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anygoal [31]
1 year ago
13

What’s the least common multiple of each group of numbers? A. 5 and 6 b. 2 and 9 c. 6 and 8 d. 2, 5, and 6

Mathematics
2 answers:
Lostsunrise [7]1 year ago
8 0

Answer:

A) 30

B) 18

C) 24

D) 30

Step-by-step explanation:

alexira [117]1 year ago
5 0

For this case we have that by definition, the LCM of two or more natural numbers is the smallest natural number that is a common multiple of all of them.

So:

A. 5 and 6

The LCM of 5 and 6 is the smallest positive integer that divides the numbers 5 and 6 without leaving a residue.

multiples:

5: 10,15,20,25,30,35,40,45

6: 12,18,24,30,36

LCM = 30

B. 2 and 9

Multiplos:

2: 4,6,8,10,12,14,16,18

9: 18,27

LCM = 18

C. 6 and 8

6: 12,18,24,30,36

8:16, 24

LCM = 24

D. 2,5 and 6

Multiplos:

2: 4,6,8,10,12,14,16,18 ..., 30

5: 10,15,20,25,30,35,40,45

6: 12,18,24,30,36

LCM = 30

Answer:

a.30

b.18

c.24

d.30

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Y is inversely proportional to x.<br> Complete the table.<br> х<br> 15<br> 6<br> у<br> 5<br> 10
AlexFokin [52]

Answer:

When x = 15, y= 2

When y= 10, x= 3

Step-by-step explanation:

This is a question in inverse proportion. In this proportion, an increase in one quantity would lead to a decrease in the other and vice versa.

We are to complete the table using the relationship between x and y.

Given:

y is inversely proportional to x = y ∝ 1/x

∝ = proportional to

y ∝ 1/x

y = k × 1/x

Where k = constant of proportionality

To understand the relationship between y and x, we need to find the value of k.

y = k × 1/x

From the table,

When x = 6, y = 5

5 = k × 1/6

5 = k/6

k = 6×5 = 30

y = 30 × 1/x

y = 30/x

The above relationship would enable us find the missing parts.

When x = 15, y= ?

y = 30/15

y = 2

When y= 10, x= ?

10 = 30/x

10x = 30

x = 30/10

x= 3

5 0
2 years ago
3.274 x 10^3 as an ordinary number
Alborosie

Answer:

327.4

Step-by-step explanation:

All you have to do to simplify a number written in scientific notation is to move the decimal place to the left (if the number is negative) and to the right (if the number is positive).

4 0
2 years ago
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Which will result in a difference of squares? (negative 7 x + 4)(negative 7 x + 4) (negative 7 x + 4)(4 minus 7 x) (negative 7 x
nevsk [136]

Answer:

(negative 7 x + 4)(negative 7 x minus 4)

Step-by-step explanation:

Consider two real numbers a and b. A difference of squares involving a and b is usually given as;

a^{2}-b^{2}

The difference of the two squares above can be factored to yield;

(a-b)(a+b)

This implies that in order to have the difference of squares we must have a product involving the difference and the sum of the numbers.

The expression;

(negative 7 x + 4)(negative 7 x minus 4) can also be written as ( 4 - 7x) ( -4 - 7x)

( 4 - 7x) ( -4 - 7x) = ( 4 - 7x) (-1( 4 + 7x)) = -1 *( 4 - 7x) ( 4 + 7x)

Expanding the last expression yields;

-1 (16 + 28x -28x - 49x^2) = -1 (16 - 49x^2) = 49x^2 - 16 which is in deed a difference of squares

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2 years ago
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The point (1, 4) lies on a circle that is centered at (1, 1). Which statements are correct? Check all that apply.
Semenov [28]

the circle's radius is 3 units

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Ostrovityanka [42]
I don’t think you wrote it correct but anyway I think the answer to your question is statement number 1
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