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3 years ago

4 consecutive numbers that add up to 8

Mathematics

1 answer:

Digiron [165]3 years ago

8 0

Answer:

The answer top your question is: 1/2, 3/2, 5/2 and 7/2

Step-by-step explanation:

Data

4 consecutive numbers that add up to 8

First number = n

2nd number = n + 1

3rd number = n + 2

4th number = n + 3

Now, add them up n + n + 1 + n + 2 + n + 3 = 8

Simplify like terms

4n + 6 = 8

4n = 8 - 6

4n = 2

n = 2/4 = 1/2

First number = n = 1/2

2nd number = n + 1 = 1/2 + 1 = 3/2

3rd number = n + 2 = 1/2 + 2 = 5/2

4th number = n + 3 = 1/2 + 3 = 7/2

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Given y=x2 + 9x + 20 find the zeroes.

Artyom0805 [142]

Answer:

x=-5 x=-4

Step-by-step explanation:

y=x^2 + 9x + 20

We need to factor the equation

What 2 numbers multiply to 20 and add to 9

4*5 = 20

4+5 =9

y=(x+5) (x+4)

To find the zero's we set the equation equal to zero

0= (x+5) (x+4)

Using the zero product property

x+5 = 0 x+4=0

x=-5 x=-4

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3 years ago

6 ones 453 thousandths + 4 hundredths =

Gre4nikov [31]

Answer:

your answer is 463

Step-by-step explanation:

Hope this help you

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3 years ago

Use a surface integral to find the general formula for the surface area of a cone with height latex: h and base radius latex: a(

BlackZzzverrR [31]

We can parameterize this part of a cone by

$\mathbf s(u,v)=\left\langle u\cos v,u\sin v,\dfrac hau\right\rangle$

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