2 years ago

What is the value of y ?

Mathematics

1 answer:

Dmitry [639]2 years ago

4 0

Answer:

Step-by-step explanation:

Chords within a circle are proportional. Proportional means that they form equal ratios. To solve for y, set up a proportion.

The ratios we will create will be $\frac{long}{short} =\frac{long}{short}$ where each long and short form an angle.

So write:

$\frac{12}{8} =\frac{y}{4}$

To solve, cross multiply numerator with denominator.

12(4) = 8(y)

48=8y

6=y

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2 years ago

1. A metal cylinder is measured to have a length of 5.00 cm and a diameter of 1.26 cm. Compute the volume of the cylinder in cm3

vichka [17]

Answer:

vol = 6.23 cm3

Step-by-step explanation:

dia = 1.26 cm

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vol = area * L

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3 years ago

What is the measure of angle w°? Show all work.

Korolek [52]

It’s 100 I’m pretty sure

3 0

2 years ago

What is the length of the hypotenuse? If necessary, round to the nearest tenth.

azamat

By the Pythagorean theorem,

$a^{2}+12^{2}=13^{2}\\\\a^{2}+144=169\\\\a^{2}=25\\ \\ a=\boxed{5}$

4 0

2 years ago

In the diagram below segment DEF is shown(since all three letters are shown, they are collinear). If DE=3x+2, EF= x+5, and DF= 2

amm1812

The value of $x$ is 4.

By Geometry, we know that line segment $DF = DE + EF$ , which is equivalent to:

$DF = 3\cdot x + 2 + x + 5$

$DF = 4\cdot x + 7$ (1)

Now we solve algebraically the resulting expression.

If we know that $DF = 23$ , then we solve the equation for $x$ :

$4\cdot x + 7 = 23$

$4\cdot x = 16$

$x = 4$

The value of $x$ is 4.

We kindly invite to see this question on line segments: brainly.com/question/23297288

6 0

2 years ago