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SIZIF [17.4K]
2 years ago
11

Simplify the expression 3(a - 7)

Mathematics
2 answers:
Zolol [24]2 years ago
4 0

Answer:

3a - 21

Step-by-step explanation:

3 ( a - 7 )

= 3 ( a ) + 3 ( - 7 )

= 3a - 21

Roman55 [17]2 years ago
4 0

Answer:

Distribute the 3 to all the terms in the parentheses. So, the simplif expression is 3a-21.

:)

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umka21 [38]
The negative infinity for the x coordinate states that the graph should move to the bottom and the y coordinate is positive infinity so that the graph goes up

the first graph is your answer
6 0
3 years ago
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A jar contains 8 4/9 pounds of jam. If Sam eats 3 2/5 pounds of the jam, how many pounds of jam remains in the jar?
zepelin [54]
\bf 8\frac{4}{9}\implies \cfrac{8\cdot 9+4}{9}\implies \cfrac{76}{9}
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3\frac{2}{5}\implies \cfrac{3\cdot 5+2}{5}\implies \cfrac{17}{5}\\\\
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\cfrac{76}{9}-\cfrac{17}{5}\impliedby \textit{let's use an LCD of 45}\implies \cfrac{5\cdot 76-9\cdot 17}{45}
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5 0
3 years ago
Are these correct? If not please help me write the correct answer.​
Keith_Richards [23]

Answer:

Mostly correct

For Q3, you are doing great, you remembered that negative numbers can happen if the exponent is an odd number.

For Q4, I think you were confused with the fractions,

4(i)

(\frac{2}{3} )^{4} = (\frac{2^{4}}{3^{4}}) = (\frac{16}{81}) =0.198

4(ii) is also wrong but I'll let you try to fix it yourself following what I given you for 4(i). You should get 1/64

Hope this helps!

4 0
3 years ago
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Help me and I'll label the first person the brainest commet first
Ilia_Sergeevich [38]

a. irrational numbers

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4 0
3 years ago
A board 6 ft 11 in long is cut from a board 10 ft 5 in long. Find the length of the remaining
gulaghasi [49]

Answer:

3' 6" left

Step-by-step explanation:

6' 11" = 83"

10' 5" = 125"

125 - 83 = 42"

42" = 3' 6"

4 0
3 years ago
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