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tigry1 [53]
3 years ago
7

Help please!!!!!!!!!!!!

Mathematics
1 answer:
Nady [450]3 years ago
8 0

Answer:

Step-by-step explanation:

a. 1 & 2

b. 3 & 5

c. 2/15

d. 2/5 x 5/3

e. 10/15= 2/3

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Check all of the answers that are in the solution set of the inequality.
blsea [12.9K]
Well, plug in all the values.

(sqrt)3>3

False. 3 would be more than it's square root.

(sqrt)9>3
3>3

This is false. 3 is not bigger than 3. They are equal.

(sqrt)15>3 

3.8729..... >3

That is true,

(sqrt)10>3

3.1622>3 

This true.

-3 and 0 would not work either.

So, 

"C" and "D" are correct solutions.

I hope this helps!
~kaikers


7 0
4 years ago
PLEASE HELP!!!!! A satellite telescope has a parabolic dish. Satellite signals are collected at the focal point (focus) of the
-BARSIC- [3]

The dish illustrates operations on a parabola.

The depth of the parabolish dish is 160 feet.

The bowl is said to be a parabola.

So, we have:

\mathbf{(x -h)^2 = 4p(y - k)}

Where:

\mathbf{Focus: p = 40}

\mathbf{Vertex:(h,k) = (0,0)}

From the question, the diameter is 160 feet.

So, the radius (r) is:

\mathbf{r = \frac{160}{2} = 80}

So, the coordinate of the depth of the parabola would be:

\mathbf{(x,y) = (60 + 100,y)}

\mathbf{(x,y) = (160,y)}

Substitute these values in \mathbf{(x -h)^2 = 4p(y - k)}

So, we have:

\mathbf{(160 - 0)^2 = 4 \times 40 \times (y -0)}

\mathbf{160^2 = 160y}

Divide both sides by 160

\mathbf{160 = y}

Rewrite as:

\mathbf{y = 160 }

Hence, the depth of the parabolish dish is 160 feet.

Read more about parabolas at:

brainly.com/question/4074088

3 0
3 years ago
Given f(x) = 6(1 - x), what is the value of f(-8)?
Vedmedyk [2.9K]

Answer:

<h2>f(-8) = - 42</h2>

Step-by-step explanation:

f(x) = 6(1 - x)

To find f(-8) substitute the value of x that's - 8 into f(x) that is for every x in f (x) replace it with - 8

We have

f(-8) = 6( 1 - 8)

= 6(-7)

We have the final answer as

<h3>f(-8) = - 42</h3>

Hope this helps you

7 0
4 years ago
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A number changed to 12.6 after it was rounded. To what place was the number rounded?
Fofino [41]
It was rounded to the tenths.
7 0
4 years ago
How do I find the volume of a square polyhedron
lawyer [7]

First, find the volume. For a square polyhedron, the formula for the volume is the following:

<span>Volume=length×width×height</span>

<span>Hope this helps.</span>

5 0
3 years ago
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