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laiz [17]
2 years ago
5

A triangle has a base length of 6ac2 and a height 3 centimeters more than the base length. Find the area of the triangle if a =

2 and c = 3.
Mathematics
1 answer:
Yuki888 [10]2 years ago
5 0

A triangle has a base length of and a height more than the base length. Find the area of the triangle if and .

A triangle has a base length of 6ac2 and a height 3 centimeters more than the base length. Find the area of the triangle if a=2 and c=3.

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PLEASE PLEASE PLEASE HELP
Eduardwww [97]

first make two triangles using M , so there iwll be 90-45-45, and 30-60-90 then use the side rules of those special triangles

6 0
3 years ago
Consider the function f(x)= 2/5x-4
Gre4nikov [31]

Answer: a) \frac{5}{2}x+10=f^{-1}(x)=g(x)

Step-by-step explanation:

Since we have given that

f(x)=\frac{2}{5}x-4

a.) Find the inverse of f(x) and name it g(x).

Let f(x) = y

So, it becomes

y=\frac{2}{5}x-4

Switching x to y , we get

x=\frac{2}{5}y-4

5x=2y-20\\\\5x+20=2y\\\\\frac{5x+20}{2}=y\\\\\frac{5}{2}x+10=y\\\\\frac{5}{2}x+10=f^{-1}(x)=g(x)

b) . Use composition to show that f(x) and g(x) are inverses of each other.

\mathrm{For}\:f=\frac{2}{5}x-4\:\\\\\mathrm{substitute}\:x\:\mathrm{with}\:g\left(x\right)=\frac{5}{2}x+10\\\\=\frac{2}{5}\left(\frac{5}{2}x+10\right)-4\\\\=x

Similarly,

\mathrm{g\left(x\right)=\frac{5}{2}x+10,\:f\left(x\right)=\frac{2}{5}x-4,\:g\left(x\right)\circ \:f\left(x\right)}\\\\\mathrm{For}\:g=\frac{5}{2}x+10\:\mathrm{substitute}\:x\:\mathrm{with}\:f\left(x\right)=\frac{2}{5}x-4\\\\=\frac{5}{2}\left(\frac{2}{5}x-4\right)+10\\\\=x

so, both are inverses of each other.

c) Draw the graphs of f(x) and g(x) on the same coordinate plane.

As shown below in the graph , Since for inverse function we need an axis of symmetry i.e. y=x

And both f(x) and g(x) are symmetry to y=x.

∴ f(x) and g(x) are inverses of each other.


5 0
3 years ago
Help! (Math and area!!)
LenKa [72]

Answer:

1.) Triangle is <u>1/2 x b x h (Which is option C)</u>

2.) Rhombus is<u> ½ × d1 × d2. (Which is option A)</u>

3.) Trapezoid is <u>½(b 1+b 2)h or (b1 + b2)h/2 (Which is option B)</u>

4.) Parallelogram is <u>base x height (Which is option D)</u>

Step-by-step explanation:

6 0
3 years ago
What information could be added to the following triangles in order to prove them
Nikolay [14]

Answer:

A.

<em>Brainliest, please!</em>

Step-by-step explanation:

In order to prove two triangles similar by AA, two angles in one triangle must be congruent to the opposite angles in the other. A is the only option that works as B and C are sides, which aren't relevant, and D, while an angle, doesn't make sense.

8 0
3 years ago
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Mary has $40\%$ fewer marbles than Jolie. If they combine all their marbles in a single bag, what percent of the marbles in the
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Google the question to find the answer
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3 years ago
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