Answer:
GCF: x^5y
Step-by-step explanation:
4x^5 y^12 = x^5y (4y^11)
x^15 y = x^5y (x^10)
8x^10 y^8 = x^5y (x^5y^7)
So
GCF of 4x^5 y^12 - x^15 y + 8x^10 y^8 = x^5 y
The first option,
both have to be negative, because they were originally both part of the one fraction, which was all negative.
Answer: D = -8
Step-by-step explanation:
combine like terms
Answer:
Stratified design with color of paper as the blocks
Step-by-step explanation:
The experimental design that this question uses is the stratified design with color of paper as the blocks
A stratified design is one where the population has been divided into strata that are homogeneous. A good number of participants would then be picked for each of the stratum. The homogeneous strata are also known as the blocks and here in this question we have color of paper as the block here.
The students are of different school levels, elementary, high school and middle school. Each of these levels have 100 students. The students in each levels are halved and each half is randomly assigned information on either a white paper or a blue paper.
