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Elan Coil [88]
3 years ago
11

which expression completes the equation showing the next step monte needs to take n×0.4=8 n×0.4÷0.4=?

Mathematics
1 answer:
forsale [732]3 years ago
3 0
N * 0.4 =8n*0.4:0.4=2
8 2*0.4:0.4= 32.8:0.4=82
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Awsner this with step by step (can use calculator)​
ss7ja [257]

Answer:

x = 9.2

x =22.0

x = 8.7

Step-by-step explanation:

Required

Find x

(a)

x is calculated using tangent formula

\tan(57) = \frac{x}{6}

Make x the subject

x = 6 * \tan(57)

x = 6 * 1.5399

x = 9.2394

x = 9.2 --- approximated

(b):

x is calculated using cosine formula

\cos(60) = \frac{11}{x}

Make x the subject

x = \frac{11}{\cos(60)}

x = \frac{11}{0.5}

x =22.0

(c):

x is calculated using sine formula

\sin(60) = \frac{x}{10}

Make x the subject

x = 10 * \sin(60)

x = 10 * 0.8660

x = 8.660

x = 8.7 --- approximated

3 0
3 years ago
Explain why you think it is or is not possible to give the exact length of the circumference as a decimal.
Naddik [55]

Answer:

It is not possible.

Step-by-step explanation:

How exact is exact? Since the circumference of a circle depends on pi, you have to discuss the nature of pi. C = pi * the diameter.  

You are getting to a place where the air is pretty thin when you start dealing with pi. Pi has an infinite number of digits associated with it. Not only that, but if I were to tell you what the 100th digit was, you would have a random chance of figuring out what the 99th digit was or the 101 digit should be, that's only to the hundredth digit. The circumference would go beyond what we can measure with the thousandth digit.

In addition, pi is an irrational number. That means it cannot be represented by any kind of a fraction.


8 0
3 years ago
2. Camilla sold 181 tickets for the school play. Student tickets cost $12 and adult
alekssr [168]
She sold 5 tickets that night
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The two-way table is attached.

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Of the 26 that are right brain dominant, 21 are right handed; this means 26-21=5 are left handed.

Of the 22 left-handed people, 5 are right brain dominant; this means 22-5 = 17 are left brain dominant.

Of the 37 left brain dominant people, 17 are left handed; this means 37-17=20 are right handed.

8 0
3 years ago
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Does the order in which you add two integers with the same sign affect the sum
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 when you add two negatives its just like regular number, -3+-5=-8 same as 3+5=8
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