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docker41 [41]
2 years ago
15

Please Help me solve this (Who ever answers correctly will get brainlest)

Mathematics
1 answer:
alexdok [17]2 years ago
6 0

Answer:

First ones right

Second one wrong

Third one wrong

Fourth one right

Fifth one right

Step-by-step explanation:

I'm pretty sure this is right lol

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In order for the barge operator to meet his expenses, he has to haul at least 120 tons of freight. How many railroad cars must t
UNO [17]

Answer:

3

Step-by-step explanation:

An average railroad car has a weight of about 33 tons.

120 tons of freight is equivalent to 120/4 = 3.64 cars

that means that, for the operator to be able to haul 120 tons of freight, he has to haul at least 3 cars to break even.

7 0
3 years ago
6 + 5|2x -3| ≥ 4 pls pls pls help
sattari [20]

Answer:

x is all real numbers

Step-by-step explanation:

6 + 5|2x -3| ≥ 4

The first step is to subtract 6 from each side

6 -6+ 5|2x -3| ≥ 4-6

5|2x -3| ≥ -2

Now divide each side by 5

5/5|2x -3| ≥ -2/5

|2x -3| ≥ -2/5

Absolute values are always positive.  Our absolute value is greater than a negative number.  It is always true.  X can be any number and our absolute value will still be greater than -2/5.

x is all real numbers

4 0
4 years ago
which of the following answer choices describes all the transformation found in the cubic function f(x)=-(x+2)3-5
Alona [7]
The cubic function is f(x) = x^3

You need to perform three transformations to the cubic function to obtain
f(x) = - (x + 2)^3 - 5.

Those transfformations are:

1) Shift f(x) = x^3,  2 units leftward to obtain f(x) = (x + 2)^3

2) reflect f(x) = (x + 2)^3 across the x-axis to obtain f(x) = - (x + 2)^3

3) shift f(x) = - ( x + 2) ^3, 5 units downward to obtain f(x) = - (x + 2)^3 - 5
8 0
4 years ago
The waiting times between a subway departure schedule and the arrival of a passenger are uniformly distributed between and minut
Paraphin [41]

Answer:

Incomplete question, but the concepts of the uniform distribution needed to solve this question are given here.

Step-by-step explanation:

Uniform probability distribution:

An uniform distribution has two bounds, a and b.

The probability of finding a value of at lower than x is:

P(X < x) = \frac{x - a}{b - a}

The probability of finding a value between c and d is:

P(c \leq X \leq d) = \frac{d - c}{b - a}

The probability of finding a value above x is:

P(X > x) = \frac{b - x}{b - a}

The waiting times between a subway departure schedule and the arrival of a passenger are uniformly distributed between a and b minutes.

From here, we get the values of a(smallest value) and b(highest value).

Question of the probabilities:

In the two probability questions, you will get the value of x, and will apply one of the three formulas given above, depending on the question, to find the desired probability.

3 0
3 years ago
Find the unit rate for each of the packages. Compare the unit rates. Which is the best price per bagel? A. 1 bagel for $0.79 B.
aivan3 [116]
1st Bagel; $0.79. 2nd Bagel; $0.67. 3rd Bagel; $0.70. 4th Bagel; $0.75. So B would be the correct answer, given 67¢ is cheaper ;)))))))
6 0
3 years ago
Read 2 more answers
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