I think the correct answer from the choices listed above is option C. It is the metal Na that will react with water to produce a metal hydroxide and hydrogen gas. It reacts violently with water forming sodium hydroxide and the hydrogen gas.
Answer:
First option is the correct answer
Second option is the correct answer
Step-by-step explanation:
Five added to a number, then divides by two equals eight
Three added to one fourth of a number gives seven.
The correct answer is: [C]: " (x + 6)(x - 2) " .
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The slope is (3, 2) when you go up on the graph you count spaces, the first number is your y axis, when you go right on the graph it is the same thing except for the fact that it is the x axis, if you were going down or left the answer would be negative, but in the same order,
Answer:
35
Step-by-step explanation:
j(j + 3) = 1330
Trial and error method:
j and j + 3 are pretty close to each other. Start by taking the square root of 1330.
sqrt(1330) = 36.5. One number is less than 36.5 and the other number if 3 more than that.
Since the product of j and j + 3 is 1330 which ends in 0, it is a multiply of 10 and 5.
Try 35 and 38. 35 * 38 = 1330
Answer: 35
Equation method:
j(j + 3) = 1330
j^2 + 3j - 1330 = 0
(j + 38)(j - 35) = 0
j = -38 or j = 35
Answer: 35
