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iren [92.7K]
3 years ago
12

Can someone help with this math question please

Mathematics
1 answer:
kherson [118]3 years ago
4 0
Regarding question number 47, which is what I can read well ...
 Equation 4 (3x-2) ² = 36 It can be solved in the following way:
 -Apply distributive property
 4 (9x ²-12x +4) = 36
 -We order the terms and equalize to zero
 36x² -48x +16 -36 = 0
 36 x ² -48x -20 = 0
 The roots of this equation are
 (-48 +  √(48 ²-4 ×36 × -20)) / 2 ×36
 and
 (-48 -  √(48 ²-4 × 36 ×-20)) / 2 ×36
 Finally the solution is:
 option C
 x = -1 / 3
 x = 5/3
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What is the probability that a card picked at random from a 52-card deck of playing cards is a club or a jack?
Anestetic [448]
<span>The probability is given as No of favourable outcomes over total number of events. Now, the no of clubs in a deck of cards is 13 and similarly, the number of jacks in a deck of cards is 13. Then, the probability that a card picked at random from a 52-card deck of playing cards is a club or a jack = 13+13/52 = 26/52 = 1/2 = 50%</span>
3 0
3 years ago
Felix’s Feed Mill sells chicken feed for $8.00 per bag. This price is no longer high enough to create a profit. Felix decides to
Soloha48 [4]

Answer:

B

Step-by-step explanation:

essentially the plan that increases the price the most per week reaches the goal of $12 fastest.

plan A is $0.10 per week.

plan B it is not clear, if it means 10% of the original price every week, or every week 10% of the price of the previous week. I assume the first and simplest.

that means 10% of $8 = $0.80 per week.

plan C : the same amount every week until reaching $12. we need to increase in total by $4 (from $8 to $12). to reach these $4 in 8 weeks, we need to increase the price every week by 4/8 = $0.50.

plan D : $0.25 per week.

so, the plan with the highest increase every week and therefore the fastest one reaching $12 is plan B.

8 0
2 years ago
It’s number 37. Thanks!
joja [24]

Answer: 11 and 12

Step-by-step explanation:

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3 years ago
For a two week period, John and Amanda had the following transactions occur to their checking account: a deposit of $1,644.50; c
natali 33 [55]
1644.50 - (190 + 45 + 7.50 + 30 + 5.59 + 7.20 + 21.30) = x (ending balance)
1644.50 - 306.59 = x
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8 0
4 years ago
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An ice cream truck started the day with 45 ice cream sandwiches. During a stop at a busy park they sold s ice cream sandwiches.
Zinaida [17]
45-21=s
(the answer is 24 btw. you can check this by adding 24 and 21 to get 45 c:)
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3 years ago
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