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attashe74 [19]
3 years ago
15

Hey please help me! :P Giving out brainlest too! :P

Mathematics
1 answer:
meriva3 years ago
5 0

Answer:

7.8 (1dp)

Step-by-step explanation:

k=180-161

k=19°

180=18z+3+5z-3

180=23z

z=180/23

z=7.8 (1dp)

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At Edwards Middle School there are 8 teachers for every 136 students. There are 850 students enrolled at the school. How many te
In-s [12.5K]

Answer:

50

Step-by-step explanation:

one teacher per 17 students

7 0
2 years ago
Read 2 more answers
I need help im stuck
Katyanochek1 [597]

Answer:

4712.4

Step-by-step explanation:

I got the same question a few days ago.

The volume is πr^2 * h / 3

r = 15

h =  20

225π * 20 / 3

1500π

It's 4712.38898

Round to 4712.4

6 0
3 years ago
Supervisor a earns a flat rate of $25 per hour, while supervisor b earns $20 per hour for the first 30 hours and then 50% more f
mixas84 [53]
Let same number of hours = x, 
since the salary earned is also the same, then
Salary of supervisor A = $25x
Salary of supervisor B = $20(30)+$30(x-30)
Equating
25x=600+30(x-30)
30x-25x=900-600
5x=300
x=60 hours
Check:
Salary of supervisor A = 25*60=1500
Salary of supervisor B =  20*30+30*(60-30)=600+900=1500, ok.
5 0
3 years ago
How do I get this answer and what is it
Sedaia [141]
The degree is 5, so the largest exponent of the polynomial is 5. This means the answer is either A or B. Choice C is ruled out because the degree here is 7. Choice D is ruled out because the degree here is 6

For choice A, the leading coefficient is 6. This is the number to the left of the variable term of the largest exponent. So we can rule out choice A (because the leading coefficient should be 7)

Choice B is the answer. It has a degree of 5 and a leading coefficient of 7 and also a constant term of 6. The constant term is simply the term without any variables attached to it.
7 0
3 years ago
Find the vertex of the graph of the following quadratic equations y= -3x^2 -12x-13
choli [55]
By using the rule -b/2a —> 12/-6= -2
3 0
3 years ago
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