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Aleks [24]
2 years ago
11

Convert the following equation into standard form. 2y = 4x – 9 - [?]x+[ ]y = -9

Mathematics
1 answer:
Tresset [83]2 years ago
4 0

Answer: 2x - 2y = 9

here you go

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Cindys grandmother is five times her age. Find each of their ages if the sum of their ages is 90
yan [13]

Answer:

cindy=15 grandmother=75

Step-by-step explanation:

90 divide 6 equal to 15

6 0
3 years ago
What is a cubic polynomial function in standard form with zeros 1,1,and -3?
Mekhanik [1.2K]

Answer:

f(x) = x³ + x² - 5x + 3

Step-by-step explanation:

The cubic polynomial has zeros at 1, 1, - 3.

Therefore, x = 1, 1, - 3 are the roots of the polynomial and hence, (x - 1), (x - 1) and (x + 3) will be factors of the cubic polynomial.

Hence, we can write the polynomial as a function of x as

f(x) = (x - 1)(x - 1)(x + 3)

⇒ f(x) = (x² - 2x + 1)(x + 3)

⇒ f(x) = x³ - 2x² + 3x² + x - 6x + 3

⇒ f(x) = x³ + x² - 5x + 3

So, this is the cubic polynomial function in standard form. (Answer)

8 0
3 years ago
A geologist has two rocks on a scale that weighs 2 1/2 pounds together rock A was 1/7 of the total weight. How much did rock A w
jarptica [38.1K]
5/14 is the answer. I'll do my best bud
Answer↑

Steps↓
Convert 2 1/2 to an improper fraction:
2 + 2+ 1 over 2

Once you add the numbers, that will be 5/2.

Now, multiply that with 1/7:
5/2 • 1/7

Your answer will be 5/14

Therefore, Rock A weighs 5/14 pounds
7 0
3 years ago
A gram weighs less than an ounce.
12345 [234]
1 ounce weighs more than a gram
4 0
3 years ago
.............I need help thnx
kari74 [83]

The answer is A

hope you found this usefull

3 0
3 years ago
Read 2 more answers
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