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barxatty [35]
3 years ago
13

Which expression is a difference?

Mathematics
2 answers:
makkiz [27]3 years ago
7 0

Answer:

B)

Step-by-step explanation:

6 - (4x5)

Lynna [10]3 years ago
5 0
They added -2 + 1000 = 2
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Does the following mapping diagram represent a function?
RUDIKE [14]

Answer:

a

Step-by-step explanation:

3 0
2 years ago
Expand &amp; simplify <br> 5<br> (<br> p<br> +<br> 6<br> )<br> −<br> 5<br> (<br> p<br> −<br> 2<br> )
HACTEHA [7]

Answer: 0p + 40

Step-by-step explanation:

5p + 30 - 5p + 10

0p + 40

8 0
2 years ago
The square root of 216 lies between which two integers?
sleet_krkn [62]

14.6969385 lies between 14 and 15.

I hope it's right! Virtually slap me if it is not.

7 0
2 years ago
Help would be truly appreciated. Write the polynomial in standard form from the given zeroes of lest degree that has rational co
pishuonlain [190]

Answer:

1) The polynomial in standard form is f(x) = x³ - 9·x² + 23·x - 15

2) The polynomial in standard form is f(x) = x³ - (2 - 2·i)·x² + 4·i·x

3) The polynomial in standard form is f(x) = x² + (3·i - 3)·x + 2 - 6·i

4) The polynomial in standard form is f(x) = x² - (5 + √5)·x + 6 + 3·√5

Step-by-step explanation:

Given that that the polynomial is of least degree, we have;

The standard form is the form, f(x) = a·xⁿ + b·xⁿ⁻¹ +...+ c

1) The zeros of the polynomial are x = 5, 3, 1

Which gives the polynomial in factored form as_f(x) = (x - 5)·(x - 3)·(x - 1)

From which we have;

f(x) = (x - 5)·(x - 3)·(x - 1) = (x - 5)·(x² - 4·x + 3) = x³ - 4·x² + 3·x - 5·x² + 20·x - 15

f(x) = x³ - 9·x² + 23·x - 15

The polynomial in standard form is therefore f(x) = x³ - 9·x² + 23·x - 15

2) The zeros of the polynomial are x = 2, 0, 2·i

Which gives the polynomial in factored form as_f(x) = (x - 2)·(x)·(x - 2·i)

From which we have;

f(x) = (x - 2)·x·(x - 2·i) = (x² - 2·x)·(x - 2·i) = x³ - 2·i·x² + 2·x² + 4·ix

The polynomial in standard form is therefore f(x) = x³ - (2 - 2·i)·x² + 4·i·x

3) The zeros of the polynomial are x = 2, 1 - 3·i

Which gives the polynomial in factored form as_f(x) = (x - 2)·(x - 1 - 3·i)

From which we have;

f(x) = (x - 2)·(x - (1 - 3·i)) = x² - x + 3·i·x - 2·x + 2 -6·i = x² + 3·i·x - 3·x + 2 - 6·i

The polynomial in standard form is therefore f(x) = x² + (3·i - 3)·x + 2 - 6·i

4) The zeros of the polynomial are x = 3, 2 + √5

Which gives the polynomial in factored form as_f(x) = (x - 3)·(x - (2 + √5))

From which we have;

f(x) = (x - 3)·(x - (2 + √5)) = x² - 2·x - x·√5 - 3·x + 6 + 3·√5

f(x) = x² - 5·x - x·√5 + 6 + 3·√5 = x² - (5 + √5)·x + 6 + 3·√5

The polynomial in standard form is therefore f(x) = x² - (5 + √5)·x + 6 + 3·√5.

5 0
3 years ago
angel is visiting a cousin 280 miles away from nashville. he’s already driven 70 miles in the first hour. at that speed how many
Tpy6a [65]

Answer:

  3 hours

Step-by-step explanation:

Angel's remaining distance is ...

  280 mi - 70 mi = 210 mi

At 70 miles per hour, it will take ...

  (210 mi)/(70 mi/h) = 3 h

to cover the remaining distance.

_____

The appropriate relationship is ...

  time = distance/speed

4 0
3 years ago
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