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Over [174]
3 years ago
13

Alana can complete 100 math facts in 5 minutes. How long does it take her to complete 1 math fact?

Mathematics
1 answer:
Inga [223]3 years ago
3 0

Answer:

3 seconds

Step-by-step explanation:

Convert minutes to seconds: 5*60=300 seconds. 100 math facts in 300 seconds. 100/300=3. She solves a math question every 3 seconds (holy cr.ap that's fast)

You might be interested in
The function P(x) = –0.015x^2 + 1.2x – 11.5 gives the profit, in thousands of dollars, when a company sells a new product at x d
dlinn [17]

Answer:

The profit decreases by $ 375 for every $ 1 increase in the selling price.

Step-by-step explanation:

From the definition of the secant line we get that the average rate of change of P(x) = -0.015\cdot x^{2}+1.2\cdot x -11.5, where x is the selling price of the product, measured in dollars per unit, is:

r = \frac{P(55)-P(50)}{55-50} (1)

Now we evaluate the function at each bound:

x = 50

P(50) = -0.015\cdot (50)^{2}+1.2\cdot (50)-11.5

P(50) = 11

x = 55

P(55) = -0.015\cdot (55)^{2}+1.2\cdot (55)-11.5

P(55) = 9.125

Then, the average rate of change is:

r = \frac{9.125-11}{55-50}

r = -0.375

Hence, the profit decreases by $ 375 for every $ 1 increase in the selling price.

8 0
3 years ago
Determine the value of x.
harina [27]

Answer:

2

Step-by-step explanation:

7 0
2 years ago
What is the completely factored form of x^4+8x^2-9
miss Akunina [59]

Answer:

I think it is (x^2+9) x (x-1) x (x+1)

Step-by-step explanation:

(not sure if right but had a go)

7 0
3 years ago
Write an equation of a parabola with a vertex at the origin and the given focus 10. Focus at (-1,0)
Nostrana [21]

Step-by-step explanation:

focus(p) is on the x axis= -1

vertex=(0,0)

parabola equation----- (y-h)^2 =4p(x-k)

(h, k)=(0,0)

(y-0)^2 =4(-1)(x-0)

|

|

|

y^2 = -4x

that is the answer

3 0
2 years ago
Geometry 10th Grade. Help but only with right answers don't waste the answers
skelet666 [1.2K]

Answer:

the last one, d

Step-by-step explanation:

simplify it and you get x+3, y+1 which is the translation on the graph.

8 0
2 years ago
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