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tatiyna
3 years ago
9

What are two ratios that are equivalent to 3:11

Mathematics
2 answers:
Anika [276]3 years ago
5 0
30:110 and 90:330 are correct
Artist 52 [7]3 years ago
3 0
Ratios that are equivalent to 3:11 are 6:22 and 9:33.

Hope this helps!
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Which of the following numbers will produce a rational number when multiplied by 1/5?
Anuta_ua [19.1K]
D: -2/3 
That's your answer...
Hope this helps! Please give me a 5-rate and a thanks! (and brainliest) thanks!
3 0
3 years ago
What is the value of 7 to the fifth power? A.16,807 B.35 C.2,401 D.78,125
ahrayia [7]

A. is your answer

you could always double check with a calculator

8 0
3 years ago
Read 2 more answers
A pyramid has a square base and a height of 6 ft. The volume of the pyramid is 162 ft^3. Let s be the length of a side of the py
geniusboy [140]

Answer:

(a)s^2\\(b)162=2s^2\\(c)s=9$ ft

Step-by-step explanation:

(a)Base Area

Side length of square base=s

Area of a Square of side length s=s^2$ ft^2

(b)

  • Height =6 ft
  • Volume=162 $ ft^3.

Volume of a Pyramid=\frac{1}{3}X$Base Area X Height

Substituting the given values, we have:

162=\frac{1}{3}Xs^2 X 6\\\\162=2s^2

(c)Solving the equation derived from (b)

162=2s^2\\$Divide both sides by 2\\s^2=81\\s^2=9^2\\s=9$ ft

Solving this equation shows that s =9 ft.

4 0
3 years ago
4. The results of testing a new drug on 1,000 people with a certain disease found that 510 of them improved when they used the d
Shalnov [3]

Answer:

It would not be reasonable to say that  more than half of the people with this disease would  improve if they used the new drug

Step-by-step explanation:

Data provided in the question:

Sample size,  n = 1000

Number of people improved when they used the drug = 510

Thus,

Probability that Number of people improved when they used the drug

= 510 ÷ 1000

= 0.510

Now,

margin of error, E = 2\times\sqrt{\frac{p(1-p)}{n}}

= 2\times\sqrt{\frac{0.510(1-0.510)}{1000}}

= 0.032 = 3.2%

Therefore,

Portion of 0.510 is likely to lie in the 3.2% of the actual value of population

And,

The lower portion can be as small as p - E

= 0.510 - 0.032

= 0.478 i.e 47.8% of the sample

Hence,

It would not be reasonable to say that  more than half of the people with this disease would  improve if they used the new drug

4 0
3 years ago
Find the value of z such that 0.96420.9642 of the area lies between −z−z and z. round your answer to two decimal places.
Brut [27]
If z represents the variable of the standard normal distribution curve N(0,1), which is symmetrical about z=0, then we look for
P(z)-P(-z)=0.9642=1-2P(-z) => P(-z)=(1-0.9642)/2=0.0179
=>
-z=-2.099192
=> z=2.099192
Check:
P(2.099192)-P(-2.099192)=0.9642  ok
7 0
3 years ago
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