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3 years ago

Can anybody help with this? Please!!

Mathematics

2 answers:

il63 [147K]3 years ago

8 0

cos K = adjacent/hypotenuse

the hypotenuse is your longest angle on the triangle, so that would be 25

I got 7 by looking for the adjacent side of k, so now you just plug in those numbers.

adjacent side of k = 7, hypotenuse = 25

cos k = 7/25

ArbitrLikvidat [17]3 years ago

5 0

Cos is the adjacent (side next to the angle in question) divided by the hypotenuse (sloped side)
for angle K, this is therefore 7/25

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3 years ago

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What is the solution of the following system of equation: 2X+Y=17 AND Y=X+14 ?

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3 years ago

the equation 4(x+9)=76 models this situation which choice shows the sequence of operations neede to slove this problem using bot

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Answer:

Step-by-step explanation:

Here you go mate

Use PEMDAS

Parenthesis,Exponent,Multiplication,Division,Addition,Subtraction

Step 1

4(x+9)=76 Equation/Question

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Hope this helps

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3 years ago

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sveta [45]

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$\frac{4}{9}$

Step-by-step explanation:

Two events are independent of each other, this is called Compound Probability. Classical example is if two coins are filped, what is the probability of getting two heads in a row.?

Answer: each has 50% probability because there are two states only, either H or T. since we have two coins the probability of getting two heads in row is the product of obtaining heads for each individual coin (which is independent of each other). or is $\frac{1}{2}$ × $\frac{1}{2}$ = $\frac{1}{4}$ = 25%. (Notice!).

Back to our problem, now here we have 3 paint brands and one of them is the right paint brand and two of them are not correct brands. so the prabablity that the customer has picked not correct brand is $\frac{2}{3}$ and her husband has not picked correct brand is also $\frac{2}{3}$ , since two probabilities are compound probabilities i.e indepandant of each other the probablity that both woman and her husband fail get correct brand is the product of the two and is = $\frac{2}{3}$ × $\frac{2}{3}$ = $\frac{4}{9}$ .

4 0

3 years ago