Answer:
The number of original students desk were there before the purchase is 980 .
Step-by-step explanation:
Given as :
The total number of students and teachers new desks to be purchased = 295
The number of teacher's new desk to be purchased = 50
So , The number of student's new desk to be purchased = 295 - 50 = 245
The number of student's new desk to be replaced this year = 
of the original students desk
Let The number of original students desk were there before the purchase = x
Or, According to question
of x = 245
Or, x = 245 × 4
∴ x = 980
Hence The number of original students desk were there before the purchase is 980 . Answer
So for example 50 65 68 72 74 78 80 82 83 84 90 91 92 92 92 92 93 94 95 97 98 98 99 99 100 100.
if we use that we could make this.
Stem Leaf
5 0
6 5 8
7 2 4 8
8 0 2 3 4
9 0 1 2 2 2 2 3 4 5 7 8 8 9 9
10 0 0
16² = 18² + 19² - 2(18)(19)cos(z)
256 = 324 + 361 - (684)cos(z)
256 = 685 - (684)cos(z)
-429 = -684cos(z)
cos(z) = -429/-684
z = cos⁻¹ (0.627)
z = cos⁻¹ (cos 51) [ Cos 51 = 0.627 ]
z = 51
In short, Your Answer would be: 51
Hope this helps!
Answer:
12/20
Step-by-step explanation:
John scored =12 points
His tries =20 tries
Probability = number of favourable outcomes / no. of all possible outcomes
Probability = 12/20
=3/5
***MARK ME AS BRAINLIEST***
Answer:
1/2
Step-by-step explanation:
substitute -2 for x.
any number to negative power must be flipped. 2^-2 = 1/(2^2) = 1/4
(2)(2^-2) = (2)(1/4) = 2/4 = 1/2
