All categories

3 years ago

X^3 = 64 Solve it pls

Mathematics

2 answers:

AnnyKZ [126]3 years ago

8 0

Answer:

x=4

Step-by-step explanation:

bazaltina [42]3 years ago

6 0

Answer:

x=4

Step-by-step explanation:

Correct

You might be interested in

For `z_1 = 9"cis" (5pi)/(6)` and `z_2 = 3"cis" (pi)/(3)`, find `(z1)/(z2)` in rectangular form.

sammy [17]

Answer:

option D is correct, i.e. 3i

Step-by-step explanation:

Given are the complex number as Z₁ = 9 cis(5π/6) and Z₂ = 3 cis(π/3)

So magnitudes are r₁ = 9, and r₂ = 3

And arguments are ∅₁ = 5π/6, and ∅₂ = π/3

We know the formula for division of complex number is given as follows:-

If Z₁ = r₁ cis(∅₁) and Z₂ = r₂ cis(∅₂)

Then |Z₁ / Z₂| = (r₁/r₂) cis(∅₁ - ∅₂)

|Z₁ / Z₂| = (9/3) cis(5π/6 - π/3)

|Z₁ / Z₂| = 3 cis(5π/6 - 2π/6)

|Z₁ / Z₂| = 3 cis(3π/6)

|Z₁ / Z₂| = 3 cis(π/2)

|Z₁ / Z₂| = 3 cos(π/2) + 3i sin(π/2)

|Z₁ / Z₂| = 3*(0) + 3i*(1)

|Z₁ / Z₂| = 0 + 3i

|Z₁ / Z₂| = 3i

Hence, option D is correct, i.e. 3i

8 0

3 years ago

What will you get if you do this 4x-3x+9=20

nignag [31]

Answer:

This can be solved like this:

4x-3x+9=20

Solving 4x-3x

x+9=20

Transposing +9

x=20-9

And now we have, x=11

5 0

2 years ago

Read 2 more answers

If 4^3x−2 =4^x+1, then x= ? the pic looks better

iris [78.8K]

After solving $4^{3x-2}=4^{x+1}$ we get value of x: $x=\frac{3}{2}$

Step-by-step explanation:

We need to solve the equation $4^{3x-2}=4^{x+1}$ and find value of x:

Solving:

$4^{3x-2}=4^{x+1}$

Using the rule: if $if\,\,a^{x}=a^{y}\,\,then\,\,x=y$

Since our base is equal i.e 4 so,

$3x-2=x+1\\3x-x=1+2\\2x=3\\x=\frac{3}{2}$

So, After solving $4^{3x-2}=4^{x+1}$ we get value of x: $x=\frac{3}{2}$

keywords: Solving Exponents

Learn more about Solving Exponents at:

#learnwithBrainly

3 0

3 years ago

PLEASE HELP! Shalini found the sum of the measures of the interior angles of the triangle to be 175°. She knows the sum is suppo

forsale [732]

Answer: The answer is angle c is 45 degrees or C

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

A piggy bank contains dimes and quarters. There are a total of 64 coins in the bank with a total value of $10.30. How many of ea

Mama L [17]

This is the concept of simultaneous equations. Let the number of dimes be x and that of quarters by y.
1 quarter =$0.25
1 dime=$0.1
Total number of coins in piggy bank
x+y=64
thus
x=64-y.........i
Total amount will be:
0.1x+0.25y=10.30......ii
substituting i in ii and solve for y we get:
0.1(64-y)+0.25y=10.30
6.4-0.1y+0.25y=10.30
0.15y=10.30-6.4
0.15y=3.9
y=3.9/0.15
y=26
hence:
x=64-y=64-26=38
Therefore we conclude that there are 38 dimes and 26 quarters

6 0

3 years ago