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kirill [66]
4 years ago
14

What are the solutions to the equation below?

Mathematics
1 answer:
Kryger [21]4 years ago
4 0
So, as you can see, there are actually two equations here:
x- 4 = 0 and 8x+64=0
So, we need to solve both of them to get the solution.

x-4=0
x = 4

8x+64=0
8x=-64
x=-64/8
x=-8

So, the correct answer is C. x=4 and x=-8

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A cylinder vase has a height of 10 inches and a diameter of 3 inches. If the water raises to 9/10 of the way to the top, approxi
goblinko [34]

Answer:

The volume of water in the vase is 64 in^3

Step-by-step explanation:

A cylinder vase has a height, h, of 10 inches and its diameter of 3 inches. This means that its radius, r, is:

r = 3 / 2 = 1.5 inches

To find the volume of the water in the vase if the water raises to 9/10 of the way to the top, we first have to find the volume of the vase when it is filled with water and then, find 9/10 of that volume.

The volume of a cylinder is given as:

V = \pi r^2h

The volume of the vase will be:

V = \pi * 1.5^2 * 10\\V = 70.69 in^3

Hence, the volume of the water in the vase when it is 9/10 filled is:

\frac{9}{10} * 70.69 = 63.62 in^3

Approximating to the nearest cubic inch, the volume of water in the vase is 64 in^3

5 0
3 years ago
When Famke charges her phone, it gains 2 percentage points each minute. When Frmke uses her phone, it loses 5 percentage points
sweet-ann [11.9K]
Charging: +2/min <span>percentage points.
Using: -5/min percentage points.
</span>Amount of time Famke used her phone: x
Amount of time Famke charge her phone: 2x
Famke gained 2x*(2/min)=x*(4/min) percentage points.
Over this period <span>her phone lost 10 percentage points→
x*(5/min)-x*(4/min)=10⇒x*(1/min)=10
x=10</span>

This means that she used her phone for 10 minutes and charged it for 20 minutes.


7 0
3 years ago
Which exponential function is represented by the
Leno4ka [110]

Answer:

C, f(x) = 3(2)^x

Step-by-step explanation:

Since the y-intercept is 3, the function will have 3 multiplying by some number to the power of x.

As x increases by 1, we notice that y multiplies by 2 every time.

This leads us to believe that the equation is 3 * 2^x

8 0
3 years ago
You have 15 pennies in your pocket. Of those pennies, 3 are Canadian. Suppose you pick a penny out of your pocket at random. Fin
Lapatulllka [165]
<span>this your answer hun

</span><span>P ( canadian)= 3/15 = 1/5
-> P(not canadian) = 1 - 1/5 = 4/5</span>
7 0
3 years ago
Read 2 more answers
Need a Quick answer please
rusak2 [61]

Answer:

so i do not know that but hi

i just want points when i am bored

Step-by-step explanation:

3 0
3 years ago
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