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3 years ago

Four times the sum of a number and 12 is 68

Mathematics

1 answer:

IgorC [24]3 years ago

6 0

Answer:

Step-by-step explanation:

Let x be the number:

4 * (x+12) = 68

x + 12 = 68 / 4 = 17

x = 17 - 12 = 5

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Evaluate AB for A = 5, B =-2, C = 4 and D = -6. 5/12 -5/12 -3/2 3/2

Nezavi [6.7K]

Answer:

AB = -10

Im confused is this what you wanted?

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3 years ago

Which of the following is the radical expression of a to the four ninths power ?

LuckyWell [14K]

Given expression in exponential form : $a^{\frac{4}{9} }$ .

We need to convert it into radical form.

Please note: When we convert an exponential to radical form, the top number goes in the exponent of the term and bottom number of the fraction goes in the radical sign to make it nth radical.

We can apply following rule:

$(a)^{\frac{m}{n}}= \sqrt[n]{x^m}$ .

Therefore,

$a^{\frac{4}{9} }= \sqrt[9]{a^4}$ .

Therefore, correct option is : D. ninth root of a to the fourth power.

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3 years ago

WHAT IS THE LENGTH!!!

Murljashka [212]

The figure is a trapezoid (or trapezium), and the exact length of the trapezoid is 5 units

<h3>How to determine the length?</h3>

The figure is a trapezoid with the following parameters:

Area = 107.95

Base= 12

Height = 12.7

Length = x

The area of a trapezoid is:

Area = 0.5 * (Base + Length) * Height

So, we have:

0.5 * (12 + Length) * 12.7 = 107.95

Evaluate the product

(12 + Length) * 6.35 = 107.95

Divide both sides by 6.35

12 + Length = 17

Subtract 12 from both sides

Length = 5

Hence, the length of the trapezoid is 5 units

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2 years ago

One small airplane has 44 seats. The flight crew sits in two of these seats. The remaining seats are divided equally into 7 rows

Amiraneli [1.4K]

The number of seats in each row is an illustration of mathematical expressions.

The numerical expression for the number of seats in each row is: $\mathbf{\frac{44 - 2}{7}}$
The number of seats in each row would be 6

The given parameters are:

$\mathbf{Total\ Seats = 44}$

$\mathbf{Flight\ Crew = 2}$

$\mathbf{Rows = 7}$

So, the remaining seat is calculated as:

$\mathbf{Remaining = Total\ Seats - Flight\ Crew }$

Substitute known values

$\mathbf{Remaining = 44 - 2}$

The number of seat in each row is calculated as:

$\mathbf{Seats = \frac{Remaining}{Rows}}$

Substitute known values

$\mathbf{Seats = \frac{44 - 2}{7}}$

Hence, the numerical expression for the number of seats in each row is:

$\mathbf{\frac{44 - 2}{7}}$

When the expression is solved, the number of seats in each row would be 6

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2 years ago

What is the approximate length of arc QR

Harlamova29_29 [7]

What arc QR?

Is there supposed to be a picture here?

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3 years ago