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konstantin123 [22]
3 years ago
11

PLEASE HELP!!!

Mathematics
1 answer:
Scilla [17]3 years ago
3 0
You need the Law of Cosines here and you use it when you have 2 sides and an enclosed angle.  The side across from the angle is the one we are looking for.  The correct way to express the Law using what we have is the last choice above.  Side RT is the unknown, and it is across from the angle that is enclosed between the 2 other sides.
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Solve the system of equations Algebraically.
grandymaker [24]
Since y=x+3 (given)
Put value of y in equation x+y=(-3)
x+x+3=(-3)
2x=(-6)
x=(-3)
Put x=(-3) in x+y=(-3)
(-3)+y=(-3)
y=0
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y=0
4 0
3 years ago
9. YOU BE THE TEACHER Your friend
Crank

Answer:

Step-by-step explanation:

Yes, it's reasonable.

What you are doing is solving the question by rounding. You come up with an answer. Suppose you loose the decimal somewhere and you get 0.36? Is that reasonable? Do you just write the answer in the provided blank and move on. What now?

You get it wrong?!!

But your estimate should be about 9/3 = 3. Now you look at your calculator with great misgivings, because it made a mistake. Did it or did you? Well ultimately you did, but you have to blame something. So the calculator takes the heat.

Who  knows? Maybe the decimal doesn't work. It's stuck or something. In any event you should be aware that there's no way the answer could be 0.36 when you estimate it to be 3.

8 0
3 years ago
When a certain valve is open, 281 gallons go through it in one hour. The number of gallons that would go through in 94 hours is?
yarga [219]
281 gallons/ 60 min= 4.683 gallon per min
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Answer: 440.23 Gallons
8 0
3 years ago
the length of a rectangle is 4 1/6 inches and the width of the rectangle is 8 2/3 inches what is the area of the rectangle
V125BC [204]
36 1/9 is the area
thanks
8 0
3 years ago
(3+62) x (25-17) + 3*2 <br> 2 is an exponent btw
MAXImum [283]

Answer:

529

Step-by-step explanation:

5 0
3 years ago
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