jerragroce jerragroce

23-08-2017
Mathematics

contestada

What is the best estimate for the product of 289 and 7

Respuesta :

latashacmoore latashacmoore

23-08-2017

I would estimate it as (300 x 7) = 2100

Then I would subtract (11 x 7) + 77 from that to get the exact answer of 2023

~~~~~~~~~~
I didn't use a calculator or paper. The 'trick' is to notice that 289 = (300 - 11)

Answer Link

Otras preguntas

George is buying watermelon and pineapples to make fruit salad. He buys w watermelon at 4.49 each and p pineapples at $5 each. What does the expression 4.49w+ 5

Approximately how long ago did the last of the great north american ice sheets melt?

Which is A Prime Number? A)7 B)33 C)27 D)63

A chemist isolates an element that is suspected to have a principal quantum number equal to 5. What is the maximum number of electrons that can occupy this leve

When dating couples wrestle with conflicts, those partners with a(n) ________ tend to see each other as engaging constructively?

HELP ASSAPP WITH THIS QUESTION

In the nineteenth century, euclidean geometry was finally disproved when the fifth postulate was more closely examined.a. trueb. false

What is the value of 8 in the following number? 782,305,964

20 points!!! ppppppppllllllllllleeeeeeeeeeaaaaaaaassssssssseeeeeeeeeee hhheellpp 1.After the Boston Tea Party, the British government closed the port of Bosto

Which major somatic sensory pathway carries proprioceptive input from golgi tendon organs, muscle spindles, and joint capsules?