It is -10 because the symbols r not the same so it is negative
Answer: C. 13 + 8x = 45
Step-by-step explanation:
She already has 13 dollars. This would be the b-value in the equation, thus eliminating options A and B because those two feature 13 as the m value.
She earns $8 per hour. Let x = number of hours walking dogs.
Since 8 is the slope, it would be attached to x, thus either C or D would be the correct response
Since Grace is adding 8 dollars per hour, not subtracting, D is incorrect, leaving C to be the correct answer.
The directions are fairly straightforward. They are asking you to plot the two curves on a graph and find the coordinates of the point of intersection.
After 7 years, the number of birds of each species during that year will be 140.
Step-by-step explanation:
a)
put the formula....
l × b = A
or,
or,
or,
Therefore,
b)
we know the value of x,
l = 4x-3 b = x+2
= 4× 11 -3 = 11+2
= 41cm = 13cm
Area= l × b
= 41 × 13
= 533 cm^2
c)
square = l × l
Given,
121x^2 - 22x + 1
or, 121x^2 -11x -11x +1
or, 11x ( 11x -1 ) - 1 ( 11x -1 )
Therefore,
dimension is ( 11x-1 )( 11x -1 )
d) x= 25
l= 11x -1
= 11× 25 -1
= 274cm
Area= l^2
= 75076 cm^2
Area of frame = (12cm)^2
= 144cm^2
Area of painting= ( 1225-144 )cm^2
= 1081 cm^2
(length)^2 = Area
or, l^2 = (1081)
or 1^2 = (32.8)^2
Therefore, dimension of painting is 32.8cm