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Andrei [34K]
3 years ago
9

Factor the following expressions completely. Show and check all work on your own paper. x^2+169

Mathematics
1 answer:
lisabon 2012 [21]3 years ago
3 0
Is not factorable over real numbers, but if you want to use imaginary numbers then it would be (x+13i) (x-13i)

Answer with rational numbers: Not Factorable


Answer with imaginary numbers: (x-13i)(x+13i)
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Two trains, train a and train , weigh a total of 466 tons. Train A is heavier than train b. The difference of there weights is 3
AlexFokin [52]

Answer: A = 396 tons

B = 70 tons

Step-by-step explanation:

From the question,

Weight of A + Weight of B = 466

Weight of A - Weight of B = 326

A + B = 466 ......... i

A - B = 326 ..........ii

Subtract equation ii from I

2B = 140

B = 140/2

B = 70 tons

A = 466 - 70

A = 396 tons

5 0
3 years ago
What is the solution to x+2y=3 and 2x-3y=-8
ioda
<span>x-intercept - (3,0)</span>y-intercept - <span>(0,−<span>3/2</span><span>)

</span></span>x-intercept - (-4,0)
y-intercept - (0,8/3)
6 0
3 years ago
What is the area of a rectangle with vertices at (−3, −1) , (1, 3) , (3, 1) , and (−1, −3) ?
77julia77 [94]
The coordinates of the rectangle are (-3,-1), (1,3), (3,1) and (-1,-3).

Draw the given rectangle as shown in the figure below.

Calculate the length of the rectangle as
a = √(4² + 4²) = 4√2
Calculate the width of the rectangle as
b = √(2² + (-2)²) = 2√2
Calculate the area of the rectangle as
A = a*b = (4√2) * (2√2) = 16

Answer: 16

4 0
3 years ago
Write 0.00109 ounces in scientific notation
jasenka [17]
Here is the answer.
You gotta move to the right 3 times

4 0
3 years ago
Please help meeeee! Which interval would 10 be included in?<br> O 0-10<br> O 10-20
Alexeev081 [22]

Answer:

the answer is 10 and another one is 30

7 0
3 years ago
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