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2 years ago

Could someone please help me?

Mathematics

1 answer:

SpyIntel [72]2 years ago

3 0

Answer:

ab=9 and ac=12

Step-by-step explanation:

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Help pleaseeeeeeeeeeeeeeeeeeeeeee

bixtya [17]

Answer: $\bold{(1)\ \dfrac{19,683}{64}\qquad (2)\ 16}$

Step-by-step explanation:

(1) (12, 18, 27, ...)

The common ratio is:

$r=\dfrac{a_{n+1}}{a_n}\quad r =\dfrac{18}{12}=\boxed{\dfrac{3}{2}}\quad \rightarrow \quad r=\dfrac{27}{18}=\boxed{\dfrac{3}{2}}$

The equation is:

$a_n=a_o(r)^{n-1}\\\\Given:a_o=12,\ r=\dfrac{3}{2}\\\\\\Equation:\\a_n =12\bigg(\dfrac{3}{2}\bigg)^{n-1}\\\\\\\\9th\ term:\\a_9=12\bigg(\dfrac{3}{2}\bigg)^{9-1}\\\\\\a_9=12\bigg(\dfrac{3}{2}\bigg)^{8}\\\\\\.\quad =\large\boxed{\dfrac{19643}{64}}$

$(2)\qquad \bigg(\dfrac{1}{16},\dfrac{1}{8},\dfrac{1}{4},\dfrac{1}{2}\bigg)\\\\\\\text{The common ratio is}:\\\\r=\dfrac{a_{n+1}}{a_n}\quad r=\dfrac{\frac{1}{8}}{\frac{1}{16}}=\boxed{2}\quad \rightarrow \quad r=\dfrac{\frac{1}{4}}{\frac{1}{8}}=\boxed{2}$

The equation is:

$a_n=a_o(r)^{n-1}\\\\Given:a_o=\dfrac{1}{16},\ r=2\\\\\\Equation:\\a_n =\dfrac{1}{16}(2)^{n-1}\\\\\\\\9th\ term:\\a_9=\dfrac{1}{16}(2)^{9-1}\\\\\\a_9=\dfrac{1}{16}(2)^{8}\\\\\\.\quad =\large\boxed{16}$

3 0

2 years ago

What is the FCC of 12 and 30? How to use the gcf to factor 12+30

Leno4ka [110]

Can i get time to answer this question.

3 0

3 years ago

PLEASE HELP I WILL GIVE 50 POINTS!

Anastaziya [24]

Answer:

Domain: x is all real numbers

Range: y is less than or equal to 5

3 0

3 years ago

SOLVE ANY BUT PUT THE NUMBER WITH IT

zubka84 [21]

1.
k = 1
J = 7(1) + 5
J = 12

k = 1 + 2 = 3
J = 7(3) + 5
J = 26

26 - 12 = 14
J increases by 14.

2.
1/6 = 0.16 false (1/6 = 1.67)
0.08 = 4/5 false (0.08 = 8/100 = 2/25)
0.25 = 1/4 true (0.25 = 25/100 = 1/4)
1/3 = 0.3 true (if rounded)


3.
12 candles in 3 hours
12 ÷ 3 = 4
4 candles in 1 hour
4 × 8 = 32
32 candles in 8 hours

4.
$3.45 for 64 ounces
3.45 ÷ 64 = 0.05
$0.05 or 5 cents per ounce

5.
75 is what percent of 250?
75 ÷ 250 = 0.3
0.3 × 100 = 30
30%

8 0

3 years ago

Which numeration system is also known as 10 base numeration system

Kobotan [32]

Answer:

decimal system

..........

8 0

2 years ago