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lyudmila [28]
4 years ago
11

2ft 3in= _in what is the answer

Mathematics
2 answers:
Yuliya22 [10]4 years ago
7 0

Answer:

27in

Step-by-step explanation:

1ft=12in

(12*2)+3=27in

ddd [48]4 years ago
3 0
27 inches gncnfndnxhshnsnxbebsbdbd
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Mauro has 140 ft. of rope. He will cut it into two pieces so that the length of the longer piece is 3 times the length of the sh
Paladinen [302]

Answer:  The answer is 105 ft. and 35 ft.


Step-by-step explanation: Given that Mauro has 140 ft. of rope, which he wants to cut into two pieces such that the length of the longer piece is 3 times the length of the shorter piece.  We need to find the lengths of both the pieces.

Let 'x' and 'y' be the lengths of the longer piece and shorter piece respectively. Then, we will have the following system of equations.

x+y=140,\\\\x=3y.

Substituting the value of 'x' from the second equation in the first equation, we have

x+3x=140\\\\\Rightarrow 4x=140\\\\\Rightarrow x=35.

Thus, length of longer piece = 3 × 35 = 105 ft., and length of shorter piece = 35 ft.


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3 years ago
Battery packs in radio-controlled racing cars need to be able to last pretty long. The distribution of the lifetimes of battery
nlexa [21]

Answer:

(29.13, 30.07)

Step-by-step explanation:

The first step is finding our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.9}{2} = 0.05

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.05 = 0.95, that is between Z = 1.64 and Z = 1.65, so we use z = 1.645.

Now, find M as such:

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The upper end of the interval is the sample mean added to M. So it is 29.6 + 0.47 = 30.07 hours

The 90% confidence interval is (29.13 hours, 30.07 hours).

The correct answer is:

(29.13, 30.07)

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3 years ago
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What is the equation of the line that passes through the point (-5,7) and and has a slope of -2/5?
Vinvika [58]

Answer:

y=-2/5 +7

Step-by-step explanation:

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3 years ago
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