Help on geometry similar triangles #4

Answers

Answer 1

Answer: Because BE // DC you have that AE / AD = BE / DC ;
AD = AE + ED;
AD = 9;
3 / 9 = BE / 15;
BE = ( 3 * 15 ) / 9;
BE = 5.

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Two more than the product of -5 and a number x is 5...what is the number

Equation for y-intercept

Answers

y=mx+b

Where m is the slope
and b is the y-intercept

you can use linear equation to find your y-intercept: y = mx + b

a school has a policy that 2 adults must accompany every group of 15 students on school trips. how many adults are needed to take 180 students on a trip?

Answers

24 adults are needed

Solve for d.5d+2(2-d)=3(1+d)+1
a)no solution
b)d=4
c)infinitely many solutions
d)d=-3

Answers

5d + 2(2 - d) = 3(1 + d) + 1
5d + 2(2) - 2(d) = 3(1) + 3(d) + 1
5d + 4 - 2d = 3 + 3d + 1
5d - 2d + 4 = 3d + 3 + 1
3d + 4 = 3d + 4
-3d    -3d
   4 = 4
   d = 0

$5d+2(2-d)=3(1+d)+1 \n 5d+4-2d=3+3d+1 \n 3d+4=3d+4 \n 0=0 \n \boxed{C.\ Infinitely\ many\ solutions}$

The revenue, in dollars, of a company that produces jeans can be modeled by 2x2 + 17x – 175. The cost, in dollars, of producing the jeans can be modeled by 2x2 – 3x – 125. The number of pairs of jeans that have been sold is represented by x. The profit is the difference between the revenue and the cost, 20x – 50. If 75 pairs of jeans are sold, what is the company’s profit?

Answers

Revenue: 2x² + 17x - 175
Cost: 2x² - 3x - 125
Profit: 20x - 50

Profit = Revenue - Cost
Profit = 2x² + 17x - 175 - (2x² - 3x - 125)
Profit = 2x² - 2x² + 17x + 3x - 175 + 125
Profit = 20x - 50

x = 75

profit = 20(75) - 50
profit = 1500 - 50
profit = 1450

Answer:

20x−50; $1,450

Step-by-step explanation:

Find the area, please

I’ll give brainlist

Answers

Answer:

Area = 104 m²

Step-by-step explanation:

the figure is composed of a rectangle and a triangle

area of rectangle = length × breadth = 10 × 8 = 80 m²

area of triangle = $(1)/(2)$ × base × perpendicular height

the base of the triangle is opposite the 8 m side of the rectangle and is 8 m

the perpendicular height of the triangle is 6m , then

area of triangle = $(1)/(2)$ × 8 × 6 = 4 × 6 = 24 m²

sum the areas of the two parts

area = 80 + 24 = 104 m²

Line m has a y-intercept of c and a slope of q/p, where p > 0, q > 0, and p ≠ q.What is the slope of a line that is perpendicular to line m?

Answers

Answer:

-p/q

Step-by-step explanation:

m1 = Slope of line 1 (Line m) = q/p

m2 = Slope of line 2

Since the lines are perpendicular,

m1•m2 = -1

Therefore,

m2 = -1/m1

m2 = -1/(q/p)

m2= -p/q

Please mark brainliest,

Thanks.

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