Three lights go on together first changes every 5 sec second every 6sec third every 8 sec when is the next time they go on together

Answers

Answer 1

Answer: In order to calculate, you need to find their LCM
LCM of 5,6 and 8 is equal to 120

So, That time will be 120 sec = 2 min.
In short, Your Final Answer would be 2 min.

Hope this helps!

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What is sin 7pie/4the answer does not have pie in it and it is not a decimal
Find the result when 20 is increased by 95%.
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Bill and Lisa are surveying their classmates about their summer reading. Their questions are given below:Bill: How many books were recommended by the book reading club this month? Lisa: How many books did you read from the recommended list?Who wrote a statistical question and why?A.Lisa, because there can be only one answer to the questionB.Bill, because there can be many answers to the questionC.Lisa, because there will be variability in the responses collectedD.Bill, because every student will give the same answer

Does the word each mean multiply

Answers

no, each does not mean to multiply, but it also depends on the question

Simplify the rational expression. State any restrictions on the variablen^4-10n^2+24/ n^4-9n^2+18

Answers

Answer:

The simplified form is $=((n-2)(n+2))/((n-\sqrt3)(n+\sqrt3))$

The variable n can not be equals to $\pm\sqrt3$ as for these value denominator equals to zero which becomes an indeterminate form.

Step-by-step explanation:

we have to simplify the rational expression and state the restrictions on the variable.

$(n^4-10n^2+24)/(n^4-9n^2+18)$

We can now see that both the numerator and denominator are quadratic trinomials in $n^2.\$

We split the middle terms as follows;

$(n^4-10n^2+24)/(n^4-9n^2+18)=(n^4-6n^2-4n^2+24)/(n^4-3n^2-6n^2+18)$

$=(n^2(n^2-6)-4(n^2-6))/(n^2(n^2-3)-6(n^2-3))$

$=((n^2-4)(n^2-6))/((n^2-6)(n^2-3))$

$=((n-2)(n+2))/((n-\sqrt3)(n+\sqrt3))$

which is the simplified form of given expression.

The variable n can not be equals to $\pm\sqrt3$ as for these value denominator equals to zero which becomes an indeterminate form.

The answer to the question is n^2-4/n^2-3 n ≠±√6±√3

How do you find midpoint for geometry

Answers

Use this formula (x1+x2 over 2, y1+y2 over 2)

With regard to mathematics, what is an accepted statement of fact that is used to prove other statements?A)axiom
B)theroum
C)definition
D)undefined term

Answers

Answer – A. (Axiom)
With regard to mathematics, the accepted statement of fact that is used to prove other statements is an axiom. An axiom refers to any mathematical statement that functions as a starting point from which other mathematical statements are logically derived.

Answer:

With regard to mathematics, an axiom is an accepted statement of fact that is used to prove other statements.

Step-by-step explanation:

As we know that an axiom - normally called postulate - is a statement which is considered to be true in order to serve as an initial point in order to establish further reasoning, from which we may be able to logically drive the other mathematical statements.

Therefore, with regard to mathematics, an axiom is an accepted statement of fact that is used to prove other statements.

A square brick is 11 inches on each side. What is the area of one face of the break?

Answers

All sides of a square are the same so if the length of one is is 11 inches, then all of the sides are 11 inches.
To work out the area of a square you multiply the length and the width.
In this case the sum would be: 11 x 11
The answer to that is 121.
So overall, the answer would be 121 inches.

If a square had a perimeter of 78.4. What is the length of each side

Answers

We know that all the sides of a square is Equal.
And we also know that a square has 4 sides.
So we take the measurement of the perimeter, which is 78.4 and divide it by 4, which is the number of sides.
to find the length of each side= $(78.4)/(4)$
= 19.6

In conclusion 19.6 units is the length of each side.
Note: if the unit of measurement is given(for e.g: in,m,cm...), we have to include it.
Quick Check: 19.6+19.6+19.6+19.6=78.4

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See Attached picture.

In sunlight, a vertical stick 7 ft tall casts a shadow 3 ft long. At the same time a nearby tree casts a shadow 11 ft long. How tall is the tree? Round to the nearest tenth.