3 years ago

Which of the following statements is false?

Mathematics

1 answer:

Goryan [66]3 years ago

3 0

Answer:

A trapezoid is a quadrilateral with exactly one pair of congruent sides.

Step-by-step explanation:

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Line w passes through the points (-2, 3) and (3, 13) . What<br> is the y-intercept of the line w?

Virty [35]

0.83 is they answer

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4 years ago

A coordinator will select 6 songs from a list of 9 songs to compose an event's musical entertainment lineup. How many different

g100num [7]

Answer:

84 different lineups are possible

Step-by-step explanation:

The order in which the songs are chosen is not important. So we use the combinations formula to solve this question.

Combinations formula:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

In this question:

6 musics from a set of 9. So

$C_{9,6} = \frac{9!}{6!(9-6)!} = 84$

84 different lineups are possible

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3 years ago

The elevation E, in meters, above sea level at which the boiling point of a certain liquid is t degrees Celsius is given by th

const2013 [10]

For T = 89.5 degrees C:
E(t) = 1100(90 - 89.5) + 520(90 - 89.5)^2= 1100(0.5) + 520(0.5)^2= 550 + 130= 680 m
For T = 90 degrees C:
E(t) = 1100(90 - 90) + 520(90 - 90)^2= 0 + 0= 0 m (meaning that boiling point is 90 degrees C at ground level)

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4 years ago

What is the circumference of this circle, in centimeters? Use StartFraction 22 over 7 EndFraction for Pi.

yaroslaw [1]

Answer:

66 cm

Step-by-step explanation:

Diameter (d) = 21 cm

$C = \pi \: d = \frac{22}{7} \times 21 = 22 \times 3 = 66 \: cm$

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3 years ago

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I need the value of x. 10x + 4 - 2x = 6x + 9 + 7

erastova [34]

Answer:

x = 6

Step-by-step explanation:

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3 years ago

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