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irakobra [83]
3 years ago
6

Which set of angle measures CANNOT be the angle measures of a triangle? 1. 60, 60, 61 2. 1, 1, 178 3. 13.9, 16.1, 150 4. 59, 60,

61
Mathematics
1 answer:
natali 33 [55]3 years ago
4 0

Answer:

1.

Step-by-step explanation:

60+60+61 is 181 and a triangle always has 180 degrees

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In 2011, a U.S. Census report determined that 71% of college students work. A researcher thinks this percentage has changed sinc
coldgirl [10]

Answer:

Note: The full question is attached as picture below

a) Hо : p = 0.71

Ha : p ≠ 0.71

<em>p </em>= x / n

<em>p </em>= 91/110

<em>p </em>= 0.83.

1 - Pо = 1 - 0.71 = 0.29.

b) Test statistic = z

= <em>p </em>- Pо / [√Pо * (1 - Pо ) / n]

= 0.83 - 0.71 / [√(0.71 * 0.29) / 110]

= 0.12 / 0.043265

= 2.77360453

Test statistic = 2.77

c) P-value

P(z > 2.77) = 2 * [1 - P(z < 2.77)] = 2 * 0.0028

P-value = 0.0056

∝ = 0.01

P-value < ∝

Reject the null hypothesis.  There is sufficient evidence to support the researchers claim at the 1% significance level.

6 0
3 years ago
Write the coordinates of a point whose Abcissa is -7 and ordinate is -2​
Ksivusya [100]

Answer:

Abcissa = X, and Ordinate = Y

(-7,-2)

Is the answer

8 0
2 years ago
Which Expression is equivalent to 2(3 + 6y)​
Sonbull [250]

Answer:

6+12y

Step-by-step explanation:

By using the distribution property

7 0
3 years ago
How to solve 2 * -3 to the third power ​
lisabon 2012 [21]

Answer:

-54

Step-by-step explanation:

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8 0
3 years ago
Read 2 more answers
2100 divided by 55 (show your work) I hate math
leonid [27]

Answer:

1155

Step-by-step explanation:

We need to determine 55% of 2100 now and the procedure explaining it as such

Step 1: In the given case Output Value is 2100.

Step 2: Let us consider the unknown value as x.

Step 3: Consider the output value of 2100 = 100%.

Step 4: In the Same way, x = 55%.

Step 5: On dividing the pair of simple equations we got the equation as under

2100 = 100% (1).

x = 55% (2).

(2100%)/(x%) = 100/55

Step 6: Reciprocal of both the sides results in the following equation

x%/2100% = 55/100

Step 7: Simplifying the above obtained equation further will tell what is 55% of 2100

x = 1155%

Therefore, 55% of 2100 is 1155

6 0
2 years ago
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