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Sauron [17]
2 years ago
9

Can someone please help me(20 points will give brainliest!!!)

Mathematics
1 answer:
erica [24]2 years ago
3 0
-3f im pretty sure…
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Please Help! I will give you the brainiest and a lot of points!
egoroff_w [7]

Answer: TRUE

Step-by-step explanation: THE COMPOUD STATE MEN DETERMEND BY HE GRAPH IS THE SOLUTION AS SAID BY YOU IT IS TRUE BECAUSE THE READINGS ON THE GRAPH SHOW ITS TRUE

6 0
3 years ago
The sum of the reciprocals of two consecutive odd integers is 24/143. find the two integers.
nordsb [41]
Let one integer be x, the consecutive odd integer is x+2
reciprocals are 1/x and 1/(x+2)
1/x +1/(x+2)=24/143
make the denominators the same:
(x+2)/[x(x+2)] +x/[x(x+2)]=24/143
143(2x+2)=24(x)(x+2)
286x+286=24x²+48x
24x²-238x-286=0
use the quadratic formula: x=22 this doesn't work because 22 is not an odd number.
or x=-2.1666666666 (this is not an integer)

weird.
4 0
3 years ago
Company A is trying to sell its website to Company B. As part of the sale, Company A claims that the average user of their site
Ymorist [56]

Answer:

L = 3.975

Step-by-step explanation:

Given

See comment for data

Required

The lower limit 94% confidence interval

First, calculate the mean

\bar x =\frac{\sum x}{n}

\bar x =\frac{0.9+10+0.9+8.7+4.8+2.6+1+13.3+9.5+8.9+8.9+4.6}{12}

\bar x =\frac{74.1}{12}

\bar x =6.175

Next, calculate the standard deviation using:

\sigma = \sqrt{\frac{\sum(x - \bar x)^2}{n}}

So, we have:

\sigma = \sqrt{\frac{(0.9 - 6.175)^2 +(10- 6.175)^2 +.................+(8.9- 6.175)^2 +(4.6- 6.175)^2}{12}}

\sigma = \sqrt{\frac{197.2625}{12}}

\sigma = \sqrt{16.4385416667}

\sigma = 4.054

For 94% interval, the z score is

z = 1.88

So, the margin of error (E) is:

E = z * \frac{\sigma}{\sqrt n}

E = 1.88 * \frac{4.054}{\sqrt {12}}

E = 1.88 * \frac{4.054}{3.464}

E = 2.200

The confidence interval of the true mean is:

CI = (\bar x \± E)

The lower limit (L) is:

L = \bar x -E

L = 6.175 -2.200

L = 3.975

and the upper limit (U) is

U = \bar x + E

U = 6.175 + 2.200

U = 8.375

5 0
3 years ago
What is the area of the trapezoid? The diagram is not drawn to scale.
loris [4]

Answer:

Area of trapezoid = 21 cm²

Step-by-step explanation:

Given:

Length of rectangular shape = 4 cm

Width of rectangular shape = 3 cm

Base of triangle = 3 cm

Number of triangle = 3 cm

Find:

Area of trapezoid

Computation:

Area of trapezoid = Area of middle rectangle + Number of triangle[Area of triangle]

Area of trapezoid = [l x b] + 2[(1/2)(b)(h)]

Area of trapezoid = [4 x 3] + 2[(1/2)(3)(3)]

Area of trapezoid = 12 + 9

Area of trapezoid = 21 cm²

6 0
3 years ago
A three dimensional figure that has polygons as faces
Free_Kalibri [48]
 a triangular prism:):):):):)
7 0
4 years ago
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