T = 2.5h
l = t + 1.6
l = 2.5h + 1.6
5.2 = 2.5h + 1.6
5.2 - 1.6 = 2.5h
3.6 = 2.5h
3.6 / 2.5 = h
1.44 = h <===== length of head is 1.44 meters
x(2x²+4x-1) is your answer.Hope this helps. :)
Answer:
=540
Step-by-step explanation:
To get the answer all we have to do is convert the scientific notation into a regular one. We can do this by moving the decimal place depending on what the power is.
In this case, the power/exponent/the number raised, whatever you would call it is 2, so we are going to move it to two places.
Hope this helps!!
The table that represents the survey conducted by Isabel is:
Like Dolls Don't like Dolls Total
Like Trains 40 15 55
Don't like Trains 17 8 25
Total 57 23 80
<h3>How can the table be filled? </h3>
The total number of kids that like dolls = total number kids - total number of kids that don't like dolls
80 - 23 = 57
Number of kids that don't like Trains but like dolls = total number kids that like dolls - Number of kids that like Trains and dolls
57 - 40 = 17
Number of kids that don't like dolls and but like trains :
30% x 23 = 7
(23 - 7) /2 + 7 = 15
Number of kids that don't like dolls and trains = (23 - 7) / 2 = 8
To learn more about two way frequency tables, please check: brainly.com/question/27344444
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Answer:
x = -3 + 
, -3 -
Step-by-step explanation:
Step 1: Isolate <em>x</em>'s
2x² + 12x = 7
Step 2: Factor
2(x² + 6x) = 7
x² + 6x = 7/2
Step 3: Complete the Square
x² + 6x + 9 = 7/2 + 9
(x + 3)² = 25/2
Step 4: Solve for <em>x</em>
√(x + 3)² = √25/2
x + 3 = 5√2/2
x = -3 ± 5√2/2
