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-Dominant- [34]
3 years ago
15

What is the percent of decrease from 100 to 23?

Mathematics
1 answer:
nirvana33 [79]3 years ago
5 0

Answer:

77% decrease

Step-by-step explanation:

100 - 23 is 77. it makes it easier since the start number is 100!

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a_sh-v [17]

Answer:

8 in

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4 0
3 years ago
A student earned a grade of 82% on a math test that had 20 problems. How many problems on this test did the student answer corre
rosijanka [135]
<h3>Answer:  16</h3>

Work Shown:

82% of 20 = 0.82*20 = 16.4 which rounds to 16

6 0
2 years ago
Solve this problem out
Phoenix [80]

Solving the equation 2x^2-12x+6=0 using completing square method we get (x+3)^2=6

So, Option A is correct.

Step-by-step explanation:

We need to solve the equation 2x^2-12x+6=0 using completing square method.

Solving using completing square method

2x^2-12x+6=0

For completing the square we need to make formula a^2-2ab+b^2=(a-b)^2

Divide the equations by 2

x^2-6x+3=0

x^2-6x+3=0

Adding and subtracting (3)^2 on both sides.

(x)^2-2(x)(3)+(3)^2-9+3=0

(x+3)^2-6=0

(x+3)^2=6

Solving the equation 2x^2-12x+6=0 using completing square method we get (x+3)^2=6

So, Option A is correct.

Keywords: Solving Quadratic Equation

Learn more about Solving Quadratic Equation at:

  • brainly.com/question/2568692
  • brainly.com/question/1332667
  • brainly.com/question/1357167

#learnwithBrainly

7 0
4 years ago
I WILL GIVE BRAINLIEST TO WHOEVER ANSWERS!!!
arsen [322]

Answer:

The answers are H and A, let me know in a comment if you want me to explain it

3 0
3 years ago
A line is parallel to y = 2x - 7.<br> What is it's slope?
Vera_Pavlovna [14]

Answer:

Slope = 4.000/2.000 = 2.000

Step-by-step explanation:

Step  1  :

Equation of a Straight Line

1.1     Solve   y-2x+7  = 0

Tiger recognizes that we have here an equation of a straight line. Such an equation is usually written y=mx+b ("y=mx+c" in the UK).

"y=mx+b" is the formula of a straight line drawn on Cartesian coordinate system in which "y" is the vertical axis and "x" the horizontal axis.

In this formula :

y tells us how far up the line goes

x tells us how far along

m is the Slope or Gradient i.e. how steep the line is

b is the Y-intercept i.e. where the line crosses the Y axis

The X and Y intercepts and the Slope are called the line properties. We shall now graph the line  y-2x+7  = 0 and calculate its properties

Graph of a Straight Line :

Calculate the Y-Intercept :

Notice that when x = 0 the value of y is -7/1 so this line "cuts" the y axis at y=-7.00000

 y-intercept = -7/1  = -7.00000

Calculate the X-Intercept :

When y = 0 the value of x is 7/2 Our line therefore "cuts" the x axis at x= 3.50000

 x-intercept = 7/2  =  3.50000

Calculate the Slope :

Slope is defined as the change in y divided by the change in x. We note that for x=0, the value of y is -7.000 and for x=2.000, the value of y is -3.000. So, for a change of 2.000 in x (The change in x is sometimes referred to as "RUN") we get a change of -3.000 - (-7.000) = 4.000 in y. (The change in y is sometimes referred to as "RISE" and the Slope is m = RISE / RUN)

   Slope     =  4.000/2.000 =  2.000

Geometric figure: Straight Line

 Slope = 4.000/2.000 = 2.000

Processing ends successfully

plz mark me as brainliest :)

7 0
4 years ago
Read 2 more answers
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