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3 years ago

If a crate contains 25,500 ounces of rice , about how many kilograms does it contain?

1 answer:

6 0

Well, we know there are 16oz in 1lb, and we know there are 2.2lbs in 1Kg, so

$\bf 25500~\underline{oz}\cdot \cfrac{1~\underline{lb}}{16~\underline{oz}}\cdot \cfrac{1kg}{2.2~\underline{lb}}\implies \cfrac{25500\cdot 1\cdot 1~kg}{16\cdot 2.2}\qquad \approx \qquad 724.43\overline{18}~kg$

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Given that the quadratic equation has equal roots (k^2-1)x^2-2kx-3k-1=0

Alik [6]

Answer:

(See explanation for further details)

Step-by-step explanation:

The real expression is:

$(k^{2}-1)\cdot x{{2} - 2\cdot k \cdot x - 3\cdot k + 1 = 0$

The general equation for the second-order polynomial is:

$x = \frac{2\cdot k \pm \sqrt{4\cdot k^{2}-4\cdot (k^{2}-1)\cdot (-3\cdot k + 1)}}{k^{2}-1}$

This condition must be observed for the case of a quadratic equation with equal roots:

$4\cdot k^{2} - 4\cdot (k^{2}-1)\cdot (-3\cdot k + 1) = 0$

$k^{2} + (k^{2}-1)\cdot (3\cdot k + 1) = 0$

$k^{2} + 3\cdot k^{3} - 3\cdot k - k^{2}-1 = 0$

$3\cdot k^{3} - 3\cdot k - 1 = 0$

7 0

3 years ago

Determine if line AB and CD are congruent or not congruent given the coordinates A(0, 13), B(7, 11), C(12, 10), and D(10, 3). Ex

drek231 [11]

Answer:

Step-by-step explanation:

The lines arent equal

5 0

3 years ago

3x - 2y > 12 Please I need as soon as possible

Novosadov [1.4K]

Answer:

y<-6+3x/2

Step-by-step explanation:

6 0

2 years ago

The table below shows the results of flipping two coins. how does the experimental probability of getting HH compare to the theo

marusya05 [52]

The correct answer is option B. i.e. the experimental probability is 3% greater than the theoretical probability

The theoretical Outcomes are: HH HT TH TT
Then, the probability of getting HH = 1/4 = 0.25 = 25%

Now, Experimental Outcomes : HH=28 HT=22 TH=34 TT=16
Total number of outcomes = 28+22+34+16 = 100
Then, the probability of getting HH = 28/100 = 0.28 = 28%

Thus, the experimental probability is 3% greater than the theoretical probability

8 0

3 years ago

Gcf (greatest common factor) of 9ab and 16bc

maw [93]

the greatest common factor is 1

7 0

3 years ago