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2 years ago

In a right triangle, a = 14.2 cm and b = 13.9 cm. Find c. Round to the nearest tenth.

Mathematics

1 answer:

iogann1982 [59]2 years ago

8 0

Answer:

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Step-by-step explanation:

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2 years ago

Solve the quadratic equation for x. What is the product when the roots are multiplied? (x + 2)2 = 1 A) −3 B) −6 C) −9 D) 3

ehidna [41]

Answer:

Step-by-step explanation:

To solve the quadratic equation, use the inverse operation to squaring. This will undo the exponent and allows x to be isolated. The inverse operation is the square root. This is called the square root property of equality.

(x + 2)² = 1

√(x+2)² = √1

(x+2) = ±1

x = 1 -2 and x = -1 - 2

x = -1 and x = -3

The product of the roots -1 and -3 is -1*-3 = 3

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2 years ago

15 feet to 33 feet percent of change

Usimov [2.4K]

The answer is 220%. Here is a picture of my work.

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2 years ago

Find the number if:

Paraphin [41]

Answer:

162 and $\frac{5}{2}$

Step-by-step explanation:

To find the original number multiply by the reciprocal of the multiplier, that is

90 × $\frac{9}{5}$ = $\frac{810}{5}$ = 162

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Similarly

Change the mixed number into an improper fraction

5 $\frac{5}{6}$ = $\frac{35}{6}$ , then

$\frac{35}{6}$ × $\frac{3}{7}$ ( cancel 35 and 7 by 7 / cancel 6 and 3 by 3 )

= $\frac{5}{2}$ × $\frac{1}{1}$

= $\frac{5}{2}$

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2 years ago

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IrinaK [193]

Answer:

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