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Grace [21]
3 years ago
12

This is for my summer packet...please help!

Mathematics
1 answer:
a_sh-v [17]3 years ago
5 0

need to do a ratio

(x+3)/5 = 2x/8

now cross multiply

8x+24 = 10x

24=2x

x=12

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Two altitudes of a triangle have lengths $12$ and $14$. What is the longest possible integer length of the third altitude
nataly862011 [7]

The longest possible altitude of the third altitude (if it is a positive integer) is 83.

According to statement

Let h is the length of third altitude

Let a, b, and c be the sides corresponding to the altitudes of length 12, 14, and h.

From Area of triangle

A = 1/2*B*H

Substitute the values in it

A = 1/2*a*12

a = 2A / 12 -(1)

Then

A = 1/2*b*14

b = 2A / 14 -(2)

Then

A = 1/2*c*h

c = 2A / h -(3)

Now, we will use the triangle inequalities:

  • a < b+c

2A/12 < 2A/14 + 2A/h

Solve it and get

h<84

  • b < a+c

2A/14 < 2A/12 + 2A/h

Solve it and get

h > -84

  • c < a+b

2A/h < 2A/12 + 2A/14

Solve it and get

h > 6.46

From all the three inequalities we get:

6.46<h<84

So, the longest possible altitude of the third altitude (if it is a positive integer) is 83.

Learn more about TRIANGLE here brainly.com/question/2217700

#SPJ4

8 0
2 years ago
M=x^3+y^2-6(x-y)-2021
bagirrra123 [75]

Answer:

Step-by-step explanation:

m=x^3+y^2-6(x-y)-2021

distribute: 6x-6y

now you have m=x^3 + y^2 - 6x - 6y - 2021

7 0
3 years ago
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12 meter multiplied by 1.5 meters​
VladimirAG [237]

the answer is 18 meters

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4 years ago
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Wewaii [24]
They are basically like groups. Take -3x+2x , Just do -3 +2 = -1 and then just add the x. So -1x. Next you have -5y+10y . Just do -5 + 10 = 5 and remember to add the x on so your final answer should be -1x + 5y 
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4 years ago
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What is the approximate volume of the sphere?
iVinArrow [24]
The correct answer is 523.33 mm^3

//p.s I already took the test and this was the correct answer//

hope I helped :)
3 0
3 years ago
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