Answer:
The answer is C) 4.5x + 40 < 6.5x + 20
Step-by-step explanation:
Answer:
x = 67°
Step-by-step explanation:
All angles inside a triangle add up to 180 so...
180 - 46 = 134
134 ÷ 2 = 67
Answer:
Relative frequency:
The most serious threat to aviation safety is, according to this data, "mechanical failures". It can be improved by more rigorous inspection and better maintenance policies and execution.
Step-by-step explanation:
We have the data for fatal plane crashes. The sum of plane crashes is
We can calculate the relative frequency as:
We can see that the most frequent cause is "mechanical problems", with a relative frequency of 0.45.
Answer:
15
Step-by-step explanation:
cost of 20 mobile set=300
cost of 1 mobile set
<em>=</em><em>cost </em><em>of </em><em>mobile </em><em>set/</em><em>number </em><em>of </em><em>mobile </em><em>set</em>
<em>=</em><em>3</em><em>0</em><em>0</em><em>/</em><em>2</em><em>0</em>
<em>=</em><em>1</em><em>5</em>
Step-by-step explanation:
multiplying expressions.
remember every term of one expression has to be multiplied with every term of the other expression, and the results are added up (while considering their individual signs, of course).
1.
(-3×3 + 2x - 4)(3x - 2)
(-9 + 2x - 4)(3x - 2)
(-13 + 2x)(3x - 2) = -13×3x + -13×-2 + 2x×3x + 2x×-2 =
= -39x + 26 + 6x² - 4x = 6x² - 43x + 26
2.
let's do the other multiplication and compare the result with the result of 1 :
(-13 + 2x)(2x - 3) = -13×2x + -13×-3 + 2x×2x + 2x×-3 =
= -26x + 39 + 4x² - 6x = 4x² - 32x + 39
no, this product is not the same as in 1.
