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aleksandr82 [10.1K]
2 years ago
7

HURRY PLEASE. I NEED THE ANSWER BY TOMORROW AND I WILL LITERALLY DIE WITHOUT THE ANSWER PLEASE I NEED IT HURRY. WILL GIVE BRAINL

YIST TO THE FIRST RIGHT ANSWER.

Mathematics
1 answer:
Scrat [10]2 years ago
3 0

Answer:

LK WA LA K

Step-by-step explanation:

A single lap should be completed each time you hear this sound. [ding] Remember to run in a straight line, and run as long as possible

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Use the fundamental identities and appropriate algebraic operations to simplify the following expression. (18 +tan x) (18-tan x)
andrezito [222]

Answer:

a) \left(18+\tan \left(x\right)\right)\left(18-\tan \left(x\right)\right)+\sec ^2\left(x\right)=325

b) The lowest point of y=\cos \left(x\right), 0\leq x\leq 2\pi is when x = \pi

Step-by-step explanation:

a) To simplify the expression \left(18+\tan \left(x\right)\right)\left(18-\tan \left(x\right)\right)+\sec ^2\left(x\right) you must:

Apply Difference of Two Squares Formula: \left(a+b\right)\left(a-b\right)=a^2-b^2

a=18,\:b=\tan \left(x\right)

\left(18+\tan \left(x\right)\right)\left(18-\tan \left(x\right)\right)=18^2-\tan ^2\left(x\right)=324-\tan ^2\left(x\right)

324-\tan ^2\left(x\right)+\sec ^2\left(x\right)

Apply the Pythagorean Identity 1+\tan ^2\left(x\right)=\sec ^2\left(x\right)

From the Pythagorean Identity, we know that 1=-\tan ^2\left(x\right)+\sec ^2\left(x\right)

Therefore,

324[-\tan ^2\left(x\right)+\sec ^2\left(x\right))]\\324[+1]\\325

b) According with the below graph, the lowest point of y=\cos \left(x\right), 0\leq x\leq 2\pi is when x = \pi

3 0
3 years ago
Cuánto es –a +28=14???
eimsori [14]

Answer:

a=14

Step-by-step explanation:

-a+28=14

So -a=-14

so a=14

6 0
2 years ago
Read 2 more answers
Find the magnitude of the vector 3i +4j​
Nadusha1986 [10]

Answer:

5

Step-by-step explanation:

magnitude of the vector

=√(3²+4²)

=√25

=5

3 0
3 years ago
Can someone create two expressions that are equivalent to 3(4j + 4 + j). Please show all steps in your work.
NNADVOKAT [17]
12j + 12 + 3j or 15j + 12. This is because if you use Distributive Property to distribute the 3, then you multiply 3 by all the number inside the parentheses. I have two expressions because once you get get the answer after you use the property, then you can combine like terms, such as 12j and 3j which is 15j. Hope this helps!
4 0
3 years ago
Read 2 more answers
What is the slope of this line?<br> y = -2x + 6
KengaRu [80]

Answer:

<h2>slope = -2</h2>

Step-by-step explanation:

The slope-intercept form of an equation of a line:

<em>y = mx + b</em>

<em>m</em><em> - slope</em>

<em>b</em><em> - y-intercept</em>

<em />

We have the equation:

<em>y = -2x + 6</em>

therefore

<em>m = -2</em>

<em>b = 6</em>

8 0
3 years ago
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