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4 years ago

Find CD, please i need help

Mathematics

1 answer:

Sidana [21]4 years ago

4 0

You are given the full length and the lengths of all the sections other than CD.

Subtract the given sections from the entire length to get CD.

12 1/2 - 6 1/2 = 6

CD = 6

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Find the mean absolute deviation for the set {-32, 9, 11, 12}

Zolol [24]

<h3>Answer:</h3>

Step-by-step explanation:

{-32, 9, 11, 12}

first, find the mean (Find the sum of the data values, and divide the sum by the number of data values )

(-32) + 9 + 11 + 12 = 0

0/0 = 0

then, find the absolute value of the difference between each data value and the mean: |data value – mean|.

-32 - 0= -32

9 -0 = 9

11 -0 = 11

12 -0 = 0

finally, find the sum of the absolute values of the differences. Divide the sum of the absolute values of the differences by the number of data values.

0 - 0 / 4 = 0

answer is 0 (A)

7 0

4 years ago

please help me! What is the approximate value of y? Round to the nearest tenth. A.) 3.1 B.) 3.9 C.) 4.6 D.) 5.4

cluponka [151]

Answer:

Option (C). 4.6 cm

Step-by-step explanation:

In the figure attached,

A right triangle has been given with hypotenuse = 6 cm, leg 1 = x cm, leg 2 = y cm and one angle = 50°

By applying Sine rule in this triangle,

Sin(50)° = $\frac{\text{Opposite side}}{\text{Hypotenuse}}=\frac{\text{Leg 1}}{\text{Hypotenuse}}$

Sin(50)° = $\frac{x}{6}$

x = 6(Sin50°)

x = 4.59

x ≈ 4.6 cm

Therefore, Option (C) will be the answer.

6 0

4 years ago

1. Ashley and Emma are reading the same article. Ashley is on page 1 of

konstantin123 [22]

Answer:

It will take 6 minutes by Ashley and Emma to read the same amount of pages.

Step-by-step explanation:

Let in 't' minutes Ashley and Emma will read the same amount of pages.

If Ashley can read one page in a minute then she can read the number of pages in t minutes = 1×t =t

If she starts from page 1 then after time 't' she will be at the page = (t + 1)

Similarly, if Emma takes 3 minutes to read the amount of pages = 1

Then she can read amount of pages in t minutes = $\frac{t}{3}$

If Emma starts from page 5 then after t minutes she will be at the page = $(\frac{t}{3}+5)$

If both have read the same amount of pages then,

$(t+1)=\frac{t}{3}+5$

$t-\frac{t}{3}=5-1$

$\frac{2t}{3}=4$

t = 6 minutes

Therefore, it will take 6 minutes by Ashley and Emma to read the same amount of pages.

7 0

3 years ago

1. If Sarah starts with $10 and spends all but $3, how much money does she have left?

fiasKO [112]

10-3=7 so 10-7=3 so 7 dollars spent, 3 dollars left.

8 0

3 years ago

A set of marbles can be divided in equal shares among $2$, $3$, $4$, $5$, or $6$ children with no marbles left over. What is the

pashok25 [27]

Answer:

Step-by-step explanation:

The least common multiple of 2, 3, 4, 5, and 6 is 3×4×5 = 60.

2, 3, 5 are primes, there will be at least one factor of each of those in number you're looking for.

4 = 2², so there must be 2 factors of 2 in the number you're looking for.

6 = 2×3, so is already covered by the factors we have listed so far.

LCM = 2²×3×5 = 60

The least number divisible by numbers 2 through 6 is 60.

4 0

3 years ago