Can someone help me??

Answers

Answer 1

Answer: I'm not sure if this is what you mean by 'inverse', but here goes:

y = ∛(x+2)

Cube each side of the equation:

y³ = x + 2

Subtract 2 from each side:

x = y³ - 2

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A.How much flour is used with 6 eggs? B.How many eggs are used with 15 cups of flour?
Solve the equation.2(x + 4) = x + 13A. −3B. −1C. 5D. 7
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After paying eight dollars for the pie, Mike has eighty - one dollars left, his friend has thirteen dollars. How much money did he have before buying the pie

Answers

Answer:

__ - 8=81

unsure if we're adding his friend but for this i assume no,

81+ 8 = 89

so its either 89 or

89+13=102

Which expression is equivalent to 21 + 49?A 7(3 + 49)

B 7(3 + 7)

C 7(14 + 42)

D 7(14 + 49)

Answers

It would be the second choice, B. 7(3+7) because when you distribute, you get 21+49, because 7x3=21 and 7x7=49.

the answer would be b because 3+7 is 10 and multiple that by 7 is 70. and 20 plus 49 is 70

You own 6 hats and are taking 4 on vacation. In how many ways can you choose 4 hats from the 6?A. 15

B. 360

C. 1

D. 720

Answers

Answer:

Option B is the answer.

Step-by-step explanation:

I own 6 hats and i am taking 4 hats on vacations.

I have to find the number of ways that I can choose 4 hats out of 6.

In this question we will apply the combination rule.

So by combination rule number of ways to choose hats will be $^(6)C_(4)$

$^(6)C_(4)=(6!)/((6-4)!(4)!)$

$=(6* 5* 4!)/(2!* 4!)$

$=(30)/(2)$

=15

Therefore, option A. 15 will be the answer.

your answer is A. 15

Which polygons are congruent?

Answers

Two polygons are congruent if they are the same size and shape - that is, if their corresponding angles and sides are equal. Move your mouse cursor over the parts of each figure on the left to see the corresponding parts of the congruent figure on the right.

Lane is 10 times Mel's age. If the difference in their age is 27, how old is Mel?

Answers

l - Lane's age
m- Mel's age.
Lane is 10 times Mel's age, so 10m = l
difference in their age is 27 so l - m = 27
Substitute l = 10m and you'll have:
10m - m = 27
9m = 27 /:9
m=3
And l = 10m = 10*3 = 30

So Lane has 3 years old and Mel has 30 years old.

1. Simplify the expression.(6+6i)-(2+i)

2. Simplify the expression.
(8+i)(2+7i)

3. Find the conjugate of the complex number 8+12i
A. 96
B. 8-`1i
C. -96i
D. 20

4. Use the complex conjugate to find the absolute value of 8+12i
A. 12
B. square root of 208
C. square root of 84
D. 8

Answers

The correct answers are:

(1) 4+5i

(2) 9+58i

(3) 8 - 12i (Option B; The question's options have a typo)

(4) Square root of 208 (Option B).

Explanations:

(1) Given: (6+6i)-(2+i)

We need to simplify the given expression. For that, add real parts with each other, and add imaginary parts of the complex numbers with each other. Remember that the numbers with the symbol "i" are the imaginary parts of the complex number. Therefore,

(6-2) + (6i - i) = 4 + 5i (ans)

(2) Given: (8+i)(2+7i)

Now in this case we will multiply two complex numbers with each other; here in this case, we have to remember that $i^2 = -1$ . Now let us find out the multiplication of two complex numbers:

(8+i)(2+7i)

8(2+7i) + i(2+7i)

$16+56i+2i+ 7i^2$

16 + 58i + 7(-1)

= 9 + 58i

Hence the correct answer is 9+58i.

(3) Given: 8+12i

In simple terms, in order to find the conjugate of the complex number, we take the real number of the complex number as is, but we change the sign of the imaginary part of the complex number. In the given expression, 8 is the real number; hence, we will take it as is, whereas, +12i is the imaginary part of 8+12i. So to find the conjugate, we will change +12i to -12i.

Therefore, the conjugate of the complex number will become 8 - 12i (Option B; The question's options have a typo).

(4) Given: 8+12i

First, we need to find the complex conjugate of the given complex number. Please see the explanation given in Part (3) above to find the complex conjugate. The complex conjugate of 8+12i is 8-12i

Now, to find the absolute value of the complex conjugate 8-12i, follow these steps:

|8-12i|

We will add the square of the real number (8) with the square of the imaginary number (-12) and take the square-root at the end to find the absolute value:

$√((8)^2 + (-12)^2) \n √(64 + (144)) \n √(208)$

Hence the correct answer is square root of 208 (Option B).

1. 4 + 5i
2. 9 - 58i
3. tbh idek
4. /sqrt{208}

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