Multiply first example by 3 and subtract by second example, you will get the following:
3*(5x + 2y) = 3*22 => 3*5x + 3*2y = 66 => 15x + 6y = 66
now subtraction:
(15x + 6y) - (-2x + 6y) = 66 - 3
15x + 6y + 2x - 6y = 63
15x + 2x + 6y - 6y = 63
17x = 63
x = 63/17 ≈ 3.705..... and as it says to round to the nearest tenth our answer would be: x = 3.7
Answer:
f(x) = x(x - 4)(x + 3)
Step-by-step explanation:
given f(x) with zeros x = a and x = b then the corresponding factors are
(x - a) and (x - b)
f(x) is then the product of these factors
Given zeros are x = 4, x = 0, x = - 3 then the factors are
(x - 4) , (x - 0), (x - (- 3)) , that is
(x - 4) , x , (x + 3)
f(x) = x(x - 4)(x + 3)
Answer
0.975 is the probability value
Step-by-step explanation:
We start by getting the z score of 86
z-score = (x - mean)/SD
z-score = (86-98)/6 = -12/6 = -2
So we want to find the probability of z greater than or equal to 2
We shall be using the standard normal distribution table here
We have the answer as;
0.975
Answer: 14
Step-by-step explanation:
Since they are similar, that means their side lengths are proportional.
Therefore,
.
We can plug in the values we know:
Let x be the missing measurement.
![\frac{16}{24} =\frac{x}{21}](https://tex.z-dn.net/?f=%5Cfrac%7B16%7D%7B24%7D%20%3D%5Cfrac%7Bx%7D%7B21%7D)
We can simplify 16/24 to 2/3.
2/3 = x/21.
We can cross multiply:
42 = 3x
Therefore, x = 14
Answer:
squares?
Step-by-step explanation: