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Ilya [14]
3 years ago
6

Explain why the expression 7*3^x is not equal to the expression 21^x

Mathematics
1 answer:
mina [271]3 years ago
5 0
According to the order of operations, exponents must be evaluated before multiplication.

Here's and example where x=2.
7*3^2
7*9
63

21^2=441

63 does not equal 441
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Can someone please help me on this question? I am very confused!
n200080 [17]

Here we are give the value for π and Diameter of the circle fence

π=3.14

Diameter = 16

Radius = Diameter/2

2πr = 2(3.14)(8)

Circumference = 50.27

Now to fine the square fence length so we do 16*4 = 64

64-50.27 = 13.73 in

Therefore, the square fence is 13.73 inches longer than the circle fence

5 0
3 years ago
Evaluate the expression -2b+x when b=3 and x=-4
earnstyle [38]

Answer:

-10 is the answer

Step-by-step explanation:

first things that you will replace each number in:

-2x3+(-4)=-10

6 0
3 years ago
Read 2 more answers
Solution region of inequalities x≥ 0 and y≤0 lies in which quadrant?​
morpeh [17]

9514 1404 393

Answer:

  IV

Step-by-step explanation:

x > 0 in quadrants I and IV.

y > 0 in quadrants I and II.

The quadrant in which x > 0 and y < 0 is quadrant IV.

_____

The axes, x=0 or y=0, are in no particular quadrant. They are the boundaries between quadrants.

3 0
3 years ago
How do you simplify 11c + 3(-5c + 4d)?
kow [346]
Well first just multiply the things in the parenthesis by 3 and get -15c + 12d and then subtract 15 from 11 (because of the c) and get -4c +12d
5 0
4 years ago
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Write a number sentence that compares 3/5 and 5/6
zavuch27 [327]
To compare 3/5 and 5/6th we need to convert them to a common denominator so if we multiply their denominators we get 5x6 = 30 but we must multlply the numerator by the same number so 3/5 = 18/30th and 5/6 = 25/30 so we see that 25/30 is greater than 18/30th or then 5/6 is greater than 3/5.
8 0
4 years ago
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