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2 years ago

Given n > 0, Adam conjectured that 6" Which value is a counterexample to Adam's conjecture?

Mathematics

1 answer:

miv72 [106K]2 years ago

5 0

Answer:

n = 4

Step-by-step explanation:

Unit: 1.14 Unit Test: Introduction to Logic and Euclidean Geometry - Part 1

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Please Help!!!!!!!!!!!!!!!

melisa1 [442]

Answer:X=4

Step-by-step explanation:

Congruent triangles method

AB/DB=BC/EC

10-x+x/10-x=3+2/3

10/10-x=5/3

30=50-5x

30-50=-5x

-20=-5x

X=4

3 0

3 years ago

A company plans to build a wheelchair ramp with the following

Liono4ka [1.6K]

9514 1404 393

Answer:

yes

Step-by-step explanation:

The height that would be allowed with a ramp 43.5 feet long is ...

h = (43.5 ft)·sin(4.8°) ≈ 3.64 ft

The proposed height is less than 3.64 ft, so the ramp angle is less than 4.8°.

The ramp angle is actually arcsin(3/43.5) ≈ 3.95°, which is less than 4.8°.

7 0

3 years ago

AARP reported on a study conducted to learn how long it takes individuals to prepare their federal income tax return (AARP Bulle

Crank

Answer:

Confidence interval: (30.1,36.9)

Step-by-step explanation:

We are given the following data set:

35.3,30.5,37.4,26.5,13.0,49.9,28.8,44.0,61.6,0.5,40.5,34.9,47.9,36.6,24.1,39.8,47.8,18.5,36.6,39.2,14.5,37.3,40.5,49.3,45.5,28.3,19.5,5.6,52.6,41.4,45.3,39.0,33.7,29.4,14.5,40.1,33.7,36.9,5.6,33.7

Formula:

$\text{Standard Deviation} = \sqrt{\displaystyle\frac{\sum (x_i -\bar{x})^2}{n-1}}$

where $x_i$ are data points, $\bar{x}$ is the mean and n is the number of observations.

$Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}$

$Mean =\displaystyle\frac{1339.9}{40} = 33.5$

$S.D = 11$ (given)

n = 40

Confidence interval:

$\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}$

Putting the values, we get,

$z_{critical}\text{ at}~\alpha_{0.05} = 1.96$

$33.5 \pm 1.96(\frac{11}{\sqrt{40}} ) = 6.34 \pm 3.4 = (30.1,36.9)$

6 0

3 years ago

Willian bought 11 books. He decided to present 2 books to each of his friends and still have one book left. Find the number of f

ira [324]

Answer:

i think he has 5 friends

Step-by-step explanation:

sorry if im wrong

7 0

3 years ago

Read 2 more answers

Whats the formula for the surface area of a triangle?

Alecsey [184]

Answer:

use the formula A = 1/2bh, where A = area, b = base, and h = height. Once you have the areas of all sides and faces, you simply add them together to get the surface area.

Hope this helps!

8 0

3 years ago

Read 2 more answers