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larisa [96]
4 years ago
6

Square root of -49 in terms of i

Mathematics
1 answer:
natita [175]4 years ago
3 0

Answer:

7i

Step-by-step explanation:

We know that  i = √-1

Then solving the given:

  • √-49 = √49×(-1) = √49 × √-1 = 7×√-1 = 7i

So the answer is:

  • √-49 = 7i
You might be interested in
An oblique prism with a square base of edge length x units has a volume of x3 cubic units. which expression represents the heigh
vovangra [49]

The expression that represents the height of the oblique prism is: 1/2x.

What is the Volume of a Prism?

  • The volume of a prism is defined as the total space occupied by the three-dimensional object.
  • Mathematically, it is defined as the product of the area of the base and the length.

Prism Volume = base area × height of the prism

Given that the oblique prism has:

Volume = 1/2x³ cubic units

edge length = x units

Therefore,

base area = x²

Thus:

1/2x³ = (x²)(height)

Divide both sides by x²

1/2x³ ÷ x² = height

1/2x³ × 1/x² = height

x³/2 × 1/x² = height

height = x³/2x²

height = x/2

Therefore, the expression that represents the height of the oblique prism is: 1/2x.

Learn more about oblique prism

brainly.com/question/20837986

#SPJ4

<u>The complete question is -</u>

An oblique prism with a square base of edge length x units has a volume of x3 cubic units. Which expression represents the height of the prism?

3 0
2 years ago
The sum of two numbers is 12 The sum of the squares of the two numbers is 80. What are the two numbers?
defon

Answer:

4 and 8

Step-by-step explanation:

The square of 4 is 16 and the square of 8 is 64.

16 + 64 = 80

4 0
4 years ago
Help! I need a=? And r=?% if I don't get my grade up I can't star drivers ed
lubasha [3.4K]
Initial is 12
Percent 1.05(I think but you might have to convert it)
Y=12(1.05)(5)
Y=63
7 0
3 years ago
How do I create an equivalent expression that includes parentheses so that the value of the expression is 2 for 3+8-4x2-12
natka813 [3]
(3+8-4)×2-12
3+8=11
11-4=7
7×2=14
14-12=2
5 0
3 years ago
John's Mathematics exam mark this year is increased by 5% to 84. Find his Mathematics exam mark
Svet_ta [14]

Answer:

80%

Step-by-step explanation:

Let's call the past exam mark m,

m*105%=84

m*105/100=84

m=84/(105/100)

m=80

Hope this helps!

8 0
3 years ago
Read 2 more answers
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