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3 years ago

An equilateral triangle has side lengths of 24. What is the height of the triangle?

Mathematics

2 answers:

mrs_skeptik [129]3 years ago

7 0

Answer: 20.78 (Work shown below)

arlik [135]3 years ago

4 0

sorry wrong answer i don't know how to remove

Step-by-step explanation:

Pythagorean theorem

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We can find the length of DE using the Pythagorean Theorem:

prohojiy [21]

What's the difference between A) and C)??
There should be an E) because the correct answer would be in either of these forms:
${DE}^{2} = {(4 - 1)}^{2} + {(1 - 3)}^{2} \: \: or \\ DE = \sqrt{( {3}^{2} + {2}^{2} )} \: \: or \\ {DE}^{2} = {(4 - 1)}^{2} + {(3 - 1)}^{2}$

6 0

3 years ago

Read 2 more answers

Question 8 I don’t get

rjkz [21]

Answer:

Y=4x

Y is total profita

X is how many she sells

6 0

3 years ago

18 of the last 30 cars passed you were black. what is the probability the next car will be black?

Nutka1998 [239]

18/30 simplifies into 6/10 which then is put in decimal form of 0.6

7 0

3 years ago

7th Grade Math Please help -7 = 1/3 a Find the value of a

julsineya [31]

Answer:

$\huge\boxed{a=-21}$

Step-by-step explanation:

$-7=\dfrac{1}{3}a\to\dfrac{1}{3}a=-7\qquad|\text{multiply both sides by 3}\\\\3\!\!\!\!\diagup\cdot\dfrac{1}{3\!\!\!\!\diagup}a=(-7)(3)\\\\a=-21$

4 0

3 years ago

6x - 2y = 26 2x + 3y = 5 Solve for X and Y

Softa [21]

Answer:

y is equal to -1

x is equal to 4

Step-by-step explanation:

The first thing you would do is multiply the bottom equation by a negative 3. You will get - 6x - 9y = -15. Keep the top equation the same. Both of the 6x's cancel. You then get -11y = 11 so y is equal to negative 1.

Since you have Y, you can now plug that in to any equation to find the value of x. -6x - 2(-1) = 26. You're left with 4. Plug both of the values into each equation to double check.

7 0

3 years ago