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vladimir1956 [14]
3 years ago
5

An electrician worked 28 hours a week for half a year. If his hourly wage was $25, how much did he earn during this time period?

Mathematics
2 answers:
boyakko [2]3 years ago
7 0
So, there are 52 weeks in a year, so divide that in half to get 26 total weeks that he worked. Then, multiply 26 by 28 to get the total amount of hours he worked in his time of working, which is 728 hours. Then, since his hourly wage was $25, multiply 728 by $25 to get a total of $18,200. 
Fantom [35]3 years ago
3 0
Divide 365 by 2 divide that by 7 then multiply  28 and 25 then multiply your two anwsers18250
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ASAPPP!!!! HELP I WILL GIVE 100POINTS AND BRAINLIST Question 9 (Essay Worth 10 points)
Luda [366]

Answer:

Part A)

The <em>x-</em>intercepts are (-1/4, 0) and (4, 0).

Part B)

The vertex is a maximum because the leading coefficient is negative.

The vertex is (1.875, 72.25).

Part C)

We can plot the zeros and the vertex, and connect them with a curve.

Step-by-step explanation:

The function given is:

f(x)=-16x^2+60x+16

Part A)

To find the <em>x-</em>intercepts of the function, set the function equal to 0 and solve for <em>x: </em>

<em />0=-16x^2+60x+16<em />

We can divide both sides by negative four:

0=4x^2-15x-4

Factor:

0=(4x+1)(x-4)

Zero Product Property:

x-4=0\text{ or } 4x+1=0

Solve for each case:

\displaystyle x=-\frac{1}{4}\text{ or }x=4

Hence, our zeros are:

\displaystyle \left(-\frac{1}{4}, 0\right)\text{ and } \left(4, 0\right)

Part B)

Note that the leading coefficient of our function is negative.

So, our function will be concave down.

Hence, our vertex will be the maximum.

The vertex is given by:

\displaystyle \left(-\frac{b}{2a}, f\left(-\frac{b}{2a}\right)\right)

In this case, <em>a </em>= -16, <em>b</em> = 60, and <em>c</em> = 16.

Find the <em>x-</em>coordinate of the vertex:

\displaystyle x=-\frac{(60)}{2(-16)}=\frac{15}{8}=1.875

Substitute this back into the function to find the <em>y-</em>coordinate:

f(1.875)=-16(1.875)^2+60(1.875)+16=72.25

Hence, our vertex is:

(1.875, 72.25)

Part C)

Since we already determined the zeros and the vertex, we can plot the two zeros and the vertex and draw a curve between the three points.

The graph is shown below. Again, to do this by hand, simply plot the three points and connect them with a parabola. If necessary, we can also find the <em>y-</em>intercept.

7 0
3 years ago
PLEASE HELP ME! Select the correct answer. Consider function g. Which function could be the inverse of function g?
maria [59]

Answer:

A)  k(x)

Step-by-step explanation:

An inverse function does the opposite to the function.

For example, if the function was "+2" then the inverse would be "-2", or if the function was "×2" the inverse would be "÷2".

An <u>inverse function</u> is a <u>reflection of the function in the line y = x</u>

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(-4, 3) → (3, -4)

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(4, 5) → (5, 4)

(8, 6) → (6, 8)

Therefore, the function k(x) could be an inverse of function g(x).

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2 years ago
Which information is not necessary to solve this problem? WHO EVER GETS THIS FIRST IS BRAINLIEST
Ad libitum [116K]
So we need to now how many crates they sold, how many boxes are in a crate, and how much they sold the cates for. 

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3 years ago
Dylan delivers parcels.
vovikov84 [41]

Answer:

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Friday:

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THis is equals to 77. So

0.5*1.1x = 77

x = \frac{77}{0.5*1.1}

x = 140

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Alex17521 [72]

Answer:

Isolate the variable by dividing each side by factors that don't contain the variable.

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x≤−3

Interval Notation: ( − ∞ , − 3 ]

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