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melomori [17]
3 years ago
12

Solve for y.

Mathematics
1 answer:
mamaluj [8]3 years ago
3 0
I'm pretty sure the answer is D
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Help me guys! This question is hard for me
TiliK225 [7]

Answer:

should be answer A

Step-by-step explanation:

6 0
3 years ago
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Find the area of the trapezoid below
ki77a [65]
The total are is 828 cm
5 0
3 years ago
4^2-(-4+10)============
Gekata [30.6K]

Answer:

10

Step-by-step explanation:

4 squared= 16

16-(-4+10)= 16-6= 10

7 0
4 years ago
In a certain lake, trout average 12 in. in length with standard deviation 2.75 in. and the bass average 4 lb. in weight with sta
NISA [10]

Answer:

The bass fish was the better catch

Step-by-step explanation:

From the question we are told that

     The  population mean for trout is  \mu_1  =  12 \ in

     The  standard deviation is  \sigma_1  =  2.75  \  in

      The  population mean for  base  is  \mu _2  =  4 \ lb

      The standard deviation is  \sigma_2  =  0.8 \ lb

      The number of  trout caught   x_1  =  18

     The number of  bass caught  x_2  =  6

Generally z-value(standardized value ) for the of number  trout caught  is mathematically represented as

        z_1 = \frac{x_1 -  \mu_1}{\sigma_1 }

substituting value

       z_1 = \frac{18 -  12}{2.75 }

       z_1 = 2.18

Generally z-value(standardized value ) for the of number  bass caught  is mathematically represented as

        z_2 = \frac{x_2 -  \mu_2}{\sigma_2 }

substituting value

       z_2 = \frac{6 -  4}{0.8 }

       z_2 = 2.5

From our calculation we see that  z_2 >  z_1

The  fish that was the better catch is the bass fish

3 0
3 years ago
A pure acid measuring x liters is added to 300 liters of a 20% acidic solution. The concentration of acid, f(x), in the new subs
Nitella [24]

Answer How many liters of a 20% acid solution should be mixed with 30 liters of 50% acid solution in order to obtain a 40% solution. ... x=15 liters 15*(.20 pure acid)=3 liters 30*(.50 pure acid)=15 liters That is 18 liters pure acid That is 45 liters solution *0.45 pure acid=18 liters.

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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