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masha68 [24]
3 years ago
11

Does -x plus -x result in -x?

Mathematics
1 answer:
11Alexandr11 [23.1K]3 years ago
5 0
It results in -2x because 1+1=2 and its the same with negative numbers
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Which shows one way to determine the factors of x^3 – 12x^2 – 2x + 24 by grouping?
krek1111 [17]
x^3-12x^2-2x+24=x^2\cdot x-x^2\cdot12-2\cdot x-2\cdot(-12)\\\\=\underline{x^2(x-12)-2(x-12)}=(x-12)(x^2-2)\\\\Answer:\boxed{d}
4 0
3 years ago
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AB is tangent to O. If AO = 32 and BC = 98, what is AB? my guess is 130? please help!
Juli2301 [7.4K]
    
CO = AO  = 32    (Are rays.)
BO = BC + CO = 98 + 32 = 130
AB ⊥ BO
⇒  ΔAOB   is a rectangular triangle.
We use Pitagora's theorem.


\displaystyle\\
AB =  \sqrt{BO^2 - AO^2}  = \sqrt{130^2 -32^2}=\\\\
= \sqrt{16900 -1024}= \sqrt{15876}= \boxed{126 }



7 0
4 years ago
Read 2 more answers
Calculate the angle of depression from the
Vinil7 [7]

The angle of depression from the top of the flag pole to point A is 36.2 degrees.

<h3>What is the angle of depression?</h3>

From trigonometric ratio: cos(θ) = Adjacent / Hypotenuse

Given that;

  • Adjacent = 25ft
  • Hypotenuse = 31ft
  • Angle of depression θ = ?

cos(θ) = Adjacent / Hypotenuse

Cos(θ) = 25ft/31ft

Cos(θ) = 0.80645

θ = cos⁻¹( 0.80645 )

θ = 36.2°

Therefore, the angle of depression from the top of the flag pole to point A is 36.2 degrees.

Learn more about angle of depression here: brainly.com/question/11348232

#SPJ1

6 0
2 years ago
Can someone please answer this I don’t understand!
Dovator [93]

The coordinates of X are (5, 11).

Solution:

Given points of the line segment are P(2, 2) and T(7, 17)  

Let X be the point that partitions the directed line segment PT in the ratio 3 : 2

Using section formula, we can find the coordinate of the point that partitions the line segment.

Section formula:

$X(x, y)=\left(\frac{m x_{2}+n x_{1}}{m+n}, \frac{m y_{2}+n y_{1}}{m+n}\right)

Here, x_{1}=2, y_{1}=2, x_{2}=7, y_{2}=17 and m = 3, n =2

Substitute these in the section formula,

$X(x, y)=\left(\frac{3 \times 7+2 \times 2}{3+2}, \frac{3 \times 17+2 \times 2}{3+2}\right)

            $=\left(\frac{21+4}{5}, \frac{51+4}{5}\right)

           $=\left(\frac{25}{5}, \frac{55}{5}\right)

           =(5, 11)

X(x, y) = (5, 11)

The coordinates of X are (5, 11).

6 0
3 years ago
Answer key for this
topjm [15]

Answer:

3 square root of 64 = 24 (clue #2)

9^2=81 (clue #4)

negative square root of 196 = -14 (clue #1)

(-11)^2= -121 (clue #3)

I hope this help! If i can get brainly I would appreciate it

3 0
3 years ago
Read 2 more answers
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