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Anvisha [2.4K]
3 years ago
6

The height above the surface of the Earth​ (in meters) of a rock thrown into the air at 10​ m/s after x seconds is given by f(x)

=-9.8x^2+10x+1.5. On the surface of the​ moon, the height is given by g(x)=-1.6x+10x+1.5. How much higher does the rock travel on the moon than on​ Earth?
How much higher does the rock travel on the moon than on Earth? (Round to the nearest tenth if needed)
Mathematics
2 answers:
SSSSS [86.1K]3 years ago
8 0

Answer:

do you still need help

Step-by-step explanation:

iren [92.7K]3 years ago
6 0

Answer:

The answer is 13.1

Step-by-step explanation:

Hello! Hope u still need the answer but the answer for the question above is "13.1"! How did I got the answer you ask? I'll show u! :)

The maximum height of the rock represents the vertex of a parabola. Recall that the​ x-coordinate of the standard form quadratic function ​f(x)axbxc is given as x

Hope this help you! I got the answer wrong but and waiting for an answer but it's best if u learn from your mistakes and ask for help! :)

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What is the product of <br>(7/8)(-16)(-7)(-1/14)<br><br>A -7<br>B -9/16<br>C -1/7<br>D 23/12​
Nat2105 [25]

Answer:

-7

Step-by-step explanation:

(7/8)(-16)(-7)(-1/4)

(7/8)(-1/4)(-16)(-7)

(-1/16)(112)

-7

4 0
3 years ago
Why do equivalent ratios form a straight line when<br> graphed? Explain.
irina1246 [14]

Answer:

The y-values of equivalent ratios increase at the same rate as their x-values. The vertical distance between points is constant, and the horizontal distance between points is constant. This forms a straight line.

Step-by-step explanation:

Equivalent proportions (which are, as a result, equal parts) are two proportions that express a similar connection between numbers. We can make comparable proportions by duplicating or separating both the numerator and denominator of a given proportion by a similar number.

Two ratios that have the same value are called equivalent ratios. To find an equivalent ratio, multiply or divide both quantities by the same number. It is the same process as finding equivalent fractions.

8 0
2 years ago
The 2010 General Social Survey reported a sample where about 48% of US residents thought marijuana should be made legal. If we w
Sati [7]

Answer:

The sample size is  n  = 600

Step-by-step explanation:

From the question we are told that

    The  sample proportion is  \r  p = 0.48

     The  margin of error is  MOE  =  0.04

Given that the confidence level is 95%  the level of significance is mathematically represented as

        \alpha  =  100 - 95

        \alpha  =  5 \%

        \alpha  =  0.05

Next  we obtain the critical value of  \frac{\alpha }{2} from the normal distribution table , the values is

                   Z_{\frac{\alpha }{2}  } =  1.96

The reason we are obtaining critical value of    \frac{\alpha }{2} instead of    \alpha is because  

\alpha represents the area under the normal curve where the confidence level interval (  1-\alpha) did not cover which include both the left and right tail while  

\frac{\alpha }{2} is just the area of one tail which what we required to calculate the margin of error

Generally the margin of error is mathematically represented as

      MOE  =  Z_{\frac{\alpha }{2} } *  \sqrt{ \frac{\r p(1-  \r p )}{n} }

substituting values

          0.04= 1.96*  \sqrt{ \frac{0.48(1-  0.48 )}{n} }

         0.02041 = \sqrt{ \frac{0.48(52 )}{n} }

         0.02041 = \sqrt{ \frac{ 0.2496}{n} }

          0.02041^2  = \frac{ 0.2496}{n}

           0.0004166 = \frac{ 0.2496}{n}

=>       n  = 600

   

5 0
3 years ago
At last week's track meet, Stacy ran 9/12 of a km, Jules ran 4/5 of a km, and Raul ran 3/4 of a mile. Which two students ran the
koban [17]

Answer:  No two students ran same distance

Step-by-step explanation:

Given

Stacy ran \frac{9}{12} of a km i.e.

\Rightarrow 1\times \dfrac{9}{12}=\dfrac{3}{4}=0.75\ km

Jules ran \frac{4}{5} of a km i.e.

\Rightarrow 1\times \dfrac{4}{5}=0.8\ km

Raul ran \frac{3}{4} of mile i.e.

\Rightarrow 1\times \dfrac{3}{4}=0.75\ miles\\\\\text{1 mile=1.6 km}\\\\\Rightarrow 0.75\ miles=1.2\ km

So, no two students ran the same distance.

6 0
3 years ago
A soccer ball on the ground is kicked with an initial velocity of 37 feet per second at an elevation angle of 70°. Which paramet
Andrei [34K]

Answer:

its B

Step-by-step explanation:

5 0
3 years ago
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