1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Firdavs [7]
3 years ago
11

Donte simplified the expression below.

Mathematics
2 answers:
shepuryov [24]3 years ago
8 0
Based on the given solution above made by Donte, the mistake that he made is that h<span>e did not apply the distributive property correctly for 4(1 + 3i). The answer is option A. Here is why. If we simplify this, it would look like this:
</span><span>4(1 + 3i) – (8 – 5i) 
4+12i - 8 + 5i
17i-4
so, </span>4(1 + 3i) – (8 – 5i) should be equal to 17i - 4. 
Hope this is the answer that you are looking for. Have a great day!
sergij07 [2.7K]3 years ago
6 0
The answer is: [A]: He did not apply the distributive property correctly for                                        4(1 + 3i) .
_____________________________________________
Explanation:
______________________
Note the distributive property of multiplication:
_____________________________
a*(b+c) = ab + ac.
____________________________
As such: 4*(1 + 3i) = (4*1) + (4*3i) = 4 + 12i ;
_____________________________________
Instead, Donte somehow incorrectly calculated:
_____________________________________
4*(1 + 3i) = (4*1) + 3i = 4 + 31; (and did the rest of the problem correctly);

Note:  - (8 - 5i) = -8 + 5i (done correctly; 
___________________________________
So if Donte did not apply the distributive property correctly for 4*(1+3i)—and incorrect got 4 + 3i (as mentioned above); but did the rest of the problem correctly, he would have got:
_____________________________
4+ 3i - 8 + 5i = -4 + 8i (the incorrect answer as stated in our original problem.
__________________
This corresponds to: "Answer choice: [A]: <span>He did not apply the distributive property correctly for 4(1 + 3i)."
___________________________</span>
You might be interested in
Please help! ASAP, no bots.
harkovskaia [24]

Answer:

perfect square (4x - 3)^2

Step-by-step explanation:

3 0
3 years ago
Can someone please help?
Alika [10]

Answer:

A. mean 71.33, median 86, mode 90 90 100 100, range 55

B. mean 79.41, median 36.5, mode 90, range 60

c. mean 73.16, median 2, mode 75 75 80 80, range 45

Step-by-step explanation:

mean is the average so add all numbers then divide by the number of number

mode is the number that is often seen

range subtract the smallest from largest or the other way around

median the middle number when lined all number from less to biggest  

4 0
3 years ago
What is the volume of the cone in terms of π
jolli1 [7]

Answer:

Step-by-step explanation:

V=πr2h

3

r Radius

h Height

4 0
3 years ago
A photographic negative is 3 cm by 2 cm. A similar print from the negative is 9cm long on its shorter side. What is the length o
lbvjy [14]

Answer:

13.5 cm

Step-by-step explanation:

9 divided by 2 = 4.5 *There's a 4.5 increase

3 X 4.5 = 13.5

The new print is 13.5cm by 9cm

5 0
3 years ago
The total number of fans who went to watch professional soccer games in the last decade can be modeled by the function f(x)=x3+9
Pani-rosa [81]

Answer:

Step-by-step explanation:

<u><em>answer may vary sorry i could not seem to get this question sorry try asking someone else </em></u>

5 0
3 years ago
Other questions:
  • What is this equation? -4b^2-6b-10
    10·2 answers
  • Write a comparison sentence that represents this equation. 5x9=45
    7·1 answer
  • Tommy stands on a diving board that is 4 fee above the pools surface. He dives and touches the bottom of the pool, which is 12 f
    15·1 answer
  • Which exponential function has a growth factor of 1/2?
    7·2 answers
  • Sue has 1/2 gallon of milk to share evenly among four people. How much milk, in gallons, should she give each person?
    8·1 answer
  • What whole number comes right after <br> 102
    15·2 answers
  • The ___ is the average of the sum of the squared differences of the mean from each
    15·1 answer
  • Addition of which two number is 736?​
    11·1 answer
  • Solve and then answer the questions​
    15·1 answer
  • Find the values of m&amp;n if x
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!