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3 years ago

I NEED THIS DONE IN 3 HOURS AND I CANT FIGURE IT OUT PLEASE HELP

Mathematics

1 answer:

MAVERICK [17]3 years ago

8 0

1. option 1

2. option 1

3. option 4

4. option 1

5. option c

explanation is in picture attached.

excuse me.for my bad handwriting

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Answer soon please!<br> Is PC¯ a perpendicular bisector of AB¯? Explain your answer.

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Answer:

Step-by-step explanation:

perpendicular means to create a right angle. since it doesn't show there are 2 right angles its not perpendicular. it is however a median from point c.

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A group of friends has gotten very competitive with their board game nights. They have found that overall, they each have won an

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The standard deviation is 4 games

A standard deviation (or σ) is a measure of how dispersed the facts are in relation to the mean. Low general deviation method statistics are clustered around the imply, and excessive trendy deviation indicates facts are more unfold.

Don't forget the statistics set: 2, 1, 3, 2, four. The mean and the sum of squares of deviations of the observations from the mean will be 2. 4 and 5.2, respectively. as a consequence, the same standard deviation could be √(5.2/5) = 1.01.

In data, the same old deviation is a degree of the quantity of variant or dispersion of a set of values. A low preferred deviation indicates that the values tend to be close to the mean of the set, while a high general deviation shows that the values unfold out over a much broader variety.

Given that,

mean = μ = 18

standard deviation = Σ = 6

n = 2

μ x = μ = 18 games

√ x = Σ / √ = 6

√2 = 4 games

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2 years ago

A wooden object was discovered at an anthropological dig site. After conducting tests, scientists determined that there was 0.01

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Susie iwndue isjdur Kendrick

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3 years ago

Which expression is NOT equivalent to 125.78 ÷ 1.23?

Viefleur [7K]

Answer:

Choice C.

Step-by-step explanation:

For an expression to be equivalent you need to multiply or divide the 2 numbers in the original expression by the same number.

For example A is equivalent because both 125.78 and 1.23 have been multiplied by 100.

The odd one out is C because 125.78 has been divided by 100 but 1.23 has been multiplied by 10.

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4 years ago

Brady rode his bike 70miles in 4 hours. He rode at an average speed of 17 mph for t hours and at an average speed of 22mph for t

sladkih [1.3K]

Answer:

The Distance cover by Brandy rod at slower speed of bike is 61.2 miles .

Step-by-step explanation:

Given as :

The total distance cover by Brady rode with bike = d = 70 miles

The total time taken by Brady rode with bike = 4 hours

The time taken for average speed of 17 mph = t hours

Let The time taken for average speed of 22 mph = (4 - t) hours

Let The distance cover for slower speed = d miles

<u>Now, From formula </u>

Distance = speed × time

So, Total distance cover = distance at slower speed + distance at faster speed

Or, 70 miles = 17 mph × t hours + 22 mph × (4 - t) hours

Or, 70 = 17 t + 22 × 4 - 22 × t

or, 70 = 88 + 17 t - 22 t

or, 22 t - 17 t = 88 - 70

or, 5 t = 18

∴ t = $\dfrac{18}{5}$

i.e t = 3.6 hours

So, The time taken for average speed of 17 mph = t = 3.6 hours

And The time taken for average speed of 22 mph = (4 - 3.6) = 0.4 hour

So, Distance cover at slower speed = slower speed × time at slower speed

i.e d = 17 mph × 3.6 h

Or, d = 61.2 miles

So, Distance cover at slower speed = d = 61.2 miles

Hence, The Distance cover by Brandy rod at slower speed of bike is 61.2 miles . Answer

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3 years ago