Answer:
first option
Step-by-step explanation:
x = 0.20*350000
because down payment is 20% of 350000
![\frac{20}{100}=0.20](https://tex.z-dn.net/?f=%5Cfrac%7B20%7D%7B100%7D%3D0.20)
So, x = 0.20*350000
Answer:
The perimeter is the distance around the triangle. Given the ratio, the perimeter using the ratio is;
= 3 + 4 + 5
= 12 units
a. <u>12 units</u> = 240 cm
The perimeter in centimetres is 240cm and in ratio is 12 units so they are equivalent.
b. <u>1 unit </u>= 20 cm
If 12 units are to 240 cm, 1 unit is;
= 240/12
= 20 cm
c. Length of red side;
Red side has length of 5 units. 1 unit is 20 cm.
Length in cm is;
= 5 * 20
= 100 cm
Answer: 1) ![\pm \sqrt{x+4}](https://tex.z-dn.net/?f=%5Cpm%20%5Csqrt%7Bx%2B4%7D)
2) see graph
3) Choose one color from the graph
4) D: x ≥ -4
R: y ≥ 0 for
or y ≤ 0 for
<u>Step-by-step explanation:</u>
1) To find the inverse, swap the x's and y's and solve for y:
Given: y = x² - 4
Swap: x = y² - 4
x + 4 = y²
![\pm \sqrt{x+4}=y](https://tex.z-dn.net/?f=%5Cpm%20%5Csqrt%7Bx%2B4%7D%3Dy)
2) see attachment. Red and Blue combined creates the graph of the inverse.
3) Choose either the positive (red graph) or the negative (blue graph).
red graph: ![y= \sqrt{x+4}](https://tex.z-dn.net/?f=y%3D%20%5Csqrt%7Bx%2B4%7D)
blue graph: ![y= -\sqrt{x+4}](https://tex.z-dn.net/?f=y%3D%20-%5Csqrt%7Bx%2B4%7D)
4) Domain reflects the x-values of the function. The x-values for the red graph is the same as the blue graph so the answer will be the same regardless of which equation you choose.
Domain: x ≥ 0
Range reflects the y-values of the function. The y-values differ between the positive and negative inverse functions. <em>Positive is above the x-axis. Negative is below the x-axis.</em>
Range (red graph): y ≥ 0 for ![y= \sqrt{x+4}](https://tex.z-dn.net/?f=y%3D%20%5Csqrt%7Bx%2B4%7D)
Range (blue graph): y ≤ 0 for
X = number of people
3.50x + 5.50x + 6 = 51
9x + 6 = 51
9x = 51 - 6
9x = 45
x = 45/9
x = 5....there were 5 people in the family that attended the fair