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dimaraw [331]
2 years ago
10

If using the method of completing the square to solve the quadratic equation

Mathematics
1 answer:
nasty-shy [4]2 years ago
5 0
You would need to add 49
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Please help i dont know if my answer is right
sveta [45]

Answer:

The answer is D.117

Step-by-step explanation:

Supplementary angles equal 180°.

180-63=117

3 0
3 years ago
Read 2 more answers
In the xy-plane, the point (4,4) lies on the graph of the function f(x)-2x2-bx + 12. What is the value of b?
nikdorinn [45]
Simply substitute the point into the given equation; as there is one variable, you only need one point and so one is given. When done so, you shall get b=4

5 0
3 years ago
2
svet-max [94.6K]

Answer:

 B.  4200

Step-by-step explanation:

A suitable calculator can add the terms for you. (See attached)

__

The first term is 69, and the common difference is 75-69 = 6. The general term is ...

  an = a1 +d(n -1)

  an = 69 +6(n -1)

Then the 28th term is ...

  a28 = 69 +6(27) = 231

The average term is (a28 +a1)/2 = (231 +69)/2 = 150.

The sum is the number of terms multiplied by the average term:

  sum = 28×150= 4200

5 0
2 years ago
A leaf fell off a tree and floated toward the ground. What is the
pentagon [3]

Answer:

gravity

Step-by-step explanation:

the time it take to fall and force

3 0
2 years ago
Write the equation of the given line in slope-intercept form
Snowcat [4.5K]

Answer:

y = -3x -1

Step-by-step explanation:

Hi there!

We are given a line on a coordinate grid, with 2 marked points, (-1, 2) and (1, -4)

We can use these points to help find the equation of the line, which we can write in slope-intercept form

Slope-intercept form is given as y=mx+b, where m is the slope and b is the y intercept

First, we need to find the slope of the line
The formula for the slope calculated from 2 points is \frac{y_2-y_1}{x_2-x_1}, where (x_1, y_1) and (x_2, y_2) are points

We have everything we need to find the slope, but let's label the values of the points to help avoid confusion.

x_1=-1\\y_1=2\\x_2=1\\y_2=-4

Now substitute these values into the formula to find the slope

m=\frac{y_2-y_1}{x_2-x_1}

m=\frac{-4-2}{1--1}

Simplify

m=\frac{-4-2}{1+1}

m=\frac{-6}{2}

Divide

m= -3

The slope of the line is -3

We can substitute this into the formula.
Here's our line so far:

y = -3x + b

Now we need to find b

As the equation passes through the points (-1, 2) and (1, -4), we can use either one to find the value of b

Taking (-1, 2) for example:

Substitute -1 as x and 2 as y.

2 = -3(-1) + b

multiply

2 = 3 + b

Subtract 3 from both sides

-1 = b

Substitute -1 as b.

y = -3x - 1

Hope this helps!

See more on this topic here: brainly.com/question/27402935

8 0
1 year ago
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