Answer:
![6\frac{3}{4}\ ft](https://tex.z-dn.net/?f=6%5Cfrac%7B3%7D%7B4%7D%5C%20ft)
Step-by-step explanation:
we know that
To find out how long is Ms.Smith’s bulletin board, multiply Mrs . Porcelli’s bulletin board by 3
so
![2\frac{1}{4}(3)](https://tex.z-dn.net/?f=2%5Cfrac%7B1%7D%7B4%7D%283%29)
but first convert mixed number to an improper fraction
so
![2\frac{1}{4}\ ft=2+\frac{1}{4}=\frac{9}{4}\ ft](https://tex.z-dn.net/?f=2%5Cfrac%7B1%7D%7B4%7D%5C%20ft%3D2%2B%5Cfrac%7B1%7D%7B4%7D%3D%5Cfrac%7B9%7D%7B4%7D%5C%20ft)
substitute
![\frac{9}{4}(3)=\frac{27}{4}\ ft](https://tex.z-dn.net/?f=%5Cfrac%7B9%7D%7B4%7D%283%29%3D%5Cfrac%7B27%7D%7B4%7D%5C%20ft)
convert to mixed number
![\frac{27}{4}\ ft=\frac{24}{4}+\frac{3}{4}=6\frac{3}{4}\ ft](https://tex.z-dn.net/?f=%5Cfrac%7B27%7D%7B4%7D%5C%20ft%3D%5Cfrac%7B24%7D%7B4%7D%2B%5Cfrac%7B3%7D%7B4%7D%3D6%5Cfrac%7B3%7D%7B4%7D%5C%20ft)
-69= 7v-6 so v equals 74 or something
Answer:
The answer would actually be 9,900
I’ll assume the c is b. (1/2) x (5) x (2) x (2) is 10
Answer:
2nd option
Step-by-step explanation:
Given
3x³ - 15x² - 4x + 20
step 1 ( group the first/second and third/fourth terms )
(3x³ - 15x² ) + (- 4x + 20)
step 2 ( factor each group )
3x² (x - 5) - 4(x - 5) ← note factor of - 4 ( not + 4 )
step 3 ( factor out (x - 5) from each term )
(x - 5)(3x² - 4)