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algol13
2 years ago
5

I really need help with this assignment can somebody please help me there are 7 questions? The assignment is functions.

Mathematics
1 answer:
I am Lyosha [343]2 years ago
3 0

Answer:

he's right its D

Step-by-step explanation:

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Determine the intercepts of the line 20 POINTS<br> y-intercept(____,____)<br> x-intercept(____,____)
Ivenika [448]

Answer:

y-intercept(0,0.4)

x-intercept(0.3 ,0)

4 0
3 years ago
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If the Revenue for the week is $2000, and labor cost consists of two workers earning $8 per hour who work 40 hours each, what is
slega [8]
So,

All you have to do is find the total labor cost and put it over the revenue.

We have two workers each earning $8/hr. (lousy), and they work 40 hrs./week.

2 * $8 = $16/hr.

$16/hr. * 40 hrs. = $640

\frac{640}{2000}

Cross out zeros.
\frac{64}{200}

Simplify.
\frac{2^6}{2^35^2}
\frac{2^3}{5^2}
\frac{8}{25}

Convert the denominator to 100.
\frac{8}{25} *  \frac{4}{4} =  \frac{32}{100}
\frac{32}{100}
=
32%

The labor cost is 32% of the revenue.
7 0
2 years ago
Please help me withthis its realy important that I get it right
Savatey [412]

Answer:

its option C

Step-by-step explanation:

5 0
2 years ago
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Solve for w, where w is a real number.
Ber [7]

Answer:

w= 9

Step-by-step explanation:

\sqrt{ - 4w + 61}  = w - 4

Square both sides:

-4w +61= (w -4)²

\boxed{(a - b)^{2}  = a^2 -2ab + b^2 }

Expand:

-4w +61= w² -2(w)(4) +4²

-4w +61= w² -8w +16

Simplify:

w² -8w +16 +4w -61= 0

w² -4w -45= 0

Factorize:

(w -9)(w +5)= 0

w -9= 0 or w +5= 0

w= 9 or w= -5 (reject)

Note:

-5 is rejected since we are only taking the positive value of the square root here. If the negative square root is taken into consideration, then w= -5 would give us -9 on both sides of the equation.

<u>Why </u><u>do </u><u>we </u><u>use </u><u>negative </u><u>square </u><u>root?</u>

When solving an equation such as x²= 4,

we have to consider than squaring any number removes the negative sign i.e., the result of a squared number is always positive.

In the case of x²= 4, x can be 2 or -2. Thus, whenever we introduce a square root, a '±' must be used.

However, back to our question, we did not introduce the square root so we should not consider the negative square root value.

6 0
2 years ago
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How Can I find ef? Do I multiply add or diving
Solnce55 [7]
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and surely you know how much that is.
6 0
3 years ago
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