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2 years ago

How do i solve tan 6° = f/2.3

Mathematics

1 answer:

kondor19780726 [428]2 years ago

5 0

Multiply both sides by 2.3, ( tan 6° x 2.3 = f )
Regroup terms, 2.3 tan 6 = f.
F = 2.3 tan 6°
So the answer is tan 6 = tan 6 I think

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The centers for disease control and prevention reports 25% baby boys 6 to 8 months in the US weigh more than 20 pounds a sample

Vesna [10]

Answer:

P(x < 3) = 0.1971

Explanation:

To calculate the probability that x babies weigh more than 20 pounds, we will use the binomial distribution, so it can be calculated as:

$\begin{gathered} P(x)=nCx\cdot p^x\cdot(1-p)^{n-x} \\ Where\text{ nCx=}\frac{n!}{x!(n-x)!} \\ \\ With\text{ n = size of sample} \\ p=\text{ probability of success \lparen the baby weight more than 20 pounds\rparen} \end{gathered}$

So, replacing n = 16 and p = 0.25, we get that the probability is equal to

P(x) = 16Cx (0.25)^x (1 - 0.25)^(16 - x)

$P(x)=16Cx\cdot0.25^x\cdot(1-0.25)^{16-x}$

Now, the probability that fewer than three weights more than 20 pounds are equal to

$\begin{gathered} P(x$

Then

P(x < 3) = 0.01 + 0.0535 + 0.1336

P(x < 3) = 0.1971

Therefore, the answer is

P(x < 3) = 0.1971

3 0

1 year ago

To receive a C grade, a student must average more than 77 but less than or equal to 85. If Ethan received a C in the course and

den301095 [7]

Answer:

So for his mark will be in between 82 to 130 for C grade

Step-by-step explanation:

We have given that for C grade the minimum average mark should be 77 and maximum average mark should be 85

There are 6 subjects

So total minimum mark = 6×77 =462

And total maximum mark = 85×6 =510

He has five grades as 74,78,76,67,85

So sum of five grades = 74+78+76+67+85=380

Let he get x marks in 6th

So for minimum mark in 6th grade x+380 = 462

x = 462-380=82

For maximum mark x+380=510

x = 510-380 =130

So for his mark will be in between 82 to 130 for C grade

5 0

3 years ago

The cost for 15 cases of oranges is $75. What is the cost for 1 case? *

postnew [5]

Answer:Ok I This question can be solved using a system of equation, which requires translating the above word problem into something that can be algebraically

Let O=oranges and Let G=Grapefruit

5O +8G=235

3O + 2G=85

To solve, you must isolate one of the variables and then work from there. To do that multiply both sides of the bottom or second equation by four and then subtract the bottom equation from the top.

Which would look like this

5O +8G=235

12O + 8G= 340

Then subtract the bottom from the top to get this

-7O=-105

Solving for O we divide both sides by -7, and end up with O=15

Plugging that value back into one of our original equations to solve for G we get this

3(15) + 2G= 85

45 +2G=85

2G=40

G=20

So 1 case of each altogether would equal 15+20, or $35.

<h3>Hope this helps have a awesome night/day❤️✨</h3>

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

How do you do this? Help me please.

Rufina [12.5K]

Answer:

2800

Step-by-step explanation:

The dress's price increased by a factor of 9/7 so to undo this you flip the numbers around to get 7/9 and multiply the new price by this to get the original price.

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3 years ago

How do i find the arc with the radius central angle

Mila [183]

Answer:

The relationship between the arc length (S), the radius (r), and the angle subtended by the arc at the center (theta), is given by the formula S = r(theta), when theta is in radians. And is given by ((theta)/360) x 2pi r, when theta is in degrees.

Step-by-step explanation:

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4 years ago