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1 year ago

Which of the triangles shown are right triangles?

Mathematics

1 answer:

d1i1m1o1n [39]1 year ago

6 0

The right angle triangles are:

Triangle A has two acute angles and one ninety degree angle

Triangle d has two acute angles and one ninety degree angle.

<h3>What are right triangles?</h3>

A triangle is a three-sided polygon with three edges and three vertices. the sum of angles in a triangle is 180 degrees. A right angled triangle is a triangle in which one of its angles measure 90 degrees.

To learn more about triangles, please check: brainly.com/question/22949981

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The volume of a cylinder is given by the formula <img src="https://tex.z-dn.net/?f=V%2B%20%5Cpi%20r%5E2h" id="TexFormula1" title

n200080 [17]

V = $\pi r^{2}h$ where r is radius and h is height

so when radius is (x+8) and height is (2x+3),

volume = $\pi (x+8)^{2}(2x+3)$

4 0

3 years ago

Read 2 more answers

What is the cube root of 8x27?

larisa86 [58]

8 = 2^3
27 = 3^3
(2^3)*(3^3)=6^3
Cube root of 6^3 = 6

3 0

3 years ago

Read 3 more answers

Please help will mark brainliest for the right answer

hodyreva [135]

Answer:

a). x + y + 90° = 180°

b). x = 67°

y = 23°

Step-by-step explanation:

The sum of all angles in a triangle is 180°.

One of the angles in the figure is a right angle, or 90°. Therefore the sum of the three angles in the figure is:

x + y + 90 = 180

We are also told that x + 2 = 3y.

Rearranging that to isolate x gives us:

x = 3y - 2

Thake the first equation and substitute the above expression of in place of x:

x + y + 90° = 180°

(3y-2) + y + 90° = 180°

4y + 88° = 180°

4 y = 92°

y = 23°

To find angle x, use y = 23°

x = 3y - 2

x = 3*(23°) - 2

x = 67°

The sum 90° + 67° + 23° = 180°

4 0

2 years ago

Which expression is equivalent to x^4 + 4x^2 - 45?

Nikitich [7]

Answer:

$( {x}^{2} - 5)( {x}^{2} + 9) = 0$

Step-by-step explanation:

The given expresion is

${x}^{4} + 4 {x}^{2} - 45 = 0$

We can rewrite this as:

$({ {x}^{2}) }^{2} + 4 {x}^{2} - 45 = 0$

We obtained a quadratic equation in x²

Let us split the middle term to get:

$({ {x}^{2}) }^{2} + 9 {x}^{2} - 5{x}^{2} - 45 = 0$

We factor by grouping to get:

${x}^{2} ( {x}^{2} + 9) - 5( {x}^{2} + 9) = 0$

We factor further to get:

$( {x}^{2} - 5)( {x}^{2} + 9) = 0$

The correct answer is A.

6 0

2 years ago

Simplify. Rewrite the expression in the form k⋅y^n. (2y^4)^3

N76 [4]

Answer:

The answer is

Step-by-step explanation:

(2y⁴)³

Using the rules of indices

That's

So for the above expression we have

<h3> $( {2y^{4} })^{3} = {2}^{3} . {y}^{4 \times 3}$ </h3>

Simplify

We have the final answer as

Hope this helps you

5 0

3 years ago