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sergeinik [125]
3 years ago
8

Find f(x)=x-1find f(4)​

Mathematics
1 answer:
Step2247 [10]3 years ago
8 0

Answer:

f(4) = 3

Step-by-step explanation:

f(4) = 4-1 = 3

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I need help with this question!!!
USPshnik [31]

Answer: 5x - 2

Step-by-step explanation:

So area is length*width, we have the area and length which is 5x^2 + 43x - 18 and x + 9. So we need to divide. First the x, what times x is 5x^2? 5x, x*x is x squared. Then we need to apply the 5x to 9. 5x*9 is 45x, and we can’t do anything to the 18 because 18/5 is a decimal. After that we subtract the new area with the old one. 5x^2 + 43x - 18 minus 5x^2 + 45x which is -2x - 18. Now we divide the -18 with 9 which is -2. Remember the 5x we had from using the x? We put that and -2 together which is 5x-2, and that’s your width. Hope this helped!

7 0
2 years ago
Help please ! I dont understand this question ​
EastWind [94]

Answer:

x = 4

Step-by-step explanation:

all angles in triangle add to 180

90+70=160

180-160=20

20÷5=4

6 0
3 years ago
To net an owner $900000 after paying a 6% commission, the list price would be
ch4aika [34]
The list price after commission would be $954,000.
6 0
3 years ago
Cam divided x4 - 6x2 + 2x - 7 by the factor 2 - 5 using synthetic division. His work is shown.
a_sh-v [17]

Answer: Cam did not use a zero place holder for the x^3 term

Step-by-step explanation:

6 0
3 years ago
2 Points
myrzilka [38]

Answer:

B

Step-by-step explanation:

First find the circumference of the circle with radius of 9 inches:

C=2\pi r=2\pi \cdot 9=18\pi \ inches

The full angle has 360°, so, to find the length of the arc DE, you can write:

360^{\circ}\ - \ 18\pi \\ \\145^{\circ}\ - \ x

which yields a proportion:

\dfrac{360}{145}=\dfrac{18\pi}{x}\\ \\360x=145\cdot 18\pi\\ \\x=\dfrac{145\cdot 18\pi }{360}=\dfrac{145\pi}{20}=7.25\pi\approx 22.8\ inches

6 0
3 years ago
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