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3 years ago

Pick the expression that matches this description:

Mathematics

1 answer:

elena55 [62]3 years ago

8 0

Answer:

Choice C.

Step-by-step explanation:

3rd degree means that the expression must have power of 3 as the highest power.

So, choice b is wrong since it has highest power of 8. All the other choices have highest power of 3.

Binomial means expression that has two terms.

So, choices d and a are wrong because they have 3 terms each.

So, choice C is correct answer and also it has constant as 8.

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Right Triangles I been having trouble with gemotrey lately

photoshop1234 [79]

Answer:

x = 11√3

y = 22

Step-by-step explanation:

In a 30-60-90 triangle, the hypotenuse is twice the shortest side.

y = 22

The long side is √3 times the short side.

x = 11√3

If you wish to use trigonometric functions:

sin 30° = 11 / y

1/2 = 11 / y

y = 22

tan 30° = 11 / x

1 / √3 = 11 / x

x = 11√3

4 0

3 years ago

The endpoints of a diameter of a circle are A(3,1) and B(9,9). Find the area of the circle in terms of pie

andrey2020 [161]

Answer:

The answer is $25\pi$ units squared.

Step-by-step explanation:

If we find the diameter, we can find the radius by halving the diameter.

We can find the diameter by using the endpoints of the diameter.

The distance formula will give us the length between (3,1) and (9,9).

The distance formula is $\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$ .

The distance between the $x$ 's is 9-3=6.

The distance between the $y$ 's is 9-1=8.

The distance between the points is given by $\sqrt{6^2+8^2}=\sqrt{36+64}=\sqrt{100}=10$ .

The radius is therefore $\frac{10}{2}=5$ .

We are asked to find the area of this circle.

The formula for finding the area of a circle is $\pi r^2$ .

Since the radius is $5$ , then the area in terms of $\pi$ ,(pi), is $\pi (5)^2=\pi (25)$ .

The answer is $25\pi$ units squared.

4 0

3 years ago

A rectangle's width is twice as long as its length. If the perimeter is 36 in., what is the length?

Bumek [7]

Okay here:

Let L be the length and W the width of the rectangle.

1. w=2•L
2. 2L+2W=36

Substitute eq. 1 into eq. 2,

2L+2•(2•L)=36

2L+4L=36

6L=36

L=9

Not done yet, then from eq. 1,

W=2•L
W=2•9
W=18 <------- Your answer. :)

6 0

3 years ago

PLS HELP I WILL GIVE 15 POINTS OR MORE PLS NO SPAMMING PLS

Blizzard [7]

B,D,F / I’m pretty sure I did this not to long ago

3 0

3 years ago

Read 2 more answers

I need help please help

Helga [31]

Answer: J x=6; slope is undefined

Step-by-step explanation:

8 0

3 years ago