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NemiM [27]
3 years ago
7

Someone please help me answer this!

Mathematics
2 answers:
Andrew [12]3 years ago
7 0

Answer:

67

Step-by-step explanation:

I just know because I a smart people you know fow lol

vivado [14]3 years ago
5 0

Answer:

72 mi is the answer.

Step-by-step explanation:

a = 30 mi

b = ?

c = 78 mi

According to the Pythagoras theorem,

a² + b² = c²

30² + b² = 78²

900 + b² = 6084

b² = 6084 - 900

b² = 5184

b = 72 mi

∴ the eastbound airplane has travelled 72 mi.

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i think it is 487.5. i may be wrong tho. hope this helps!

3 0
3 years ago
Read 2 more answers
3/4 (x - 3) - 5 = 1/8 ( x - 1 )
KonstantinChe [14]

Answer:

x = - \frac{57}{5}

Step-by-step explanation:

\frac{3}{4} (x - 3) - 5 = \frac{1}{8} (x - 1)

Multiply through by 8 to clear the fractions

6(x - 3) - 40 = x - 1 ← distribute parenthesis and simplify left side

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3 years ago
What is the standard deviation of the data set given below?<br> 4,7, 8, 9, 12
larisa [96]

Answer:

I think 7

Step-by-step explanation:

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7 has no factor.

4= 2×2

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3 0
4 years ago
8 batteries cost 10 dollars how much do 6 batteries cost
pychu [463]

6 batteries cost $7.50 because u divide 10 by 8 and then multiply by 6

8 0
3 years ago
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Triangle ABC is shown on the coordinate plane below. The triangle is reflected across the y-axis and then translated 3 unit to t
babunello [35]

Answer:

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