4-8=-4 olaá!! .....ANSWER
Answer:
see explanation
Step-by-step explanation:
The hypotenuse is the longest side thus is (4x + 1)
The legs are 2x and (4x - 1)
Using Pythagoras' theorem, then
(4x + 1)² = (2x)² + (4x - 1)² ← expanding factors
16x² + 8x + 1 = 4x² + 16x² - 8x + 1 , that is
16x² + 8x + 1 = 20x² - 8x + 1 ( subtract 20x² - 8x + 1 from both sides )
- 4x² + 16x = 0 ( multiply through by - 1 )
4x² - 16x = 0 ← factor out 4x from each term
4x(x - 4) = 0
Equate each factor to zero and solve for x
4x = 0 ⇒ x = 0
x - 4 = 0 ⇒ x = 4
Now x > 0, thus x = 4
2x = 2(4) = 8
4x - 1 = 4(4) - 1 = 16 - 1 = 15
4x + 1 = 4(4) + 1 = 16 + 1 = 17
Thus
perimeter = 8 + 15 + 17 = 40 cm
Answer:
she worked for 4.5 hours
Step-by-step explanation:
she gets 10 an hour
45/10=4.5
Answer:
33.6
Step-by-step explanation:
The following data set shows the numbers of hours that employees at a certain shop worked in one week
34 36 32 40 39 17 35 33 36 34
The mean is the average of the numbers. It is easy to calculate - add up all the numbers, then divide by how many numbers there are.
Hence,
Answer:
110 mm
Step-by-step explanation:
There are 10 millimeters in a centimeter. So multiply 11 and 10. The answer is 110.