MATHEMATICS HIGH SCHOOL

Find the product mentally.
(2m - 9)^2

Answers

Answer 1
Answer: - - Solve:

=2m+-9*2m+-9
2m*2m+2m*-9+-9*2m+-9*-9
4m^2-18m-18m+81
4m^2-36m+81

Your final answer is 4m^2−36m+81
Answer 2
Answer: Use the formula: (a-b)² = a² -2ab + b²

(2m-9)² = (2m)² - 2(2m)(9) + 9²

= 4m² - 36m + 81

Related Questions

Jabari owns 100 shares of Stock A and 45 shares of Stock B. For the past month, his stocks have been fluctuating inversely each week. Stock A decreased by m cents per share and Stock B increased by n cents per share. Which equation can be used to find the total change in value of Jabari's shares?
Find the area of the parallelogram by composing into rectangles or decomposing into triangles or other shapes as needed. 8 yd 6 yd 15 yd10 yd​
Find the balance after 8 years
Does someone know how to solve this problem?
X+3y=14 6x+3y=-6 is there a possible solution?

What is the approximate circumference of a circle with a radius of 40 inches? Use π ≈ 3.14.A.
125.6 inches

B.
251.2 inches

C.
502.4 inches

D.
5024 inches

Answers

To find cirfumfrence we use the formula C = 2 \pi r
Soooo
\pi = 3.14
r = 40 inches
So now we plug it in :P
C = 2 x 3.14 x 40 = 251.2 
answer = B.) 251.2 inches 

AC and BD are perpendicular bisectors of each other. Find the perimeter of ADB. A. 60
B. 52
C. 30
D. 50

Answers

I think it is C. 30
I hope it is right?

Madison’s plant was 10 7/8 inches tall. She trimmed off 2 1/4 inches. How tall is her plant now?thx
edited

Answers

Answer:

Madison's plant is now 8 5/8 inches tall.

Step-by-step explanation:

Find the interquartile range of these data.

5, 12, 9, 8, 6, 2, 6

Answers

Answer: 7

Step-by-step explanation:

In a sale, there is 50% off all prices. A chair costs £17.50 in the sale. How much was it before the sale?

Answers

do 17.50 * 2 and youll get the answer so 17.50 * 2 is 35
£17.50 is 50% of what number
Now the same in math:
£17.50 = .50 x n pr £17.50 = .5n
Divide both sides by .5
n= £ 35

Ile to 12308+11093=??????pomóżcie

Answers

Answer:

Twoja odpowiedź brzmi 23401.

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