WHO EVER IS GUD AT MATH

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Answer 1

Answer:

Answer:

the 2nd one I think i mean I forget stuff but not math that much

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A plane leaves the airport in galisteo and flies 170 km at 68 degrees east of north; then it changes direction to fly 230 km at 36 degrees south of east, after which it makes an immediate emergency landing in a pasture. When the airport sends out a rescue crew, in which direction and how far should this crew fly to go directly to this plane?
What is the missing term? Please help me
Select the correct answer.Which of these sentences is always true for a parallelogram?
Can answer this 1/2 + 2/5=
Find the z-score for the standard normal distribution where: P (z< -a) = 0.2451

Answer the question in the picture

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Recall the angle sum identities:

$\sin(x+y)=\sin x\cos y+\cos x\sin y$

$\cos(x+y)=\cos x\cos y-\sin x\sin y$

Now,

$\tan(x+y)=(\sin(x+y))/(\cos(x+y))=(\sin x\cos y+\cos x\sin y)/(\cos x\cos y-\sin x\sin y)$

Divide through numerator and denominator by $\cos x\cos y$ to get

$\tan(x+y)=(\tan x+\tan y)/(1-\tan x\tan y)$

Next, we use the fact that $x,y$ lie in the first quadrant to determine that

$\sin x=\frac12\implies\cos x=√(1-\sin^2x)=\frac{\sqrt3}2$

$\cos y=\frac{\sqrt2}2\implies\sin x=√(1-\cos^2x)=\frac1{\sqrt2}$

So we then have

$\tan x=(\sin x)/(\cos x)=\frac{\frac12}{\frac{\sqrt3}2}=\frac1{\sqrt3}$

$\tan y=(\sin y)/(\cos y)=\frac{\frac1{\sqrt2}}{\frac{\sqrt2}2}=1$

Finally,

$\tan(x+y)=\frac{\frac1{\sqrt3}+1}{1-\frac1{\sqrt3}}=(1+\sqrt3)/(\sqrt3-1)=2+\sqrt3\approx3.73$

Its due soon help ill give brainliestThe price of a pair of headphones at Store A is 3/4 the price at Store B.
The price at Store A is $89.25. Find how much you save by buying the headphones at Store A
a. 119
b. 72
c. 29.75

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The answer is C, 29.75

Answer:

alt answer to give ya brainliest nxsdsvfkbjnvbc

Step-by-step explanation:

cnrgnsdmx

Please I need help it’s an emergency

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Answer:

h = 79 m

Step-by-step explanation:

The length of the string, H = 125 m

The kite forms 39° angle.

We need to find the height of the kite. Let it is h. We can find it using trigonometry i.e.

$\sin\theta=(P)/(H)$

Where

P is perpendicular and H is Hypotenuse

So,

$\sin\theta=(h)/(H)\n\nh=H* \sin\theta\n\nh=125* \sin(39)\n\nh=78.66\ m$

h = 79 m

So, the kite is flying at a height of 79 m.

The concentration of DDT (C14H9Cl5), in milligrams per liter, is:(1) a nominal variable
(2) an ordinal variable
(3) an interval variable
(4) a ratio variable.

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Answer:

The correct answer is (4) a ratio variable

Step-by-step explanation:

Nominal, ordinal, interval, or ratio data are the four fundamental levels of measurement scales that are used to capture data.

Nominal scales are used for labeling variables, without any quantitative value.

Ordinal the order of the values is what is significant, but the differences between each one is not really known.

Interval we know both, the order and the exact differences between the values

Ratio they have the order, the exact value between units, and have an absolute zero

In this case, the concentration of DDT (C14H9Cl5), in milligrams per liter is a RATIO, because it has order, the exact value between units, and have an absolute zero

Raghav has to load 2456 cartons of apples equally in 5 trucks. how many cartons will be left unloaded in the end?

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Answer:

12,280

Step-by-step explanation:

just do 1456×5 :))

How many ways are there to add four positive odd numbers to get a sum of 22?

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there are 18 ways to add four positive numbers to get 22

WHO EVER IS GUD AT MATHPLZ HELP ASAP

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WHO EVER IS GUD AT MATH

PLZ HELP ASAP