All categories

2 years ago

Brain teaser what is two plus two minus two plus four divided by two?

Mathematics

2 answers:

JulsSmile [24]2 years ago

7 0

Answer:

Step-by-step explanation:

2+2-2+4÷2

we go through

P- parentheses

E- exponents

M- multiplication

D- division

A- addition

S- subtraction

also note that we read it from left to right becaue × is not more important than ÷ and same goes to + and -

First step

2+2-2+(4÷2) --> 2+2-2+2

then

2+2-2+2 --> 4-2+2

then

4-2+2 --> 2+2

finally

2+2=4

quester [9]2 years ago

3 0

Answer:

Step-by-step explanation:

You might be interested in

Given the following winning percentages of the teams in a league (for a single year) compute the within-season standard deviatio

Masja [62]

Answer:

(b) 0.251

Step-by-step explanation:

1. Standard deviation equation:

$SD=\sqrt{\frac{\sum\limits^N_i {(x_{i}-X)^{2} } }{N} }$

Where X is the mean of the data, and N the amount of data. Then, N=5

2. Estimate the Mean:

$X=\frac{0.750+0.750+0.200+0.600+0.200}{5}=\frac{2.5}{5}=0.5\\$

3. Caclulate Standard deviation:

$SD=\sqrt{\frac{{(0.750-0.500)^{2}+(0.750-0.500)^{2}+(0.200-0.500)^{2}+(0.600-0.500)^{2}+(0.200-0.500)^{2} } }{5} }$

$SD=\sqrt{\frac{0.315}{5} }=\sqrt{0.063}\\SD=0.251$

7 0

3 years ago

I need help thanks in advance

sergij07 [2.7K]

Answer:

Step-by-step explanation:

The rule is if 2 chords intersect inside a circle, then the measure of the angle formed is one half the um of the measure of the arcs intercepted by the angle and its vertical angle. In other words, angle TSU = 1/2(arc TU + arc MV):

angle TSU = 1/2(90 + 80) and

angle TSU = 1/2(170) and

angle TSU = 85

6 0

3 years ago

Find the distance between Points C(4, 6) and D(−5, 6) without using a coordinate plane.

balu736 [363]

Answer:

-1, 0

Step-by-step explanation:

i think <33

3 0

3 years ago

What is it multiplying by?<br><br><br>784.5, 78.45, 7.845,0.7845, 0.07845

katrin [286]

Answer:

10,100,1000,-10,-100,-1000

Step-by-step explanation:

3 0

3 years ago

Find the common difference of the arithmetic sequence -3, -9, -15

eduard

Answer:

they are subtracting 6 from each number

6 0

3 years ago