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e-lub [12.9K]
3 years ago
11

A twin-engine plane flies 1050 mi in the same amount of time it takes a single engine plane to fly 800 mi. The rate of the is tw

in-engine plane is 50 mph faster than the rate of the single-engine plane. Find the rate of the single engine plane.
Mathematics
1 answer:
Ostrovityanka [42]3 years ago
4 0
The correct answer is B
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2x(x+1)-2=2(x-3)(x+3)
Ilya [14]

Answer:

x=-8

Step-by-step explanation:

I solved for x and got this :)

Hope this helps :D

5 0
3 years ago
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Can someone please help me
Nikolay [14]

Answer:

B

Step-by-step explanation:

x²+2x=19 add 1 to both sides which gives you x²+2x+1=20

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6 0
3 years ago
If the lowest value of a data set increases what happens to the standard deviation
lara [203]

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It becomes lower

Step-by-step explanation:

This is because as the lowest value becomes larger, <em>one of the values becomes closer to the mean</em>, and as more numbers are closer to the mean, the standard deviation becomes lower.

4 0
3 years ago
after a birthday party, 1 4 of a large cake was left. If this piece of cake was shared equally among the 6 people, what fraction
il63 [147K]

The 6 people each got \frac{1}{24}. To get this answer you need to divide the \frac{1}{4} of the cake among 6 people.

Equation ⇒ \frac{1}{4} x \frac{1}{6}

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8 0
3 years ago
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If sin 0=3/5, then cos 0=
vaieri [72.5K]

Answer:

\frac{4}{5}

Step-by-step explanation:

Given

sinΘ = \frac{3}{5} = \frac{opposite}{hypotenuse}

Then the hypotenuse = 5 and one leg of the right triangle is 3

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x² + 9 = 25 ( subtract 9 from both sides )

x² = 16 ⇒ x = 4

cosΘ = \frac{adjacent}{hypotenuse} = \frac{4}{5}

7 0
3 years ago
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