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3 years ago

What are the first four numbers in pi written backwards?

Mathematics

2 answers:

Alex_Xolod [135]3 years ago

7 0

$\pi$ =3.1415

sdas [7]3 years ago

6 0

Answer:the first 4 numbers back words in pi are

141.3

Step-by-step explanation:

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What is a=1/4 b if b is the subject?

Anestetic [448]

Answer:

b = 4a

Step-by-step explanation:

Given

a = $\frac{1}{4}$ b

Multiply both sides by 4 to clear the fraction

4a = b

7 0

4 years ago

The tree in your friend's yard casts a shadow that is 27 feet long. Your friend is 5 feet tall and casts a shadow that is 4.5 fe

Wittaler [7]

Set the equation up as a proportion, where x = the height of the tree in feet
27/x = 4.5/5
cross multiply
(4.5)(x) = (27)(5)
(4.5)(x) = 135
divide the entire equation by 4.5 to isolate x
135/4.5 = 30
x = 30
the tree is 30 ft tall

8 0

3 years ago

Four more than the quotient of a number and 9 equals 2<br><br> Translate it to an equation

Georgia [21]

4(x÷9)=2

4 is multiplied to the (x÷9) to get your answer of 2

8 0

3 years ago

Rewrite 4n^2+2n as a factorial.

Shkiper50 [21]

Answer:

4n²+2n as a factorial is given as:

$= (2n+1)!/(2n-1)!$

Step-by-step explanation:

We are given an expression which has to be converted into factorial form.

The expression is as follows:

$4n^{2} + 2n\\ = 2n(2n+1)\\ = (2n+1)2n\\$

Now we know that 2n+1 and 2n differs by '1' and the next smaller term is '2n-1'.

Hence, multiplying and dividing by '(2n-1)!'; we get:

$= ((2n+1)(2n)(2n-1)!)/(2n-1)!$

we know that x(x-1)(x-2)! = x!, so:

$= (2n+1)!/(2n-1)!$

4 0

3 years ago

A graph is shown below:

pshichka [43]

If one of the points is (0,36), then that shows that, that is the number where the line crosses the y-axis, so now all you have to do is plug in 36 to b in the y=mx+b formula. So the answer is B

6 0

3 years ago