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Art [367]
3 years ago
10

(answer with "sometimes, always, or never true") A decimal number is an irrational number.

Mathematics
1 answer:
xxMikexx [17]3 years ago
7 0

Answer:

Step-by-step explanation:

Sometimes.  If the decimal never repeats itself and never ends, like pi, it is irrational.  But if the decimal is .5 or .333333333333333... it either terminates (ends) or repeats itself forever, making it rational.

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Mike earned $11.76 per hour for working 23.5 hours last week. how much money did mike earn last week?
densk [106]
Just multiply.

11.76 * 23.5= 276.36

So Mike earned $276.36 last week
6 0
3 years ago
15% tip to 100 cents why does this make a unit less factor?
evablogger [386]
15% and the corresponding 0.15 is by necessity unit-less; it's just a multiplier.  If you run up a $1 bill and wish to tip 15%, multiply $1 by 0.15, obtaining $0.15.
Then the total due would be $1 plus $0.15, or $1.15.

Note that $0.15
                -------- = 0.15 is unit-less
                   $1
4 0
3 years ago
A cone with radius 5 units is shown below. Its volume is 105 cubic units. Find the height of the cone.
Ainat [17]

Answer:

height of the cone  = 4.01273885 units

Step-by-step explanation:

Volume of a cone(V) is given by:

V = \frac{1}{3} \pi r^2h             ....[1]

where,

r is the radius and h is the height of the cone.

As per the statement:

A cone with radius 5 units and ts volume is 105 cubic units

⇒r = 5 units and V = 105 cubic units

Substitute these given values and use \pi = 3.14 in [1] we have;

105 = \frac{1}{3} \cdot 3.14 \cdot 5^2 \cdot h

Multiply both sides by 3 we have;

⇒315 = 78.5 \cdot h

Divide both sides by 78.5 we have;

4.01273885 = h

or

h = 4.01273885 units

Therefore, the height of the cone is, 4.01273885 units

6 0
3 years ago
Read 2 more answers
6^2r=800 round it to the nearest hundreth
kogti [31]

Question: solve for r: 6 ^ (2r) = 800


Answer: 1.87


Step-by-step explanation:

6 ^ (2r) = 800

log(6 ^ (2r)) = log(800)

2r log(6) = log(800)

r = log(800) / (2 log(6))

r = 1.86537641979

round

r = 1.87

log can be any logarithm function.


6^(2×1.86) = 784.734328546

6^(2×1.87) = 813.365367336


7 0
3 years ago
0.3 x 103<br>0 3 x 1025<br>Write the following as an ordinary number. [<br>(1 Point<br>3x10​
Ne4ueva [31]
0.3 x 103 = 30.9
0.3 x 1025 = 307.5

3 x 10^5 = 300,000
3 0
2 years ago
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