4 years ago

Can anyone please help me?? Thanks!

Mathematics

2 answers:

enot [183]4 years ago

7 0

Multiply and then add.

(3 X 6) +

arlik [135]4 years ago

5 0

First blank is 21, and the second is 10

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alexdok [17]

The answer is a^2-64

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3 years ago

Find the 7th term of the geometric sequence: 4, 14, 49, ...

belka [17]

Answer:

Step-by-step explanation:

$a_2=a_1*r=>14=4*r=>r=\frac{7}{2}\\a_n=a_1*r^{n-1}=>a_7=a_1*r^{7-1}=4*(\frac{7}{2})^6=\frac{117649}{16}\\\\a_7=\frac{117649}{16}$

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3 years ago

A butcher is dividing a round of beef into 3 equal-sized roasts. If each roast weighs 7.9 pound, and there are 1.4 pounds of bee

RoseWind [281]

Each roast is 7.9 lbs so you multiply that by 3.
7.9x3=23.7
now add 1.4
23.7+1.4=25.1
the round of beef weighed 25.1 pounds

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4 years ago

An empty propane tank for a grill weighs 17 pounds. A full propane tank weighs 37 pounds. If a propane tank weighs 35 pounds, wh

Vinil7 [7]

Answer:

not 100

Step-by-step explanation:

7 0

3 years ago

Convert 6.1212 into a rarional number

Ahat [919]

in short, we will start off by making the left-side of the dot and the recurring numbers a variable, say "x", then multiplying it by some power of 10 that moves the recurring numbers over to the left, let's do so

$\bf x = 6.\overline{12}~\hspace{10em} \begin{array}{llll} 100\cdot x&=&612.\overline{12}\\\\ &&606+6.\overline{12}\\\\ &&606+x \end{array} \\\\\\ 100x=606+x\implies 99x=606\implies x = \cfrac{606}{99}\implies x = \cfrac{202}{33}\implies x = 6\frac{4}{33}$

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3 years ago