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Mamont248 [21]
3 years ago
6

Which of the following is NOT true of a parallelogram? A. Opposite sides have to be congruent. B. Opposite sides have to be para

llel. C. Adjacent sides have to be congruent. D. Opposite angles have to be congruent.
Mathematics
1 answer:
navik [9.2K]3 years ago
4 0
The answer is a because vertical sides are at a different angle then the horizontal sides but both horizontal and vertical sides are parallel not congruent.<span />
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Brayden tosses a coin 500 times. Of those 500 times, he observes heads a total of 416 times. Calculations show that the probabil
elena-14-01-66 [18.8K]

Answer: The probability of this ocurring by chance is less than 0.01.

The meaning of the significance level is that it tells that there is difference of 1% level when there is no actual difference.

Step-by-step explanation:

Since we have given that

Number of times a coin tossed = 500

Number of times head occurs = 416

So, our Z-score would be

Z_\alpha =\dfrac{416}{500}=0.832

So, At significance level of 0.01, p-value of Z-score is .202704.

and p-value < 0.01, i.e. 0.202704<0.832.

Hence, the probability of this ocurring by chance is less than 0.01.

The meaning of the significance level is that it tells that there is difference of 1% level when there is no actual difference.

7 0
3 years ago
Marily ate 320 pounds of vegetables last year. How many ounces did she eat per month? Round to the nearest tenth
8_murik_8 [283]
320 pounds divided by 12 months = around 26.67 pounds per month, if you converted to ounces your answer is 426.67
8 0
3 years ago
-14 as a quotient of two intergers
givi [52]
-28 / 2 could be an answer
7 0
3 years ago
Read 2 more answers
a cold front came in today and the temperature dropped 30 degrees. Write an algebraic expression to explain the new temperature.
Komok [63]

Answer:

The algebraic equation describing the above

X+y= x-30

Step-by-step explanation:

The initial temperature of the environment= x degrees

Temperature of the front= y degrees

the environment dropped 30 degrees, means loosed 30 degrees.

The final temperature f the environment= x-30

The algebraic equation describing the above

X+y= x-30

6 0
3 years ago
Please help!!!Water flows through a pipe at a rate of 620 gallons every 5.5 minutes. Express this rate of flow in cups per secon
cestrela7 [59]

Answer:

30 cups/second

Step-by-step explanation:

620 gallons = 9,920 cups

5.5 minutes = 330 seconds

9,920/330 = ~30

7 0
3 years ago
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