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Trava [24]
3 years ago
9

Which expression demonstrates the use of the commutative property of addition in the first step of simplifying the expression (–

3 + i) + (18 + 5i)?
(–3 + i) + (18 + 5i) + 0
–3 + (i + 18) + 5i
(–3 + 18) + (i + 5i)
–(3 – i) + (18 + 5i)
Mathematics
2 answers:
neonofarm [45]3 years ago
6 0

The answer would be (-3+18) + (i +5i)


This is because changing the order of the numbers does not change the sum

katrin [286]3 years ago
4 0

Answer:

Short answer is C.

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Subtract.<br> 5/23 - 4/23<br> (Type an integer or fraction.)
ad-work [718]

Answer:

1/23

Step-by-step explanation:

5/23 - 4/23 would be 1/23. When the denominators of the fractions are the same, you can just subtract the numerators.

7 0
3 years ago
20% of a is 11. What is a?
a_sh-v [17]

Answer:

a is 5.

b is 16.

c is 24.

D is 9.

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3 years ago
Choose the graph which matches the function. (2 points) <br> f(x) = 3x-4
vovangra [49]

The last image is the graph of y = 3^x

In fact, it is an increasing exponential function, and it passes through the points (0,1), which reflects the fact that 3^0=1 and (1,3), which reflects the fact that 3^1=3.

Now, y = 3^{x-4} is a child of the parent function we just described. Precisely, it is the result of the transformation f(x) \to f(x-4)

In general, every time you perform a transformation like f(x) \to f(x+k), you translate the graph horizontall, k units to the left if k is positive, and k units to the right if k in negative.

Since in this case k = - 4, we have a horizontal translation of 4 units to the right.

So, the correct option is the third one, because:

  • The first graph is the parent function translated 4 units to the left
  • The second graph is the parent function translated 4 units down
  • The third graph is the parent function translated 4 units to the right
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5 0
3 years ago
Graph the solution to this inequality on the number line.<br><br> 1/4x − 2 &lt; − 1 1/2
Shalnov [3]

Answer:

Draw an open circle on 2 and continue the arrow left.

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
C. If one cubic foot contains about 7.5 gallons, how many gallons of water are in the pool? (3 points) I Water: gallons 3. A rec
Dominik [7]

Answer:

<u>One Rectangular Pan</u>

Step-by-step explanation:

Part C cannot be answered since the dimensions of the pool are not given.  Please check the question.

The cake pans may be compared by calculating the volume of each shape:

Rectangular pan:  Volume = Length x Width x Height

  Volume Rectangle = (13")*(9")*(2") = <u>234 in^3</u>

Round pan:  Volume = \pi r^{2} h

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Two round pans will hold 2*(100.5 in^3) or 201 in^3 of batter

One rectangular pan holds 234 in^3.

Go with the rectangular pan if you want more cake.

4 0
1 year ago
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