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3 years ago

What’s the answer but you also have to simplify

Mathematics

1 answer:

Jlenok [28]3 years ago

6 0

Answer:

The answer is 9x² + 3x - 2.

Step-by-step explanation:

1) Collect like terms.

$(7x^{2} + {2x}^{2} ) + ( - 2x + 5x) + (8 - 10)$

2) Simplify.

${9x}^{2} + 3x - 2$

Therefor, the answer is 9x² + 3x - 2.

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James estimated the total cost of groceries to be $50. The actual cost is$65. What is the percent error. Round to nearest whole

vampirchik [111]

Answer:

Step-by-step explanation:

15%

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3 years ago

A common inhabitant of human intestines is the bacterium Escherichia coli. A cell of this bacterium in a nutrient-broth medium d

qwelly [4]

Answer:

Step-by-step explanation:

Given that,

Cells are divided into two cell every 20mins, this implies that the half-life is 20mins

Initial population growth is 60cells

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Population growth is modeled as

P(t) = Po•exp(rt)

Where,

Po is the initial growth at t= 0

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Cross multiply

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7 0

3 years ago

What is the value of X

ASHA 777 [7]

The answer is 21, 21 is the value of x

6 0

3 years ago

-3(n+5)=-21what is ghe answer

charle [14.2K]

-3n-15=-21
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3 years ago

Please help me with number 9, also what method you used to get the equation

Sholpan [36]

The Method is that you add 1 block horizontally to the 2nd row of the figure every time you make a new one.

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3 years ago