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3 years ago

I don’t understand this very much pls help

Mathematics

1 answer:

Annette [7]3 years ago

8 0

Answer:

Side RP

Step-by-step explanation:

so you see the dashes on the sides that means theyre equal so...

Side LM has one dash and Side RP has one dash so they are corresponding

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Prove or disprove that (1)/(1-cot x) is the same as (sin x)/(sin x - cos x)

SIZIF [17.4K]

$\dfrac{1}{1-\cot x}=\dfrac{\sin x}{\sin x-\cos x}\\\\L_s=\dfrac{1}{1-\dfrac{\cos x}{\sin x}}=\dfrac{1}{\dfrac{\sin x}{\sin x}-\dfrac{\cos x}{\sin x}}=\dfrac{1}{\dfrac{\sin x-\cos x}{\sin x}}=\dfrac{\sin x}{\sin x-\cos x}=R_s$

$\text{Used:}\\\\\cot x=\dfrac{\cos x}{\sin x}$

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3 years ago

Two years ago Carol's living expenses were $ 1200 $ 1200 per month. This year the same items cost Carol $ 1400 $ 1400 per month.

EleoNora [17]

Given:
2 years ago - consumer price index 1,200 per month
current year - consumer price index 1,400 per month

Inflation rate = [(Consumer price index current - Consumer price index previous) / Consumer price index previous ] * 100%

Inflation rate = [(1400 - 1200) / 1200] * 100% = (200 / 1200) * 100% = 16.67%

Since 2 years has passed, the 16.67% inflation rate is good for 2 years. We simply divide the inflation rate by 2 to get the annual inflation rate.

16.66% / 2 = 8.33%

The annual inflation rate for the past two years is 8.33%

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3 years ago

Read 2 more answers

Suppose g′(t)=(t−3)(t−6)(t−11)

kirza4 [7]

E casue it iseasy like that

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4 years ago

A triangle is such that the largest angle is 3 times the smallest angle. The third angle is 23 less than the largest angle. Find

Leokris [45]

largest angle: 3x

smallest angle: x

third angle: 3x - 23

The sum of the angles of a triangle equals 180°

(3x) + (x) + (3x -23) = 180

7x - 23 = 180

7x = 203

x = 29

largest angle: 3x = 3(29) = 87

third angle: 3x - 23 = 3(29) - 23 = 87 - 23 = 64

Answer: 29°, 64°, 87°

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3 years ago

You are making several purchases from the I.B. Electric electronics store. You can buy from this store online or in a physical s

hammer [34]

Answer:

Online store will save the most money

Step-by-step explanation:

Amount used in Physical store

Batteries 2packs @$5.99 cost = $5.99*2=$11.98

Stereo 1 system @$100 cost = $100*1=$100

CDs 3 CDs @$7.95 cost = $ 23.85

Total cost= $11.98+$100+$23.85= $135.83

Applying the 10% off coupon = 90/100 * $135.83 =$ 122.25

Applying sale tax 5% = 105/100 * 122.25=$128.36

Amount to spend when using physical store= $128.36

Now calculate for the online store

Batteries 2packs @$4.99 cost= $4.99*2=$ 9.98

Stereo 1 system @$90 cost= $ 90 *1= $90

CDs 3 CDs @$8.95 cost = $8.95*3=$26.85

Total cost=$9.98+$90+$26.85=$126.83

Applying the 5% off coupon= 95/100*126.83=$120.49

Applying the sale tax, $6.99+$120.49=$127.48

Comparing the two ways,

Physical store= $128.36

Online store=$127.48

Online store will save the most money by ($128.36-$127.48)=0.88

8 0

3 years ago