HELP PLEASE!! Can someone please check if my answer is right??!!

Mathematics

1 answer:

babymother [125]3 years ago

5 0

Answer:

Did you write absolute value of x -2?

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A year has 365 days, and a day has 24 hours. If an hour has 60 minutes and a minute has 60 seconds, how many seconds are there i

motikmotik

Ok, so we need to take 60 x 60. That gives us 3600, which is the amount of seconds in 60 minutes. Then we need to take 3600 x 24, to figure out the number of seconds in 24 hours (1 full day). That gives us 86,400. Finally, we take 86400 x 365, to determine how many seconds are in 1 full year (365 days). That gives us the answer of <span>31536000. Hope this helps!</span>

7 0

3 years ago

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When the car moves forward by 180cm , each wheel does one full turn . What is the diameter of the wheels to the nearest cm?

Sav [38]

Since 180cm is one full turn you divide it by pie which is 3.14

=180/3.14

=180/3 (Rounded down)

=60

3 0

3 years ago

Please help me solve this problem

sergiy2304 [10]

Answer:

-2/3x+6

Step-by-step explanation:

6 0

3 years ago

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Y= 2.5x+ 5.8 when x = 0.6 pls find the function

adoni [48]

You’d plug in the 0.6 for x. so you’d multiple 0.6 times 2.5 then you’d get 1.5 then you’d add 1.5 plus 5.8 and get 7.3

6 0

2 years ago

The polynomial function y = x3 -3x2 + 16x - 48 has only one non-repeated x-intercept. What do you know about the complex zeros o

earnstyle [38]

• First way to solve:
We'll manipulate the expression of the equation:

$y=x^3-3x^2+16x-48\\\\ y=x^2(x-3)+16(x-3)\\\\ y=(x-3)(x^2+16)$

If we have y=0:

$x-3=0~~~or~~~x^2+16=0\\\\ x=3~~~or~~~x^2=-16\\\\ x=3~~~or~~~x=\pm\sqrt{-16}\\\\ x=3~~~or~~~x=\pm4i$

Then, the function has one real zero (x=3) and two imaginary zeros (4i and -4i).

Answer: B

• Second way to solve:

The degree of the function is 3. So, the function has 3 complex zeros.

Since the coefficients of the function are reals, the imaginary roots are in a even number (a imaginary number and its conjugated)

The function "has only one non-repeated x-intercept", then there is only one real zero.

The number of zeros is 3 and there is 1 real zero. So, there are 2 imaginary zeros.

Answer: B.

3 0

3 years ago