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aliina [53]
3 years ago
11

Which expression is equivalent to this polynomial? 6x2 + 10x − 56=

Mathematics
2 answers:
Semmy [17]3 years ago
7 0

Step-by-step explanation:

A 4x - 16 - 6x2 - 6x + 40

Solving like terms

-6x2 - 2x + 24

B 3x2 + 5x - 28 + 3x2 - 5x - 28

Solving like terms

6x2 - 64

C 4x - 16 + 6x2 + 6x - 40

Solving like terms

6x2 + 10x - 56

Option C is the correct answer

hammer [34]3 years ago
4 0
2nd one maybe I’m not to sure srry
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PLEASE help what would it be?
sveticcg [70]

Answer: #8292829282

Step-by-step explanation:

3 0
3 years ago
A submarine is only allowed to change its depth by rising toward the surface in 50 METER STAGES. it starts off at -225 meters. H
omeli [17]

Answer:

It will take 5 stages to reach the surface.

Step-by-step explanation:

-225/50=4.5 or what times 4.5 equals -225

Then the problem says to round up so 4.5 becomes 5.

5 0
3 years ago
A box of fruit has four times more peaches than plums.
Ugo [173]

Answer:

The number of plums = 4

The number of peaches =  16

The number of nectarines =  1

Step-by-step explanation:

Let the number of peaches be = x

Let the number of nectarines be = y

Let the number of plums be = z

A box of fruit has four times more peaches than plums. This means that

The number of peaches = 4 X the number of plums.

i.e x = 4z

The box has 3 fewer nectarines than plums. This means that

Number of nectarines = number of plums - 3

i.e y = z - 3

If the box contains 21 pieces of fruit, this means that if we sum up all the peaches, nectarines, and plums in the box, we will get 21.

Peaches + Nectarines + Plums = 21

4z + z-3 + z = 21

6z =21 +3

z = 24/6

z = 4

Therefore, the number of plums = 4

The number of peaches = 4 X 4 = 16

The number of nectarines = 4 -3 = 1

7 0
3 years ago
Can the sum of two mixed numbers be equal to 2?
igomit [66]
No it cant because a mixed number is over one unless that mixed number is negative
3 0
3 years ago
Read 2 more answers
Your neighbor needs to put a fence around her front yard and a seperate fence around her backyard. Her front yard is 65 feet lon
elena-14-01-66 [18.8K]
Front yard
65+65+45+45=220
Back yard
45+45+35+35=160
220+160=380
380 feet
5 0
3 years ago
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