4 years ago

What are the solutions to the system y=x^2+5x-9 y=2x+1

Mathematics

2 answers:

Y_Kistochka [10]4 years ago

8 0

Hello here is a solution :

bogdanovich [222]4 years ago

8 0

Answer:

Step-by-step explanation:

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Which expression is equivalent to 3⁴ . 3-⁹

grigory [225]

Answer:

3^-5 or 1/3^5(b)

Step-by-step explanation:

3⁴•3^-9

When bases are same powers are to be added

So the above expression becomes

3^4+(-9)

3^4-9

3^-5

5 0

4 years ago

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What is the pressure in atmospheres exerted by a 0.500 mole sample of nitrogen gas in a 10.0 L container at 25.0°C?

drek231 [11]

Answer:

1.2218 atm

Step-by-step explanation:

From ideal gas formula,

PV=nRT

Where n= number of moles

V= volume

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= (273 + 25) = 298 K

R= gas constant = 0.082 l atm /K mol.

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P= [nRT] /V

Then substitute the values we have

P= [0.5 x 0.082 x 298] / 10

P= 1.2218 atm

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3 years ago

Whats 1+1 please I really need to ask this for 0 reason other than boredom

natta225 [31]

Answer:2

Step-by-step explanation:

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4 years ago

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One serving of rice has 44.9 grams of carbohydrates how many grams of carbohydrates de 2.5 servings of rice have

Fofino [41]

Answer:

$112.25\ grams\ of\ carbohydrates$

Step-by-step explanation:

we know that

using proportion

$\frac{1}{44.9}\frac{serving\ of\ rice}{grams\ of\ carbohydrates} =\frac{2.5}{x}\frac{serving\ of\ rice}{grams\ of\ carbohydrates} \\ \\x=44.9*2.5\\ \\x=112.25\ grams\ of\ carbohydrates$

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Find the length of the side labeled x. Round intermediate values to the nearest 10th. Use the rounded values to calculate the ne

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Answer:

16.0(?)

Step-by-step explanation:

I’m not really sure if it’s correct. But I’m assume it’s correct.

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