3 years ago

Find x. Do not round your answer. 12 cm 6 cm No links

Mathematics

1 answer:

ololo11 [35]3 years ago

8 0

Answer:

679.6

Step-by-step explanation:

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Suppose a student is totally unprepared for a five question true or false test and has to guess for every question. Getting one

MrRa [10]

Answer:

1/32

Step-by-step explanation:

½×½×½×½×½ = 1/32

3 0

3 years ago

The Johnson twins were born nine years after their older sister. This year, the product of the three siblings ages is exactly 18

KATRIN_1 [288]

Answer: The age of the twins is 10 years.

Step-by-step explanation:

Suppose the age of older sister be x

Let the age of twins sister be x-9, as they are born after 9 years.

Product of their ages be

$x(x-9)(x-9)\\\\=x(x^2-18x+81)\\\\=x^3-18x^2+81x$

Sum of their ages will be

$x+x-9+x-9\\\\=3x-18$

According to question,

$1861+3x-18=x^3-18x^2+81x\\\\x^3-18x^2+81x-3x+18-1861=0\\\\x^3-18x^2+78x-1843=0\\\\x=19$

So, Age of older sister will be 19 years.

Age of the twins will be

$19-9=10\ years$

Hence, the age of the twins is 10 years.

3 0

3 years ago

There are 36 carpenters in a crew.

dolphi86 [110]

Answer:

Step-by-step explanation:

27 ÷ 36 = 0.75

0.75 → 75%

75% of the crew are men

Hope this helped! :)

7 0

4 years ago

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Use the replacement set {3, 4, 9} to find the solution of the equation below.<br> 3n−18=9

Mrac [35]

Answer:

$n=9$

Step-by-step explanation:

$3n-18=9$

$3n+18=$ +18

$3n=27$

$3(9)=27$

$n=9$

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3 years ago

The graph below represents the average monthly rainfall (y), in inches, in

White raven [17]

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The amount of rainfall increases as an exponential function of time.

Step-by-step explanation:

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3 years ago

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