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irinina [24]
3 years ago
9

Please help with these questions... I've been trying to figure them out for like twenty minutes and at this point I just don't h

ave the energy anymore... I will pick brainliest! Always do...

Mathematics
1 answer:
vlada-n [284]3 years ago
3 0

Answer:

1. y=2x^2-8X-1

2. y=-6x^2+36x-63

3. y=-3x^2+18x-34

4. y=9x^2+54x+76

5. y=-x^2+8x-22

6. y=6x^2-48x+90

7. y=8x^2+16x+5

8. y=2x^2-8x+1

Have a great day :)

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Sharon is decreasing the size of a diagram of a leaf that is 30 cm. Long by 10 cm. Wide. If the reduced diagram is 4 cm wide how
blsea [12.9K]
It will be 30/(10/4) = 30/2.5 = 12 inches long.
8 0
3 years ago
A 9-foot piece of wood is cut into shelves. If each is 3/7 foot in length, how many shelves are there?
Aloiza [94]

Hello!

To find how much shelves we cut, we need to divide 9 feet by 3/7 feet. When dividing by fractions, it is like multiplying its reciprocal.

This means that the reciprocal of 3/7 is 7/3.

9 / \frac{3}{7} = \frac{9}{1} * \frac{7}{3} = \frac{63}{3} = 21

Therefore, if each shelf is 3/7 feet in length, then there are 21 shelves.

6 0
3 years ago
Please help! I will give brainliest! Needed ASAP!!
attashe74 [19]

step-by-step explanation:

since it tells you the equation 'y = 20x' and y is the number of gallons where as x is minutes

the independent variable = number of gallons

the dependent variable  = minutes

and the number(s) to fill in the table

x ,  y

( 0, 0 )

( 1, 20 )

( 2, 40 )

( 3, 60 )

( 4, 80 )

and the relationship between x and y is linear because you can clearly see the graph having especially a straight line that is not interfering with itself

hope this helps you! :)

7 0
3 years ago
A 2-column table with 4 rows. The first column is labeled x with entries 0, 1, 4, 5. The second column is labeled y with entries
Damm [24]

Answer:

the correct answer would be c

explanation:

the answer is c.4 i know because i got 100% on the test.

7 0
3 years ago
How many hours is 10:00 am to 2:50 pm?
GaryK [48]
It is 4 hours and 50 min
6 0
3 years ago
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