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3 years ago

Fifteen times the square of a non-zero number is equal to 20 times number.

Mathematics

2 answers:

Paladinen [302]3 years ago

5 0

15 * x^2 = 20x

that's what the question discribed.
now solve for x

x = 4/3

STatiana [176]3 years ago

4 0

Let the number be x

15 × x² = 20 × x
⇒ 15x² = 20x
⇒ 15x² / x = 20
⇒ 15x = 20
⇒ x = 20/15
⇒ x = 4/3

The number is 4/3

Hope it helps!

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Give the null and alternative hypotheses in symbolic form that would be used in a hypothesis test of the following claim:

irakobra [83]

Answer:

Step-by-step explanation:

The null hypothesis is usually the default statement. The alternative is the opposite of the null and usually tested against the null hypothesis

In this case study,

The null hypothesis in would be that the mean time between clicks of the second hand on a particular clock is 1 second. In symbolic form it would be u = 1

The alternative hypothesis would be that the mean time between clicks of the second hand on a particular clock is 1 not second. In symbolic form, it would be: u =/ 1

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3 years ago

The bird population on an island is declining at a rate of 2.2% per year. If the population was 3500 in the year 2009, which is

Vinil7 [7]

Given:
2009 : 3,500 population
decrease of 2.2% per year.
100% - 2.2% = 97.8%

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The bird population in 2014 will be 3,131.57 or 3,132.

7 0

2 years ago

Read 2 more answers

You cut a piece of paper in half to get 1/4 of the paper. You repeat this four more times.

faust18 [17]

Answer:

The answer is 1/64

Step-by-step explanation:

The answer is 1/64 because if you multiply the denominator of 1/4 by 2 you get 1/8 then if you do it again 3 more times you get 1/16 then 1/32 then 1/64

3 0

3 years ago

Consider the following rational numbers -5.1 -5 1/3 -5 -5 3/5 list them in order from least to greatest

jok3333 [9.3K]

Answer:

-5.6, -5.3, -5.1, -5.

Step-by-step explanation:

Convert the first fraction to a decimal.

-5 1/3 is equal to -5.3333333333

Round to the nearest tenth.

-5.3333333333 rounded to the nearest tenth is -5.3.

-5 1/3 = -5.3.

Convert the second fraction to a decimal.

-5 3/5 is equal to -5.6.

The fraction is already rounded, so that's all for the second one.

-5 3/5 = -5.6.

The new set of numbers we have include -5.1, -5.3, -5, and -5.6.

We can now sort from least to greatest.

The first number is -5.6.

The second number is -5.3.

The third number is -5.1.

The fourth number is -5.

Listing the numbers -5.1, -5.3, -5, and -5.6 from least to greatest would result in -5.6, -5.3, -5.1, and finally -5.

3 0

2 years ago

Question 7 of 10

Sindrei [870]

Answer:

(2+5)2-52

=7× 2-52

=14-52

= -42

not in this list but that's right answer

6 0

3 years ago