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2 years ago

A telephone cable runs from A to B to C to D. How much cable is required to run from A to D directly, if

Mathematics

1 answer:

igor_vitrenko [27]2 years ago

3 0

You would have to know the angle measurements if you have a picture of the problem re-ask it and I'll be able to help

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WILL GIVE BRAINLIEST What is the value of a in the problem 4a-3=D explain answer

mixas84 [53]

In this case, you aren't going to get an integer for the value of a, but you can rearrange the equation to equal a.

4a-3=D   add 3 to both sides
4a=D+3    divide both sides by 4
a=(D+3)/4   here's your answer

4 0

3 years ago

The profits of a company are found by subtracting the company's costs from its revenue. If a company's cost can be modeled by 14

evablogger [386]

Answer:

$-0.0002x^2 +26x-120000$

Step-by-step explanation:

The correct question should be:

We have been told that all we have to do to get profit is to subtract the cost from revenue.

Revenue = $40x - 0.0002x^2$

Cost = $14x + 120,000$

Hence:

Profit = $40x - 0.0002x^2 - (14x + 120000)$

$40x - 0.0002x^2 - 14x - 120000\\\\40x - 14x - 0.0002x^2 - 120000\\\\26x - 0.0002x^2 - 120000$

Putting it in ordered form:

$-0.0002x^2 +26x-120000$

This is an expression for the profit.

4 0

2 years ago

What is vertex of x^2+5x-3

Art [367]

$\text{The vertex of}\ ax^2+bx+c:\\\\(h,\ k),\ \text{where}\ h=\dfrac{-b}{2a};\ k=f(h)=\dfrac{-(-b^2-4ac)}{4a}$

$\text{We have:}\\f(x)=x^2+5x-3\\\\a=1,\ b=5,\ c=-3\\\\h=\dfrac{-5}{2\cdot1}=\dfrac{-5}{2}=-2.5\\\\k=f(-2.5)=(-2.5)^2+5(-2.5)-3=6.25-12.5-3=-9.25$

$\text{Answer: the vertex is in}\ (-2.5;\ -9.25)$

6 0

2 years ago

Determine the domain and range of the given function.

frez [133]

Answer: domain is all real numbers and range is all real numbers greater than or equal to -2

Step-by-step explanation:

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2 years ago

Question 12 of 41

abruzzese [7]

ANSWER: D. Icosahedron

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2 years ago