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bazaltina [42]
3 years ago
6

Use the data set to answer questions 1-3.

Mathematics
1 answer:
xxTIMURxx [149]3 years ago
3 0

Answer:

Q3 = 37.5

Step-by-step explanation:

Place the data items in order from least to greatest

5, 8, 10, 20, 25, 30, 35, 40, 45

Find the number in the middle 25

Then take the number on the right, take the two numbers in the very middle add them together and divide by 2. 35+40 = 75/2 =37.5

If you don't have to show your worK:

TI84 calculator [stat][edit]input data [stat][calc][1-var stats]{list:L1][enter][enter]scroll down till Q3

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A pilot flew a 400-mile flight in 2.5 hours flying into the wind. Flying the same rate and with the same wind speed, the return
svetoff [14.1K]

Answer:

40 miles per hour

Step-by-step explanation:

Given that:

Distance = 400 miles

Without tailwind :

Time taken = 2.5 hours

Speed = distance / time

Speed = 400 miles / 2. 5

Speed = 160 miles per hour

With tail wind :

Time taken = 2 hours

Net speed = 160 + x

X. = speed of tail wind

Distance = speed * time

400 = (160 + x) * 2

400 = 320 + 2x

400 - 320 = 2x

80 = 2x

x = 40

Speed of tailwind = 40 miles per hour.

4 0
3 years ago
Help with practice problem
fenix001 [56]

Answer:

y = 2x - 6

Step-by-step explanation:

For parallel lines, the mx (the slope) stays the same but the y-int changes.

7 0
3 years ago
Can someone tell me what Pythagorean theorem is? I really need help.
Musya8 [376]

Answer:

The sum of the squares of the two sides equals the square of the hypotenuse (a² + b² = c²).

Let's say you have a triangle with a 90º angle (also known as a right angle). The two equal legs are a and b while the hypotenuse is the longer side. Hypotenuse is and always will be c.

Here's a problem:

c ⊿ a (12)

  b (6)

C is missing, we have to find C, so here's what we do:

Step 1: You square all the numbers in the equation

12² + 6² = c²

↓

144 + 36 = c

Step 2: You add 144 + 36 and you get 180

Step 3: Then you find the square root >>  \sqrt{180\\ and you get ≈13.4

Now sometimes, the a or b would be missing, for example:

c (13)⊿ a

     b (5)

A is missing (when a or b is missing, use the following formula, do not use the same formula when c is missing)

Step 1: You square all the numbers in the equation

a² + 5² = 13²

a + 25 = 169

For this next part, you must subtract a or b (in this case, b) on both sides, for example:

25 – 25 = 169 - 25

25 – 25 cancels itself out so now we subtract 169 by 25 and we get 144.

Then we find the square root of 144 and we get 12

I hope this helps :)

7 0
3 years ago
If x = 4, what is the value of 10x + 147
Natali5045456 [20]

Answer:

187

Step-by-step explanation:

10*4=40

40+147=187

7 0
3 years ago
Read 2 more answers
Clyde is putting a fence around a rose bush in his garden . The measures of two sides that meet at a corner are 27 feet and 34 f
Nonamiya [84]

Answer:

The  length of the diagonal have to be 43.4 feet

Step-by-step explanation:

we know that

For the corner to be a right angle, the length of the diagonal must satisfy the Pythagorean Theorem

Let

x ----> the  length of the diagonal

so

x^2=27^2+34^2

x^2=1,885\\x=43.4\ ft

therefore

The  length of the diagonal have to be 43.4 feet

3 0
4 years ago
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