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Gre4nikov [31]
3 years ago
10

Need help pleaseeeee!!!!!!!!!

Mathematics
1 answer:
kenny6666 [7]3 years ago
8 0

Answer:

y = 3^x is the answer as the others are quadratic or cubic functions.

Quadratic graphs are always pointing upwards or downwards, while cubic graphs have 1 end up and 1 end down.

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Write 14.2% as a decimal.
Over [174]
Hello there,

14.2% as a decimal would be 0.142

Glad to help!

~Hottwizzlers!
8 0
3 years ago
A person standing at the edge of a cliff throws a rock upward from a height of 180ft above ground level with an initial velocity
taurus [48]

Answer: 8.73 ft/s

Step-by-step explanation:

We have the following equation that models the motion of the rock:

h(t)=-16t^{2}+64t+180

Where h(t) is the height of the rock at a time t.

Now, if  h(t)=48 ft we can find t and then the velocity of the rock at that height:

48=-16t^{2}+64t+180

Rearranging the equation:

-16t^{2}+64t+132=0

Multiplying the equation by -1:

16t^{2}-64t-132=0

Solving with the quadratic formula t=\frac{-b\pm\sqrt{b^{2}-4ac}}{2a}  , where a=16, b=-64, c=-132 .

t=\frac{-(-64)\pm\sqrt{(-64)^{2}-4(16)(-132)}}{2(16)}

Choosing the positive result of the equation:

t=5.5 s  

Since velocity V is defined as the traveled distance h(t) in a given time t, we have:

V=\frac{h(t)}{t}

V=\frac{48 ft}{5.5 s}

V=8.727 ft/s \approx 8.73 ft/s This is the velocity of the rock at the height of 48 feet

7 0
3 years ago
How can the decimal 0.57 be written as a fraction
Akimi4 [234]
If you want to convert 0.57 into a fraction, you can do it like this:
<span>
<span>0.57 equals to 57/100 </span></span><span>(you can't do anything else because 57 and 100 don't have common factors).

</span><span><span /><span>The result is 57/100.</span>
</span>
7 0
3 years ago
Read 2 more answers
River C is 300 Miles Longer than River D. If the sum of their lengths is 5,570 miles, what is the length of each river?
d1i1m1o1n [39]
x-\ length\ of\ river\ D\\&#10;x+300-\ length\ of\ river\ C\\\\&#10;5570=x+x+300\\&#10;5570=2x+300\ \ \ | subtract\ 300\\5270=2x\ \ \ | divide\ by\ 2\\x=2635\\\\&#10;River\ C\ is\ 2935miles\ long\ and\ river\ D\ 2635\ miles\ long.
6 0
3 years ago
SOMEONE PLEASE HELP WILL MARK BRAINLIST
ra1l [238]

Answer:

The answer is 0.005.

Step-by-step explanation:

<u>When you divide any number by 10, you move the decimal point over to the left by </u>1 place.

If, for example, you were instead multiplying by 10, your answer would change to 0.5.

3 0
2 years ago
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