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7nadin3 [17]
3 years ago
14

Im confused by this question, what is the answer

Mathematics
1 answer:
Veronika [31]3 years ago
4 0
If I don’t know a answer I always put C it might be wrong but it’s a 50/50 chance
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Rujuan
Leona [35]

Answer:

Sin X=Cos Y

Step-by-step explanation:

Objective: Understand trigonometric relations such that

Cosine and Sine are similar to complementary angles that if X+Y are complementary angles,

Cos X= Sin Y and Cos Y= Sin X

7 0
3 years ago
Ellie practices piano 2/3 h per day, several days each week. She practiced piano 32/23 hours during the summer.
butalik [34]

Let us assume that the number of days she practiced the piano to be "d"

Since she practiced 2/3 hours a day, the total number of hours would be: 2/3*d

Now we are given the total number of hours during summer that she practiced  be be equal to 32/23

So we equate 2/3 * d to 32/23 to find d

2/3*d = 32/23

d = (32/23)/ (2/3)

d = (32/23) * (3/2)

d = 48/23 hours

The equation that can be used to find the number of days that she practiced piano during the summer is 2/3*d = 32/23

3 0
3 years ago
Best estimate of 48% of 159
olga55 [171]

Answer:

76.32

Step-by-step explanation:

Move the decimal point two times to the left 48. --> .48

Multiply .48 by 159

= 76.32

8 0
3 years ago
last season, a pitcher had an earned run average of 2.80 and allowed 70 earned runs. How many innings did the pitcher pitch last
brilliants [131]
4 innings and that's with the 70 earned runs
4 0
3 years ago
A department store is having a 55% off sale on all sport coats. If you have a coupon for an additional 10% off of any item, how
guajiro [1.7K]

Answer:

93.15

Step-by-step explanation:

Multiply 230.00 dollars and 0.55 = 126.50

Subtract 230.00 dollars and 126.50 = 103.50

Multiply 103.50 and 0.10 = 10.35

Subtract 103.50 and 10.35 = 93.15

8 0
3 years ago
Read 2 more answers
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