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Lilit [14]
3 years ago
6

Solve for x by factoring X2-2x=35

Mathematics
2 answers:
valkas [14]3 years ago
7 0
By factoring, x equals both -5 and 7.
____ [38]3 years ago
5 0
Hey Luke65!

To solve this quadratic equation, we need to factor.  We can brake the x²-2x-35=0 into two factors:
x2-2x-35=0
(x-7)(x+5)=0 

Then we set each factor equal to zero and solve for x:
(x-7)=0                  (x+5)=0 
 x=7                        x=-5 

So the answer is x=7 and x=-5 ~Nesabug
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Explain why the formula for sample variance is different from the formula for population variance. Why is it inappropriate to us
Aliun [14]

Step-by-step explanation:

The difference in the formula of population and sample variance can be explained as:

Population variance is said to be the value of variance that is calculated from population data, whereas sample variance refers to the variance calculated from sample data. This is the reason why value of denominator in the formula for variance in case of sample data is ‘n-1’, while it is ‘n’ for population data. Hence, the result of both variance and standard deviation derived from sample data is larger than those found out from population data.

3 0
2 years ago
$640,3%,2 years?!?! Plz explain!!
mrs_skeptik [129]
I am pretty sure it is talking about interest and $640 is what you start with, with a 3% interest for 2 years
5 0
3 years ago
3n^2=6-17n I need Vertex form please.
nasty-shy [4]

Answer:

3( n + \frac{17}{6} )² - \frac{361}{12} = 0

Step-by-step explanation:

3n² = 6 - 17n ⇔ 3n² + 17n - 6 = 0

3( n² + 2 × \frac{17}{6} n + ( \frac{17}{6} )² - ( \frac{17}{6} )² - 2 ) = 0

3( n + \frac{17}{6} )² - 3 × \frac{289}{36} - 6 = 0

3( n + \frac{17}{6} )² - \frac{361}{12} = 0

8 0
2 years ago
3. Look at the map. Explain why Elm Street and Birch Street are not perpendicular.
Temka [501]

Answer:

A. The slope of Birch Street is 0. To be perpendicular to Elm, Birch would have to have a slope of negative 4/7.

Step-by-step explanation:

I had this same question on Gradpoint and got it correct.

4 0
2 years ago
I don't understand :/
makkiz [27]

Answer:

The frequency is relatable

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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