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stellarik [79]
3 years ago
11

Step by step plz 2x^2 + x - 3

Mathematics
1 answer:
Aleks04 [339]3 years ago
7 0

Answer:

x = 1 or x = -3/2

Step-by-step explanation:

Solve for x over the real numbers:

2 x^2 + x - 3 = 0

The left hand side factors into a product with two terms:

(x - 1) (2 x + 3) = 0

Split into two equations:

x - 1 = 0 or 2 x + 3 = 0

Add 1 to both sides:

x = 1 or 2 x + 3 = 0

Subtract 3 from both sides:

x = 1 or 2 x = -3

Divide both sides by 2:

Answer: x = 1 or x = -3/2

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umka21 [38]

Answer:

Exact = 4.944 Rounded = about 5 Reality = 4 since there can’t be 99.4% of an human.

Step-by-step explanation:

0.8/100 = x/618

618(0.8) = 100x

494.4 = 100x

/100. /100

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7 0
3 years ago
A vendor supplies 32 litres of milk to a hotel in the morning and 68 litres of milk in the evening. If the milk costs ` 45 per l
tekilochka [14]

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4500

Step-by-step explanation:

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3 years ago
Read 2 more answers
2 ft
sdas [7]

Answer:

88/7 ft = 12.6 ft (nearest tenth)

Step-by-step explanation:

Circumference of a circle = 2\pir

<u>Radius of inner circle</u>

Given:

  • circumference of inner circle = 22ft
  • \pi = 22/7

⇒ 22 = 2 x (22/7) x r

⇒ r = 3.5

So the radius of the inner circle is 3.5 ft

<u>Radius of outer circle</u>

If the distance between the inner circle and the outer circle is 2 ft, then the radius of the outer circle = 3.5 + 2 = 5.5

<u>Circumference of outer circle</u>

Therefore, circumference of outer circle:

=  2 x (22/7) x 5.5

= 242/7 ft

<u>Difference between circumferences</u>

Difference = outer circle circumference - inner circle circumference

                  = 242/7 - 22

                  = 88/7 ft

                  = 12.6 ft (nearest tenth)

4 0
2 years ago
HELPPPPPPP PLZZZZ I DONT GET IT
expeople1 [14]

Answer:

See below

Step-by-step explanation:

1) \:  \frac{1}{2}  \times 5 \times 6 = 15 \:  {cm}^{2}  \\  \\ 2) \:  \frac{1}{2}  \times 10 \times 6 = 30 \:  {cm}^{2}   \\  \\ 3) \: 5 \times 3 = 15 \:  {cm}^{2}  \\  \\ 4) \: 10 \times 6= 60\:  {cm}^{2}

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3 years ago
Solve for x . Help me
solmaris [256]
X = 26 because all the angles in a triangle add up to 180.
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3 years ago
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