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ValentinkaMS [17]
3 years ago
13

Can someone help me with these two proof questions?

Mathematics
1 answer:
timurjin [86]3 years ago
6 0

The proofs of above Questions is in attachment !

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What is the area of the triangle whose vertices are (0,0), (3,0) and (0,4)?
Elden [556K]
Answer: 6

Since one of the points is at the origin, then you can take the number point on the x axis and multiply it by the point on the y axis, and you get 12. To find the area of a triangle, you must use base x height divided by 2. Divide 12 by 2 to get 6. 

Hope this helped!
3 0
3 years ago
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Given △ABC ∼ △LMN, find LNLN.
svlad2 [7]

Answer:

Use mathpapa.com and photomath!!!!!

Step-by-step explanation:

trust me you'll thank me later! Basically math papa helps you a ton, and photomath solves it for you and gives you all the work.

8 0
3 years ago
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How do you do this question?
mars1129 [50]

Answer:

I = ∫₀¹ eˣ dx

I = ∫₀¹ e⁻ˣ dx

Step-by-step explanation:

Trapezoidal rule will be an overestimate if the function is concave up.

We can determine this by looking at the graph, or by evaluating the second derivative.  If the second derivative is positive on the interval, the function is concave up.

f(x) = eˣ

f'(x) = eˣ

f"(x) = eˣ

On the interval [0, 1], f(x) is concave up.

f(x) = e⁻ˣ

f'(x) = -e⁻ˣ

f"(x) = e⁻ˣ

On the interval [0, 1], f(x) is concave up.

f(x) = √x = x^½

f'(x) = ½ x^(-½)

f"(x) = -¼ x^(-³/₂)

On the interval [0, 1], f(x) is concave down.

f(x) = sin x

f'(x) = cos x

f"(x) = -sin x

On the interval [0, 1], f(x) is concave down.

7 0
3 years ago
86,456 estimation is?
goblinko [34]
I think around... 87,000
6 0
4 years ago
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An equation was created for the line of best fit from actual enrollment data. It was used to predict the dance studio enrollment
vova2212 [387]

Answer:

Step-by-step explanation:

5 0
2 years ago
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