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4 years ago

NEED HELP DUE SOON!!!

Mathematics

1 answer:

Semmy [17]4 years ago

6 0

Answer:

1.) 52 2.) 12 3.) 2 4.) -8

Step-by-step explanation:

You have to put each number in the x column in the x in the equation. (Substitution)

1.)

A.) y= -10 * - 5 + 2

B.) 50 + 2

C.) y= -52

2.)

A.) y= -10 * -1 + 2

B.) y= 10+2

y = 12

3.)

A.) y = -10*0+2

B.) y= 0+2

C.)y=0

4.)

A.) y=-10*1+2

B.) y = -10+2

C.) y=-8

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Y ≥ 12x – 1<br> y < 43x – 2

kondaur [170]

Answer:

Step-by-step explanation:

The solution to this problem is a graph.

Graph y ≥ 12x - 1: this is a straight solid line with slope 12 and y-intercept -1. Due to the presence of the ≥ operator, we must shade (darken) the entire area above this line.

Next, graph y < 43x – 2 using a dashed line (due to the < operator): The slope is 43 and the y-intercept is -2.

Determine where the two lines intersect, either from the graph or algebraically. If algebraically:

equate the two givens:

y = 12x - 1 = y = 43x – 2, which simplifies first to:

12x - 1 = 43x - 2, and second to

1 = 43x - 12x = 31x, which results in x = 1/31.

Substituting 1/31 for x in the first equation, we get:

y = 12(1/31) - 1, or y = 12/31 - 1, or y = 12/31 - 31/31, or y = 19/31

The two graphs intersect at (1/31, 19/31)

Shade (darken) the area beneath (under) the dashed line y < 43x – 2.

The solution is the area that you have darkened twice.

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3 years ago

Choose the function whose graph is given by

Taya2010 [7]

Answer:

The correct option is D.

Step-by-step explanation:

The given graph is the graph of a cosine function, which shifts 1 unit left.

The cosine function is defined as

$y=a\cos(bx+c)+d$

Where, a is amplitude, b is frequency, c is phase shift and d is vertical shift.

If c>0, then the graph shifts c units left and if c<0, then the graph shifts c units right.

Since the graph show only phase shift and the graph shifts only one unit left, therefore required function is

$y=\cos(x+1)$

Option D is correct.

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Answer:

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Step-by-step explanation:

12.6 * 3.25 = 40.95

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Answer:

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Step-by-step explanation:

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The answer MIGHT be D.

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