3 years ago

Pls help thank you:)

Mathematics

1 answer:

labwork [276]3 years ago

4 0

Answer:

|2x-5|<3

Step-by-step explanation:

.............

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What is the value of the expression “eight more than three times the difference of four and a number” when n = 3?

Trava [24]

Answer:

The value of the expression would be 11.

Step-by-step explanation:

3 (4 - n) + 8

When n = 3:

3 (4 - 3) + 8

3 (1) + 8

3 + 8

8 0

3 years ago

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1. what is the equation of a line that has an x-intercept of 2 and a y-intercept of 8

Phoenix [80]

Answer:

Step-by-step explanation:

x- intercept = 2 .So, Coordinate(2 , 0)

y-intercept = 8 . So, Coordinate (0, 8)

$Slope = \frac{8-0}{0-2}\\\\=\frac{8}{-2}\\\\=-4$

Slope y-intercept form: y = mx + b {Here, b is y-intercept}

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3 years ago

True or false: the equation tan^2x+1=sec^2x

zhenek [66]

ANSWER

True

EXPLANATION

The given trigonometric equation is:

${ \tan}^{2} x + 1 = { \sec}^{2} x$

We take the LHS and simplify to arrive at the RHS.

${ \tan}^{2} x + 1 = \frac{{ \sin}^{2} x}{{ \cos}^{2} x} + 1$

Collect LCM on the right hand side to get;

${ \tan}^{2} x + 1 = \frac{{ \sin}^{2} x + {\cos}^{2} x}{{ \cos}^{2} x}$

This implies that

${ \tan}^{2} x + 1 = \frac{1}{{ \cos}^{2} x} .$

${ \tan}^{2} x + 1 = {( \frac{1}{ \cos(x) }) }^{2}$

${ \tan}^{2} x + 1 = { \sec}^{2} x$

This identity has been verified .Therefore the correct answer is true.

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3 years ago

Can u help me answer dis

gavmur [86]

Answer:

the base is 10 and the height is 6.4

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3 years ago

Im not sure how to do this 5×(−2w−4)

Mama L [17]

Answer:

-10w-20

Step-by-step explanation:

Distribute inside parenthesis,

5x 2w

5x-4

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2 years ago

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Pls help thank you:)​

Pls help thank you:)