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Tema [17]
3 years ago
10

Factor the quadratic expression completely.-8x^2 -15x + 2 =​

Mathematics
1 answer:
Westkost [7]3 years ago
7 0

Answer:

Step 1: −8x2−15x+2

Step 2: (−8x+1)(x+2)

Step 3: Say thank you

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The spread of data set X is greater than the spread of data set Y, and the data sets are normally distributed. Which statement i
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<span>The standard deviation is a measure of how far dispersed around the mean the individual parts of a distribution are. Therefore, because data set X has a greater spread, its standard deviation is going to be greater than that of data set Y. Items such as the mean, median, or mode are measures of central tendency and do not impact the standard deviation.</span>
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4 years ago
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Find the cosine and sine of 180 degrees. Round your answers to the nearest hundredth if necessary.
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Sin(180)=0, cos(180)=-1
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4 years ago
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Let f be a differentiable function such that f(1)=π and f'(x)=√x^3+6. what is the value of f(5)?
natali 33 [55]

The value of f(5) is 49.1

Step-by-step explanation:

To find f(x) from f'(x) use the integration

f(x) = ∫ f'(x)

1. Find The integration of f'(x) with the constant term

2. Substitute x by 1 and f(x) by π to find the constant term

3. Write the differential function f(x) and substitute x by 5 to find f(5)

∵ f'(x) = \sqrt{x^{3}} + 6

- Change the root to fraction power

∵ \sqrt{x^{3}} = x^{\frac{3}{2}}

∴ f'(x) = x^{\frac{3}{2}} + 6

∴ f(x) = ∫ x^{\frac{3}{2}} + 6

- In integration add the power by 1 and divide the coefficient by the

 new power and insert x with the constant term

∴ f(x) = \frac{x^{\frac{5}{2}}}{\frac{5}{2}} + 6x + c

- c is the constant of integration

∵ \frac{x^{\frac{5}{2}}}{\frac{5}{2}}=\frac{2}{5}x^{\frac{5}{2}}

∴ f(x) = \frac{2}{5} x^{\frac{5}{2}} + 6x + c

- To find c substitute x by 1 and f(x) by π

∴ π = \frac{2}{5} (1)^{\frac{5}{2}} + 6(1) + c

∴ π = \frac{2}{5} + 6 + c

∴ π = 6.4 + c

- Subtract 6.4 from both sides

∴ c = - 3.2584

∴ f(x) = \frac{2}{5} x^{\frac{5}{2}} + 6x - 3.2584

To find f(5) Substitute x by 5

∵ x = 5

∴ f(5) = \frac{2}{5} (5)^{\frac{5}{2}} + 6(5) - 3.2584

∴ f(5) = 49.1

The value of f(5) is 49.1

Learn more:

You can learn more about differentiation in brainly.com/question/4279146

#LearnwithBrainly

4 0
3 years ago
3/4 of 84 contestants guessed incorrectly how many contestants guessed incorrectly
adelina 88 [10]
First figure out how many people are 1/4 of 84 by dividing 84 by 4 =21. Then multiply 21 by 3 to figure out how many people are 3/4 of 84 =63. 63 people guessed incorrectly and 21 people guessed correctly:)
8 0
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Least commom multiple of 2 and 4?
Ivan

Answer:

4

<em>BRAINLIEST, PLEASE!</em>

Step-by-step explanation:

Multiples of 2: 2, <u>4</u>, 6, 8, 10

Multiples of 4: <u>4</u>, 8, 12, 16, 20

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