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3 years ago

10

Which one of the following phrases best describes the line that passes through the

1 answer:

larisa86 [58]3 years ago

8 0

Falls from Left to right

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In Need of help please Help :c

Oksanka [162]

Answer:

proportional: A, B, D, G, I
non-proportional: C, E, F, H

Step-by-step explanation:

Any relation with a non-zero initial value or y-intercept is non-proportional. Any relation that has a constant ratio between output and input is proportional.

C has an initial value of 7

E has a y-intercept of -3

F has an initial value of 2.00

H has an initial value of 5

All of these are non-proportional. The remainder are proportional.

3 0

2 years ago

satela [25.4K]

Answer:

9+10=21

Step-by-step explanation:

3 0

2 years ago

A certain connected graph has 68 vertices and 72 edges. Does it have a circuit?

OLEGan [10]

Answer:

Yes.

Step-by-step explanation:

If a graph G doesn't have a circuit, we must have that

$|E(G)|=|V(G)|-1$

where $|E(G)|$ is the number of edges of the graph and $|V(G)|$ the number of vertices. However, in this case it holds that

$|E(G)|=72>68=|V(G)|.$

5 0

3 years ago

Mr. Ivey teaches dance at the middle school. His classes are 90 minutes long, and he spends 94% of class time teaching strength

Anton [14]

Answer:

84.6 minutes

Step-by-step explanation:

94% of 90 minutes =

= 0.9 * 94 minutes

= 84.6 minutes

8 0

3 years ago

LOTS OF POINTS <br> Simplify the expression by factoring, showing the steps in your work

julia-pushkina [17]

Answer:

$\frac{3x+7}{4x+1}$

Step-by-step explanation:

$\frac{12x^2+31x+7}{16x^2+8x+1}$

First you factor $12x^2+31x+7$ :

$=\left(12x^2+3x\right)+\left(28x+7\right)$

Then you factor out $3x$ from $12x^2+3x$ :

$12x^2+3x$

$=12xx+3x$

$=3\cdot \:4xx+3x$

$=3x\left(4x+1\right)$

Then you factor out 7 from $28x+7$ :

$28x+7$

$=7\cdot \:4x+7$

$=7\left(4x+1\right)$

$=3x\left(4x+1\right)+7\left(4x+1\right)$

Factor out common term $4x+1$ :

$=\left(4x+1\right)\left(3x+7\right)$

$\frac{\left(4x+1\right)\left(3x+7\right)}{16x^2+8x+1}$

Factor $16x^2+8x+1$ :

$=4^2x^2+8x+1$

$=4^2x^2+8x+1^2$

$=\left(4x\right)^2+8x+1^2$

$=\left(4x\right)^2+2\cdot \:4x\cdot \:1+1^2$

Use the perfect square formula:

$=\left(4x+1\right)^2$

$\frac{\left(4x+1\right)\left(3x+7\right)}{\left(4x+1\right)^2}$

Cancel out common factor $4x+1$ :

$=\frac{3x+7}{4x+1}$

8 0

3 years ago