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2 years ago

The sum of consecutive odd numbers is 69 what is the third number in this sequence?

1 answer:

5 0

You haven't actually told us HOW MANY consecutive odd numbers.

If there are three (3) of them, then they are 21, 23, and 25,
and the third one is 25.

Oh ! I think there MUST be three of them. That's the only way
they can all be whole numbers.

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yaroslaw [1]

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2 years ago

Find the side lengths the cube X

s344n2d4d5 [400]

Answer:

x = 6

Step-by-step explanation:

The volume (V) of the triangular prism is calculated as

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A = $\frac{1}{2}$ bh = 0.5 × 9 × 4 = 18 cm² , then

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The volume of a cube is

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s³ = x³ = 216 ( take the cube root of both sides )

x = $\sqrt[3]{216}$ = 6

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2 years ago

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2 years ago

The sum of three consecutive integers is 63. What is the lowest of the three integers?

sveta [45]

One number be x
x+(x+1)+(x+2)=63
x+x+1+x+2=63
3x+3=63
3x=63-3
3x=60
x=60:3
x=20
smallest number = x=20
middle <span>number = x+1= 20+1=21
</span>largest<span><span><span> number = x+2</span> =20+2= 22</span>
</span>

3 0

3 years ago

What is the product mentally of (ab + 3)(ab - 3)

AleksAgata [21]

Answer:

ab² - 9

Step-by-step explanation:

Given in the question an expression

(ab + 3)(ab - 3)

To product mentally we will use polynomial identity called

Difference of squares

here a = ab

b = 3

(ab + 3)(ab - 3) = ab² - 3² = ab² - 9

3 0

2 years ago

Read 2 more answers