- 5 r - 6 = - 26 for r = 4
- 5 * ( 4 ) - 6 = - 26
- 20 - 6 = - 26
- 26 = -26
B) true
hope this helps!
Answer:
Yes
Step-by-step explanation:
Substitute the x and y values in for x and y to check.
-1 = 7 - 8
-1 = -1
In this instance, (7, -1) is a solution of y = x - 8.
Answer:
Option B. ![6.75\ cm^{2}](https://tex.z-dn.net/?f=6.75%5C%20cm%5E%7B2%7D)
Step-by-step explanation:
we know that
The area of a circle is equal to
![A=\pi r^{2}](https://tex.z-dn.net/?f=A%3D%5Cpi%20r%5E%7B2%7D)
we have
![r=3\ cm](https://tex.z-dn.net/?f=r%3D3%5C%20cm)
substitute
![A=\pi (3^{2})=9 \pi\ cm^{2}](https://tex.z-dn.net/?f=A%3D%5Cpi%20%283%5E%7B2%7D%29%3D9%20%5Cpi%5C%20cm%5E%7B2%7D)
Remember that
radians subtends the complete circle of area ![9 \pi\ cm^{2}](https://tex.z-dn.net/?f=9%20%5Cpi%5C%20cm%5E%7B2%7D)
so
by proportion
Find the area of the related sector for a central angle of
radians
Let
x------> the area of the related sector
![\frac{9 \pi}{2\pi}\frac{cm^{2}}{radians} =\frac{x}{1.5}\frac{cm^{2}}{radians}\\ \\x=9*1.5/2\\ \\x= 6.75\ cm^{2}](https://tex.z-dn.net/?f=%5Cfrac%7B9%20%5Cpi%7D%7B2%5Cpi%7D%5Cfrac%7Bcm%5E%7B2%7D%7D%7Bradians%7D%20%3D%5Cfrac%7Bx%7D%7B1.5%7D%5Cfrac%7Bcm%5E%7B2%7D%7D%7Bradians%7D%5C%5C%20%5C%5Cx%3D9%2A1.5%2F2%5C%5C%20%5C%5Cx%3D%206.75%5C%20cm%5E%7B2%7D)
total would be 735 dollars mark me as brainliest please.
Answer:
he used 12 chocolate chips