Answer:
108.
Step-by-step explanation:
Comparing the given equation with the general form:
ax^2 + bx + c = 0 ,
-2x^2 + 6x + 13 = 0 .
We see that a = -2, b = 6 and c = 13.
So the discriminant
= b^2 - 4ac
= (-2)^2 - (4 *-2 * 13)
= 4 - (-104)
= 4 + 104
= 108 (answer).
The answer is (B).
Draw any triangle ABC. Reflect this triangle across the line AB, creating triangle A'B'C' for which A'=A and B'=B. By definition of a reflection, sides B'C and B'C' are congruent. In addition, sides A'C and A'C' are congruent. The quadrilateral CA'C'B' has two pairs of consecutive sides that are congruent and no congruent opposite sides. By definition, this is a kite.
Probability of giving birth to four consecutive boys ;
0.52 0.52 * 0.52 * 0.52
= 0.073 ( rounded off)
Thus, the probability to give birth to 4 consecutive boys is 0.073
i think you multipy both of them and you get the ans
The best approach to calculating the stipulated 20% tip by means of fractions is to note that the tip is one-fifth of the total amount charged on the bill.
<h3>What is the equivalent of the 20% tip as indicated in the task content?</h3>
The percentage represented as; 20% can be expressed as a fraction.
This follows from the fact that the percentage, % symbol translates to divided by 100.
Consequently, we must note that the 20% translates to; 20/100 = 1/5.
Hence, the 20% tip is one-fifth of the total amount.
Read more on percentages;
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