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Whitepunk [10]
3 years ago
13

2 Select the correct answer. Simplify the following expression.

Mathematics
2 answers:
Jlenok [28]3 years ago
8 0

Answer:

I think the exact form is 1/64

sp2606 [1]3 years ago
5 0

Answer:

The answered would be 1/64 since it's simplified

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Need help parabola and its vertex
AVprozaik [17]
y + 13 = 2(x - 1)^2

use the equation: (y_{2} - y_{1}) = m({x_{2} - x_{1})^2

(-11 + 13) = m(0 - 1)^2

2 = m(1)^2

m = 2

y + 13 = 2(x - 1)^2

substitute y for 0, since x-intercepts occur on the x-axis, or the line y = 0 

0 + 13 = 2(x - 1)^2

13 = 2(x - 1)^2

13 = 2(x^2 - 2x + 1)[tex]\\[tex]13 = 2x^2 - 4x + 2

2x^2 - 4x - 15

use the quadratic equation (can't type it out on brainly, if you don't know, look it up)

x = 1 -  \sqrt{ \frac{13}{2} }, 1 +  \sqrt{ \frac{13}{2} }

The answer is: (1 -  \sqrt{ \frac{13}{2} },0) and (1 +  \sqrt{ \frac{13}{2} },0)
8 0
3 years ago
How do you compute the perimeter and area of a rectangle
erica [24]

Answer:

To find the perimeter- add up all the sides

To find the area- multiply length times width

Step-by-step explanation:

6 0
3 years ago
1+3x=-5+x<br><img src="https://tex.z-dn.net/?f=1%20%2B%203x%20%3D%20%20-%205%20%2Bx" id="TexFormula1" title="1 + 3x = - 5 +x" a
Oliga [24]
Get all your variables on same side and solve x=-2
4 0
3 years ago
brian has reduced his cholesterol level by 6% after his last check up. if his original level was 180,what is his approximate cho
Vitek1552 [10]
His cholesterol level should be 169.20
6 0
3 years ago
A cohort study of smoking and lung cancer was conducted in a small island population. There were a total of 1,000 people in the
Ierofanga [76]

Answer:

A measure of exposure-disease association one could use is the odds ratio (OR)

Step-by-step explanation:

An Odds ratio (OR) is a statistical measure quantifying the level of association between two events such as an exposure and an outcome

The odds ratio gives the probability of outcome where there is a given amount of exposure

We have the table;

\begin{array}{ccc}&Developed \ lung \ cancer& Did \ not \ develop \ lung \ cancer\\Smokers&50&350\\Non-smokers&10&590\end{array}

The odds ratio = (The number of smokers with the lung-cancer)/(The number of non-smokers with lung-cancer) ÷ (The number of smokers smokers without long cancer).(The number of non-smokers without long cancer)

∴ OR = (50/10) ÷ (350/590) = 59/7 = 8.\overline{428571} ≈ 8.4

Therefore, a smoker is approximately 8.4 times more likely to develop lung cancer than a non-smoker.

6 0
3 years ago
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