Answer:
Step-by-step explanation:
your basically multiplying everything in the first parenthesis by everything in the second parenthesis
(x + 4y + z)(x - 7y) =
x(x - 7y) + 4y(x - 7y) + z(x - 7y) =....keep in mind, 4yx is the same as 4xy
x^2 - 7xy + 4xy - 28y^2 + zx - 7zy....combine like terms
x^2 - 3xy - 28y^2 + zx - 7zy <---- your answer
this is the distributive property
Lower quartile (xL): 68
Upper quartile (xU): 88
Interquartile range (xU-xL): 20
What grade are you?
i can hopple u
The area of the page = 11.7 x 8.5 = 99.45 square inches
divide the number of word by the area:
375 / 99.45 = 3.77 words per square inch ( round answer as needed)
To find the area<span> of a </span>triangle<span>, multiply the base by the height, and then divide by 2. The division by 2 comes from the fact that a parallelogram can be divided into 2 triangles. For example, in the diagram to the left, the </span>area<span> of each </span>triangle<span> is equal to one-half the </span>area<span> of the parallelogram. their is your answer </span>
