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3 years ago

What is the value of n?

Mathematics

1 answer:

vfiekz [6]3 years ago

3 0

The 2 segments of each chord, when multiplied by each other need to equal each other.

In the image one chord is made up of 4 cm and 6 cm and the 2nd chord is made up of 3 cm and n

Setting p the equation to solve for n you have:

4 x 6 = 3 x n

Simplify:

24 = 3n

Divide both sides by 3:

n = 24/3

n = 8 cm

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AysviL [449]

Answer:

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7 0

3 years ago

Hello can you please help me posted picture of question

ollegr [7]

The correct option is (B) 4x^2 + 18x + 18

Explanation:
The area is given as:
(3+2x)(6+2x)

To find the polynomial just simplify it.
3(6+2x) + 2x(6+2x)

18 + 6x + 12x + 4x^2

4x^2 + 18x + 18

7 0

3 years ago

If you add 21 to my number and then multiply the result by 3, you will get 84 more than two-thirds of my number. Find my number.

Ksivusya [100]

Based on the calculations, the unknown number is equal to $\frac{-45}{7}$

Let the unknown number be x.

<h3>How to find an unknown number:</h3>

Translate the word problem into an algebraic expression, we have;

Adding 21 to the unknown number:

$21 +x$

Multiplying the result by 3:

$3\times (21+x)$

84 more than two-thirds of the unknown number:

$\frac{2x}{3} +84$

Equating the equations, we have:

$3\times (21+x) = \frac{2x}{3} +84\\\\43+3x=\frac{2x}{3} +84$

Cross-multiplying, we have:

$43+3x=\frac{2x}{3} +84\\\\129+9x=2x+84\\\\9x-2x=84-129\\\\7x=-45\\\\x=\frac{-45}{7}$

Read more on word problems here: brainly.com/question/13170908

5 0

3 years ago

Find the solution of each equation using the given replacement set please help ASAP

sertanlavr [38]

Answer:

Sorry I don't know this answer

5 0

3 years ago

−4x−7+10x=−7+6x how many solutions

qwelly [4]

Step-by-step explanation:

$-4x-7+10x=-7+6x\\\\(-4x+10x)-7=-7+6x\\\\6x-7=-7+6x\qquad\text{subtract}\ 6x\ \text{from both sides}\\\\-7=-7\qquad\bold{TRUE}\\\\Answer:\ \text{Infinitely many solutions}$

3 0

3 years ago