include zero

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A construction crew built 7 1/2 miles of road in 3 1/8 days.
Amiraneli [1.4K]
2 2/5 per day I’m pretty sure ( 3 1/8 / 7 1/2)
8 0
3 years ago
Read 2 more answers
Laney and Maka are tutors. Laney charges $10 for travel expenses plus $32 per hour of tutoring. The dollar amount Maka charges c
dezoksy [38]

Answer: Total amount earned by Laney in 4hour=$138

Total amount earned by Maka in 4hours=$134

Difference =$4

Step-by-step explanation:

Since

Maka charges can be modeled by the equation F=30h+14,

where h =number of hours that Maka tutors

F = the total amount earned. Following same model

With 14 being the charge in dollar for travel expenses.

Laney charging $10 for travel expenses plus $32 per hour of tutoring can also be represented as

F= 32h +10

Such that total amount earned by

Maka in 4hours gives

F=30h+14

F=30x4 +14

F=120+14=$134

In the same vein the total amount earned by Laney in 4hours gives

F=32h+10

F= 32x4+10

F=128+10=$138

The difference in money earned by Laney and Maka = $138-$134= $4

7 0
2 years ago
If f(x) = 3x22, evaluate afI: ()k=1
Korolek [52]

Step 1: Write out the function given

f(x)=3x^2-x

Step 2: Interprete the question given

\sum ^5_{k\mathop=1}f(\frac{k}{2})

The question requested we find the summation of the first five terms for f(k/2), when k is 1, 2, 3, 4, and 5

Step 3: Find the expression for f(k/2)

\begin{gathered} f(\frac{k}{2})=3(\frac{k}{2})^2-\frac{k}{2} \\ =\frac{3k^2}{4}-\frac{k}{2} \\ =\frac{3k^2-2k}{4} \end{gathered}\begin{gathered} =\frac{3(1)^2-2(1)}{4}+\frac{3(2)^2-2(2)}{4}+\frac{3(3)^2-2(3)}{4}+\frac{3(4)^2-2(4)}{4}+\frac{3(5)^2-2(5)}{4} \\ =\frac{1+8+21+40+65}{4} \\ =\frac{135}{4} \\ =33.75 \end{gathered}

Hence, the answer is 33.75

5 0
11 months ago
A 28-year-old man pays $181 for a one-year life insurance policy with coverage of $150,000. If the probability that he will live
Marina CMI [18]
Expected value E(x) = 0.9994(150000 - 181) = 0.9994 x 149819 = $149,729.11
3 0
3 years ago
Can anyone answer both of these?
astraxan [27]

Answer:

rate- 6

distance fallen- 18

Step-by-step explanation:

4 0
3 years ago
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