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zvonat [6]
3 years ago
6

IB/AP Mathematice: Logorithms

Mathematics
1 answer:
Anuta_ua [19.1K]3 years ago
8 0
1. 5^2 = 25
2. 2^6 = 64
3. 25^(1/2) =5
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Determine the number of real solutions of -2x2 + 5x - 3 = 0.
andrew11 [14]

-2x^2 + 5x -3 =0

Find the discriminate:

In the given formula a = -2, b = 5 and c = -3

The discriminate is found using the formula b^2 - 4(ac)

Replace the letters with their values:

5^2 - 4(-2*-3)

25 - 4*6

25-24 = 1

When the discriminate is greater than or equal to 0, there are two real solutions.

The answer is c) 2

4 0
3 years ago
Three boxes of supplies have an average (arithmetic mean) weight of 7 kilograms and a median weight of 9 kilograms. What is the
GuDViN [60]

Answer:

3

Step-by-step explanation:

A) 1

(B) 2

(C) 3

(D) 4

(E) 5

Mean is a measure of central tendency. It is the average of a set of numbers. It is determined by adding the numbers together and dividing it by the total number

Mean = sum of numbers / number of observation

sum of numbers = 3 x 7 = 21

Median is the number that is at the center or middle of a set of obervations

x +  9+ y = 21

x= lowest number

y = highest number

x + y = 21 - 9

x + y = 12

If x = 1 y = 11

if x = 2 y = 10

if x = 3 y = 9

if x = 4 y = 8

the first 3 are plausible and the median would still be 9 if x = 4, median would be 8

3 0
2 years ago
Write an equation if the line that passes through (-6,0) and (0,-24)
Irina-Kira [14]
Y=-4x - 24

I hope this helps you :)
4 0
3 years ago
The volume of a cube is S(x) = x3, where x is the length of the side of each edge of a cube. Find and describe the inverse funct
stepan [7]
S(x) = x^3
Make x the subject:-
x = (S(x))^ 1/3 = ∛ S(x)

Inverse  is ∛ S(x)
7 0
3 years ago
Read 2 more answers
I don’t know this and need help with the answer
ki77a [65]
9+10=21 that is the answer
4 0
3 years ago
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