2 years ago

What is the sum of the first five prime numbers? 18 26 28 39

Mathematics

1 answer:

Kitty [74]2 years ago

8 0

Answer:

Step-by-step explanation:

So our first 5 prime numbers are 2,3,5,7,11. Hence, the answer is 28

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The algebraic form of an arithmetic sequence is 5n-2<br>a) What is its common difference?

Alexxandr [17]

Answer:

Step-by-step explanation:

[math]

U_{n} = 5n - 2 \\

Common Difference = U_{n+1} - U_{n} \\

= [5(n + 1) - 2] - [5n - 2] = [5n + 5 - 2] - [5n - 2]\\

= 5n + 5 - 2 - 5n + 2\\

= 5

[/math]

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3 years ago

123,456.78901 to ten – thousandths<br> -

dezoksy [38]

Answer:

123,456.789

Step-by-step explanation:

The ten thousandth place is less than 5.

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3 years ago

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Solve the following system by graphing and identify the point of intersection -5x+2y=-4 2x-y=2

FrozenT [24]

Answer: Point of intersection (0, -2)

Step-by-step explanation:

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1 year ago

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What is the equation of the line perpendicular to y=2x+3.14 going through the points (2,4)?

inessss [21]

Answer:

$x+2y-10=0$

Step-by-step explanation:

Consider an equation: $y=mx+c$

Here, m is the slope of the line and c is the y-intercept.

Given equation is $y=2x+3.14$

Here, slope is $m=2$

As product of slopes of two perpendicular lines is equal to $-1$ , slope of the required line is $m_1=\frac{-1}{m}=\frac{-1}{2}$ .

Let $(x_1,y_1)=(2,4)$

Equation of the required line is $y-y_1=m_1(x-x_1)$

$y-4=\frac{-1}{2}(x-2)\\2(y-4)=-1(x-2)\\2y-8=-x+2\\x+2y-8-2=0\\x+2y-10=0$

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3 years ago

Plz help me I have know clue

masya89 [10]

The figure is called an Acute Triangle. The Area is 199.96 centimeters squared. The perimeter (or circumference) is 68.

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