What is the value of the expression (25 + 8)^2 - (8^2 +25^2)?

2 answers:

6 0

Answer: 400

(25 + 8)^2 − (8^2 + 25^2)

= (33)^2 − (64 + 625)

= 1089 − 689

= 400

Remember:

•follow the BEDMAS or PEDMAS rule
•always go from left to right

Note: the steps could’ve been broken down further but since working on the right side won’t change the left side, in this case, it was just a faster way of showing the results.

ioda2 years ago

5 0

Step-by-step explanation:

Answer = 2(25)(8) = 400.

You might be interested in

How much water should be added to 3 gallons of pure acid in order to obtain the 15% acid solution? HELP DUE BY TOMMOROW MORNING

Pani-rosa [81]

3 gallons of acid = 100% concentration acid
? (water+acid) gallons = 15 concentration acid

Note: Every gallon of water added reduces the percentage concentration of acid. Therefore, the relationship is inverse proportionality.

Solution:

Total number of gallons (water+acid) = (3*100)/15 = 20 gallons
Therefore, gallons of water = 20-3 = 17 gallons

5 0

2 years ago

Round the digit greater than 10, and estimate the answer.<br> 8,572 x 7=<br> P

luda_lava [24]

Answer:

60000

Step-by-step explanation:

8572x7= 60004...

Rounded to the nearest 10 (Which I assume you wanted to happen) is: 60000

[If I am wrong I am very sorry, please message me]

6 0

2 years ago

Which of the following is the best estimate of 3/8

defon

Answer:

Step-by-step explanation:

3/8 is closest to 1/2 yw btw

6 0

1 year ago

Graph the line with slope – 2 passing through the point (-5,5).

34kurt

Answer:

y = -2x - 5

Step-by-step explanation:

y = -2x + b

- To find the y-intercept, plug the values of the variables.

5 = -2(-5) + b

5 = 10 + b

- Subtract 10 from both sides.

-5 = b

3 0

2 years ago

Solve by completing the square 4x^2-30=12+10x

natali 33 [55]

16x - 30 = 12 + 10

6x = 42

x = 7

5 0

3 years ago