4x + 1 = 3x + 5 what’s the answer?

Are these similar ?

Ksju [112]

Answer:

Yes, by S-A-S

Step-by-step explanation:

Angle M and Angle A are congruent, and the labeled sides are proportionate to each other so they are similar.

4 0

2 years ago

Hi guys, can anyone help me with this triple integral? Many thanks:)

Crank

Another triple integral. We're integrating over the interior of the sphere

$x^2+y^2+z^2=2^2$

Let's do the outer integral over z. z stays within the sphere so it goes from -2 to 2.

For the middle integral we have

$y^2=4-x^2-z^2$

x is the inner integral so at this point we conservatively say its zero. That means y goes from $-\sqrt{4-z^2}$ and $+\sqrt{4-z^2}$

Similarly the inner integral x goes between $\pm-\sqrt{4-y^2-z^2}$

So we rewrite the integral

$\displaystyle \int_{-2}^{2} \int_{-\sqrt{4-z^2}}^{\sqrt{4-z^2}} \int_{-\sqrt{4-y^2-z^2}}^{\sqrt{4-y^2-z^2}} (x^2+xy+y^2)dx \; dy \; dz$

Let's work on the inner one,

$\displaystyle\int_{-\sqrt{4-y^2-z^2}}^{\sqrt{4-y^2-z^2}} (x^2+xy+y^2)dz$

There's no z in the integrand, so we treat it as a constant.

$=(x^2+xy+y^2)z \bigg|_{z=-\sqrt{4-y^2-z^2}}^{z=\sqrt{4-y^2-z^2}}$

So the middle integral is

$\displaystyle\int_{-\sqrt{4-z^2}}^{\sqrt{4-z^2}}2(x^2+xy+y^2)\sqrt{4-y^2-z^2} \ dy$

I gotta go so I'll stop here, sorry.

7 0

2 years ago

Read 2 more answers

What is the percent of : 20 of 60

sergij07 [2.7K]

Answer:

our fraction is 33.333333333333/100, which means that 20/60 as a percentage is 33.3333%.

6 0

1 year ago

Read 2 more answers

What are all the factos of 36

oksano4ka [1.4K]

Hi there!

»»————-　★　————-««

I believe your answer is:

{1, 2, 3, 4, 6, 9, 12, 18, 36}

»»————-　★　————-««

Here’s why:

A factor is a whole number that is multiplied by another to have a product have another number.

⸻⸻⸻⸻

The Factors Are:

1 (1 * 36 = 36)
2 (2 * 18 = 36)
3 (3 * 12 = 36)
4 (4 * 9 = 36)
6 (6 * 6 = 36)
9 (9 * 4 = 36)
12 (12 * 3 = 36)
18 (18 * 2 = 36)
36 (36 * 1 = 36)

⸻⸻⸻⸻

»»————-　★　————-««

Hope this helps you. I apologize if it’s incorrect.

6 0

3 years ago

A tower is 200 ft tall to the nearest degree find the angle of elevation from a point of 50 feet from the base of the tower to t

Elodia [21]

Answer:

Step-by-step explanation:

What you have here is classic right triangle trig. The height of the tower is the height of a right triangle, and the point 50 feet from the base of the tower is the base of the triangle. The angle of elevation is the base angle that is NOT the right angle. The height is opposite the base angle, while the base is adjacent to the angle, so we need the tangent ratio to find the angle. Here's what we have:

$tan(\theta)=\frac{200}{50}$

When you are looking for a missing angle, you use the inverse of the angle on your calculator. To do this, hit the 2nd button, then tan, and what you see on your screen is

$tan^{-1}($

Enter 200/50 (or 4) and hit "enter" to find the missing angle. It comes out to 75.9 so 76 degrees.

3 0

3 years ago