3 years ago

Simplify: -3^2+8÷2×4-|-9|

1 answer:

8 0

Follow the order of operations. Evaluate absolute value first.
-3^2+8/2*4-9

Then evaluate exponents
9+8/2*4-9

Then evaluate multiplication and division from left to right
9+4*4-9
9+16-9

Then evaluate addition and subtraction from left to right
25-9
16

Final answer: 16

You might be interested in

A bag contains 5 red marbles, 3 white marbles, and 4 blue marbles. what is the probability of randomly selecting a red marble, s

Dennis_Churaev [7]

Total number of marbles=5+3+4=12
Probability of picking a red marble =5/12

5 0

3 years ago

find the x-intercepts of the parabola with vertex (1,20) and y-intercept (0,16) write your answer in this form

bagirrra123 [75]

Hello here is a solution :

4 0

3 years ago

Estimate the sum.<br><br> 6 13/28+ 8 3/32

umka2103 [35]

The estimated sum is 1.75

5 0

3 years ago

Read 2 more answers

If a tower casts a shadow 11 feet long the distance from the top of the tower to the end of the shadow is 61 feet .. How many fe

Svetach [21]

$Use\ the\ Pythagoras\ Theorem:\\\\H^2+11^2=61^2\\\\H^2+121=3721\ \ \ \ |subtract\ 121\ from\ both\ sides\\\\H^2=3600\\\\H=\sqrt{3600}\\\\\boxed{H=60}\\\\Answer:Tower\ is\ 60\ feet\ tall.$ Answer here

8 0

3 years ago

Number 3 plzzzzzzzzz

zhenek [66]

Answer:

Step-by-step explanation:

I'm pretty sure some smart guy in Greece noticed this but:

Since 4 + 8 = 12, thats the only option where 2 of the smaller sides add up to the big one. I don't know much of the reasoning behind this but my math teacher showed it to us by using Popsicle sticks to make triangles. You can try it if that helps you think about it. Apparently, if you add up the 2 smaller sides, then it HAS to be more than the biggest side.

5 0

3 years ago

Read 2 more answers