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Anarel [89]
3 years ago
8

Which math sentence can be used to determine if this triangle is a right triangle?

Mathematics
2 answers:
mrs_skeptik [129]3 years ago
5 0

Answer:

B .(20)^2+(21)^2=(29)^2

Step-by-step explanation:

We are given that

Three sides of given triangle are 21, 20 and 29.

If a triangle is right triangle, the triangle satisfied the pythagorous theorem.

Pythagorous theorem:

(hypotenuse)^2=(base)^2+(Perpendicular\;side)^2

(29)^2=841

(20)^2+(21)^2=400+441=841

Hence , (29)^2=(20)^2+(21)^2

Answer: B .(20)^2+(21)^2=(29)^2

amm18123 years ago
4 0
A^2 + b^2 = c^2.....a and b are the legs and c is the hypotenuse

so u would use : 20^2 + 21^2 = 29^2
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If f(x)=x and g(x)=2, what is (f o g)(x)?
IgorC [24]

Answer:

= 2x

Step-by-step explanation:

6 0
3 years ago
Write a equation of the lines passes through the given points (-2,7) (1,1) the equation is?
vredina [299]

The point-slope form:

y-y_1=m(x-x_1)

m - slope

(x₁, y₁) - point

The formula of a slope:

m=\dfrac{y_2-y_1}{x_2-x_1}

We have the points (-2, 7) and (1, 1). Substitute:

m=\dfrac{1-7}{1-(-2)}=\dfrac{-6}{3}=-2

y-7=-2(x-(-2))\\\\\boxed{y-7=-2(x+2)}   <em>point-slope form</em>

\boxed{y=-2x+3}     <em> slope-intercept form</em>

\boxed{2x+y=3}       <em>standard form</em>

7 0
3 years ago
A hammock that hangs between two trees makes a parabola shape that has the equation y = 0.4(x- 3)² +1, where x is the distance f
34kurt

Answer:

A. The lowest point of the hammock is at the point 1 meters above the ground and 3 meters from one end of the hammock

B. The two trees are 6 meters away from one another

Step-by-step explanation:

The given equation of the parabola representing the hammock is as follows;

y = 0.4·(x - 3)² + 1

The general equation of a parabola is a·(x - h)² + k;

Where the coordinates of the vertex point of the parabola, which is the lowest (or highest, furthest) point on the vertex is (h, k) = (3, 1)

Therefore, we have;

A, The coordinates of the lowest point on the hammock is (3, 1)

Therefore, the lowest point of the hammock is at 1 meters above the ground and 3 meters from one end of the hammock

B.  Given that the distance from one end is "x", we have;

The height at which the hammock is attached is given as the point where x = 0 as follows;

Given that the vertex of the parabola represents the axis of symmetry of the parabola, we have that the horizontal distance from one end of the hammock to the vertex point of the parabola that the hammock forms is (3 - 0) meters = 3 meters

Therefore, by the definition of symmetry, the distance from the vertex point to the other end of the parabola that the hammock forms is also 3 meters

From which we have, the distance the two trees are from one another is 3 meters + 3 meters = 6 meters.

4 0
2 years ago
Plz help will mark brainliest :)
shepuryov [24]

Answer:

an odd    an even

Step-by-step explanation:

plz mark as brainliest. my first answer

3 0
3 years ago
What is the picture equal to? Help please
amm1812

25(3n - 2) \\  \\ 1. \: 25  \times 3n + 25  \times  - 2 \\ 2. \: 75n + 25 \times  - 2 \\ 3. \: 75n - 50

7 0
3 years ago
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