2.)Which is a solution to the equation?(x −2)(x + 5) = 18
x = −10

x = −7

x = −4

x = −2

Answers

Answer 1

Answer: $(x-2)(x+5) = 18\n x^(2)-2x+5x-10=18\n x^(2)+3x-28=0\n delta=3^(2)-4*1*(-28)=9+112=121\n x_(1/2)= (-3+11)/(2)/ (-3-11)/(2)=4/-7$

So the answer is -7=x

Answer 2

Answer:

Answer:

x=-7

Step-by-step explanation: it's B on edg

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WXYZ IS A RECTANGLE. What is ZX?

Answers

ZX is one side out of the triangle

ZX is a diagonal line from one point (corner) of the rectangle to the the other point (corner).

Hoped I helped!

Which set of lengths might be used to represent the sides of a right triangle? A. (6, 7, 10)

B. (7, 15, 17)

C. (9, 12, 16)

D. (7, 24, 25)

Answers

The set of side lengths (7, 15, 17) represents a right angled triangle

For the given set of side lengths to represent a right angled triangle, the

Pythagoras relation should be satisfied by the side lengths of the triangle.

We can write the given relation as -

h² = b² + p²

Consider the side length pairs as -

(7, 15, 17)

We can arrange the sides as -

17² = 15² + 7²

289 = 225 + 49

289 = 289

The set of side lengths (7, 15, 17) represents a right angled triangle.

To solve more questions on triangles, visit the link-

brainly.com/question/2773823

#SPJ2

Answer:

Step-by-step explanation:

If the price of an object dropped 65% down to $99.99, what was the original price?

Answers

If the price of an object dropped 65% down it means that 35% is $99.99, well,
then we make a proportion and solve 99.99 multiply by 100 and divide by 35,
then we get the original price $285,7

maybe I have a mistake)

The answer is 153.83. Because if you multiply 99.99 by .65, thats the answer

I need help with that

Answers

Answer:

x intercept = (3,0)

y intercept = (0, -2)

Step-by-step explanation:

x-intercept:

2x = 3y +6

x intercept = 6/2 = 3

y-intercept

-3y = -2x + 6

y = 2/3x - 6/3

y = 2/3 - 2

I need help with this

Answers

Answer: A.3x² - 2x - 6

Step-by-step explanation:

Pwease help fast this is mah last question!The area of the trapezium ABCD as shown in the figure (in square units) is
A) 222
B) 111
C) 224
D) 116

Answers

Answer:

A = 222 units^2

Step-by-step explanation:

To find the area of this trapezoid, first draw an imaginary horizontal line parallel to AD and connecting C with AB (Call this point E). Below this line we have the triangle CEB with hypotenuse 13 units and vertical side (21 - 16) units, or 5 units. Then the width of the entire figure shown can be obtainied using the Pythagorean Theorem:

(5 units)^2 + CE^2 = (13 units)^2, or 25 + CE^2 = 169. Solving this for CE, we get |CE| = 12.

The area of this trapezoid is

A = (average vertical length)(width), which here is:

(21 + 16) units

A = --------------------- * (12 units), which simplifies to:

A = (37/2 units)(12 units) = A = 37*6 units = A = 222 units^2

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