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3 years ago

What is the sign of 9.(-0.5)? a: postive b:negative c: zero

Mathematics

2 answers:

guajiro [1.7K]3 years ago

7 0

Answer:

B. Negative

Step-by-step explanation:

Hope it is helpful...

Nimfa-mama [501]3 years ago

3 0

Answer:

Negative

Step-by-step explanation:

You might be interested in

Given the two sets, which statement is true?

IRINA_888 [86]

Answer:

$\large\boxed{A\subset B}$

Step-by-step explanation:

$A=\{1,\ 2\},\ B=\{1,\ 2,\ 3,\ 4\}\\\\A\subset B,\ \text{because all elements of the set A are the elements of the set B.}$

5 0

3 years ago

number from 1 to 99 is written on a card making a pack of 99 cards. What is the probability of randomly selecting a card where t

andriy [413]

Answer:

(19/99) = 0.192

Step-by-step explanation:

Numbers 1 to 99, that is 99 numbers (obtained through the equation for the nth term of an AP)

L = a + (n-1) d

L = nth term = 99

a = first term = 1

n = number of terms = ?

d = common difference = 1

99 = 1 + (n-1)1

n = 99

Sample space = 99

The numbers that include at least, a 1 are

1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 31, 41, 51, 61, 71, 81, 91

19 numbers.

Probability of randomly selecting a card where the number contains at least one digit 1 from 1 to 99 = (19/99) = 0.192

Hope this Helps!!!

3 0

4 years ago

The smelliness of cheese (denoted by S) can be defined as a function of the number of bacteria in the cheese (denoted by B) and

DedPeter [7]

Answer: OPTION C.

Step-by-step explanation:

Given the following formula:

$S=B*A$

You know that "S" is the smelliness of cheese, "B" is the number of bacteria in the cheese and "A" is the surface area in square centimeters of the cheese.

For example, suppose that there are $3,000\ bacterias$ in a surface area of $60 \ cm^2$ .

Substitute into the formula these values:

$B=3,000\ bacterias\\\\A=60\ cm^2$

And then evaluate:

$S=(3,000\ bacterias)(60\ cm^2)\\\\S=180,000\ bacterias*cm^2$

Therefore, you can conclude that the appropriate measurement unit for "S" is:

$bacterias*cm^2$

6 0

3 years ago

Graph the system of equations: y=-x^2+3x-1 2y-1=x

Nana76 [90]

Y = -x² + 3x - 1
x = 2y - 1

x = 2(-x² + 3x - 1) - 1
x = 2(-x²) + 2(3x) + 2(-1) - 1
x = -2x² + 6x - 2 - 1
x = -2x² + 6x - 3
- x - x 
0 = -2x² + 5x - 3
x = -(5) +/- √((5)² - 4(-2)(-3))
 2(-2)
x = -5 +/- √(25 - 24)
 -4
x = -5 +/- √(1)
 -4
x = -5 +/- 1
 -4
x = -5 + 1 or x = -5 - 1
 -4 -4
x = -4 x = -6
 -4 -4
x = 1 x = 1.5

2y - 1 = x
2y - 1 = 1
 + 1 + 1
 2y = 2
 2 2
 y = 1
(x, y) = (1, 1)
or
2y - 1 = x
2y - 1 = 1.5
 + 1 + 1 
 2y = 2.5
 2 2
 y = 1.25
(x, y) = (1.5, 1.25)
The two solutions is equal to (1, 1) and (1.5, 1.25).

4 0

3 years ago

10y + 12 - 7y - 8 - 3y = ?

Misha Larkins [42]

Answer:

The answer is 4 :)

Step-by-step explanation:

6 0

3 years ago