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3 years ago

How do I solve this?

Mathematics

1 answer:

Vikentia [17]3 years ago

8 0

Answer:

need help too

Step-by-step explanation:

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[HELP] Are the diagonals of an isosceles trapezoid congruent?

erastovalidia [21]

Yes.

the properties of an isosceles trapezoid are:
- the bases are parallel
- opposite sides are congruent
- the angles on either side of the bases are congruent
- the diagonals are congruent

3 0

3 years ago

Need to find Value of x

Pie

180 = 3x + 5x + 2x +5
180 = 10x + 5
175 = 10x
x = 17.5

180 is how many degrees in a triangle

4 0

3 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

3 years ago

Read 2 more answers

U is the set of colleges in a country. A is the set of colleges that have a hockey team. B is the set of colleges that have a ph

mojhsa [17]

Answer: C

Step-by-step explanation: If B is the set of colleges that have a physics department.

B’ is the set of colleges that do not have a physics department.

U is the union, so we are going to put every element from A and B' together. It can be translated as OR.

A U B’ is the set of elements in a country that have a hockey team (A) or do not have a physics department (B’) .

8 0

3 years ago

What is the correct Unit Rate for 54 pints of juice in 3 containers? *

PilotLPTM [1.2K]

Answer:

0.0555 containers

Step-by-step explanation:

We need to find the unit rate for 54 pints of juice in 3 containers. It means we need to find quantity of juice in 1 container.

54 pints = 3 containers

1 pint = $\dfrac{1}{18}\ \text{containers}$

1 pint = 0.0555 containers

So, unit rate is 0.0555 containers.

7 0

3 years ago