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rusak2 [61]
3 years ago
8

Given a+b=7 and a–b=3, find: 2a·2b

Mathematics
1 answer:
nekit [7.7K]3 years ago
5 0
I believe the answer is 40
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Select the correct answer.
makvit [3.9K]

Answer:

<h3>64°</h3>

Step-by-step explanation:

y = 52° ( Opposite Angles )

y + 2x = 180° ( Interior Angles )

y + 2x =  {180}^{o}  \\  {52}^{o}  + 2x =  {180}^{o}  \\ 2x =  {180}^{o}  -  {52}^{o}  \\ 2x =  {128}^{o}  \\ x =  \frac{ {128}^{o} }{2} \\ x =  {64}^{o}  \\

3 0
3 years ago
How to know if a function is increasing or decreasing
Shkiper50 [21]

Answer: when looking at the graph, anything that is going down is decreasing and anything that is going up is increasing. Maybe that can help you.

Step-by-step explanation:

3 0
3 years ago
Kelli is walking to raise money for a local shelter. A neighbor gives her $20. Her uncle donates $2 per kilometer. Write an equa
stiv31 [10]
Y=20+2x I think this is right
4 0
2 years ago
How many pieces would it take to make 2 1/3
DENIUS [597]
It would take 3 pieces to make 2 1/3 because 2 and 1/3 is more than just 2 alone which would take another piece to get it to 2 1/3
5 0
3 years ago
a table is 6 feet long and 3 feet wide. you extend the table by inserting two identical table/leaves. the longest side length of
Molodets [167]

Yep... so they says that the area of the extended leaf is 18+6x... You know that the area is length into breath... here the breath doesn't change.. so it'll be 3ft... can get the length by dividing area by 3... that is 6+2x... Now the new length wil be 2times that plus the previous 6ft length

6 0
3 years ago
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