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3 years ago

The three side lengths of four triangles are given which triangle is a right triangle

Mathematics

1 answer:

Whitepunk [10]3 years ago

3 0

Answer:

Triangle 3: 3, 4 ,5

Step-by-step explanation:

Well, you can easily tell by 3, 4, 5 being a Pythagorean triple.

But you have to use the Pythagorean Theorem to solve this.

So you get the side lengths of the two shortest sides, and you add the squared versions of them together.

So: 3^2+4^2 and if that equals the biggest side:5^2 then it's a right triangle.

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If r(x) = 2 – x2 and w(x) = x – 2, what is the range of (w circle r) (x)?

VashaNatasha [74]

Answer:

$(-\infty, 0)$

Step-by-step explanation:

(w circle r) (x) is the composite function(w of r(x)), that is, w(r(x))[/tex]

We have that:

$r(x) = 2 - x^{2}$

$w(x) = x - 2$

Composite function:

$w(r(x)) = w(2 - x^{2}} = 2 - x^{2} - 2 = -x^{2}$

$-x^{2}$ is a negative parabola with vertex at the original.

So the range(the values that y assumes), is:

$(-\infty, 0)$

3 0

3 years ago

Read 2 more answers

............??? I need answers

jeka94

On #1, x= 62°
Because you would divide 124° by 2

On #2, x=139°
Because since it is the center point it is the same

Hope this helped :)

5 0

4 years ago

Which statements are true about squares? Select all that apply.

Daniel [21]

Answer: B, C, D

Step-by-step explanation:

Are correct:

B) Diagonals are perpendicular

C) Consecutive Angles are Supplementary

D) Diagonals bisect angles

Not correct:

A) Diagnols are congruent to sides is not correct the because diagonals of a square are congruent to each other, not to the sides

5 0

2 years ago

Sara used 6_1/2 packs of pencils in the first 1/2 of the year. At what rate is Sara using pencils?

Verizon [17]

13 packs a year. 6.50 (.50 comes from 1/2) since the question states that she uses 6_1/2 packs of pencils in the first “1/2” of the year we need to multiply the 6_1/2 by 2 and we get our answer.

5 0

2 years ago

Read 2 more answers

Answer this correctlyand get brainliest

krok68 [10]

Use trigonometry ratio to solve the problem, the ratio we use is tan ratio
tan α = $\dfrac{\text{opposite}}{\text{adjacent}}$

plug in the numbers to find α
tan α = $\dfrac{\text{opposite}}{\text{adjacent}}$
tan α = $\dfrac{500}{400}$
tan α = $\dfrac{5}{4}$
tan α = 1.25
α = tan⁻¹ (1.25)
α = 51.340...
α = 51.3

The answer is second option

3 0

3 years ago