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harina [27]
2 years ago
5

What is the value of 5^3¡^9

Mathematics
1 answer:
OLEGan [10]2 years ago
6 0

Answer:

125i

Step-by-step explanation:

We want to find

5^3i^9

This can be rewritten as;

5^3i^8\times i

5^3(i^2)^4\times i

Recall that; i^2=-1

5^3(-1)^4\times i

We evaluate now to obtain;

125(1)\times i=125i

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What is the formula for caluataing slope from two points
Alborosie
Formula: (y2-y1)/(x2-x1)
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3 years ago
The height after t seconds of an object projected upward with an initial velocity of 48 feet per second from a 210-foot tower ca
svetlana [45]

Given:

The height h of an object after t seconds is

h=-16t^2+48t+210

The height of a neighboring 50-foot tall building is modeled by the equation h=50.

The time (t) when the object will be at the same height as the building is found to be t = –2 and t = 5.

To find:

The statement which describes the validity of these solutions.

Solution:

We have,

h=-16t^2+48t+210

Here, t is the time in seconds.

For t=-2,

h=-16(2)^2+48(-2)+210

h=-64-96+210

h=50

For t=5,

h=-16(5)^2+48(5)+210

h=-400+240+210

h=50

So, the value of h is 50 at t=-2 and t=5.

We know that time is always positive so it cannot be negative value. It means t=-2 is not possible.

The solution t = 5 is the only valid solution to this system since time cannot be negative.

Therefore, the correct option is C.

6 0
2 years ago
0.25% of 42 is what number
Alborosie

Answer:

0.105

Step-by-step explanation:

0.25/100 x 42 = 0.105

6 0
2 years ago
Read 2 more answers
Evaluate the following expression: 2W+Z, when w=-7 and z=3
Vikki [24]

Answer:

(a) (2w)w 2. (b) 3p. 3 × 4p ... y = –5, and z = 3, ... x = 7, and x t = 2, t. (d) (kx + 2 kx y. + 2 )y z when k = 3.5, k x = 4, x y = –5, and z = 3,. (e)

Step-by-step explanation: hey sorry if its wronge but i tryied :P

T-T

3 0
2 years ago
Read 2 more answers
A(n) = A(n-1) + 5.1; A(1) = 9.6
zhenek [66]

Answer:

A(n) = 5.1×n + 4.5

Step-by-step explanation:

A(n) = A(n-1) + 5.1

A(1) = 9.6

A(n) - A(n-1) = 5.1  ,where n ≥ 1

This means that (A(n)) is an arithmetic sequence where :

<u>The common difference</u> r = 5.1

and

<u>The first term</u> A(1) = 9.6

Therefore

A(n) = A(1) + (n - 1)×r

       = 9.6 + (n - 1)×5.1

       = 9.6 + 5.1×n - 5.1

       = 5.1×n + (9.6 - 5.1)

       = 5.1×n + 4.5

4 0
1 year ago
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