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zmey [24]
2 years ago
14

Factor x^2-3x-28 using the x method

Mathematics
1 answer:
arsen [322]2 years ago
8 0

Answer:

{x}^{2}   - 7x + 4x - 28 \\  = x(x - 7) + 4(x - 7) \\  = (x - 7)(x + 4)

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Solve each of the following systems using the linear combination method. Check your answers
Dvinal [7]
3x+5y=11 answer : 3x+5y-11=0

Step by step explanation:

3x+5y=11
Move the constant to the left

3x+5y-11=11-11
Eliminate the opposite

3x+5y=11

5y+8y
8 0
3 years ago
A population numbers 19,000 organisms initially and grows by 4.8% each year. Suppose P represents population and t represents th
V125BC [204]

Answer:

The exponential model for the population is P(t) = 19000e^{0.048t}

Step-by-step explanation:

The exponential model for the population has the following format:

P(t) = P(0)e^{rt}

In which P(0) is the initial population and r is the growth rate, as a decimal.

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This means that P(0) = 19000, r = 0.048

So

P(t) = P(0)e^{rt}

P(t) = 19000e^{0.048t}

The exponential model for the population is P(t) = 19000e^{0.048t}

8 0
3 years ago
Ramkin is going to flip a fair coin 100 times.
Gelneren [198K]

Answer:

50 times

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Please let me know if you have any more questions. Hope this helps!

3 0
3 years ago
Grade 4c left their school at7:30 am for their trip to the market. They return at 10:45 am how much time did they spend onthe tr
julia-pushkina [17]

Answer:

3hrs 15 minutes

Step-by-step explanation:

10:45

-07:30

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03:15

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3 0
2 years ago
A gardener makes a new circular flower bed. The bed is twelve feet in diameter. Calculate the circumference and the area of the
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3 years ago
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