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3241004551 [841]
3 years ago
14

Julia spends $7.25 on gas for her lawn mower. She earns $12.00 mowing her neighbor's yard. What is Julia's profit? Julia earned

a profit of $
Mathematics
1 answer:
const2013 [10]3 years ago
5 0
To get julia's profit you will have to subtract the amount she spent on gas from the amount she was paid $12.00-$7.25=$4.75
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Which description matches the graph of the inequality y ≥ |x + 2| – 3? a shaded region above a solid boundary line a shaded regi
Alex777 [14]
The given inequality is y ≥ |x + 2| -3.

This inequality may be written two ways:
(a) y ≥ x + 2 - 3
    or
    y ≥ x - 1

(b) y ≥ -x -2 - 3
    or
     y ≥ -x - 5

A graph of the inequality is shown below. The shaded region satisfies the inequality.

Answer: A shaded region above a solid boundary line.

6 0
3 years ago
Which quadratic rule represents the data in the table?
NeX [460]
Since there are already choices in the question, I suggest you just substitute in the values of x to each choice and check whether the corresponding value for y appears. This is also called the trial and error method in multiple choice.

The answer that represents the data in the table is C. <span>y = x^2 – 5.</span>
3 0
3 years ago
The probability density function of the time it takes a hematology cell counter to complete a test on a blood sample is f(x)=0.0
uysha [10]

Answer:

a) 20%

b) 40%

c) Mean = 62.5 seconds; Variance = 52.083 seconds

Step-by-step explanation:

The time it takes a hematology cell counter to complete a test on a blood sample is continuously distributed over the period of 50 to 75 seconds with probability f(x) = 0.04.

a) The percentage of tests require more than 70 seconds is:

P(X>70) = 1- \frac{70-50}{75-50} \\P(X>70) =0.2 = 20\%

b)The percentage of tests that require less than one minute (60 seconds) is:

P(X70) =0.4 = 40\%

c) The mean and variance of a continuous distribution are determined by:

M=\frac{A+B}{2}=\frac{50+75}{2}\\ M= 62.5\ seconds\\\\V=\frac{(B-A)^2}{12}=\frac{(75-50)^2}{12}\\  V= 52.083\ seconds

Mean = 62.5 seconds.

Variance = 52.083 seconds.

3 0
3 years ago
Wich situation leads to a unit cost of 4$ per hat A. 4 hats for 24 B.12 hats for 48$ C. $6 paid for 2 hats D.4 paid for 4 hats
attashe74 [19]

Answer:

D.$4 paid for 4 hats

Step-by-step explanation:

What is unit cost?

unit cost can be defined as the amount paid for a unit quantity of a product

From the given options

only options D represents unit cost

the reason is because $4 was paid for 4 hats

it clearly shows that 1 hat cost $1

6 0
3 years ago
Show that f(2-3i) is a real number
densk [106]

Answer:

2 - 3i

is 2 - the square root of -9

2 -√-9

2 + √9

2 + 3 = 5

<em><u>Thank you (I dont know if these answers are  100% correct but I tried my best!)</u></em>

7 0
3 years ago
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