Answer:
33
Step-by-step explanation:
3∙[ 9 – 2∙ (7 – 8)]
PEMDAS,
Parentheses, start from the inside out
3∙[ 9 – 2∙ (-1)]
3∙[ 9 +2]
3* 11
33
Answer:
Step-by-step
i) a² - 2ab + b² = (a + b)²
a² = p² ; a = p
b² = 16 = 4² ; b = 4
2ab = 2*p*4 = 8p
p² - 8p + 16 = (p - 4)²
ii) a² + 2ab + b² = (a +b)²
a² = 121x² = (11x)² ; b² = 4y² = (2y)²
2ab = 2 * 11x * 2y = 44xy
121x² + 44xy + 4y² = (11x + 2y)²
Answer:
First step, add 11 to 44.
Step-by-step explanation:
After that, divide both sides by negative 3.
Wren's bedroom is 12 feet long x 10 feet wide. She plans to purchase carpet for the entire room. The carpet costs $25 per square meter. What are the dimensions in meters? Round each to nearest tenths place.
There are 3.28084 feet in a meter.
12*3.28084=39.30078
10*3.28084=32.8084
Length:39.3
Width:32.8
