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gogolik [260]
3 years ago
7

Simplify completely 12 times x to the third power minus 4 times x to the 2nd power plus 8 times x all over negative 2 times x.

Mathematics
1 answer:
Alenkinab [10]3 years ago
5 0
The answer is: -6x^2+2x-4
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The population of new york city in 2013 was about 8,406,000 people which number best appoximates the population as a single digi
dsp73

Answer:

8 * 10^6

Step-by-step explanation:

The question is asking us to represent the value 8,406,000 in standard. The standard form of an expression is expressed as;

A * 10^n

A is any integer between 1 and 10

n is any integer.

Given the value 8,406,000

8,406,000.

We are going to move the decimal point at the end to first digit value. This point will be shifted 6 times to have;

8,406,000 = 8.6 * 10^6 (Note that n is positive since the value given is greater than 1)

Since we are to express as a single digit times a power of ten, the required answer will be 8 * 10^6

4 0
3 years ago
The zeroes of the polynomial f(x) = x^2+x+3/4 are​
matrenka [14]

Step-by-step explanation:

f(x) = x² + x + 3/4

in general, such a quadratic function is defined as

f(x) = a×x² + b×x + c

the solution for finding the values of x where a quadratic function value is 0 (there are as many solutions as the highest exponent of x, so 2 here in our case)

x = (-b ± sqrt(b² - 4ac))/(2a)

in our case

a = 1

b = 1

c = 3/4

x = (-1 ± sqrt(1² - 4×1×3/4))/(2×1) =

= (-1 ± sqrt(1 - 3))/2 = (-1 ± sqrt(-2))/2 =

= (-1 ± sqrt(2)i)/2

x1 = (-1 + sqrt(2)i) / 2

x2 = (-1 - sqrt(2)i) / 2

remember, i = sqrt(-1)

f(x) has no 0 results for x = real numbers.

for the solution we need to use imaginary numbers.

6 0
3 years ago
Read 2 more answers
Jose and Jenna competed in a bike race. After 30 minutes. Jose had finished 2/3 of the race, and Jenna had finished 7/12 of the
Zolol [24]

Answer: Jose


Step-by-step explanation: Because 2/3 is the same as 8/12


4 0
3 years ago
Square the binomial below:<br> (x– 4)
likoan [24]

Answer:

x^2-8x+16

Step-by-step explanation:

(x-4)^2

x^2-4x-4x+16

x^2-8x+16

3 0
3 years ago
If h(x)=1/2x - 8, find h(4).​
patriot [66]

Answer:

h(4) = 1/2 (4) - 8 = 2 - 8 = -6

Step-by-step explanation:

5 0
4 years ago
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