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lutik1710 [3]
4 years ago
12

Which of the following is NOT always true about a rhombus? (A) All sides are congruent. (B) All angles are congruent. (C) It has

two pairs of parallel sides. (D)It has two pairs of congruent angles.​
Mathematics
1 answer:
Alex777 [14]4 years ago
6 0

Answer:

A: All sides are congruent

Step-by-step explanation:

If all sides were congruent then it would be a square.

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Because of high production-changeover time and costs, a director of manufacturing must convince management that a proposed manuf
7nadin3 [17]

Answer:

See explanation below

Step-by-step explanation:

Here, a director of manufacturing must convince management that a proposed manufacturing method reduces costs before the new method can be implemented. The current production method operates with a mean cost of $220 per hour.

a) The alternative and null hypotheses would be:

H0: μ ≥ 220

Ha: μ < 220

b) Comment on the conclusion when H0 cannot be rejected:

When we fail to reject the null hypothesis H0, there is not enough evidence to conclude that the mean cost can be reduced from $220. Therefore the manager's proposed method cannot be implemented.

c) Comment on the conclusion when H0 can be rejected:

When the null hypothesis, H0 is rejected, there is enough evidence to conclude that the mean cost can be reduced from from $220. Therefore the manager's proposed method can be implemented.

3 0
3 years ago
What is the answer ​
Tema [17]

Answer:

My wet but, you scaliwag

Step-by-step explanation:

it simple and easy

4 0
3 years ago
A bag has five red stones two green three blue six yellow and four purple stones what is the probability of choosing a yellow st
Y_Kistochka [10]

Answer:

Probability of picking yellow stones from the bag is 0.3.

Step-by-step explanation:

Given:

Number of red stone in bag = 5

Number of green stone in bag = 2

Number of blue stone in bag = 3

Number of yellow stone in bag = 6

Number of purple stone in bag = 4

We need to find the probability of choosing yellow stone from the bag.

Solution:

First we will find the Total number of stones in the bag.

Total number of stones in the bag is equal to sum of Number of red stone in bag ,Number of green stone in bag, Number of blue stone in bag, Number of yellow stone in bag and Number of purple stone in bag.

framing in equation form we get;

Total number of stones in the bag = 5+2+3+6+4 =20

Now Probability of picking yellow stones from the bag  can be calculated by  dividing Number of yellow stone in bag by Total number of stones in the bag.

framing in equation form we get;

P(Y) =\frac{6}{20}= 0.3

Hence Probability of picking yellow stones from the bag is 0.3.

4 0
3 years ago
The probability of winning a 5/25 lottery game where 5 numbers are picked from a range of 25 is ________.
rodikova [14]
5 numbers chosen from 25 can be done in 25C5 = 25!/(5!*20!) = 53,130 ways. The probability of choosing the correct set of 5 numbers is
  1/53,130
8 0
4 years ago
Read 2 more answers
What is the cost of buying 5 kg of cheese worth<br> $9.00 per kg?
topjm [15]
$45

Hope this helps you
6 0
3 years ago
Read 2 more answers
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