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3 years ago

What is the next number 2 3 5 7 11 13 17?

Mathematics

2 answers:

Natasha_Volkova [10]3 years ago

4 0

Answer: The next number is 19

Step-by-step explanation: The numbers are prime numbers, which means they are numbers bigger than 1 and can only be divided by one and itself. For example, the number 2 can only be divided by 1 and 2. This is the only prime number which is also even. To identify prime numbers, it is important to remember some rules of divisibility:

By 2: all the even numbers are divisible by 2;
By 3: numbers are divisible by 3 when the sum of its digits is a number divisible by 3. Example: 27 = 2+7 = 9, which is divisible by 3, so 27 is also divisible by 3;
By 4: if the last 2 digits of a number are divisible by 4 or the number is divisible by 2 twice;
By 5: numbers which end in 5 or 0;
By 6: if a number is even and divisible by 3;
By 7: if the difference between the double of the last digit and the rest of the number is a number which is multiple of 7;

sammy [17]3 years ago

3 0

<span>19, 23, 29, 31, 37, 41, 43 are the numbers, i believe</span>

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valkas [14]

$\bf \: Circumference \: of \: a \: circle = 2\pi \: r$

$\implies22 = 2 \times \dfrac{22}{7} r$

$\implies22 = \dfrac{44}{7} \times r$

$\implies \: r = \dfrac{22 \times 7}{44}$

$\implies \boxed{ r = \dfrac{7}{2} }$

Now,

$\bf \: Area \: of \: circle = \pi {r}^{2}$

$\rightarrow \: \frac{22}{7} \times ({ \frac{7}{2}) }^{2}$

$\rightarrow \frac{22}{ \cancel7} \times \frac{ \cancel{49}}{4}$

$\rightarrow \: 22 \times \frac{7}{4}$

$\rightarrow \: 11 \times \frac{7}{2}$

$\rightarrow \frac{77}{2}$

$\rightarrow \: 38.5 \: cm {}^{2}$

Area of rectangle = 38.5 cm².

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3 years ago

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Anvisha [2.4K]

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3 years ago

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Zolol [24]

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3 years ago

2x-y=10 y=-4x+2 substitution method

AlladinOne [14]

Answer:

the solution is (2, -6)

Step-by-step explanation:

Substitute the second equation into the first, replacing y in the first:

2x - (-4x+2) = 10

Simplifying, we get:

2x + 4x - 2 = 10, or:

6x = 12, which yields x = 2.

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3 years ago

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Otrada [13]

Answer:

D.) (14, 0); the time it takes for the bird to reach the ground

Step-by-step explanation:

The attached graph shows a plot of the table values and the two offered solution options.

The dependent variable in this scenario is the bird's height above the ground. When that is zero, the bird is on the ground. This fact makes choices B and C seem ridiculous.

We note from the table and graph that the bird is on a path that decreases in height by 3 feet every 2 seconds. If the bird continues that rate of descent, it will reach the ground after 14 seconds.

That is, its (time, height) pair will be (14, 0), matching choice D.

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3 years ago

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