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Grace [21]
3 years ago
10

What are the two solutions of 2x2 = –x2 – 5x – 1?

Mathematics
1 answer:
dybincka [34]3 years ago
8 0

Answer:

x=1+√334, x=1−√334

Step-by-step explanation:

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If y is 5 when x is 2.5 and y varies directly with x, find y when x is 10
ikadub [295]

Answer:

If x varies directly as y, then x=ky. y=5 and x=2.5 are substituted into x=ky to find k.

2.5=5k

k=2.5/5

k=5.

K =5 is substituted in x=ky to find y where x is 10.

x=5y

10=5y

y=10/2

y=2

8 0
3 years ago
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Boys height: 5 ft 6 inches<br> Boys shadow: 8 ft<br> Tree Ht: ?<br> Tree shadow: 46 ft
igor_vitrenko [27]

Answer:

43.6

Step-by-step explanation:

6 0
3 years ago
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Sunny earns \$12$12dollar sign, 12 per hour delivering cakes. She worked for xxx hours this week. Unfortunately, she was charged
dezoksy [38]

Answer:

12x - 15 dollars

Step-by-step explanation:

Sunny earns $12 per hour for delivering cakes.

She worked for x hours this week.

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She was supposed to earn $12 × x = $12x this week

But she was charged $15 for late delivery on Tuesday

So her net earning this week is; $12x - $15

7 0
3 years ago
Find the oth term of the geometric sequence 9, -18, 36, ...
Sphinxa [80]

Answer:

2304

Step-by-step explanation:

<u>Given :- </u>

  • A geometric sequence is given to us which is 9 , -18 , 36.

And we need to find out the 9th term of the sequence. Here firstly we should find the Common Ratio and then we can substitute the respective values in the formula to find the nth term of a geometric sequence .

<u>Common Ratio :- </u>

:\implies CR = -18÷ 9 = -2

<u>The </u><u>9</u><u> th term :- </u>

:\implies T_n = arⁿ - ¹

:\implies T_9 = 9× (-2) ⁹ - ¹

:\implies T_9 = 9 × (-2)⁸

:\implies T_9 = 9 × 256

:\implies T_9 = 2304

<u>Hence the 10th term is </u><u>2</u><u>3</u><u>0</u><u>4</u><u>.</u>

3 0
3 years ago
Is 34515 divisible my 9
ratelena [41]

Answer:

Yes, the answer would be 3835

Step-by-step explanation:

34515 divided by 9 is simply 3835

3 0
3 years ago
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