Help! How would I solve this? w+4/w-9? How do I find the values for this?

Plz help me w/these three problems reasonably easy sixth grade math thank you!!!!!

ss7ja [257]

This is simple!
To begin with, arrange all the numbers in order.
#1
5, 5, 20, 20, 25, 30, 35
Mean: add all the numbers together and divide it by how many numbers are there
5+5+20+20+25+30+35=140
there are 7 numbers
Mean: $\frac{140}{7}$ = 20
Median: The middle number, if the set of numbers have an odd number, then the one in between is the median, if there it is an even number, then the mean of the two in-between numbers is the median.
Median: 20
Mode: The most repeated numbers
Mode: 5 and 20
Range: Highest number - lowest number
Range: 35 - 5
30
#2
Order: 44, 48, 48, 49, 59, 61, 63, 68
Mean: 440 (sum of all numbers)
there are 8 numbers in total
$\frac{440}{8}$ = 55
Median: there are 8 numbers so, the mean of the in-between numbers will be the median
49+59=108
2 numbers
$\frac{108}{2}$ = 54
Mode: 48
Range = 68 - 44 = 24

8 0

3 years ago

Given: sin ∅= 4/5 and cos x = -5/13 ; evaluate the following expression. tan( ∅ - x )

Pavlova-9 [17]

By definition of tangent,

tan(θ - x) = sin(θ - x) / cos(θ - x)

Expand the sine and cosine terms using the angle sum identities,

sin(x ± y) = sin(x) cos(y) ± cos(x) sin(y)

cos(x ± y) = cos(x) cos(y) ∓ sin(x) sin(y)

from which we get

tan(θ - x) = (sin(θ) cos(x) - cos(θ) sin(x)) / (cos(θ) cos(x) + sin(θ) sin(x))

Also recall the Pythagorean identity,

cos²(x) + sin²(x) = 1

from which we have two possible values for each of cos(θ) and sin(x):

cos(θ) = ± √(1 - sin²(θ)) = ± 3/5

sin(x) = ± √(1 - cos²(x)) = ± 12/13

Since there are 2 choices each for cos(θ) and sin(x), we'll have 4 possible values of tan(θ - x) :

• cos(θ) = 3/5, sin(x) = 12/13 :

tan(θ - x) = -56/33

• cos(θ) = -3/5, sin(x) = 12/13 :

tan(θ - x) = 16/63

• cos(θ) = 3/5, sin(x) = -12/13 :

tan(θ - x) = -16/63

• cos(θ) = -3/5, sin(x) = -12/13 :

tan(θ - x) = 56/33

7 0

2 years ago

Read 2 more answers

What is the equivalent fractions for 20/50 and 3/11?

yaroslaw [1]

Equivalent fractions for 20/50 => 2/5, 4/10, 6/15,and so on .....
=> 20/50 = 2/5
=> 20/50*2 = 4/10
=> 20/50*3 = 6/15

equivalent fractions for 3/11 => 3/11, 6/22, 9/33, 12/44 and so on ...
=> 3/11* 2 = 6/22
=> 3/11* 3 = 9/33
=> 3/11* 4 = 12/44

Hope it helps !!!

6 0

3 years ago

园 Give a common multiple of 5 and 10 between 1 and 75.

IrinaK [193]

5 10 15 20 25 30 35 40 45 50 55 60 65 70 75

7 0

3 years ago

12x - 5 = 91 degrees

AlekseyPX

Step-by-step explanation:

12x-5=91°

12x=91+5

x =96

12

x=8°

hope it helps.

8 0

3 years ago