2 years ago

Use the coordinate plane to help you identify the length of each leg then use the Pythagorean Theorem to find the length of CD

Mathematics

1 answer:

mihalych1998 [28]2 years ago

5 0

Answer:

the answe is 10.30

Step-by-step explanation:

im also from k12 lol

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The area of a triangle is 16 square units. The base of the triangle is four more than the height of the triangle. What is the ba

sukhopar [10]

Let x=height. then base is x+4. plug what we know into the formula for the area of a triangle

A=½bh

16=½*(x+4)*(x)

32=x²+4x

x²+4x-32=0
(x+8)(x-4)=0
so x can be-8 our 4. when we plug-8 in for x we get a negative height. since a triangle cannot have a negative side length we discard-8 and try 4. height=4 and base=8

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What value of x is in the solution set of 3(x – 4) ≥ 5x 2?

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3(x-4) >= 5x^2 or this 2 from the end what mean ?

3x-12 >=5x^2

0>=5xˇ2 -3x +12

5x^2 -3x +12 =0

D = 9 -240 = -150 so what mean that this equation has not real solutions

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Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A pollster contacts 99 people

sertanlavr [38]

Answer:

The probability of getting someone in the 18-21 age bracket or someone who agreed to respond $= 0.365$

Step-by-step explanation:

The counts are as follows

Age Group No of people contacted No of refusals Total

18-21 88 8 96

22-29 240 42 282

Total 328 50 378

The probability of getting some one in the age bracket of 18-21 or some one who refused to respond is

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Use the coordinate plane to help you identify the length of each leg then use the Pythagorean Theorem to find the length of CD​

Use the coordinate plane to help you identify the length of each leg then use the Pythagorean Theorem to find the length of CD