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leonid [27]
3 years ago
14

The computer repairman is given 8 computers to fix. He knows that among them are 4 bad video cards and 3 failed hard drives. Wha

t is the probability that the first computer he tries has a bad video card but a healthy hard drive?
Mathematics
1 answer:
BaLLatris [955]3 years ago
4 0
The probability of the first computer having a bad video card is 37 percent counting all eight computers. If we only count the seven that are discussed then the percentage would be 43 
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death valley has an elevation of -282 feet to relative to sea level.Explain how to use absolute value to describe the elevation
Vanyuwa [196]
Absolute value is the distance from a value to zero. In this case, it'd be written as   | -282 |. If x = | -282 |, then x = 282
5 0
3 years ago
the sum of the measures of the interior angels of a convex polygon is 3240 classify the polygon by the number of sides
Ipatiy [6.2K]

Answer:

20-gon

Step-by-step explanation:

First we start with the formula  to find what the sum of angles will be if we know the number of sides.  


S=(n-2)*180 where S is the sum of angles and n is the number of sides.


Normally you'd plug in n to find S, but you can do the opposite too.


3240=(n-2)*180


Let me know if you need help working it from here.  

5 0
3 years ago
Evaluate the expression for the given value of the variable(s). 5a + 5b; a = -6, b = -5
Vika [28.1K]
Your answer is A. You literally plug in the numbers for a and b to solve for the equation.

4 0
3 years ago
In the triangle shown we can find the angle θ as follows calculator
Xelga [282]
Given a right triangle with hypothenus of measure 34, the side opposite the angle θ of measure 30, and the side adjacent the angle theta of measure 16.

\sin\theta= \frac{opposite}{hypothenuse} = \frac{30}{34} = \frac{15}{17}  \\  \\ \Rightarrow \theta=\sin^{-1}\left( \frac{15}{17} \right) \\  \\  \\ \cos\theta= \frac{adjacent}{hypothenuse} = \frac{16}{34} = \frac{8}{17}  \\  \\ \Rightarrow \theta=\cos^{-1}\left( \frac{8}{17} \right) \\  \\  \\ \tan\theta= \frac{opposite}{adjacent} = \frac{30}{16} = \frac{15}{8}  \\  \\ \Rightarrow \theta=\cos^{-1}\left( \frac{15}{8} \right)
3 0
3 years ago
How do you do this?<br> Because i don't know how to do it :&gt;
Sindrei [870]

Answer:

£ 7.95

Step-by-step explanation:

Let the total money = £ x

Money spend on drinks and cake = 1.45 + 1.20 = £ 2.65

Money left with her = (2/3) of x

So, money spend = (1/3) of x

\dfrac{1}{3}*x= 2.65\\\\\\x=2.65*3\\\\

x = £ 7.95

7 0
2 years ago
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