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astraxan [27]
3 years ago
8

Please help me now plz I will mark you brainliest

Mathematics
1 answer:
jek_recluse [69]3 years ago
6 0

Answer:

The vertex angle is 180-(60+75)=45.

k/sin75=900/sin45 so k=900sin75/sin45=1229km approx.

Step-by-step explanation:

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What is the simplified expression for Negative 3 (2 x minus y) + 2 y + 2 (x + y)?
Lana71 [14]

Answer:

7y - 4x

Step-by-step explanation:

-3 (2x-y)+2y+2(x+y)\\

Step 1:  Open the brackets

= -6x+3y +2y +2(x+y)\\=-6x +3y + 2y +2x + 2y

Step 2: Bring the similar variables together

=-6x +2x \ +3y + 2y + 2y

Step 3: Simplify by adding/subtracting the coefficients of the similar variables

= - 4x +7y

Step 4: Rearrange as required.

5 0
3 years ago
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The following are the ages of 13 history teachers in a school district. 24, 27, 29, 29, 35, 39, 43, 45, 46, 49, 51, 51, 56 Notic
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Answer:

Below in bold.

Step-by-step explanation:

Minimum 24

Lower quartile 29

Median  43

Upper quartile = (49 + 51) / 2 =  50

Maximum = 56

Interquartile range =  50-29 = 21.

5 0
2 years ago
Word Problem 3 Priscilla works 43 hours a week for eight weeks. If she makes $14.73 per hour, how much money did she make in the
VLD [36.1K]

Answer:

$5067,12

Step-by-step explanation:

14,73*43*8

4 0
2 years ago
For every 9 minutes of music Shawn listens to, Greg listens to 4 minutes of music. How many times more minutes of music does Sha
Vaselesa [24]
Hello.

The mathematical concept of this problem is basic once you get down to it. The question asks, "How many times more minutes does Shawn listen to than Greg?"

Remember the "How many" rules:
· "How many more" suggests subtraction
· "How many times" suggests division

Let's also take a look at our opening sentence: "For every 9 minutes of music Shawn listens to, Greg listens to 4 minutes of music." This means we can set it up as a fraction, as we have the phrase "For every" in our sentence. So, let's do that.

\frac{9}{4} is our fraction;
To simplify, we need to divide our numerator (the number on the top) by our denominator (the number on the bottom).
9 / 4 = 2.5

This is our rate, or how many times more music Shawn listens to than Greg.

Your answer is: "Shawn listens to 2.5 times more music than Greg."

I hope this helps!
7 0
3 years ago
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If a plane loses 1400 feet in altitude over a horizontal distance of 8000 feet what is the slope?
Andrew [12]
This would be a rise over run solution, which means the answer would be -1400/8000, when simplified this equals -40/7, a.
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3 years ago
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