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Inga [223]
3 years ago
8

#9 Order of Operations

Mathematics
1 answer:
Rus_ich [418]3 years ago
6 0

Answer:

c=39

Step-by-step explanation:

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Find the measure of the indicated side or angle.
lozanna [386]

Answer:

60°

Step-by-step explanation:

We'll begin by calculating EC. This can be obtained as follow:

Angle EAC = 39°

Hypothenus = EA = 3.7 m

Opposite = EC =?

Sine EAC = Opposite /Hypothenus

Sine 39 = EC / 3.7

Cross multiply

EC = 3.7 × Sine 39

EC = 2.3 m

Finally, we shall determine angle BEC. This can be obtained as follow:

Adjacent = EC = 2.3 m

Hypothenus = BC = 4.6 m

Angle BEC =?

Cos BEC = Adjacent / Hypothenus

Cos BEC = 2.3 / 4.6

Cos BEC = 0.5

Take the inverse of Cos

BEC = Cos¯¹ 0.5

BEC = 60°

Thus, angle BEC is 60°

7 0
3 years ago
8–2|4–5y|=4 help me as quick as u can plzzz
Svetach [21]

Answer: y=\frac{2}{5}, \frac{6}{5}

Step-by-step explanation:

When answering a problem like this, you first isolate the absolute value.  TO do this, first subtract 8 from both sides, to get –2|4–5y|=-4.  Then divide both sides of the equation to get |4–5y|=2.  The next thing you do is split the equation into 4-5y=2 and 4-5y=-2, because the contents of the absolute value could be negative or positive, and simplifying both into y = 2/5, and y = 6/5y.

Hope it helps <3

4 0
3 years ago
2748 mile flight 6 hours
Karo-lina-s [1.5K]
We Know, speed = Distance / Time
Here, Distance = 2748 miles
Time = 6 hours

Substitute their values in to the expression,
Speed = 2748 / 6 = 458 Miles / Hour

So, the speed would be: 458 miles/hour

Hope this helps!
7 0
3 years ago
This chart shows the number of books that eight students read last year. Which of the following statements is true about this da
RideAnS [48]

Answer:

I beleve there is not enough info because there isnt a chart....

Step-by-step explanation:

8 0
3 years ago
What is 11/2 as a decimal
dimaraw [331]
The answer to your problem is 5.5 because if you do this problem (5.5 + 5.5) it is 11
6 0
3 years ago
Read 2 more answers
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