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AVprozaik [17]
3 years ago
12

7-4i divided by 2+i how to solve it?

Mathematics
1 answer:
Anettt [7]3 years ago
5 0
<span><span>7−<span>4i</span></span><span>2+i</span></span><span>=<span>2−<span>3<span>i


You can't solve this problem, only simplify it.</span></span></span></span>
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Simplify: (∛125 + ∛64 - ∛1)^1/3​
Liono4ka [1.6K]

Answer:

2

Step-by-step explanation:

(∛125 + ∛64 - ∛1)^1/3​

(5 + 4 - 1)^1/3

8^1/3

= 2

8 0
2 years ago
Read 2 more answers
A spherical balloon was inflated such that it had a diameter of 24 centimeters. Additional helium was then added to the balloon
DanielleElmas [232]
To solve this we are going to use the formula for the volume of a sphere: V= \frac{4}{3}  \pi r^3
where 
r is the radius of the sphere 

Remember that the radius of a sphere is half its diameter; since the first radius of our sphere is 24 cm, r= \frac{24}{2} =12. Lets replace that in our formula: 
V= \frac{4}{3} \pi r^3
V= \frac{4}{3} \pi (12)^3
V=7238.23 cm^3

Now, the second diameter of our sphere is 36, so its radius will be: r= \frac{36}{2} =18. Lets replace that value in our formula one more time:
V= \frac{4}{3} \pi r^3
V= \frac{4}{3} \pi (18)^3
V=24429.02

To find the volume of the additional helium, we are going to subtract the volumes:
Volume of helium=24429.02cm^3-7238.23cm^3=17190.79cm^3

We can conclude that the volume of additional helium in the balloon is approximately <span>17,194 cm³.</span>
8 0
3 years ago
Using elimination process what is the answer for <br><br> 14x+2y=18<br> -7x-4=9 <br><br> use steps
AlekseyPX
Step 1; multiple equation 2 by -2: 14x+8y=-18
step2: subtract this new equation from equation 1 to eliminate x:
2y-8y=18-(-18)
-6y=36
y=-6
step 3: substitute y=6 in equation 2: -7x-4*(-6)=9, -7x=-15, x=15/7
8 0
3 years ago
12 gallons in 4 minutes ; 21 gallons in 7 minutes
Fofino [41]

1. 3 Gallons per minute

2. 3 gallons per minute

The unit rate is 3 gallons.

8 0
3 years ago
Avril invested $60,000 in a partnership with lane Jules Ray Ravi and petra. The total investment of all partners was 320,000 wha
laiz [17]

We have been given that Avril invested $60,000 in a partnership with lane, Jules, Ray, Ravi and petra. The total investment of all partners was 320,000.

To find percentage of the business Avril owns we will find 60,000 is what percent of 320,000.

\text{Percentage of business that Avril owns }=\frac{60,000}{320,000}\cdot100    

\text{Percentage of business that Avril owns }=\frac{6}{32}\cdot100

\text{Percentage of business that Avril owns }=0.1875\cdot100

\text{Percentage of business that Avril owns }=18.75

Therefore, Avril owns 18.75% of the business.

5 0
3 years ago
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