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storchak [24]
4 years ago
10

Which graphs represent functions?

Mathematics
1 answer:
pogonyaev4 years ago
4 0
I would say the answer is c. only graph d ,, think of the line test to see if a graph is a function or not
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1. Using the law of sines for the diagram below find the length of AB.​
s344n2d4d5 [400]
See photo hope it helps

8 0
3 years ago
QUEESSSTTTIIIIOOOOONNNNNNN
Ivenika [448]

You look, either on line or in an actual book, to
find how many miles are equal to 1 kilometer.

Then you use that number like this:

       (7 kilometers) x (0.6214 mile/kilometer)  =  4.25 miles (rounded)

4 0
4 years ago
Consider the polynomials p(x) = 3x + 27x^2 and q(x)= 2 . Find the x -coordinate(s) of the point(s) of intersection of these two
Tom [10]

Answer:

The x -coordinate(s) of the point(s) of intersection of these two polynomials are x=\frac{2}{9}\approx0.2222,\:x=-\frac{1}{3}\approx-0.3333

The sum of these x -coordinates is \frac{2}{9}+\left(-\frac{1}{3}\right)=-\frac{1}{9}

Step-by-step explanation:

The intersections of the two polynomials, p(x) and q(x), are the roots of the equation p(x) = q(x).

Thus, 3x + 27x^2=2 and we solve for x

3x+27x^2-2=2-2\\27x^2+3x-2=0\\\left(27x^2-6x\right)+\left(9x-2\right)\\3x\left(9x-2\right)+\left(9x-2\right)\\\left(9x-2\right)\left(3x+1\right)=0

Using Zero Factor Theorem: = 0 if and only if = 0 or = 0

9x-2=0\\9x=2\\x=\frac{2}{9}

3x+1=0\\3x=-1\\x=-\frac{1}{3}

The solutions are:

x=\frac{2}{9}\approx0.2222,\:x=-\frac{1}{3}\approx-0.3333

The sum of these x -coordinates is

\frac{2}{9}+\left(-\frac{1}{3}\right)=-\frac{1}{9}

We can check our work with the graph of the two polynomials.

4 0
4 years ago
Brittney sewed together fabric triangles to make the quilt square shown below.
Snezhnost [94]

Answer:

6 in. per triangle & 24 in total (white squares only)

Step-by-step explanation:

 So, one side is 12 inches and each side is made up of one blue and one white. With this you can just divide each side by 2, getting 6. There are 4 sides so,

4 sides X 6 in. per each square= 24

Therefore, she used <u><em>24 in. in total</em></u> and 6 for each triangle.

Hoped this helped!

6 0
3 years ago
Find the measure of each minor arc formed by a regular octagon inscribed in a circle. A. 15° B. 30° C.45° D. 60°
marin [14]
Your octagon has a central angle of 360 deg.  Since you're speaking of an octagon, which implies that the octagon is made up of eight triangles, divide 360 deg by 8 to obtain the measure of each minor arc formed.
6 0
3 years ago
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