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nlexa [21]
3 years ago
9

The graph of y= -4x + 7 is: ​

Mathematics
2 answers:
Vinil7 [7]3 years ago
8 0

Answer: A line that shows the set of all solutions to the equation

Step-by-step explanation:

Given :

y = -4x + 7

The graph is a linear graph with negative slope.

the variable x could be any number , this means there could be as many solutions as possible.

this means that option B is out already.

Also , the equation is  a graph and not a point , so option C and D  are also out.

Option A will definitely fit in.

ser-zykov [4K]3 years ago
3 0

b and d can be eliminated because there are multiple solutions.

answer: A, because it shows all solutions to the equation

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F(x) = 5<br><br> F(x)= x2+4 solve this
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Step-by-step explanation:

replaced f(x) with 5

5= x^2 +4

5 -4 = x^2

1 = x^2

take the square root on both sides

- 1 or 1 = x

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The formula P=a+b+c gives the perimeter P of a triangle with side lengths a,b, and c. How much greater is the is the perimeter o
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By what precent does the price need to increase in order to return to its oringnal value of $250,000?
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Which of the following is the equation for a line parallel to y=2x−5 and having a y-intercept of −3? Select one: a. y=−3x−5 b.y=
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When we write a line equation in the form

y=mx+q

m is the slope of the line, and q is the y-intercept.

Since we want the y-intercept to be -3, our line will look like

y=mx-3

In order to fix the slope, remember that two parallel lines have the same slope. So, the slope of the given line y=2x-5 is 2, and since we want a line parallel to this line, our slope will be 2 as well.

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6 0
4 years ago
For the triangle ABC, determine if the following statement is True or False.
velikii [3]

Answer:

sin A = cos B is TRUE

csc A = sec A is FALSE

tan A = cot B is TRUE

Step-by-step explanation:

<em>Let's review the basics of trigonometry and what each ratio means. We will base our discussion with respect to the triangle shown in the picture attached.</em>

For any right triangle, <em>the side opposite of the right angle is called the </em><em>"hypotenuse"</em>. The other two sides are legs of the triangle. Those are also called "opposite" side and "adjacent". Which one is which depends on the angle (besides the right angle) we are looking at.

<u><em>With respect to the angle θ, the "opposite" side would be "b" and the adjacent side would be "a" and of course, c is the hypotenuse. If we were to look from the other angle, then "opposite" would have been "a" and adjacent would have been "b".</em></u>

<u>Trigonometric Ratios:</u>

6 trigonometric ratios (sin, cos, tan, csc, sec, & cot) are ratios of one side to another. Below are the relationships give:

  • Sin θ is the ratio of opposite to hypotenuse
  • Cos θ is the ratio of adjacent to hypotenuse
  • Tan θ is the ratio of opposite to adjacent
  • Csc θ is the ratio of hypotenuse to opposite
  • Sec θ is the ratio of hypotenuse to adjacent
  • Cot θ is the ratio of adjacent to opposite

<u>Let's solve our problem now:</u>

For our image given in this problem, we will figure out the ratios and see if the 3 equations hold true or not.

<u>Sin A = Cos B</u>

Sin A = \frac{a}{c}

Cos B = \frac{a}{c}

These two are equal. So this statement is TRUE.

<u>Csc A = Sec A</u>

Csc A = \frac{c}{a}

Sec B = \frac{c}{b}

These two are NOT equal. So this statement is FALSE.

<u>Tan A = Cot B</u>

Tan A = \frac{a}{b}

Cot B = \frac{a}{b}

These two are equal. So this statement is TRUE.


6 0
4 years ago
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