We can use ratios and the cross-multiply-divide to find this.
The ratio 21:5 is avaliable via the question. We then need to compare that to the ratio x:100, the 100 being the percent and the x being the number of airplane parts.
21/5 = x/100
We can then solve for x to find the number of airplane parts. First we multiply by 100 on both sides to get 2100/5 = x. Therefore x = 420 and there are 420 airplane parts.
Answer:
(f - g)(-4) = 17
Step-by-step explanation:
To get (f - g)(x), you need to subtract f(x) with g(x).
f(x) = 2x² + 2
g(x) = -3x + 5
(f - g)(x) = (2x² + 2) - (-3x + 5)
(f - g)(x) = 2x² + 2 + 3x - 5
(f - g)(x) = 2x² + 3x - 3
Now, plug in -4 to find (f - g)(-4).
(f - g)(x) = 2x² + 3x - 3
(f - g)(-4) = 2(-4)² + 3(-4) - 3
(f - g)(-4) = 2(16) + 3(-4) - 3
(f - g)(4) = 32 - 12 - 3
(f - g)(-4) = 17
Answer:
The value of the test statistic
Step-by-step explanation:
From the question we are told that
The high dropout rate is %
The sample size is
The number of dropouts
The probability of having a dropout in 1000 people
Now setting up Test Hypothesis
Null
Alternative
The Test statistics is mathematically represented as
substituting values
Answer:
I got 38 and 11
Step-by-step explanation:
Answer:
b. distributive property
c. commutative property
e. subtraction
f. division
Step-by-step explanation:
These are the steps you use to solve algebraic equations.