Answer:3. 4:8
4. 1:4
Step-by-step explanation:
5. 48
6. 3
Answer:
Step-by-step explanation:
<u>Given function</u>
<u>To find</u>
<u>Solution</u>
Substitute x with 3 in the equation to find f(3)
- f(3) = -4(3+3) = -4*6 = -24
ANSWER
See attachment
EXPLANATION
The given inequality is
This implies that,
Multiply both sides of the second inequality by -1 and reverse the inequality sign.
The graphical solution to this inequality is shown in the attachment.
The solving for the first one should be like this
And the next part
After these manipulations just multiply them
And finally you need to square and simplify for the completed answer
Answer:
8/21
Step-by-step explanation:
The total job is 1
Mike has done 1/3 and Dena has done 2/7 of the job We still need to do x of the job to complete it
1/3 + 2/7+ x = 1
We need to get a common denominator 3*7 = 21
Multiply each side by 21
21(1/3 + 2/7+ x) = 1*21
21(1/3) + 21*(2/7)+ 21x = 21
7+ 3*2 +21x =21
7+6+21x = 21
13+21x = 21
Subtract 13 from each side
13-13+21x=21-13
21x = 8
Divide each side by 21
21x/21 = 8/21
x = 8/21
We need to complete 8/21 of the job