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kotykmax [81]
3 years ago
12

Question 12 please Tan(a)/ Sec(a)-cos(a)

Mathematics
1 answer:
stepladder [879]3 years ago
4 0

Answer:

Step-by-step explanation:

\frac{tan ~\alpha }{sec~\alpha -cos~\alpha } \\=\frac{\frac{sin~\alpha }{cos~\alpha } }{\frac{1}{cos~\alpha } -cos~\alpha } \\multiply~numerator~and~denominator~by~cos~\alpha \\=\frac{sin~\alpha }{1-cos^2~\alpha }=\frac{sin~\alpha }{sin ^2~\alpha } \\=\frac{1}{sin~\alpha } \\=cosec~\alpha

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Jordan has been offered two summer jobs. One job is at the mall and pays $7 per hour. the other job is with your neighbor, who w
Masja [62]
7x=5x+50
2x=50
x=25

Jordan would have to work 25 hours per week in order for both jobs to pay the same amount.
8 0
3 years ago
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Mr. Simpson feeds his dog 1⁄2 of a cup of dog food each day. How long will 4 cups of dog food
juin [17]

Answer:

The food will last 8 days

Step-by-step explanation:

4 cups ; 1 cup has two halfs

2 multiplied by 4 = 8

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295 feet = _____ meters ?
katen-ka-za [31]

Answer:

Hello! I hope I am correct!

Step-by-step explanation:

295 feet will equal to 89.916 meters.

Steps in order to solve this problem:

First you have to multiply the length in feet by 0.3048.

295x 0.3048 or 295* 0.3048

(295 feet is equivalent to 89.916 meters!)

Will equal 89.916 meters.

Therefore, 295 feet = 89.916 meter

Hope this helps!

Brainliest would be appreciated!

By:BrainlyAnime

(Picture attached)

3 0
4 years ago
Your company is going to build 4 factories that will use the latest robot technology. One will make prefab buildings, another se
ch4aika [34]

Answer:

a) 230300 ways

b) Check Explanation

Step-by-step explanation:

a) This is a combination problem,

We require how many ways 4 factories be placed among 50 states.

Mathematically, that is

⁵⁰C₄ ways = 230300 ways

b) If you have no idea which states will be chosen, what is the probability that all 4 factories will be located in the mid-Atlantic region.

This can be done in two ways

Method 1

The mid Atlantic region is one of 9 geographic divisions in the US

Probability of 1 factory being located in this geographic region = (1/9)

The probability of the 4 factories being in just this region = (probability of locating one factory in this region)⁴ = (1/9)⁴ = 0.0001524

Method 2

The mid Atlantic region contains only 3 out of 50 states. (New York, New Jersey, Pennsylvania)

Probability of 1 factory being located in one of the 3 stares = (3/50)

Probability of locating all four factories in one of the states in this region = (3/50)⁴ = 0.00001296.

6 0
3 years ago
The perimeter of a rectangle is 36cm. if the area of the rectangle is 56cm2 find the length and width of the rectangle. let the
Leno4ka [110]
Are you sure you want the length to be smaller than the width? It's not exactly the way they're defined. I'll solve it that way, but it's an odd question.

Equations
P = 2L + 2W 
Area = L*W

Substitution and Solve
2L + 2W = 36
L*W = 56

Divide the first equation by 2
L + W = 36/2
L + W = 18
Solve for L
L = 18 - W


Put this result in the second equation
W(18 - W) =  56 Remove the brackets
18W - W^2 = 56 Transfer the Left Side to the Right.
0 = W^2 - 18W + 56 Factor
0 = (W - 14)(W - 4)

W - 14 = 0
W = 14 <<<<<Answer
W - 4 = 0
W = 4

Comment
Both 14 and 4 are in cm
W = 14 cm <<<< answer
L = 4 <<<<< answer
7 0
3 years ago
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