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galina1969 [7]
3 years ago
7

(3a)^ 3 = This expression without exponents is

Mathematics
1 answer:
katovenus [111]3 years ago
5 0
If you need help on how to solve an equation go to math.way
They are able to help you solve this and show you have to work it out. 
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0.325 is _____ 100 percent.
dexar [7]

Answer:

0.00325

Step-by-step explanation:

0.325/100

8 0
3 years ago
Which statement is an example of the reflexive property of congruence?
hodyreva [135]

Answer:

B

Step-by-step explanation:

if you look you will see that the a is first in the

alfabet I was confused first but I figured it out.

4 0
3 years ago
Two business partners, Ellen and bob, Invested money in their business at a ratio of 8 to 9. Bob invested the greater amount. Th
antoniya [11.8K]

Answer:

Each person received 20 euros

6 0
3 years ago
Is this linear relationship a direct variation?
Talja [164]

Since the ratio of of second variable to the ratio of first variable remains constant i.e y/x =8 so, the linear relationship is direct variation.

Step-by-step explanation:

A relationship is said to have direct variation if ratio of second variable to the ratio of first variable remains constant.

A relationship is direct variation if y=kx\,\,or\,\, \frac{y}{x} =k where k is the constant.

Now checking if the given data is having direct variation or not.

x       y

3       24

4       32

5       40

6       48

Now finding y/x

if y=24 and x = 3 then y/x = 24/3 = 8

if y=32 and x = 4 then y/x =32/4=8

if y=40 and x = 5 then y/x =40/5 =8

if y=48 and x = 6 then y/x =48/6= 8

Since the ratio of of second variable to the ratio of first variable remains constant i.e y/x =8 so, the linear relationship is direct variation.

Keywords: Direct Variation

Learn more about Direct Variation at:

  • brainly.com/question/10708697
  • brainly.com/question/2495851
  • brainly.com/question/5069437

#learnwithBrainly

5 0
3 years ago
A company manufactures 2,000 units of its flagship product in a day. The quality control department takes a random sample of 40
shepuryov [24]

Answer:

B

Step-by-step explanation:

The recommended sample size n for point estimates is:

n = NX / (N + X - 1)

where N is the population size, and X is defined as:

X = Z² p (1 - p) / E²

where Z is the critical value, p is the sample proportion, and E is the margin of error.

Assume a confidence level of level of 95% and a margin of error of 5%.

α = 0.05, Z(α/2) = 1.96

E = 0.05

Of the 40 units tested, 2 had lifespans less than 26 days.  So the proportion is:

p = 2/40 = 0.05

Therefore:

X = (1.96)² (0.05) (1 - 0.05) / (0.05)²

X = 73

Given N = 2000:

n = (2000) (73) / (2000 + 73 - 1)

n = 70.45

Rounding, the recommended sample size is 70.

5 0
4 years ago
Read 2 more answers
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