-23.2 I think this is the answer
Answer:
28/5=x and y= -6/5
Step-by-step explanation:
solve by substitution
3x+4y=12
Rewrite equations:
2x+y=10;3x+4y=12
Step1: Solve 2x+y=10 for y:
2x+y=10
2x+y+−2x=10+−2x(Add -2x to both sides)
y=−2x+10
Step2: Substitute−2x+10 for y in 3x+4y=12:
3x+4y=12
3x+4(−2x+10)=12
−5x+40=12(Simplify both sides of the equation)
−5x+40+−40=12+−40(Add -40 to both sides)
−5x=−28
-5x/-5=-28/5
(Divide both sides by -5)
x= 28/5
Step3: Substitute
28/5 for x in "y=−2x+10":
y=−2x+10
y=−2(28/5)+10
y=-6/5(Simplify both sides of the equation)
Hope this helps!
Answer:
A. 346.19 square feet.
Step-by-step explanation:
We have been given that a contractor has been hired to install flooring for a bandstand in the shape of a circle that is 21 feet across.
To find the square feet of flooring required, we will find area of circle.
Since the length across the circle is 21 feet, so radius of circle will be half of 21 feet.
Therefore, 346.19 square feet of flooring will be required.
Answer:
Left 4 units
Step-by-step explanation:
h(x) is a line with slope 2. Let's say it has y-intercept b. So:
h(x) = 2x + b
d(x) is h(x) shifted up 8 units. So:
d(x) = h(x) + 8
d(x) = 2x + b + 8
We want to shift h(x) left or right to get d(x). If we say that shift is a units to the right, then:
h(x−a) = d(x)
2(x−a) + b = 2x + b + 8
2x − 2a + b = 2x + b + 8
-2a = 8
a = -4
a is negative, so the shift is to the left.
h(x) should be shifted to the left 4 units.
y = 5.5x + 29
hope that was that you were looking for
