Evaluate the expression when b=6. b²-7b+9

Mathematics

2 answers:

katen-ka-za [31]4 years ago

6 0

Answer:

Step-by-step explanation:

Dmitriy789 [7]4 years ago

6 0

Answer:

${b}^{2} - 7 b + 9 \\ {6}^{2} - (7 \times 6) + 9 \\ 36 - 42 + 9 \\ - 6 + 9 \\ 3$

You might be interested in

Stephan is planning a hiking trip at Kings Canyon National Park. He plans to hike 14 miles every 2 days. If he hikes 42 miles, h

Stels [109]

Well for THIS one you'd have to find how many miles he hikes in ONE day, so you would divide 14 by 2 to get 7 miles per day, and to find how many days he hiked in 42 miles, just divide 42 divided by 7 which equals 6, so it took him 6 days to hike 42 miles. =)
I hope I helped! =D

8 0

3 years ago

A page should have perimeter of 42 inches. The printing area within the page

Tamiku [17]

Overall dimensions of the page in order to maximize the printing area is page should be 11 inches wide and 10 inches long .

<u>Step-by-step explanation:</u>

We have , A page should have perimeter of 42 inches. The printing area within the page would be determined by top and bottom margins of 1 inch from each side, and the left and right margins of 1.5 inches from each side. let's assume width of the page be x inches and its length be y inches So,

Perimeter = 42 inches

⇒ $2(x+y) = 42\\x+y = 21\\y = 21-x$