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denis23 [38]
3 years ago
10

I WILL AWARD BRAINLIEST FOR CORRECT ANSWER :)

Mathematics
1 answer:
Colt1911 [192]3 years ago
5 0

Answer:

The first one is correct

The second one is 20years

The third one is £8820

Step-by-step explanation:

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If x=5^a, find the value of 5x. How?
Yakvenalex [24]

Answer:

5x = 5^{(a+1)}

Step-by-step explanation:

Here is a problem with the concept of properties of the exponent.

We are given x = 5^{a} and we have to find the value of 5x.

Now, 5x = 5 \times 5^{a} {Since we are given that x = 5^{a}}

⇒ 5x = 5^{1} \times 5^{a} {Since we can write x = x^{1}}

⇒ 5x = 5^{(a+1)} {Since we know the formula of exponent as x^{m} \times x^{n} = x^{(m + n)}}

(Answer)

7 0
3 years ago
Tim has a large collection of books. The number of paperback books he own is 3 times less than 4 times the amount of hardcover b
SSSSS [86.1K]

Answer:

Tim has 90 hardcover books

7 0
3 years ago
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The area of a rectangle is 84 square inches. Its length and width are both whole numbers.
otez555 [7]

Answer:

2604sq inches

there you go

sorry im in a rush

5 0
3 years ago
Q 4.6: In a survey of 1,000 adults living in a big city, 540 participants said that they prefer to get news from the Internet, 3
Liono4ka [1.6K]

Answer:

<h2>Option E is correct.</h2>

Step-by-step explanation:

In a survey of 1,000 adults living in a big city, 540 participants said that they prefer to get news from the Internet, 330 prefer to watch news on TV, and 130 are rarely interested in the current news. We want to test if the proportion of people getting the news from the Internet is more than 50%. By generating the randomization distribution, we find that the p-value is 0.0057. Choose the correct statement interpreting the p-value.

A.If the proportion of people getting the news from the Internet is not equal to 0.5 then there is a 0.0057 chance of seeing the sample proportion as extreme as the survey results.

B. If the proportion of people getting the news from the Internet is not equal to 0.54 then there is a 0.0057 chance of seeing the sample proportion as extreme as the survey results.

C. If the proportion of people getting the news from the Internet is equal to 0.54 then there is a 0.0057 chance of seeing the sample proportion less extreme compared to the survey results. р

D. If the proportion of people getting the news from the Internet is equal to 0.54 then there is a 0.0057 chance of seeing the sample proportion as extreme as the survey results.

E. If the proportion of people getting the news from the Internet is equal to 0.5 then there is a 0.0057 chance of seeing the sample proportion as extreme as the survey results.

The correct interpretation of P value will be:

if the proportion of people getting the news from internet is equal to 0.5 then there is a 0.0057 chance of seeing the sample proportion as extreme as survey results.

<h2>Option E is correct.</h2>
4 0
3 years ago
-8(x-3y) when x=-2 and y=-4
seropon [69]
First let's put in the values. 

-8(-2-3·-4)

Solve using PEMDAS

Parentheses (Multiplication)

-8(-2+12)

Parentheses (Addition)

-8 · 10

Multiplication

-80

The answer is -80
6 0
3 years ago
Read 2 more answers
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