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mrs_skeptik [129]
3 years ago
3

Help with this please

Mathematics
1 answer:
Vadim26 [7]3 years ago
5 0

the numerator (2) represents the exponent inside the radical.

the denominator (7) represents the root.

  \sqrt[7]{(7x^{3}y^{2})^{2}   }

= \sqrt[7]{49x^{6}y^{4}   }

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According to a company's website, the top 15% of the candidates who take the entrance test will be called for an interview. You
galben [10]

Answer:

The minimum score required for an interview is 77.252

Step-by-step explanation:

We solve this using z score formula

z = (x-μ)/σ, where x is the raw score, μ is the population mean, and σ is the population standard deviation.

Top 15% of the candidates is a ranking that is equivalent to = 100 - 15% = 85th percentile.

The z score of 85th percentile = 1.036

Mean = 70

Standard Deviation = 7

Minimum score = raw score = ???

Hence:

1.036 = x - 70/7

Cross Multiply

1.036 × 7 = x - 70

7.252 = x - 70

x = 70 + 7.252

x = 77.252

The minimum score required for an interview is 77.252

6 0
3 years ago
Find the diagonal of a television screen 30 inches wide by 35 inches tall.
marin [14]

Answer:

46.1 in

Step-by-step explanation:

Given data

Width= 30in

Height= 35in

To find the diagonal, we have to use the Pythagoras theorem

z^2= x^2+y^2

z^2= 30^2+ 35^2

z^2= 900+1225

z^2= 2125

z= √2125

z= 46.09

Hence the diagonal of the TV is 46.1 in

4 0
3 years ago
What are the possible values of x if (4x - 5)2 = 49? Check all that apply.<br> uw we we
kogti [31]

Answer:

x = - \frac{1}{2}, x = 3

Step-by-step explanation:

Given

(4x - 5)² = 49 ( take the square root of both sides )

4x - 5 = ± \sqrt{49} = ± 7 ( add 5 to both sides )

4x = 5 ± 7, thus

4x = 5 - 7 = - 2 ( divide both sides by 4 )

x = \frac{-2}{4} = - \frac{1}{2}

or

4x = 5 + 7 = 12 ( divide both sides by 4 )

x = 3

As a check

Substitute these values into the left side of the equation and if equal to the right side then they are the solutions.

x = - \frac{1}{2}

left side = (- 2 - 5)² = (- 7)² = 49 = right side ⇒ solution

x = 3

left side = (12 - 5)² = 7² = 49 = right side ⇒ solution

7 0
3 years ago
Select the correct answer. Evaluate the following expression when x = -4 and y = 4. A. B. C. D.
andriy [413]

The value of given expression when x=-4 and y=4 is 1250.

The expression is missing in the question which is \dfrac{x^6-x}{4y}.

We have to solve it for x= -4 and y = 4.

Now putting the value of x and y we get,

\dfrac{x^6-x}{4y}=\dfrac{(-4)^6-(-4)}{4}

\dfrac{x^6-x}{4y}=\dfrac{4096+4}{4}

\dfrac{x^6-x}{4y}=1250

Hence the value of given expression when x=-4 and y=4 is 1250.

For more details follow the link:

brainly.com/question/11897796

3 0
3 years ago
Which of the following is a possible measure of the area of a square rug?
ivolga24 [154]
I say B because if it's a square that means each side is equal...24 divided by four sides is 6 inches each
5 0
3 years ago
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