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dexar [7]
3 years ago
10

Evaluate 5 - 3(-2) + 1-3|​

Mathematics
2 answers:
Naya [18.7K]3 years ago
6 0

Answer:

9

Step-by-step explanation:

5 - 3 (-2) + 1- 3

5 - (- 6) + 1 - 3

5 + 6 + 1 - 3

11 + 1 - 3

12 - 3

9

<h2>the bold means what is happening to get to the total answer</h2>

marishachu [46]3 years ago
5 0

Answer:

9

Step-by-step explanation:

5 - 3(-2) + 1-3

5 + 6 - 2

11 - 2

9

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Calculate the mean, median and mode of the following data.
garik1379 [7]

Answer:

d.mean =15, median =15.5, mode = 16

Step-by-step explanation:

hello,

to find the mean, you add all the numbers together and divide it by the total number of numbers. so that would be 150 (total sum) divided by 10 (number of numbers) to get 15.

to find the median, you would organize the numbers from least to greatest and find the middle number which is 15.5.

last but not least, to find the mode, just look for the number that appears most often. Therefore, the mode would be 16.

hope this helped!

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3 years ago
Mike says the opposite of 5 is –5 and the absolute value of 5 is –5. Is he correct?
WARRIOR [948]

Answer: No he is not correct.

Step-by-step explanation: The absolute value of 5 is 5. The absolute value of -5 is also 5.

8 0
3 years ago
The length of a shadow of a tree is 150 feet when the angle of elevation of the sun is 39°. Approximate the height of the tree.
fomenos

Answer:

The height of tree is approximately 121.5 feet.

Step-by-step explanation:

We are given following in question:

Length of shadow = 150 feet

Angle of elevation of the sun =

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The tree and the shadow forms a right angled triangle.

Thus, with the help of trigonometric relation, we can write:

\tan \theta = \dfrac{\text{Height of tree}}{\text{Length of shadow}}

Let x feet be the height of tree.

Putting all the values, we get,

\tan 39^\circ = \dfrac{x}{150}\\\\0.80978 = \dfrac{x}{150}\\\\\Rightarrow x = 150\times 0.80978\\\Rightarrow x = 121.467 \approx 121.5

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