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Kisachek [45]
4 years ago
7

What is the length of the support AB ?

Mathematics
2 answers:
rewona [7]4 years ago
8 0
I think it is 9sin but I'm not sure.
butalik [34]4 years ago
7 0
Divide by 1/2 then multiply both 7 and 45
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Suppose a scientist puts a colony of bacteria weighing 1 gram in a large container. Assume that these bacteria reproduce in such
DedPeter [7]

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5 0
3 years ago
Please help me please will give brainliest <br><br><br>do only 23 ,25,<br><br>by factoring ​
yaroslaw [1]

9514 1404 393

Answer:

  23)  x = ±3i, ±√2

  26)  x = 4/3, (-2/3)(1 ± i√3)

Step-by-step explanation:

23) Put in standard form to make factoring easier.

  x^4 +7x^2 -18 = 0

  (x^2 +9)(x^2 -2) = 0 . . . . factors in integers

Using the factoring of the difference of squares, you can continue to get linear factors in complex and irrational numbers:

  (x -3i)(x +3i)(x -√2)(x +√2) = 0

  x = ±3i, ±√2

___

26) This will be the difference of cubes after you remove the common factor.

  81x^3 -192 = 0

  3(27x^3 -64) = 0

  (3x -4)(9x^2 +12x +16) = 0 . . . . . factor the difference of cubes

The complex roots of the quadratic can be found using the quadratic formula.

  x = (-12 ±√(12^2 -4(9)(16)))/(2(9)) = (-12 ±√-432)/18 = -2/3 ± √(-4/3)

Then the three solutions to the equation are ...

  x = 4/3, (-2/3)(1 ± i√3)

5 0
3 years ago
Please Help Me!! Will Give Brainliest!!!
Anna71 [15]
X = 2 y = 1
y = 5 x= 4
x = -2 y = -7
y= 0 x= -3
3 0
3 years ago
Plz help ——————————————————————
Brilliant_brown [7]

Answer:

6.5

Step-by-step explanation

I think

7 0
3 years ago
1. The earth makes a full rotation in 24 hours. Jupiter takes approximately 58 days, 15 h, and 30 min to complete a full rotatio
dalvyx [7]
1 day = 24 hours
58 days = 24 x 58
= 1392 hours
30 min = 0.5 hour
1392+15+0.5= 1407.5 hours
6 0
3 years ago
Read 2 more answers
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