What adds up to 11 and multiplies to -80

Answers

Answer 1

Answer: let your number be x

your equation will be (x+11)x = -80
expand the equation x^2 +11x +80 = 0
solve the equation and find x

Answer 2

Answer: its +16 and -5.
+16+-5= 11
+16*-5=-80

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If sin theta is -4/5. 270 degrees is less than theta and theta is less than 360 degrees. What is tan theta?

Answers

Answer:

tan theta = -4/3.

Step-by-step explanation:

The inequality means that theta is in the 4th quadrant ( between 270 and 360 degrees.

The angle whose sine is 4/5 is 53.13 degrees.

So the angle whose sine is -4/5 is 306.87 degrees.

The tangent is negative and the triangle formed by the angle in the 4th quadrant has sides 3, - 4 and 5 ( by the Pythagoras theorem).

So tan theta = opposite / adjacent = -4/3 (answer).

What is the area of a triangle with side lengths 25, 25, and 48

Answers

The area of this triangle can be solved using the Heron's Formula which is expressed as:

Area = √p(p −a )(p −b )(p −c )

where p is half of perimeter of the triangle and a,b,c are the side lengths.
p = (25 + 25 + 48) / 2
p = 49

Area = √49(49−25)(49−25)(49−48)
Area = 168

What is the slope and y-intercept for y=7/3x+5

Answers

$y= (7)/(3)x+5 \n \n the \ slope \ \ form \ is : \n \n y= mx +b \n \nm=(7)/(3)\n \ny -intercept =b \n \n y= 5$

the most easy thing for making intercept is by putting x=0
therefore , y = 7/3x + 5
y = 7/3(x)+5
y=5
therefore intercept is (0,5)

A room has an area of 121 ft2 but carpeting is only sold in m2. How much carpeting is needed to carpet the room?

Answers

Since there are 3ft in 1m, multiply the 121 ft2 by 3ft. ( 121 ft2 ×3ft ) -> ( 363 ft3 ) = 363 m2

Which equation represents a line that is perpendicular to the line whose equation is y = 4x + 12?y = 4x + 4
y = -4x + 7
y = (-1/4x) + 1
y = (1/4x) + 9

Answers

Hello,
slope perpendicular of 4 is -1/4

Answer C

Which is a factor of x2 - 9x + 14?
O X-9
O X-2
O x + 5
O x + 7

Answers

Answer:

X-2

Step-by-step explanation:

ON MY DOG WAGGY TAIL DIS DA RIGHT ANSWER

(X-7) and (x-2)
Factor x2 -9x+ 15 using the AC method

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