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liberstina [14]
3 years ago
7

Simplify: x(x-2)-3x(2x-1)

Mathematics
2 answers:
n200080 [17]3 years ago
6 0

Answer:

x^2-2x-6x^2+3x

x^2+x-6x^2

<em>-5x^2+x</em>

julsineya [31]3 years ago
4 0

Answer:

-5x^2 +x

Step-by-step explanation:

x(x-2)-3x(2x-1)

Distribute

x^2 -2x -6x^2 +3x

Combine like terms

-5x^2 +x

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How many gallons are in 161.25 sq ft
nataly862011 [7]
There are none. "Square foot" is a unit of area, not volume. 
Square feet are flat, and can't hold water.

If you meant to ask about 161.25 CUBIC feet, I can help you there:

(161.25 ft³) x (1,728 in³/ft³) x (1 gallon/231 in³) = <u>1,206.234 gallons</u> (rounded)
8 0
3 years ago
Read 2 more answers
The per capita growth rate of many species varies temporally for a variety of reasons, including seasonality and habitat destruc
Veronika [31]

Answer:

n(t)=n_0e^{(1-e^{-t }-t)}

Step-by-step explanation:

If n(t) represents the population size at time t, where n is measured in individuals and t is measured in years.

\frac{dn}{dt}=n(e^{-t }-1), n(0)=n_o

\frac{dn}{n}=(e^{-t }-1)dt

Taking the integral of both sides

\int\frac{dn}{n}=\int(e^{-t }-1)dt\\\int\frac{dn}{n}= \int e^{-t }dt-\int1dt

ln |n| = -e^{-t }-t+C

Where C is integration constant

Taking the exponential of both sides

n=e^{(-e^{-t }-t+C)}

n=e^{(-e^{-t }-t)}e^C\\n=Ke^{(-e^{-t }-t)} whee the exponential of a constant is a constant K.

When t=0, n(0)=n_o

n_0=Ke^{-1

Therefore:

n=n_0e^{1}e^{(-e^{-t }-t)}

n(t)=n_0e^{(1-e^{-t }-t)}

7 0
3 years ago
The number of bagels and coffee sold by a bagel shop yesterday can be modeled using the equation b+c=84. Their sales for the sam
Yakvenalex [24]

Answer:

There were 61 bagels and 23 coffee sold

Step-by-step explanation:

Let us solve the question

∵ The number of bagels and coffee sold by a bagel shop yesterday

   can be modeled using the equation b + c = 84

∴ b + c = 84 ⇒ (1)

∵ Their sales for the same day can be modeled using the equation

   2b + c = 145

∴ 2b + c = 145 ⇒ (2)

Let us solve the system of equations using substitution

→ Subtract the two sides of equation (1) by b to find c in terms of b

∵ b - b + c = 84 - b

∴ c = 84 - b ⇒ (3)

→ Substitute c in equation (2) by equation (3)

∵ 2b + 84 - b = 145

→ Add the like terms on the left side

∴ (2b - b) + 84 = 145

∴ b + 84 = 145

→ Subtract 84 from both sides

∵ b + 84 - 84 = 145 - 84

∴ b = 61

→ Substitute the value of b in equation (3) to find c

∵ c = 84 - 61

∴ c = 23

∴ There were 61 bagels and 23 coffee sold.

3 0
3 years ago
Can anyone please help me with this math question?
OLga [1]

To translate a point according to some vector, you simply have to add the coordinates of the vector to those of the points.

So, the effect of the translation is

P=(-4, 9) \mapsto (-4+3, 9-1) = (-1, 8)

5 0
3 years ago
/fxa-pqxu-hzi. come here <br>​
aleksklad [387]
What if I don’t wanna? What then?
5 0
3 years ago
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