Answer:
12. $65.90, 13. 36.04cm
Step-by-step explanation:
12. the circumference of the circle is 2pi*r. lets say x is the circumference so x = 2*pi*3.8 = 23.876m. multiply x by 2.76 to get 65.898, round to get 65.90
13. the area of a circle is pi*r^2. the area of the pizza is 12*85=1020cm^2. divide by pi to get 324.676 cm^2. then find the square root to get r=18.019 cm. the diameter = 2r so multiply by 2 to get 36.038cm. I'm not sure what the problem wants to round to so you can round it yourself.
note: for these two problems i used the full pi instead of 3.14. using 3.14 will give you a different answer so it just depends. If the problem wants you to use 3.14, simply resolve the problems and use 3.14 instead of pi wherever required.
answer:
-2x + 9 or -2 which is what the question asks
step-by-step explanation:
- we have to combine like terms which means terms that are similar
- in this, only 5x and -7x are like terms since both have x with them
- 9 will stay the same since it does not have a like term
5x + 9 + (-7x) = __x + 9
-2x + 9
- therefore, -2 goes in the blank
Step-by-step explanation:
If a triangle is rotated 90° about the origin.
The rule that describes the transformation is
(x, y) → (–y, x)
Answer:
66
Step-by-step explanation:
you find the difference of 114 and 48 then thats youre third angle
Answer:
22 miles
Step-by-step explanation:
Given data
A towing company charges $50 plus $4 per mile
let the number of miles be x
the expression for the charges for x miles y is given as
y= 50+4x
for y= 138
138= 50+4x
138-50= 4x
88= 4x
x= 88/4
x= 22 miles
Hence the distance is 22 miles