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musickatia [10]
3 years ago
8

Write the expression as a square of a monomial.

Mathematics
1 answer:
frozen [14]3 years ago
8 0

Answer:

The square of a monomial is (9x^2)^2

Step-by-step explanation:

Consider the provided monomial.

81x^4

We need to Write the expression as a square of a monomial.

The above expression can be written as:

9\times 9\times x^2\times x^2

9^2(x^2)^2

(9x^2)^2

Hence, the square of a monomial is (9x^2)^2

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A number divisible by 5 but not by 2​
Anna11 [10]

Answer:

5

Step-by-step explanation:

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Evgesh-ka [11]

Answer:

18.266

Step-by-step explanation:

6 0
3 years ago
13 + 2v - 8 + 6 &gt; -7 - v please simplify and explain IN ONLY NUMBERS NO WORDS
insens350 [35]

Answer:

v > - 6

Step-by-step explanation:

13 + 2v - 8 + 6 > -7 - v (calculate the sum of difference)

= 11 + 2v>-7-v (move variable to the left-hand side and change its sign and move constant to the right-hand side and change its sign)

= 2v + v > - 7 - 11 (collect like items and calculate the difference)

= 3v>-18 (divide both sides of the inequality by 3)

=v > - 6

*in parentheses is written what to do to get the next number*

6 0
3 years ago
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The cost of a daily newspaper varies from city to city. However, the variation among prices remains steady with a standard devia
My name is Ann [436]

Answer:

|t| =|-0.96|=0.96< 2.718

since calculated' t' value is less than tabulated value 't'.

we accept null hypothesis at 1 % level of significance.

The data support the claim that the mean cost of a daily news paper is  $1.00

Step-by-step explanation:

<u>Step:-(1)</u>

Given the sample size n = 12

Given Twelve costs yield a mean cost of $0.95 with a standard deviation of $0.18

mean of the sample(x⁻) = $0.95

Standard deviation of sample (S) = $0.18

Given claim that the mean cost of a daily newspaper is $1.00.

The mean of the population 'μ' =  $1.00.

<u>Null hypothesis:</u>-H₀:'μ' =  $1.00.

<u>Alternative hypothesis</u>: H₁:'μ' ≠  $1.00.

<u>level of significance ∝ = 0.01</u>

<u>Step2:-</u>

<u>The test statistic </u>

t = \frac{x^{-}-u_{0}  }{\frac{S}{\sqrt{n} } }

t = \frac{0.95-1 }{\frac{0.18}{\sqrt{12} } }

on calculation, we get

t = -0.96

|t| =|-0.96|=0.96

Degrees of freedom γ = n-1 = 12-1 =11

tₐ =  2.718

Calculated value t = 0.96

Tabulated value t at 0.01 level for 11 degrees for two tailed test = 2.718

since calculated' t' value is less than tabulated value 't'.

<u>conclusion</u>:-

<u>we accept null hypothesis at 1 % level of significance.</u>

<u>The data support the claim that the mean cost of a daily news paper is  $1.00</u>

3 0
3 years ago
(4x-5) (4x+5) <br><br> Expand and simplify
goldfiish [28.3K]

Step-by-step explanation:

(4x-5)(4x+5)

multiply each

4x×4x=16x^2

4x×5=20x

-5×4x= - 20x

-5×5= -25

16x^2+20x-20x-25

16x^2-25

3 0
3 years ago
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