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borishaifa [10]
3 years ago
13

Subtract 5x^2 + 2x - 11 from 3x^2 + 8x - 7. Express the result as a trinomial.

Mathematics
1 answer:
eimsori [14]3 years ago
4 0
(3x^2+8x-7)-(5x^2+2x-11)\\3x^2+8x-7-(5x^2+2x-11)\\3x^2+8x-7-5x^2-2x+11\\-2x^2-6x+4

-2x^2-6x+4
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Answer:

she bought 27 yards of ribbon

Step-by-step explanation:

20 - 14.06 = 5.94

5.94/0.22 = 27

3 0
2 years ago
Express the following ratio in its simplest form.<br> 4:12
Elanso [62]

Answer:

1:3

Step-by-step explanation:

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ps: idk the explanation

8 0
4 years ago
Solve the simultaneous equations 8 x + 5 y = 28 4 x + 5 y = 16
Nostrana [21]

Answer:

x=3, y=0.8

Step-by-step explanation:

8x+5y=28

4x+5y=16

Subtract the second simultaneous equation from the first.

You are left with: 4x=12

12/4=3

x=3

Substitute this back into one of the equations.

8(3)+5y=28

8*3=24

28-24=4

4=5y

4/5=0.8

y=0.8

5 0
3 years ago
Read 2 more answers
the capacity of a closed cylindrical vessel of height 1 m is 15.4 liters. How many square meters of metal sheet would be needed
lord [1]

Answer:

7.7 square metres or 7.669 square metres of metal sheet

Step-by-step explanation:

Volume of cylinder = 2×22/7×r×100cm

15.4 litres = 15,400 cm cube

Radius = 15 400×7/22 × 50

= 98cm

Surface area of cylinder = (2×22/7×49^2) + (2×22/7×49 × 100)

= 15 092 + 61 600

= 76 692 square cm

= 7.669 square metres of metal sheet required

4 0
3 years ago
What is the equation of the line through the origin and (2, 5)?
just olya [345]

Answer:

y=\frac{5}{2}x

Step-by-step explanation:

\frac{rise}{run}

The point is up 5 and went 2 to the right. We can use the equation rise over run to solve for the slope.

4 0
3 years ago
Read 2 more answers
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