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liberstina [14]
3 years ago
5

If f(x)=7x-3 and g(x)=x^2-4x, find (f+g)(x).

Mathematics
1 answer:
mote1985 [20]3 years ago
8 0
(f+g)(x) is equivalent to f(x) + g(x)

So that would be (7x-3) + (x²-4x) = x² + 7x - 4x - 3 = x² + 3x - 3

Hope this helps.
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A tire company finds that the lifespan for one brand of its tires is normally distributed with a mean of 47,500 miles and a stan
Illusion [34]

Answer:

42580 miles

Step-by-step explanation:

Mean = \mu = 47500

\sigma = 3000

The manufacturer does not want to replace more than 5% of the tires

P(X\leq x)=5\%

P(\frac{x-\mu}{\sigma}\leq \frac{x-47500}{3000})=0.05

By using normal table values :

\frac{x-47500}{3000}=-1.64

x=(-1.64 \times 3000)+47500

x=42580

Hence the approximate number of miles for the warranty is 42580 miles

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4 years ago
3. Determine if the equation represents y as a function of x.<br> 9x + 3y = 12
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The answers in the picture download photomath scam your problem and gives u answer

5 0
3 years ago
A rectangle is 5 times as longer than it is wide. Its width is three-sixteenths of its perimeter. Find its perimeter.
VikaD [51]
Length = 5x
width = x
area = 125
A = L*W
125 = (5x)(x)
125 = 5x^2
125/5 = x^2
25 = x^2
sqrt{25} = sqrt{x^2}
5 = x
The width is 5 feet.
The length is 5 times 5 feet or 25 feet.
To find the perimeter, we use P = 2L + 2W.
P = 2(25) + 2(5)
P = 50 + 10
P = 60 feet.
Done!
4 0
3 years ago
The forest was 600 acres in size 2/5 had been ravaged by bushfire how many acres were affected by bushfire?
natima [27]
2/5 of 600 would be 240 acres!
3 0
4 years ago
Read 2 more answers
Which statement is true about the discontinuities of the function f(x)?
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In order to find out where your holes and asymptotes are is to factor both the top and the bottom of that rational function.  The numerator factors to (x+2)(x-2) and the denominator factors to x(x+1)(x-2).  So since there is an (x-2) in both the numerator and denominator, that is called a removable discontinuity which we also know as a hole.  The other factors in the denominator, the x and the (x+1) are vertical asymptotes, or values of x that make the rational function undefined (you're NEVER allowed to have a 0 in the denominator of a fraction!).  So your correct choice is c.  The way you find the y coordinate for the hole is to plug in 2 for x and solve it for y.  No biggie.
3 0
3 years ago
Read 2 more answers
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