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mash [69]
3 years ago
15

Need answer quick plz!!

Mathematics
2 answers:
gavmur [86]3 years ago
4 0

Answer:

The mistake is in part 2.

Step-by-step explanation:

2(1)^3 is 2(1) because 1*1*1 still =1. She was multiplying 1 by 3.

torisob [31]3 years ago
3 0

Answer:

Its B

Step-by-step explanation:

1^3 is 1

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X2-2xy+y2=30 solve the equation
Rom4ik [11]

Answer:

2.1

Step-by-step explanation:

3 0
3 years ago
If two sweaters and four shirts cost $150, and four sweaters and three shirts cost $200, find the price of each shirt and each s
STALIN [3.7K]

Answer:

shirt = $20

sweater = $35

Step-by-step explanation:

This question would be solved using simultaneous equation

Let the price of sweater be represented by a

Let the price of shirt be represented by b

The following equations can be derived from the question

2a + 4b = 150   equation 1

4a + 3b = 200   equation 2

Multiply equation 1 by 2

4a + 8b = 300    equation 3

Subtract equation 2 from 3

5b = 100

divide both sides of the equation by 5

b = 20

substitute for b in equation 1

2a + 4(20) = 150

2a + 80 = 150

collect like terms

2a = 150 - 80

2a = 70

divide both sides by 2

a = 35

Price of sweater = $35

Price of shirt = $20

4 0
2 years ago
Read 2 more answers
A container of beads contains: 8 red beads, 6 yellow beads, and 6 green beads. A bead will be drawn from the basket and replaced
77julia77 [94]

Answer:

Because of probability, a green or red bead would be drawn 14/20 times because there are 20 total beads and adding together the numbers for green and red. From this, if you multiply by 3/3 you can see that 42/60 times it will be a green bead. A reasonable prediction for green beads would then be 42 times. Hope it helps :D

7 0
3 years ago
Help I need this quick
luda_lava [24]
Area of the 2 end triangles plus area of the 2 rectangular sides plus the area of the bottom rectangle

2 end Triangles
=2x(1/2bh)
=2x1/2x4x6
=24

2 side rectangles
=2(lw)
=2x5x13
=130

Bottom rectangle
=6x13
=78

Total = 24 + 130 + 78 =232

6 0
3 years ago
the volume of a solid triangular prism is 726 cubic centimeters. its height is 12 centimeters and its bases are congruent right
aivan3 [116]

9514 1404 393

Answer:

  11 cm

Step-by-step explanation:

The volume of the prism is given by the formula ...

  V = Bh

where B is the area of the triangular base, and h is the height.

Filling in the given information, we find the area of the triangular base to be ...

  726 cm³ = B(12 cm)

  B = 726 cm³/(12 cm) = 60.5 cm²

The area of an isosceles right triangle is half the area of a square with the same side lengths:

  B = 1/2s²

  60.5 = 1/2s²

  s = √(2(60.5)) = √121 = 11

The length of each of the equal sides of the base is 11 cm.

4 0
3 years ago
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