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m_a_m_a [10]
3 years ago
8

5. Which is the best first step to solve 5x+12x = 40 by completing the square?

Mathematics
2 answers:
irakobra [83]3 years ago
8 0

Answer:

jkhjkhkhjk

Step-by-step explanation:

vichka [17]3 years ago
7 0

Answer:

B

Step-by-step explanation:

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The value of Peter's house has risen 20% a year for the last 3 years. If the value of Peter's home 3 years ago was $110,000.00,
IRISSAK [1]
Increase $110,000 by 20% 3 times.

110,000 x 0.2 = 22000
(0.2 is 20% as a decimal, we needed to convert it to multiply it)

So we must add 22000 to 110,000, then take 20% of the new cost, and repeat.

Add them
110,000 + 22000 = 132000

Take 20% of new value
132000 x 0.2 = 26400

Add that
132000 + 26400 = 158400

Take another 20% of that
31680

Add them
158400 + 31680 = 190080

So the value is now $190,080

A much more efficient way to do this would be multiplying 1.2 instead of 0.2, and skipping the adding part, as you already took 100% of it and are adding 20% more.

Hope this helps!
4 0
3 years ago
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What is the minimum value of the function?
12345 [234]

Answer:

-1 ..?

Step-by-step explanation: because the lowest number a curve touches is -1

3 0
3 years ago
I NEED HELP AGAIN PLEASE 7 7/10+ 7 2/10
Lera25 [3.4K]
The answer is 14.9 or you can say <span>14 </span><span>9/10.</span>
7 0
3 years ago
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What is the best measure of center for the following data set?
Rom4ik [11]

Answer:

b) median: there are 7 numbers listed; 20 is the middle number among them

range: subtract lowest from highest number 25-2=23

mean: add all the numbers together =129

mode: place numbers in order (smallest to greatest), then see which number appears the most 2, 18, 18, 20, 22, 24, 25=18

Step-by-step explanation:

5 0
3 years ago
Which figure has one line of symmetry but no rotational symmetry?
Slav-nsk [51]
C because u can split it only once vertically but it’s not a rotationally symmetrical shape
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