Answer:
Step-by-step explanation:
v(5v-7)=0
We multiply parentheses
5v^2-7v=0
a = 5; b = -7; c = 0;
Δ = b2-4ac
Δ = -72-4·5·0
Δ = 49
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
v1 = −b−√Δ/2a
v2 = -b+√Δ/2a
√Δ = √49 = 7
v1 = -(−7)−7/2*5 = 0/10 = 0
v2 = -(−7)+7/2*5 = 14/10 = 1+2/5
Using the graph and the mode concept, it is found that the mode for the number of books the boys read is given by:
<h3>What is the mode?</h3>
- The <em>mode </em>of a data-set is the <u>number that appears the most times</u> in it.
In this problem, the data-set is composed by the number of books read by boys each day, and is {7, 2, 3, 5, 3}.
- The number 3 appears twice on the data-set, which is more times than the other numbers, hence, it is the mode of the data-set, and option A is correct.
You can learn more about the mode concept at brainly.com/question/24732674
Answer:
The answer is B
Step-by-step explanation:
Divide 48 by 3 which gives you the total amount for one bracelet then you have to multiply the amount by 9 and 13 and then find your answer in the letters.
Answer:
B is the answer to the problem
Use distributive
3f - 15 - 9 = -3
Combine like terms
3f - 24 = -3
Add 24
3f = 21
Divide by 3
f = 7
