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statuscvo [17]
4 years ago
9

Please help me with this

Mathematics
1 answer:
Maurinko [17]4 years ago
8 0

Answer:

C and E I think

Step-by-step explanation:

They both represent taking number of people, or population

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Which expression is equivalent to 7(-3k)
rosijanka [135]

Answer:

-21k=7(-3k)................………………

8 0
3 years ago
Find all the zeros of the equation. -3x^4+27x^2+1200=0 PLEASE HELP and show work
asambeis [7]

Answer: x=−5 or x=5


Step-by-step explanation:

−3x4+27x2+1200=0

Step 1: Factor left side of equation.

−3(x2+16)(x+5)(x−5)=0

Step 2: Set factors equal to 0.

x2+16=0 or x+5=0 or x−5=0

x=−5 or x=5


8 0
3 years ago
Jimmy owns a small engine repair business. The revenue, in dollars, can be modeled by the equation y = 420 + 72x, where x is the
kozerog [31]

Answer:

5 hours

Step-by-step explanation:

Given

y = 420 + 72x --- Revenue

y = 24x^2 + 180 --- Overhead cost

Required

Determine the hours for break even

To do this, we simply equate both expressions as follows:

24x^2 + 180 = 420 + 72x

Collect Like Terms

24x^2 - 72x + 180 - 420 = 0

24x^2 - 72x -240 = 0

Divide through 24

x^2 - 3x - 10 = 0

Expand:

x^2 -5x + 2x -10 = 0

Factorize:

x(x -5) + 2(x -5) = 0

(x + 2)(x -5) = 0

x + 2 = 0\ or\ x - 5 = 0

x = -2\ or\ x = 5

But x can't be negative because it represents time.

<em>So, x = 5 hours</em>

3 0
3 years ago
Now, solve use the equation to solve for w.
babymother [125]

Answer:

Option A

Step-by-step explanation:

25w+200=750\\\\25w+200-200=750-200\\\\25w=550\\\\\frac{25w=550}{25}\\\\\boxed{w=22}

Hope this helps.

4 0
4 years ago
State of the triangles in the pair are similar. If so, complete the similarity statement.
kherson [118]
Yes they are similar. ⃤SRQ ~ ⃤SBC
4 0
3 years ago
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