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saul85 [17]
3 years ago
10

Given that B is between A and C, find the indicated length.

Mathematics
1 answer:
maxonik [38]3 years ago
4 0

Answer:25.3

Step-by-step explanation:

Since B is between A and C, you can use parts-whole postulate to infer that AB+BC=AC.

And since AB and BC are given, substitute in their values, and solve.

21+4.3=25.3=AC

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The equation C(l) = l3 – l2 + l + 2.5 models the cost to mail a package as a function of its length. To the nearest quarter inch
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Answer:

Step-by-step explanation:

Set the cost equation C(l) = l3 – l2 + l + 2.5 equal to $11.00 and solve for l:

                                     C(l) = 2l + 2.5 = $11, or

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3 years ago
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3 years ago
Find the height of the building to the nearest foot in the diagram below. Show work.
stira [4]

Answer:

height : 150 feet

Step-by-step explanation:

\sf \sf tan(x)= \dfrac{opposite}{adjacent}

using tan rule:

\hookrightarrow \sf tan(62)= \dfrac{b}{80}

\hookrightarrow \sf b = tan(62)*80

\hookrightarrow \sf b =150.46 \ feet

5 0
2 years ago
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Hey guys a have wut is 2xA(19x56)Ax12 thanks if u can help me
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8 0
2 years ago
What is the sum of a geometric sequence 1, 3, 9, ... if there are 12 terms?
attashe74 [19]
We know that
a1=1
a2=3
a3=9
a2/a1=3/1----> 3
a3/a2=9/3----> 3
<span>common ration r is equal to 3
number of terms n  is 12

The </span><span>Sum of geometric series is given by the formula
</span>Sum=a1*[1-r<span>^n]/[1-r]
</span>Sum=1*[1-3^12]/[1-3]-----> Sum=[1-3^12]/[1-3]----> [3^12-1]/[3-1]
<span>Sum=531440/2-----> 265720

the answer is
265720



</span>
4 0
3 years ago
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