What 2 numbers multiply to -360 and add up to 9

Answers

Answer 1

Answer: xy = -360
x + y = 9

x + y = 9
- x - x
y = -x + 9

xy = -360
x(-x + 9) = -360
x(-x) + x(9) = -360
-x^2 + 9x = -360
+ 360 + 360
-x^2 + 9x + 360 = 0
-1(x^2) - 1(-9x) - 1(-360) = 0
-1(x^2 - 9x - 360) = 0
-1 -1
x^2 - 9x - 360 = 0
(x + 15)(x - 24) = 0
x = -15 or x = 24

The two numbers that multipky to -360 and 9 are -15 and 24.

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What's A(-2,-4),B(2,4)

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AB = $\sqrt{( 2 + 2 ) ^(2) + (4 + 4)^(2) } = √(16 + 256) = √(272) = 16.49$

Julia has 2 identical rooms in her house. If each room measures 8 feet on one side and 12 feet on another, what is the total area of the rooms?

Answers

L = 12 ft
W = 8 ft
One room has area:
A1 = L · W = 12 · 8 = 96 ft²
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According to The Fundamental Theorem of Algebra, how many zeros does the function. f(x) = 3x4 + x + 2 have?

Answers

According to The Fundamental Theorem of Algebra, we work with complex roots which means that the function. f(x) = 3x4 + x + 2 has !four! zeros that will coincide with degree of polynomial. You will have as many complex coefficients as many you have zeros. Hope it is clear. Regards.

Write multiples of 5 and 8. use least common multiple to simplify 120/160

Answers

well you divide each number by 5 to start
120/5=24
160/5=32
now you take each answer (24 & 32) and divide them by 8
24/8=3
32/8=4
Your answer is going to be 3/4

A rectangle and a triangle with the same base and height have the same area. a. True
b. False

Answers

the answer is false because if you attach to triangles together in a way so that the figure would have 4 straight lines, you will get a rectangle. that means half of a rectangle is a triangle, so the area of both cannot be the same even if they have the same base and height.

for example the base and height of both is 3cm and 5cm.

area of the rectangle then would be,
area= base× height
=3cm×5cm=15cmsquared

then the area of the triangle would be,
area= base×height divided by 2
=3cm×5cm÷2= 7.5cm

so your answer is false
hope this helps....

Answer:

The Answer is False

I wwant to no what is 23f

Answers

It's a number that is 23 times the size of ' f ' .

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