Answer:
________
Step-by-step explanation:
Given
Line up the numbers
Multiply the top number by the bottom number one digit at a time starting with the ones digit left(from right to left right)
Multiply the top number by the bolded digit of the bottom number
Multiply the bold numbers: 1×4=4
Multiply the bold numbers: 2×4=8
Multiply the top number by the bolded digit of the bottom number
Multiply the bold numbers: 1×1=1
Multiply the bold numbers: 2×1=2
Add the rows to get the answer. For simplicity, fill in trailing zeros.
adding portion
Add the digits of the right-most column: 4+0=4
Add the digits of the right-most column: 8+1=9
Add the digits of the right-most column: 0+2=2
Therefore,
________
we know that
To find how long are sections placed end to end
Multiply the number of sections by the length of one section
so
therefore
<u>the answer is</u>
Answer:
t = 7s + 4
Step-by-step explanation:
The goal is to get t alone. So we should move 7s to the other side of the equals to sign. When we move 7s to the other side of the equals to sign the sign changes to -7s. There are no like terms to be collected so the answer should be 7s + 4 for t.
The second one because it passes through the origin