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2 years ago

IM DUMB,Need someone SMART to help with TRIGONOMETRY

Mathematics

1 answer:

cricket20 [7]2 years ago

7 0

Answer:

x = 65.4

The answer is 65.4 degrees.

Step-by-step explanation:

You can use either sine, cosine, or tangent to find the measure of angle x, but since the lengths of the adjacent leg and the hypotenuse are already given, cosine will be the easiest to use. The adjacent leg is 5 units long, and the hypotenuse is 12 units long.

Remember, cos(x) = adjacent / hypotenuse.

cos(x) = 5/12

$cos^{-1}$ ( ) both sides

$cos^{-1}$ (cos(x)) = $cos^{-1}$ (5/12)

Simplify ( $cos^{-1}$ (cos(x)) ⇒ x)

x = $cos^{-1}$ (5/12)

Use calculator (make sure it is in degrees, not radians)

x = 65.37568165...

Round to the nearest tenth

x = 65.4

I hope this helps.

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Write an equation of the line with the given slope that contains the given point.

Alchen [17]

Answer:

$y=-2x+12$

Step-by-step explanation:

We can use the point-slope form given by:

$y-y_1=m(x-x_1)$

Where <em>m</em> is the slope and (x₁, y₁) is a point.

So, we will substitute -2 for <em>m</em> and (5, 2) for (x₁, y₁). This gives us:

$y-(2)=-2(x-(5))$

Simplify:

$y-2=-2(x-5)$

Distribute:

$y-2=-2x+10$

Add 2 to both sides. Hence, our equation is:

$y=-2x+12$

3 0

2 years ago

Lucy earned $400 and $550 in interest the last 2 years. Describe the average interest she should earn in each of the next 3 year

Rzqust [24]

So she has 400 and 500 so far.

now if she were to have an average of 2300 for the next 5 years, that means some years she made more, some she made less, but in the 5 years run, she made 2300 * 5 or 11500 total.

Neverminding the lows and highs, if we bundle up the 11500 bucks and divide by 5, that'd 2300, which is what's called the average, the average amount doesn't take into account that some numbers are higher than others, it kinda just flattens them out.

so in total she would have made 11500 in each account.

so in the account with 400, she needs 11100 more, how much will it be 1100 for the next three years on average? 11100/3 or 3700.

so if she earns 3700 each year, for the next 3 years in the account with 400 already, she'd have 11500 bucks in 5 years with an average of 2300.

now let's look at the 500 account, she needs 11000 more, how much will it be for 11000 for the next three years on average? 11000/3 or about 3666.67.

so if she earns 3666.67 each year, for the next 3 years, she'd have 11500 bucks in 5 yeas with an average of 2300.

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3 years ago

According to the general equation for conditional probability, if PLAN B)

Vinvika [58]

Answer:

A.4/7

Step-by-step explanation:

P(A/B) =P(AnB) /P(B)

=1/6/7/24

=1/6×24/7

=4/7

4 0

2 years ago

X=8 units and h=5 units what is the area of the triangle

kykrilka [37]

Area=20. Ur welcome!

4 0

3 years ago

.............I need help thnx

kari74 [83]

The answer is A

hope you found this usefull

3 0

3 years ago

Read 2 more answers

IM DUMB,Need someone SMART to help with TRIGONOMETRY​

IM DUMB,Need someone SMART to help with TRIGONOMETRY