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2 years ago

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Differentiate. Y=5x^2 +6x

1 answer:

blagie [28]2 years ago

5 0

The answer to this question is y' = 10x^2 + 6. You have to use the power rule to bring the exponent down as a coefficient and then reduce the exponent by 1. Do it for all the terms using the sum rule for derivatives (derivative of a sum of the sum of its derivatives).

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You have just bought a new television and it has an aspect ratio of 16:9. The screen on the television is 65 inches. What is the

sp2606 [1]

Answer:

A

Step-by-step explanation:

The TV to have a 16:9 ratio and have a diagonal of 65 inches must have a length & width whose squares add to 4,225 (65 squared) and whose ratio length and width simplifies to 16/9.

B is not an option because $16^2+9^2\neq 65^2$ .

C is not an option because $\frac{42.59}{21.22}\neq \frac{16}{9}$ which is 1.777777777778 as a decimal.

D fails for the same reason as C.

Therefore A is the solution because $\frac{56.65}{31.86}=\frac{16}{9}$ and $65.65^2+31.86^2 = 65^2$

4 0

2 years ago

Select all that are undefined csc(pi) cot(pi/2) cot(pi) sec(45 degrees) csc(0 degrees) sec(90 degrees)

lorasvet [3.4K]

Answer:

Csc(pi)

Cot(pi)

Csc(0)

Sec(90)

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

The equation of the line that contains the points (-8, 1) and (0, -5) is

posledela

Answer:

y = -3/4x -5 (G)

Step-by-step explanation:

Find the slope by using the slope formula. (It's hard to format here so look it up)

Basically, it is y2 - y1/x2 - x1

-5 - 1/ 0 + 8

-6/8 = -3/4

The slope is -3/4.

Plug in for y = mx + b

y (y coordinate) = -5

x (x coordinate) = 0

slope (m) = -3/4

-5 = -3/4(0) + b

-5 = 0 + b

b = -5

y = -3/4x -5

5 0

2 years ago

Which is NOT a true statement?

rusak2 [61]

Answer:

option 4

Step-by-step explanation:

|a| represents Absolute value, it is the distance from zero that a number is on the number line. And we know distance cannot be negative.

So,

$|a| = a$

$|-a| = a\\\\| \frac{-a}{b}| = \frac{a}{b}\\\\|\frac{a}{-b}| = \frac{a}{b}$

6 0

2 years ago

Read 2 more answers

Alejandro uses the steps below to convert

dezoksy [38]

Answer:

The division was computed incorrectly.

Step-by-step explanation:

Given

Workings:

$\frac{5}{8}$ to percentage

$\frac{8}{5} = 1.6 = 160\%$

Required

Explain his error

The question says 5/8

Instead, Alejandro's working shows 8/5.

This working is done in an incorrect order and the correct solution is:

Let

$x = \frac{5}{8}$

Solve the fraction

$x = 0.625$

Multiply by 100%

$x = 0.625 * 100\%$

$x = 62.5\%$

<em>Hence, option (a) is correct.</em>

7 0

1 year ago