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Marrrta [24]
2 years ago
8

Which expression is equivalent to 2(4 + x) + 3 ?

Mathematics
1 answer:
Elden [556K]2 years ago
6 0
The correct answer is A. 2*4+x+3
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Solve the equation and check the solution.
myrzilka [38]

A - 2 1/2 = 1 1/2

Solve for A by adding 2 1/2 to both sides:

A = 1 1/2 + 2 1/2

A = 4

The answer is c. A = 4

Check: 4 - 2 1/2 = 1 1/2

8 0
3 years ago
How many lines of symmetry?
Alex73 [517]

Answer:

i think 4

sorryif its wrong

3 0
2 years ago
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A bean plant grows at a constant rate for a month. After 10 days, the plant is 25 centimeters tall. After 20 days, the plant is
wariber [46]
Y = 2x + 5

If you take the height at 10 days, 25 centimeters, after 10 more days the height is 45 centimeters, meaning for those 10 extra days the been plant grown 20 centimeters. Since we're told the plant is growing at a constant rate, this shows the bean plant is growing 2 centimeters per day. We can represent this with y = 2x. (After 10 days, the bean plant will be 20 centimeters, after 20 days, the bean plant will be 40 centimeters, etc.)

However, this is not completely true yet. As you can see, after the first 10 days the plant is not 20 centimeter, it's 25 centimeters. We already know the rate in which the plant is changing, but now we need to find the height that the plant was originally, before it started growing.

After the first 10 days, the plant is 25 centimeters tall. Since we know that the plant is growing 2 centimeters per day, we can subtract 20 from 25 to find the original height of the bean plant.

25 - 20 = 5
The bean plant was originally 5 centimeters.

This makes our final equation y = 2x + 5.
2x is the slope, and 5 is the y intercept.

Hope this helps1!
5 0
3 years ago
The angle are supplementary.find the missing angle measure
olga55 [171]
U had to take a pic of the work so we could see it
6 0
3 years ago
Read 2 more answers
Galaxea Fascicularis is a very large independent coral formation off Okinawa, Japan. It measures 7.24 meters long and 4.002 mete
Dmitry_Shevchenko [17]
7.24-4.002=3.238
It is 3.238 meters longer than higher
5 0
3 years ago
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