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elena55 [62]
3 years ago
12

Please help me with my work

Mathematics
1 answer:
JulsSmile [24]3 years ago
5 0
321 because you need to use the formula
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X f(x)
Gekata [30.6K]

Answer:A

Step-by-step explanation:

6 0
3 years ago
In 1000 tosses of a coin, 560 heads and 440 tails. is it reasonable to assume that the coin is fair?
Maurinko [17]
No   If the coin was fair the 2 values should be closer together.  The probability of a head ( and a tail)  should be close to 1/2  for a fair coin.
3 0
3 years ago
Can somebody please help me
irinina [24]

Answer:

72 degrees.

Step-by-step explanation:

As it is a right angled triangle and if the smaller acute angle = x degrees then:

x + 4x + 90 = 180.

5x = 90

x = 18 degrees.

The larger acute angle = 4x = 4*18

=  72 degrees.

3 0
4 years ago
The elevation E, in meters, above sea level at which the boiling point of a certain liquid is t degrees Celsius is given by the
otez555 [7]
Given function is 

E(t) = 1100(80 - t) + 500(80 - t)^2

At t= 79.5 degree.

So we can place t= 79.5 in given equation

E(79.5) = 1100 (80 - 79.5) + 500* (80 - 79.5)^2

                    = 1100 * 0.5 + 500 * (0.5)^2
                     = 550 + 500 * 0.25
                    = 550 + 125 = 625

So elevation equal to 625 meter at t = 79.5 degree.


3 0
3 years ago
Anyone know what unit rate is ????
Nitella [24]
I unit rate is a normally a fraction with a denominator of one. 

How to find a unit rate...

50 miles / 5 hours ÷ 5 (divide by the denominator) = 10 miles/1 hour
10 miles / 1 hour is a unit rate.

HOPE THIS HELPED :)
3 0
4 years ago
Read 2 more answers
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