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Bumek [7]
3 years ago
7

Use ΔDEF, shown below, to answer the question that follows

Mathematics
1 answer:
AVprozaik [17]3 years ago
8 0
Using sine rule, 55 / sin 90 = x / sin(90 - 49)
55 / 1 = x / sin 41
x = 55 sin 41 = 36.08
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PLEASE HELP- what is 51 3/4 simplified
Wittaler [7]

Answer:

You can not simplify that, sorry, hope that helped

Step-by-step explanation:

8 0
2 years ago
LEon made 4 liters of lemonade for the party, but it was too strong, it was 14% lemon juice. How much 8% lemonade should he add
dsp73
<span>Item       Number of Liters          Percentage of LemoneA                    4        14%B                    x         8%Result           4+x            10%
For a mixture of solutions to form a resulting solution, we know
V1 * N1 + v2 * N2 = V * N
where, V1 = Volume of mixture of 1 N1 = Concentration of mixture 1V2 = Volume of mixture of 2 N2 = Concentration of mixture 2
V = volume of mixture N = Concentration of mixture
So solving we get:
(4+x)*10 = 4*14 + x * 8or, 10x-8x = 4*14-4*10or, 2x = 16or x = 8
so 8 litres of the solution B must be added to the solution<span>
</span></span>
5 0
3 years ago
Will give brainliest! please help!
lana [24]

Answer:

B

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
What is (3-4i)^2? In complex numbers?
ANTONII [103]
(3-4i)^2=9-24i-16=-7-24i
5 0
3 years ago
This may prove to be somewhat tricky.) Suppose that we have 10 coins, which are weighted so thatwhen flipped theith coin shows h
timama [110]

Answer:

2/10

Step-by-step explanation:

Probability of getting head on i'th coin = i/10

Probability Pr of getting head on 2nd coin (Event A) = 2 / 10

Probability Pr of getting head on 1st coin (Event B) = 1/10

Probability A given B = Pr (A/B) = Pr (A∩B) / Pr B ;

where A∩B = Pr (A & B) = Pr A X Pr B

Putting in above formula :

Pr (A/B) = <u>[(</u>1/10)x(2/10<u>)]</u>  / 1/10

= 2/10

4 0
3 years ago
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