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gladu [14]
3 years ago
15

Tell me ur name for 100 points.

Mathematics
2 answers:
MrRa [10]3 years ago
5 0

Answer:

lijah dyer

Step-by-step explanation:

L + i + j + a + h = Lijah

D + y + e + r = Dyer

equation = A + B = C

A = Lijah | B = Dyer | C = Lijah Dyer

notsponge [240]3 years ago
4 0

Answer:

Kane

Step-by-step explanation:

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Find the product or (x^2+4x-3)(2x^2+x+6)
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The answer is
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Please help, much needed. A lot of points
svetoff [14.1K]

Answer:

A. -9

Step-by-step explanation:

If one of the variables were negative than, it would not be able to equal 2/7.

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In order to help identify baby growth patterns that are unusual, we need to construct a confidence interval of the mean head cir
sukhopar [10]

Answer:

The 99% confidence interval estimate of the mean head circumference of all 2-month-old babies is (40.18cm, 41.02cm).

Step-by-step explanation:

Our sample size is 100.

The first step to solve this problem is finding our degrees of freedom, that is, the sample size subtracted by 1. So

df = 100-1 = 99.

Then, we need to subtract one by the confidence level \alpha and divide by 2. So:

\frac{1-\alpha}{2} = \frac{0.01}{2} = 0.005

Now, we need our answers from both steps above to find a value T in the t-distribution table. So, with 99 and 0.005 in the t-distribution table, we have T = 2.626

Now, we find the standard deviation of the sample. This is the division of the standard deviation by the square root of the sample size. So

s = \frac{1.6}{\sqrt{100}} = 0.16

Now, we multiply T and s

M = Ts = 2.626*0.16 = 0.42

For the lower end of the interval, we subtract the sample mean by M. So the lower end of the interval here is

L = 40.6 - 0.42 = 40.18cm

For the upper end of the interval, we add the sample mean and M. So the upper end of the interval here is

L = 40.6 + 0.42 = 41.02cm

So

The 99% confidence interval estimate of the mean head circumference of all 2-month-old babies is (40.18cm, 41.02cm).

3 0
3 years ago
The trajectory of a golf ball in a chip from the rough has a parabolic pattern. The height, in feet, of the ball is given by the
lakkis [162]

9514 1404 393

Answer:

  maximum height of 17.07 feet about 10.67 feet from the club

  returns to the ground 21.33 feet away

Step-by-step explanation:

A graphing calculator can answer these questions easily.

The vertex of the quadratic ax²+bx+c is given by x=-b/(2a). For this quadratic function, the highest point is found at ...

  x = -(3.2)/(2(-0.15)) = 32/3 = 10 2/3 . . . . feet horizontally from the club

The maximum height is the function value at that point.

  h(10 2/3) = (-0.15(10 2/3) +3.2)(10 2/3) = 1.6(10 2/3) = 17 1/15

The ball reaches a maximum height of 17 1/15 feet at a horizontal distance of 10 2/3 feet from the club. The ball's flight is symmetrical about the peak, so it returns to the ground about 21 1/3 feet away.

5 0
3 years ago
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