Please help me, this is quite hard

Answers

Answer 1

Answer: $d=√((x_2-x_1)^2+(y_2-y_1)^2)\n\nd=√((-7-(-1))^2+(6-(-2))^2)\nd=√((-6)^2+(8)^2)\nd=√(36+64)\nd=√(100)\nd=10$

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50 points decreased by 26%

Answers

well you can set it up 26/100 and X/50 and cross multiply to get 100X=1300 and hen divide by 100 and you get 13 then you subtract 50 by 13 to get 37.

Answer:

Step-by-step explanation:

Yunika downloaded three applications for $2.99 each to her cell phone. The remaining applications that Yunika purchased cost $1.99 each.If she downloaded x total applications, which of the following equations can be used to find how much Yunika spent on cell phone application downloads?

Answers

Answer:

The answer is A. y = 1.99(x - 4) + 11.96

Step-by-step explanation:

I just took the quiz.

You can formulate the equation below to work out your question:

3(2.99) + 1.99(x-3)
8.97 + 1.99x - 5.97
1.99x + 3

CHECK:
If x = 5
3 x 2.99 + 2 x 1.99 = 8.97 + 3.98 = 12.95
1.99 x 5 +3 = 12.95

Hope I helped.

$30 to $50 what is the markup percent

Answers

the markup percent is $15

Write the equation for a line that is perpendicular to the line y=2x-3 and passes through the origin

Answers

Determine the slope

Since the equation is already given in slope-intercept form, we'd assume that the slope is the coefficient of x.

2 is the slope

To write the equation in perpendicular form, change the slope to opposite-reciprocal.

2 opposite-reciprocal is -1/2

So, the equation would be y= -1/2x - 3

Answer:

y= -1/2x - 3

If f(x) = -3 and g(x) = 3x2 + x - 6, find (f+ g)(x).

Answers

Answer:

all work is pictured and shown

Line AB contains points A (3, −2) and B (1, 8). The slope of line AB is−5
negative 1 over 5
1 over 5
5

Answers

Answer:

-5

Step-by-step explanation:

We have two points. We can find the slope m using

m = (y2-y1)/ (x2-x1)

= (8--2)/ (1-3)

(8+2)/(1-3)

10/-2

-5

The slope is -5

Answer:

-5

Step-by-step explanation:

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Organizers for a high school graduation have set up chairs in two sections. They put 126 chairs for the graduates in the front section and 588 chairs for guests in the back section. If all rows have the same number of chairs, what is the greatest number of chairs possible for a row?