If AD equals 3X +3 CD equals X +9, what is the value of X?

Please help with this math problem! The intersection of GK and HL is point P. Which triangle must be an isosceles triangle? *loo

Whitepunk [10]

None of the triangles listed has two equal base angles or two equal side lengths, therefore: D. No triangle is isosceles.

<h3>Properties of an Isosceles Triangle</h3>

An isosceles triangle has two base angles having equal angle measure.
The side lengths that are opposite each of the equal base angles are also congruent to each other.

Thus, none of the triangles listed has two equal base angles or two equal side lengths, therefore: D. No triangle is isosceles.

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5 0

3 years ago

Mary wants to buy a small fence place around us semi circular garden demeanor of a semi circle is 18 feet Mary calculus that sh

nevsk [136]

Diameter of a semi circular garden = 18 feet

Radius of the garden :

$= \tt\frac{diameter}{2}$

$=\tt \frac{18}{2}$

$=\tt 9 \: feet$

Thus, the radius of the semi circular fence = 9 feet

We know that :

$\color{hotpink}\tt \: Circumference \: of \:a \: semi \: circle \color{plum}=\pi r$

Which means, the circumference of Mary's semi circular garden :

$=\tt \pi r$

(pi value = 3.14)

$= \tt3.14 \times 9$

$=\tt 28.26 \: \: feet$

Thus, the circumference of fence needed for the semi circular garden = 28.26 feet

28.26 can be rounded off to 28.30 and 28.30 is the same as 28.3

Thus, Mary's reasoning is correct.

Therefore, Mary's reasoning is correct which means she needs 28.3 feet of fence to surround her garden.

6 0

4 years ago

Pls answer quickly

noname [10]

I believe it’s A. -7

3 0

3 years ago

Read 2 more answers

the greatest common divisor of positive integers $m$ and $n$ is $8$. the least common multiple of $m$ and $n$ is $112$. what is

Tasya [4]

Given the greatest common divisor and the least common multiple, the least possible value of mn is 896

<h3>How to determine the least possible value of mn?</h3>

The given parameters are:

M and N are positive integers

Greatest common divisor = 8

Least common multiple = 112

As a general rule;

The product of the greatest common divisor and the least common multiple of numbers represent the product of the numbers

This means that

mn = Greatest common divisor * Least common multiple

So, we have

mn = 8 * 112

Evaluate

mn = 896

Hence, the least possible value of mn is 896

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8 0

1 year ago

Please help me....Use the Pythagorean identity

RideAnS [48]

Using the Pythagorean identity, the value of the cosine ratio is $\cos(\theta_1) = \frac{84}{85}$

<h3>How to determine the cosine ratio?</h3>

The given parameter is:

$\sin(\theta_1) = -\frac{13}{85}$

By the Pythagorean identity, we have:

$\sin^2(\theta_1) + \cos^2(\theta_1) = 1$

So, we have:

$(-\frac{13}{85})^2 + \cos^2(\theta_1) = 1$

This gives

$\cos^2(\theta_1) = 1 - (-\frac{13}{85})^2$

Evaluate

$\cos^2(\theta_1) = 1 - \frac{169}{7225}$

Take LCM

$\cos^2(\theta_1) = \frac{7225 -169}{7225}$

This gives

$\cos^2(\theta_1) = \frac{7056}{7225}$

Take the square root of both sides

$\cos(\theta_1) = \pm \frac{84}{85}$

Cosine is positive in the fourth quadrant.

So, we have:

$\cos(\theta_1) = \frac{84}{85}$

Hence, the cosine value is $\cos(\theta_1) = \frac{84}{85}$

Read more about Pythagorean identity at:

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4 0

3 years ago