Answer:
D. Triangle is correct
Step-by-step explanation:
We are given that,
A polygon is rotated to form the blue block patterns,
As, from the figure, we see that,
The polygon being rotated has three sides.
So, the polygon is a triangle.
Thus, a triangle is rotated to form the blue block pattern.
Hence, option D is correct.
Answer:
The answer is D) Triangle
joe correctly answered 70% of the questions on a test. there were 50 questions. how many questions did joe answer correctly?
A. (8x + 7)(2x-7)
O B. (4x + 7)(4x - 7)
O C. (8x-7)(2x-7)
O D. (4x-7)(4x-7)
Answer:
B
Step-by-step explanation:
16 x² - 49 ← is a difference of squares and factors in general as
a² - b² = (a + b)(a - b), thus
16x² - 49
= (4x)² - 7²
= (4x + 7)(4x - 7) → B
Answer:
B
Step-by-step explanation:
There is no number between 16x and 49. So only think about the number being squared for 49; which is 7.
Then 49 is negative, so you must have both positive and negative signs in both parenthesis. Otherwise, positive times positive is positive, and negative times negative is also positive.
4x4 is 16. That's why you put fours in front of Xs.
I am sorry for getting this wrong (if i did)
can you PLEASE show in words and explain your answer i need help!
Answer:
90
Step-by-step explanation:
we have:
9*(7-4)^2+9
we subtract 7 and 4: 7-4
we have:
9*(3)^2+9
we know: 3^2=3*3=9
so we have:
9*9 +9
we multiply 9 by 9: 9*9 = 81, so we have:
81+9
90
Answer:
Step-by-step explanation:
To solve this problem, first you have to use the order of operations stands for parenthesis, exponents, multiply, divide, add, and subtract numbers from left to right. Please Excuse My Dear Aunt Sally!
First, parenthesis.
(7-4)=3
9*3²+9
Next, exponent.
3²=3*3=9
9*9+9
Then, multiply numbers from left to right.
9*9=81
Add numbers from left to right.
81+9=90
Therefore, the correct answer is 90.