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3 years ago

Someone please help with 13 and 14

Mathematics

1 answer:

dlinn [17]3 years ago

6 0

Answer:

Step-by-step explanation:

13 is 76 because it’s vertical to UYV

14 is 40 because it’s vertical to TYU

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The position of a particle on a straight line is given by s(t) = 3 – cos(t).

kiruha [24]

Given the position function

s(t) = 3 - cos(t )

differentiate once to get the velocity, and twice to get the acceleration:

v(t) = s'(t) = sin(t ) → v (4.3 s) ≈ -0.92

a(t) = s''(t) = v'(t) = cos(t ) → a (4.3 s) ≈ -0.40

The acceleration is negative, so the particle is slowing down.

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3 years ago

Draw a line Representing the “rise”in a line representing the “run”of the line state loop of the line and simplest form

ArbitrLikvidat [17]

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3 years ago

Solve this problem out

Virty [35]

Option C

When $(2x - 3)^2$ is subtracted from $5x^2$ then the result is $x^2 + 12x - 9$

<h3>Solution:</h3>

Given that $(2x - 3)^2$ is subtracted from $5x^2$

We have to find the result

Subtraction is a mathematical operation that tells us the difference between two numbers.

When "a" is subtracted from "b", we write in mathematical expression as "b - a"

So $(2x - 3)^2$ is subtracted from $5x^2$ is written mathematically as:

$\rightarrow 5x^2 - (2x - 3)^2$

Expanding the above expression using algebraic identity:

$(a-b)^2 = a^2 - 2ab + b^2$

$\rightarrow 5x^2 - ((2x)^2 -2(2x)(3) + (3)^2)\\\\\rightarrow 5x^2 - (4x^2 - 12x + 9)$

Multiplying the nnegative sign with terms inside bracket

There are two simple rules to remember:

When you multiply a negative number by a positive number then the product is always negative.

When you multiply two negative numbers or two positive numbers then the product is always positive.

$\rightarrow 5x^2 - (4x^2 - 12x + 9)\\\\\rightarrow 5x^2 - 4x^2 + 12x -9\\\\\rightarrow x^2 + 12x - 9$

Hence the result is: $x^2 + 12x - 9$

3 0

3 years ago

Write the equation of the line in fully simplified slope-intercept form.

DochEvi [55]

Answer: y = -x - 8

Step-by-step explanation:

y = -x - 8

slope = -1/1

yint = -8

4 0

3 years ago

Please help I do not understand

ololo11 [35]

Answer:

Step-by-step explanation:

I’ll help

5 0

3 years ago