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faust18 [17]
4 years ago
12

Solve for x: x^19 − 2x^18 + 7x^17 − 12x^6 + 6x^15 = 0

Mathematics
1 answer:
Flauer [41]4 years ago
7 0
It looks like you intend
  x¹⁹ -2x¹⁸ +7x¹⁷ -12x¹⁶ +6x¹⁵ = 0
  x¹⁵(x -1)²(x² +6) = 0

x = 0, 1, ±(√6)i . . . . . . . selection D is appropriate
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SLFJ SDFNEFS LF A SF IE FJS VS IKF DSFNIS DSF
avanturin [10]

Answer:

40

Step-by-step explanation:

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6 0
3 years ago
100m In 9 3/5 seconds
Nostrana [21]

Answer:

Speed = 10.42 m/secs

Step-by-step explanation:

We have been given with:-

Distance = 100m

Time taken = 9\frac{3}{5} secs

1) First, we need to convert the mixed number 9\frac{3}{5} to an improper fraction.

<u>Method to convert a mixed number to an improper fraction</u>

<u>a\frac{b}{c} = \frac{c*a+b}{c}</u>

Applying the above formula, we get

9\frac{3}{5} = \frac{5*9+3}{5}

= \frac{45+3}{5}

= \frac{48}{5}

2) Now we need to convert \frac{48}{5} into a decimal by dividing 48 by 5.

We get time taken as 9.6 secs

3) We need to find the speed using the below formula:-

Speed = \frac{Distance}{Time taken}

Plugging the values of Distance and Time taken into the formula, we get

Speed = \frac{100}{9.6}

= 10.416 m/secs

4) Upon rounding it to the nearest hundredth, we get

Speed = 10.42 m/secs

4 0
3 years ago
A random survey of the quality of city parks is taken. Sixty-five percent of the people surveyed were pleased with the condition
Georgia [21]

Answer:

DWWDDWDWDAWDWDAWD

Step-by-step explanation:

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3 0
3 years ago
The number of charter schools is 4 less than twice the number of alternative schools and there are 48 charter schools how many a
jarptica [38.1K]
Let x = the number of alternative schools.

Therefore, 2x - 4 = 48.
                  2x -4 +4 = 48 + 4
                  2x = 52
                    x = 26

Therefore, there are 26 alternative schools(You could check this answer by substituting x=26 into the equation above.).
7 0
3 years ago
what’s the better value 1/2 kg of bulk sunflower seeds costing $.70 per 100 grams or A 500 mg bag of prepackage seeds costing $3
PilotLPTM [1.2K]

Answer:

A 500 mg bag of prepackage seeds costing $3.95

Step-by-step explanation:

First, you need to know the amoun of grams in 1/2 kg to find the cost of the sunflower seeds:

1 kg→1000 grams

1/2 kg→ x

x=(1000*(1/2))/1

x= 1000/2

x= 500 grams

Second, you have to find the cost of 500 grams of sunflower seeds:

100 grams → $0.70

500 grams→    x

x=(500 *0.70)/100

x= 3.5

According to this, 1/2 kg of of bulk sunflower seeds cost $3.5 which is cheaper than the 500 mg bag of prepackage seeds that cost $3.95 and this means that the better value is 1/2 kg of bulk sunflower seeds as the amount is also higher as 500 mg is equal to 0.5 grams.

4 0
3 years ago
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