Ming made a triangular picture frame out of cardboard. The sides of the frame are 6.75 in., 6.75 in., and 8.375 in. Ming uses the addition below to determine the amount of string she needs to decorate the edges of the frame.675 + 675 + 8.375 = 9.725. The 675 values are lined up with the 375 portion of 8.375.Which explains Ming’s error?She should have included the decimal in 6.75 and aligned the decimal points to add 6.750 + 6.750 + 8.375 = 21.875.She forgot to put the decimal point in two of the numbers: 0.675 + 0.675 + 8.375 = 9.725..She added 6.75 twice, and she should have only added it once: 6.75 + 8.375 = 15.125.She should have placed a zero placeholder after the decimal point to add 6.075 + 6.075 + 8.375 = 20.525.

i leave the calculator work to you.

7. diameter 4 miles, circumference 4π miles

8. radius 0.2 miles, circumference 0.4π miles

[this is a bad problem because the actual radius of a car on the track is less than 0.2 miles so the answer is less than 0.4π miles]

9. radius 6 feet, circumference 12π feet

10. diameter 14 cm, circumference 14π cm

11. diameter 4.8 feet, circumference 4.8π feet

the infinity sign

step-by-step explanation:

(sin 42)/31. = sinx)/37

sinx = 37 (sin42)/31

= 37× 0.66/31 = 0.787

x= 51.9

other angle opposite to y = 180-51.9-42

= 180- 93.9 =86.1

so

sin42)/31 = sin 86.1)/y

0.021 = 0.997 /y

y= 0.997/0.021 =47.47

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value