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3 years ago

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Mathematics

2 answers:

erastovalidia [21]3 years ago

7 0

Answer:

Step-by-step explanation:

have a wonderful day!!!!

Amanda [17]3 years ago

6 0

Answer:

The LCM of 4 and 7 is 28

Step-by-step explanation:

LCM is the lowest common multiple of two or more numbers.

To find it do that:

List the multiples of each number

Find the first common multiple of them, it will be the LCM

Let us find the lowest common multiple of 4 and 7

→ List the multiples of 4

∵ The multiples of 4 are, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, .......

→ List the multiples of 7

∵ The multiples of 7 are, 7, 14, 21, 28, 35, 42, 49, .........

→ Find the first common multiple of 4 and 7

∵ 28 is the first common multiple of 4 and 7

∴ The lowest common multiple of 4 and 7 is 28

∴ The LCM of 4 and 7 is 28

You might be interested in

andriy [413]

Answer:

a) 1/10

b) 110

Step-by-step explanation:

A) we start by getting the total number of rolls

That would be;

11 + 22 + 7 + 8 + 13 + 19 = 80

The frequency of getting a 4 is 8

The probability that the next roll will be a 4 is;

8/80 = 1/10

b) Firstly, we get the probability of getting a 2

We have this as:

22/80

So for 400 rolls, the number of 2’s will be;

22/80 * 400

= 22 * 5 = 110

8 0

3 years ago

The expression -5+20 factored is

harkovskaia [24]

I assume you meant -5x+20? If so,

-5(x-4) = 0 This is the answer

x = 4

6 0

4 years ago

Read 2 more answers

Two airplanes leave the airport. Plane A departs at a 42° angle from the runway, and plane B departs at a 44° angle from the run

rewona [7]

Answer:

2nd choice

Step-by-step explanation:

Horizontal distance = x

angle = α,

tanα = 15/x, so x = 15/tanα

For A, α = 42°, x = 15/tan42° = 16.66 miles

For B, α = 44°, x = 15/tan44° = 15.53 miles

so the answer is 2nd choice

6 0

2 years ago

Factor the GCF:<br> 24x3 + 8x

disa [49]

Answer:

8x(3x^2 +1)

Step-by-step explanation:

24x^3 + 8x

We can factor out 8x

8x(3x^2 +1)

4 0

3 years ago

Determine the values of the variables in isosceles trapezoid CHLE below.

Alex73 [517]

Answer:

The values of variables x and m are 11 and 17

Step-by-step explanation:

The question has missing details as the diagram of the trapezoid isn't attached.

(See attachment).

Given that trapezoid CHLE is isosceles then the angles at the base area equal (4x)

And

The angles at the top are also equal

8m = 11x + 15

At this point, the four angles in the trapezoid are 8m, 11x + 15, 4x and 4x..

The sum of interior= 360

So,

11x + 15 + 8m + 4x + 4x = 360

Collect like terms

11x + 4x + 4x + 8m = 360 - 15

19x + 8m = 345

Substitute 11x + 15 for 8m

19x + 11x + 15 = 345

30x + 15 = 345

30x = 345 - 15

30x = 330

Divide through by 30

30x/30 = 330/30

x = 11

Recall that 8m = 11x + 15;

8m = 11(11) + 15

8m = 121 + 15

8m = 136

Divide through by 8

8m/8 = 136/8

m = 17

Hence, the values of variables x and m are 11 and 17

7 0

3 years ago