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jarptica [38.1K]
3 years ago
7

What is the value of m in the figure below? If necessary, round your answer to

Mathematics
1 answer:
Anastasy [175]3 years ago
4 0
<h3>Answer: A) 6.7</h3>

=================================================

Work Shown:

Use the geometric mean formula to find that BD = 6

BD = geometric mean of AD and DC

BD = sqrt(AD*DC)

BD = sqrt(12*3)

BD = 6

Then use the pythagorean theorem to find the missing side for triangle BCD

a^2+b^2 = c^2

(CD)^2 + (BD)^2 = (BC)^2

3^2 + 6^2 = m^2

m^2 = 45

m = sqrt(45)

m = 6.70820393249937 approximately

m = 6.7 after rounding to one decimal place

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Answer:

Area of triangle = 15 square units

Step-by-step explanation:

We need to find area of the triangle, given the vertices:

A=(4,0)

B=(1,5)

C=(7,5)

The formula used is: Area\:of\:triangle=\frac{1}{2}(x_1(y_2-y_3)+x_2(y_3-y_1)+x_3(y_1-y_2))

We have: x_1 =4, y_1 =0, x_2 =1, y_2=5, x_3=7 , y_3=5

Putting values and finding area

Area\:of\:triangle=\frac{1}{2}(x_1(y_2-y_3)+x_2(y_3-y_1)+x_3(y_1-y_2))\\Area\:of\:triangle=\frac{1}{2}(4(5-5)+1(5-0)+7(0-5))\\Area\:of\:triangle=\frac{1}{2}(4(0)+1(5)+7(-5))\\Area\:of\:triangle=\frac{1}{2}(0+5-35)\\Area\:of\:triangle=\frac{1}{2}(-30)\\Area\:of\:triangle=-15

We will be ignoring negative sign, because area of triangle is positive.

So, Area of triangle = 15

3 0
3 years ago
Free
Mekhanik [1.2K]

Answer:

the answer is 2 you add one and the other one and it makes 2

Step-by-step explanation:

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aliina [53]

Answer:

volume = 10,082.5 in³

Step-by-step explanation:

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slava [35]

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Step-by-step explanation:

12/6=2

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so

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i think this is what your teachers means, lmk if thats wrong

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3 years ago
Compute the probability of randomly selecting an eight or jack
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6 0
3 years ago
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