Sin ( theta ) = opposite / hypotenuse
sin ( 37° ) = 13 / x
Answer:
x = 4 and -10
Step-by-step explanation:
Given the equation
x²+6x-40= 0
The common factors to use for the factorisation are +10 and -4
x²+(10x-4x)-40=0
(x²+10x)-(4x-40) = 0
x(x+10)-4(x+10) = 0
(x-4)(x+10) = 0
x-4 =0 and x+10 = 0
x = 4 and x = -10
Answer:
Center is the mean, an average of data. Spread is for range and standard deviation.
Step-by-step explanation:
If you only have 3 point problems you have a total of 3*30=90 points, since the test has 100 points you need 10 extra points, so 10 of those 3 point questions have to be changed to 4 point questions.
So 20 3-point questions and 10 4-point questions.
It is D) 14 Units because it takes seven units to get from -7 to zero and 7 units to get from 0 to 7. there fore 7+7=14.
