Question:
Solve the equation 2x2−5x+3=0 by the method of completing square.
Answer:
We have,
2x2−5x+3=0
⇒x2−25x+23=0 (Dividing throughough by 2)
⇒x2−25x=−23 (Shifting the constant term on RHS)
⇒x2−2(45)x+(45)2=(45)2−23 (Adding (21Coeff.ofx)2 onboth sides)
⇒(x−45)2=1625−23⇒(x−45)2=16
Answer: Half of a ton equals to 1,120 pounds.
Step-by-step explanation:
Hi, to answer this question we have to analyze the information given:
Since 80 stones make up half of a long ton, and each stone weight is 14 pounds, to obtain the number of pounds in half of a long ton we simply have to multiply the number of stones (80) by the weight of each stone (14)
Mathematically speaking:
<em>14 x 80 = 1,120 pounds
</em>
Half of a ton equals to 1,120 pounds.
Answer:
B. Subtraction property of equality
Step-by-step explanation:
If you subtract angle 3 from both sides, then angle two and angle four must be equal. The property you would be using is the subtraction property of equality.
Answer:
exactly 10: 8.33 %
at least 10: 16.66 %
Step-by-step explanation:
first we have to see the amount of favorable results
4+6 = 10
6+4 =10
5+5=10
then we have to see the amount of possible results
Each dice has 6 faces and there are 2 dice, so if we make 6 ^ 2 we will get the number of possible combinations
6^2 =
6*6 = 36
Now we only do the number of favorable results on the possible results and multiply it by 100 and obtain the probability
100*3/36 = 8.33 %
we do the same for those greater than or equal to 10
4+6 = 10
6+4 = 10
5+5 = 10
6+5 = 11
5+6 = 11
6+6 = 12
100*6/36 = 16.66 %
