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3 years ago

Ratio of 2 cups to 10 cups?

Mathematics

1 answer:

ehidna [41]3 years ago

8 0

Answer:

2:10, 2 to 10, 2/10

Step-by-step explanation:

"To find an equal ratio, you can either multiply or divide each term in the ratio by the same number (but not zero). For example, if we divide both terms in the ratio 3:6 by the number three, then we get the equal ratio, 1:2."

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If g(x) = -2x+7, what is the new function defined by h(x) = g(2x^2 +1)

hammer [34]

Answer:

h(x) = - 4x² + 5

Step-by-step explanation:

To find h(x) = g(2x² + 1), substitute x = 2x² + 1 into g(x)

h(x) = - 2(2x² + 1) + 7

= - 4x² - 2 + 7

= - 4x² + 5

5 0

4 years ago

I can’t tell if 3 is a dilation or not!

S_A_V [24]

Answer:

No, its not

Step-by-step explanation:

The points of the image are not moved away from the center of dilation proportionally. I don't think anyway.

3 0

3 years ago

A fish swims upstream a distance of 16 miles in a river with a current of 3 miles per hour. The fish returns swimming

arlik [135]

Answer:

9 mph = the speed in still water

Step-by-step explanation:

Let r = the speed in still water

Then the speed going down stream is r + 3

and the speed going upstream is r - 3

d = rt or t = d/r

time going downstream is 16/(r + 3) and time going upstream is 16/(r - 3)

The total time was 4 hours, so

$\frac{16}{r + 3} + \frac{16}{r - 3} = 4$ Multiply thru the equation by (r + 3)(r - 3)

Then 16(r - 3) + 16(r + 3) = 4(r + 3)(r - 3)

16r - 48 + 16r + 48 = $4r^{2}$ - 36

$4r^{2}$ - 36 = 32r

$4r^{2}$ - 32r - 36 = 0

$4(r^{2} - 8r - 9) = 0$

4(r - 9)(r + 1) = 0

r = 9 or -1

But a rate of speed cannot be negative, so x ≠ -1

So, r = 9 mph = the speed in still water

7 0

3 years ago

Brainliest question please help me now plz

andrey2020 [161]

Answer:

-56

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Which graph represents the function p(x) = x-11?

Agata [3.3K]

P = x – 11
*********
X

3 0

3 years ago