Answer:
24cm_2
Step-by-step explanation:
h=hbb
2
b= base
hb= height
and that is how u get... A= 24cm_2
Answer:
It is 23
Step-by-step explanation:
BC= FE
(x-4)=19
Therefore x= 23
Answer:
A
Step-by-step explanation:
Answer:
Step-by-step explanation:
y = 1/8x - 1.....sub this back in for y in the other equation
-5x + 4y = -13
-5x + 4(1/8x - 1) = -13
-5x + 1/2x - 4 = -13.....multiple everything by 2 to get rid of the fraction
-5x(2) + 1/2x(2) - 4(2) = -13(2)
-10x + 1x - 8 = - 26
- 9x = -26 + 8
-9x = - 18
x = 18/9
x = 2.....now sub 2 in for x in either of the original equations to find y
y = 1/8x - 1
y = 1/8(2) - 1
y = 1/4 - 4/4
y = -3/4
so ur solution is : (2,-3/4) <===
Answer:
B. 3.
Step-by-step explanation:
OK lets try again.
The slope of the secant = slope of the tangent at a certain point ( The Mean Value Theorem).
Slope of the secant = f(5) - f(2) / (5 - 2)
= [(25-3) / (5-1) - (4-3) / (2-1)] / 3
= (22/4 - 1) / 3
= 9/2 / 3
= 9/6
= 3/2.
The derivative at c = the slope of the tangent at c.
Finding the derivative:
f'(x) = [2x(x - 1) - (x^2 - 3) ]/ (x - 1)^2 (where x = c).
= (x^2 - 2x + 3)/ (x - 1)^2 = the slope.
So equating the slopes:
(x^2 - 2x + 3) / (x - 1)^2 = 3/2
2x^2 - 4x + 6 = 3x^2 - 6x + 3
x^2 - 2x - 3 = 0
(x - 3)(x + 1) = 90
x = 3 , -1
x can't be -1 because we are working between the values 2 and 5 so
x = c = 3.
