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Veronika [31]
3 years ago
9

Can you help me with this question

Mathematics
2 answers:
Sphinxa [80]3 years ago
7 0

Answer:

n * 7

7n

Step-by-step explanation:

both are multiplying 7 and the number n

Alla [95]3 years ago
6 0

Answer:

C and D

Step-by-step explanation:

A product in math is multiplication. Therefore, the product of a number and 7 can be represented using n*7 and 7n.

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The scores of individual students on the american college testing (act) program composite college entrance examination have a no
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The sampling distribution standard deviation is the population standard deviation divided by the root of the sample size.

sampling distribution standard deviation = 6.00/√36 = 1.00

8 0
3 years ago
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The current (I) in an electrical conductor varies inversely as the resistance (r) of the conductor. The current is 2 amperes whe
Oksanka [162]
The current is 4 amperes
6 0
3 years ago
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Here are summary statistics for randomly selected weights of newborn​ girls: nequals202​, x overbarequals28.3 ​hg, sequals6.1 hg
Lorico [155]

Answer:

The confidence interval is 27.5 hg less than mu less than 29.1 hg

(A) Yes, because the confidence interval limits are not similar.

Step-by-step explanation:

Confidence interval is given as mean +/- margin of error (E)

mean = 28.3 hg

sd = 6.1 hg

n = 202

degree of freedom = n-1 = 202-1 = 201

confidence level (C) = 95% = 0.95

significance level = 1 - C = 1 - 0.95 = 0.05 = 5%

critical value corresponding to 201 degrees of freedom and 5% significance level is 1.97196

E = t×sd/√n = 1.97196×6.1/√202 = 0.8 hg

Lower limit = mean - E = 28.3 0.8 = 27.5 hg

Upper limit = mean + E = 28.3 + 0.8 = 29.1 hg

95% confidence interval is (27.5, 29.1)

When mean is 28.3, sd = 6.1 and n = 202, the confidence limits are 27.5 and 29.1 which is different from 27.8 and 29.6 which are the confidence limits when mean is 28.7, sd = 1.8 and n = 17

7 0
3 years ago
The diagonals of a kite _____.
Vikentia [17]

Answer:

A. Meet at a right angle.

Step-by-step explanation:

We should know the properties of kite.

(1) The diagonals of a kite meet at a right angle.

(2) Kites have exactly one pair of opposite angles that are congruent.

Therefore, the answer is A. Meet at a right angle.

Thank you.

5 0
3 years ago
Find the distance between the points ( – 7, – 6) and (1,9). If necessary, round your answer to the nearest tenth.
Kay [80]
The distance would be 17.

all you need to do is plug the points into the distance formula.
7 0
2 years ago
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