Answer:
A = -10
Step-by-step explanation:
x^2 + 10x + 24 = 0
To find the roots, we need to factor the equation.
What 2 numbers multiply to 24 and add to 10
6*4 = 24
6+4 = 10
(x+6) (x+4)=0
Using the zero product property
x+6 = 0 x+4 = 0
x = -6 x = -4
We want the sum when the roots are added
-6+ -4 = -10
Its 3.8 because if you add 5.9 and 10.3 is 16.2, and if you subtract it by 20, it should equal 3.8.
The frequency of the data sets is defined as the number of times the data is repeated in the given dataset. The frequency of the given data is calculated in the table below.
<h3>What is the frequency of the data sets?</h3>
The frequency of the data sets is defined as the number of times the data is repeated in the given dataset.
Height (cm) Frequency
146 -- 2
147 -- 1
148 -- 1
149 -- 1
150 -- 2
151 -- 1
152 -- 6
153 -- 2
154 -- 3
155 -- 1
As we can see that the height of 146 cm is repeated two times so its frequency is 2. From this concept, all the frequencies are calculated above.
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The fraction 78/10,000 as a decimal would be 0.0078.