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3 years ago

Is college math a lot of triangles? ( please answer)

Mathematics

1 answer:

gayaneshka [121]3 years ago

8 0

Answer:A triangle is a three-sided figure whose angles always add up to 180°. Thus, ∠x +∠y + ∠z = 180°.

The largest angle of a triangle is opposite its longest side.

On the SAT, the triangle to the left would be referred to as triangle abc or ∆abc.

To find the perimeter of the triangle, add up all the sides (a + b + c).

To find the area of any triangle, use the formula, (1⁄2)bh. The height must be perpendicular to the base.

Two triangles are similar if their angles have the same measure. The triangles therefore have the same shape, and their sides will be in proportion.

Triangles are said to be congruent if they have the same shape and size.

Equilateral Triangles

Equilateral Triangle

An equilateral triangle has three equal sides. Thus: a = b = c.

An equilateral triangle has three angles are also equal. Thus, ∠x = ∠y = ∠z.

Since the angles of a triangle always add up to 180°, each angle of an equilateral triangle must also equal 60°. Thus, ∠x = ∠y = ∠z = 60°.

Step-by-step explanation:

You might be interested in

Find the domain of the function f(x)=<img src="https://tex.z-dn.net/?f=%5Csqrt%7Bx%5E3-16x%7D" id="TexFormula1" title="\sqrt{x^3

Anon25 [30]

Answer:

Please check the explanation.

Step-by-step explanation:

Given the function

$f\left(x\right)=\sqrt{x^3-16x}$

We know that the domain of the function is the set of input or arguments for which the function is real and defined.

In other words,

Domain refers to all the possible sets of input values on the x-axis.

Now, determine non-negative values for radicals so that we can sort out the domain values for which the function can be defined.

$x^3-16x\ge 0$

as x³ - 16x ≥ 0

$\left(x+4\right)\left(x-4\right)\ge \:0$

Thus, identifying the intervals:

$-4\le \:x\le \:0\quad \mathrm{or}\quad \:x\ge \:4$

Thus,

The domain of the function f(x) is:

$x\left(x+4\right)\left(x-4\right)\ge \:0\quad :\quad \begin{bmatrix}\mathrm{Solution:}\:&\:-4\le \:x\le \:0\quad \mathrm{or}\quad \:x\ge \:4\:\\ \:\mathrm{Interval\:Notation:}&\:\left[-4,\:0\right]\cup \:[4,\:\infty \:)\end{bmatrix}$

And the Least Value of the domain is -4.

3 0

3 years ago

What is the value of x?

hram777 [196]

Sum of angles of a triangle = 180°

91 + 10x - 4 + 8x +3 = 180
18x + 90 = 180
18x = 90
x = 5°

6 0

4 years ago

Read 2 more answers

Madison enjoys the game of golf. He knows that he will one-putt a green 15% of the time, two-putt 20% of the time, three-putt 35

scoundrel [369]

Answer:

The formula to calculate standard deviation from probability is \sqrt(n*p*(1-p)). n is the sample size, and 200 in this case (number of putts for practice). p is 80% or 0.8, the probability that he can make it. So the standard deviation is \sqrt(200*0.8*(1-0.8)=\sqrt(200*0.8*0.2)=\sqrt(16)=4.

6 0

3 years ago

What is the solution of 2x/5−x/2=40 ?

mrs_skeptik [129]

2x/5 - X/2 = 40
LCD = 10

2•(2x/5) - 5•(X/2) = 40
4x/10 - 5x/10 = 40
4x-5x/10 = 40
-X/10 = 40
10•(-X/10) = 40 • 10
-X = 400
-X/-1 = 400/-1
X = -400.

I believe the solution is that X = -400.

7 0

4 years ago

Find the slope of the line tangent to the curve y equals x squaredy=x2 at the point left parenthesis negative 0.7 comma 0.49 rig

dlinn [17]

Answer:

Slope: -1.4

y = -1.4x - 0.49

Step-by-step explanation:

Slope: dy/dx = 2x

x = -0.7

dy/dx = -1.4

Equation of tangent:

y = mx + c

y = -1.4x + c

When x = -0.7, y = 0.49

0.49 = (-1.4)(-0.7) + c

c = -0.49

y = -1.4x - 0.49

7 0

3 years ago