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3 years ago

Calculate the sum of all odd number between 2 and 8

Mathematics

2 answers:

Degger [83]3 years ago

7 0

Answer:

The sum of all odd number between 2 and 8 is = 3,5,7

=15

Fiesta28 [93]3 years ago

5 0

Answer:

The sum of all odd numbers between 2 and 8 is 15.

Step-by-step explanation:

The numbers between 2 and 8 are: 3, 4, 5, 6, and 7. The odd numbers from this set are 3, 5, and 7.

3 + 5 + 7 = 15

The sum of all odd numbers between 2 and 8 is 15.

Hope this helps,

~ Nicki ~

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Help please I need 5 points total. i need 2 to left of vertex. i need vertex. i need 2 to right of vertex. Please, quickly, I am

zlopas [31]

We are given with a quadratic equation which represents a Parabola , we need to find the vertex of the parabola , But let's recall that , For any quadratic equation of the form ax² + bx + c = 0 , the vertex of the parabola is given by ;

${\quad \qquad \boxed{\bf{Vertex = \left(\dfrac{-b}{2a},\dfrac{-D}{4a}\right)}}}$

Where , D = b² - 4ac (Discriminant)

Now , On comparing the given equation with ax² + bx + c , we have

⇢⇢⇢ a = 1 , b = - 10 , c = 27

Now , Calculating D ;

${:\implies \quad \sf D=(-10)^{2}-4\times 1\times 27}$

${:\implies \quad \sf D=100-108}$

${:\implies \quad \bf \therefore \quad D=-8}$

Now , Calculating the vertex ;

${:\implies \quad \sf Vertex =\bigg\{\dfrac{-(-10)}{2\times 1},\dfrac{-(-8)}{4\times 1}\bigg\}}$

${:\implies \quad \sf Vertex = \left(\dfrac{10}{2},\dfrac{8}{2}\right)}$

${:\implies \quad \bf \therefore \quad Vertex = (5,2)}$

Hence , The vertex of the parabola is at (5,2)

Note :- As the Discriminant < 0 . So , the equation will have imaginary roots .

Refer to the attachment for the graph as well .

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3 years ago

Write and solve an equation to find the unknown side length x (in feet).

Setler79 [48]

Answer:

11.9 feet

Step-by-step explanation:

We want to find the value of 'x' and we are asked to set up an equation to find the value of x. In equation we must remember to get all the numerical values to one side and all the non-numerical values to the other while remembering to keep the equation balanced for example if we add 4 on one side we must do it to the other side to keep the equation balanced so,

→ x + 5.2 + 11.1 + 6.4 = 34.6

⇒ Simplify equation

→ x + 22.7 = 34.6

⇒ Minus 22.7 from both sides to isolate x

→ x = 11.9 feet

7 0

3 years ago

Review later

____ [38]

It would be 50 times because 15 divided by 3 is 5 and you just add your 0 back and get 50! hope this helps!

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3 years ago

a package shaped like a cube has an edge that is 28 cm long. How much space is available to pack inside your box?

Tema [17]

Answer: 21,952 cm³

Explanation:

Volume = 28 x 28 x 28 = 29 152 cm³

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3 years ago

Choose the equation below that represents the line passing through the point (2, -5) with a slope of -3.

mash [69]

The point-slope form: $y-y_0=m(x-x_0)$

$m=-3;\ (2;-5)\to x_0=2;\ y_0=-5$

subtitute

$y-(-5)=-3(x-2)\\\\y+5=-3x+6\ \ \ \ \ |subtract\ 5\ from\ both\ sides\\\\\boxed{y=-3x+1}$

4 0

3 years ago

Calculate the sum of all odd number between 2 and 8​

Calculate the sum of all odd number between 2 and 8