Answer:
Bradford T. answered • 11/08/20. Tutor. 5 (6). Retired Engineer / Upper level math instructor ... You need to first subtract 4 from both sides of the equation and see if you ... (x +3/2)(x+1/2) = x2 + x/2 + 3x/2 + 3/4 = x2 + 2x + 3/4 = 0 --> 4x2 + 8x + 3 ... You can plug them back into your original question to check.
Step-by-step explanat
i hope this help
For the area of the deck to be doubled, he should increase each dimension by 3.
<h3>How to find the dimension increase to double the area?</h3>
The deck is 4 feet by 21 feet.
She wants to increase each dimension by equal lengths so that its area is doubled.
Therefore,
initial area = 4 × 21 = 84 ft²
Hence,
The increase by equal length
width = x + 4
length = x + 21
area = 2(84) = 168 ft²
Therefore,
(x + 4)(x + 21) = 168
x² + 21x + 4x + 84 = 168
x² + 25x + 84 = 168
x² + 25x + 84 - 168 = 0
x² + 25x - 84 = 0
(x + 28) • (x - 3) = 0
x = -28 or 3
It can only be positive.
Therefore, she should increase each dimension by 3.
learn more on area here: brainly.com/question/23640960
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Answer:
Solving the radical 
we get 
Step-by-step explanation:
We need to express the radical using the imaginary unit i
Prime factors of 81 are: 3x3x3x3
and 
Solving:
So, Solving the radical we get
Answer:
To solve this you must first know how Log works.
When we say log1000 of base 10
Or
log1000=3
What we actually say is for the power 3(value on RHS) of 10(the base of log) we get 1000(the value on which log is performed).
So log2x=−5 (i am assuming base 10 since it is simple algebra) means that
2x=10−5
x=10−5/2
Do this simple calculation and you have it. If anything is unclear/incorrect feel free to comment.
The question is not written properly, so I will give the answer(s) I think would be suitable.
If you were trying to solve this
log2x=−5
⟹x=2−5
⟹x=132
But if you were trying to solve this
log2x=−5
⟹log102x=−5
⟹2x=10−5
⟹x=12×105=1200000
Step-by-step explanation:
Hope it is helpful...
Answer:
1 11/39
Step-by-step explanation:
3 1/3 = 10/3
2 3/5 = 13/5
10/3 / 13/5
50/39 = 1 11/39
BRAINLIEST WOULD MEAN A TON ;)
