All categories

3 years ago

Which math expression means "45 less than an unknown number"?

Mathematics

2 answers:

Allushta [10]3 years ago

6 0

Answer:

D. x * 45

Step-by-step explanation:

this is unknown number, everyone can't answer if there is that mark (*)

mr_godi [17]3 years ago

4 0

Answer:

A because when you subtract x will be less than the unknown number

You might be interested in

Are the opposites of -6.5 and the absolute value value -6.5 the same

algol [13]

I know the absolute value is how far away from zero is it. ( +6.5) so I would assume the opposite is the same thing.

7 0

3 years ago

Please help this is due tomorrow!!

Paraphin [41]

Step-by-step explanation:

angle 2 and angle 7 are alternate exterior angles and are equal.

all angles are 75

5 0

3 years ago

Read 2 more answers

a) How many significant figures are in the numbers 99 and 100? (b) If the uncertainty in each number is 1, what is the percent u

levacccp [35]

Answer:

2, 3

1.01, 1

Percentage uncertainty

Step-by-step explanation:

a) The significant figures in the number 99 is 2

The significant figures in the number 100 is 3

b) Uncertainty in each of the numbers for both the numbers is 1

Percentage uncertainty

$\text{Percentage uncertainty}=\frac{\text{Uncertainty}}{Value}\times 100 \\\Rightarrow \text{Percentage uncertainty}=\frac{1}{99}\times 100=1.01$

Percentage uncertainty = 1.01

100

$\text{Percentage uncertainty}=\frac{\text{Uncertainty}}{Value}\times 100 \\\Rightarrow \text{Percentage uncertainty}=\frac{1}{100}\times 100=1$

Percentage uncertainty = 1

c) Percentage uncertainty is a better way to express the numbers as the significant figures do not show the actual value of the numbers.

6 0

4 years ago

What is 24/4 as a whole number

stiks02 [169]

4 fits into 24 6 times so 24/4 written as a whole number is 6! I hope this helped :D

7 0

3 years ago

There are many cylinders with a height of 9 inches. Let r represent the radius in

mylen [45]

Answer:

Step-by-step explanation:

V, r, h are the volume, radius, and height, respectively.

V = πr²h = 9πr²

The only error in your previous answers was that you forgot the π.

if r = 1, V = 9π1² = 9π ≅ 28 in³

if r = 2, V = 9π2² = 36π ≅ 113 in³

if r = 3, V = 9π3² = 81π ≅ 254 in³

8 0

3 years ago