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nignag [31]
3 years ago
7

Help please!! How do I solve this

Mathematics
1 answer:
egoroff_w [7]3 years ago
5 0
This is an exponential equation. We will solve in the following way. I do not have special symbols, functions and factors, so I work in this way
 2 on (2x) - 5 2 on x + 4=0 =>. (2 on x)2 - 5 2 on x + 4=0  We will replace expression ( 2 on x) with variable t => 2 on x=t  =. t2-5t+4=0 => This is quadratic equation and I solve this in the folowing way => t2-4t-t+4=0 =>     t(t-4) - (t-4)=0 => (t-4) (t-1)=0 => we conclude t-4=0 or t-1=0 => t'=4 and t"=1 now we will return t' => 2 on x' = 4 => 2 on x' = 2 on 2 => x'=2 we do the same with t" => 2 on x" = 1 => 2 on x' = 2 on 0 => x" = 0 ( we know that every number on 0 gives 1). Check 1: 2 on (2*2)-5*2 on 2 +4=0 =>                   2 on 4 - 5 * 4+4=0 => 16-20+4=0 =. 0=0 Identity proving solution. 
Check 2:   2 on (2*0) - 5* 2 on 0 + 4=0 => 2 on 0 - 5 * 1 + 4=0 => 
1-5+4=0 => 0=0  Identity provin solution.
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7
madreJ [45]

Answer:

72 pounds of water.

Step-by-step explanation:

60% of 120= 72.

120 x 60% = 72

I hope this answer helps! :D

7 0
3 years ago
30 points if correct. Select all the are true.
ivann1987 [24]

Answer:

Options B,C and E are correct choices.

Step-by-step explanation:

We are asked to find correct answers for the given box and whisker plots.

Let us our options one by one.

A. This option is false as lowest value for children's cereals is 30 and highest value for adults is 35.

B. This option is correct. We can see our upper value for combined range will be 60 and lower value will be 5 and range is upper value- lower value.

60-5=55

C. Since we know that we can find spread of data by its range.

\text{Range for children's cereals}=60-30=30

\text{Range for adult's cereals}=60-30=30

So option C is correct indeed.

D. This options is false because for adults mean and median are different while for children mean and median are same.

E. We can see that median for children's cereals is 45 and it is about 12 for adults.

We can see that 12*3. So median amount of sugar in children's cereals is 3 times as much as the median amount of sugar in adult's cereals.

Therefore, options B,C and E are correct choices.


4 0
3 years ago
Shelly's age plus Mary's age is less than 36. Mary is 15 years old. Write the equation thatrepresents the problem.
lord [1]

sorry I answered wrongly

4 0
3 years ago
Read 2 more answers
Find the product. (y^2)^5 · y 8
storchak [24]
(y^2)^5 *y^8 = y^10 *y^8 = y^18

hope this will help you 
7 0
2 years ago
Read 2 more answers
ANSWER the MATH problem if you love yo mama (ill give brainliest)
kogti [31]

Answer:

The first one is 7 and the second one is 8.

Step-by-step explanation:

5 0
2 years ago
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