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katovenus [111]
1 year ago
15

Which of the following is a zero of the function f(x) = x3 - x2 - 21x + 45.

Mathematics
1 answer:
marin [14]1 year ago
5 0
The zeros are 3 and -5. Hope this helps!
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Sam has some red and yellow cubes. She has 20 cubes in total. She has 8 more yellow cubes than red ones. How many red cubes does
Radda [10]

Answer:

12

Step-by-step explanation:

because if she has 8 more red cubes that yellow than that would mean it would become 12

6 0
1 year ago
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The width of a rectangle is the length minus 2 units. The area of the rectangle is 35 units. What is the width, in units, of the
Andrews [41]

Answer: width = 5 units

Step-by-step explanation:

Let L represent the length of the rectangle.

The width of a rectangle is the length minus 2 units. It means that the width of the rectangle is (L - 2) units.

The formula for determining the area of a rectangle is expressed as

Area = length × width

The area of the rectangle is 35 units. It means that

L(L - 2) = 35

L² - 2L = 35

L² - 2L - 35 = 0

L² + 5L - 7L - 35 = 0

L(L + 5) - 7(L + 5) = 0

L - 7 = 0 or L + 5 = 0

L = 7 or L = - 5

Since the length cannot be negative, then

L = 7 units

Width = 7 - 2 = 5 units

6 0
2 years ago
an artist is arranging tiles in rows to decorate a wall. each new row has 2 fewer tiles than the row below it. if the first row
valentinak56 [21]

we know that

In an Arithmetic Sequence the difference between one term and the next is a constant

This problem is an Arithmetic Sequence

where

the first term is 23

and

the common difference is -2

In general we can write an Arithmetic Sequence as a rule

an=a1+d*(n-1)

where

a1 is the first term

d is the common difference

so

a1=23\\\\  d=-2

<u>Find the term a7</u>

an=a1+d*(n-1)\\ \\  a7=23+(-2)*[7-1]\\ \\\\ a7=23-12\\ \\\\    a7=11

therefore

<u>the answer is</u>

11\ tiles


7 0
1 year ago
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For the first year of his car insurance policy, Tom pays $77 per month. Tom's payments are reduced to $65 per month in the secon
Tcecarenko [31]
77/65=1.18
round 1.18 to 1.2
6 0
1 year ago
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Find the square root of 403225 by long division method.
Juli2301 [7.4K]

Answer:

635 is the answer hope this help please give me Brainliest anwer

Step-by-step explanation:

5 0
1 year ago
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