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gayaneshka [121]

4 years ago

10

Heo started to solve the quadratic equation (x + 2)2 – 9 = –5. He added 9 to both sides and the resulting equation was (x + 2)2

= 4. Next, he took the square root of each side. Which was the resulting equation of that step?

1 answer:

Rzqust [24]4 years ago

3 0

Step-by-step explanation:

After taking the square root:

x + 2 = ±2

Notice that x + 2 can also equal -2, because (-2)² = 4.

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Verizon [17]

P= 0.107848

(3.5) (7.8) / 125.8 = 16.5p / 8.2

Cross multiply:

(3.5) (7.8) / 125.8 = 16.5p /8.2

(3.5) (7.8)* (8.2) = 16.5p* (125.8)

223.86 = 2075.7p

Flip the equation:

2075.7p = 223.86

Divide bith sides by 2075.7:

2075.7p / 2075.7 = 223.86 / 2075.7

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3 years ago

While driving in an exotic foreign land, you see a speed limit sign that reads 180,000 furlongs per fortnight. How many miles pe

erma4kov [3.2K]

Answer:

66.96

Step-by-step explanation:

Furlong = 1/8 mile

Fortnight = 14 days

Day = 24 hours

If the speed limit is 180,000 furlongs per fortnight, converting the units from furlongs per fortnight to miles per hour:

$V=180000\frac{furlong}{fortnight}*\frac{1\ mile}{8\ furlong}*\frac{1\ fortnight}{14\ days}*\frac{1\ day}{24\ hours} \\V=66.96\ mph$

The speed limit on this exotic land in 66.96 miles per hour.

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3 years ago

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Vesna [10]

Answer:

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Step-by-step explanation:

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