6 + (-3) would be the same as just saying 6-3 which would be equal to positive 3
Answer:
23+19+27+x = 96
x > 27
not sure if the answer can be left that way or do you assume that test results are whole numbers, if so then the answer would b=have to be 28.. but I think that >27 is the answer expected
Step-by-step explanation:
Answer:
-20 and 6
Step-by-step explanation:
-20 x 6 = -120
and if you add -20 and 6, you get -14.
Answer:

Step-by-step explanation:
Hypotenuse = x
Base = 4
Perpendicular = 
<u>Using Pythagoras Theorem:</u>
![\sf H^2 = P^2 + B^2\\\\ x^2 = (\sqrt{84} )^2 + (4)^2\\\\x^2 = 84 + 16\\\\x^2 = 100\\\\Taking \ sq \ root \ on \ both \ sides\\\\x = 10\\\\\rule[225]{225}{2}](https://tex.z-dn.net/?f=%5Csf%20H%5E2%20%3D%20P%5E2%20%2B%20B%5E2%5C%5C%5C%5C%20x%5E2%20%3D%20%28%5Csqrt%7B84%7D%20%29%5E2%20%2B%20%284%29%5E2%5C%5C%5C%5Cx%5E2%20%3D%2084%20%2B%2016%5C%5C%5C%5Cx%5E2%20%3D%20100%5C%5C%5C%5CTaking%20%5C%20sq%20%5C%20root%20%5C%20on%20%5C%20both%20%5C%20sides%5C%5C%5C%5Cx%20%3D%2010%5C%5C%5C%5C%5Crule%5B225%5D%7B225%7D%7B2%7D)
Hope this helped!
<h3>~AH1807</h3>
Answer:
Margin of Error = 1.96
7.75 = 15.19
Step-by-step explanation:
i) Margin of Error of a population with a standard deviation of 7.75?
ii) Let us assume a two tailed test with a 95% confidence interval
iii) 
iv) therefore Margin of Error = 1.96
7.75 = 15.19