What is thirteen times twelve?

Round to the nearest tenths please txt bck faster

adell [148]

Answer:

Sides:
a = 16 in
b = 10.28 in
c = 12.26 in

Angles:
A = 90 °
B = 40 °
C = 50 °

Other:
P = 38.541312844888 in
s = 19.270656422444 in
K = 63.027696192781 in2
r = 3.2706564224441 in
R = 8 in

Table:
A = angle A
B = angle B
C = angle C
a = side a
b = side b 
c = side c

P = perimeter
s = semi-perimeter 
K = area
r = radius of inscribed circle
R = radius of circumscribed circle

5 0

3 years ago

Alex says that there is no numbers between 1/3 and 1/4 . Why might he think that and what would you tell him? Is there a number

Thepotemich [5.8K]

Answer:

Why might he think that and what would you tell him?

He thought perhaps that numbers were formed by rational numbers of the form $\frac{1}{x}$ , where $x\in \mathbb{N}$ . I would tell him that there are rational numbers $\frac{y}{z}$ , such that $\frac{1}{x}\le \frac{y}{z} \le \frac{1}{x+1}$ , where $x$ , $y$ , $z \in \mathbb{N}$ .

Is there a number that falls between these?

$\frac{7}{24}$ is a rational number between $\frac{1}{3}$ and $\frac{1}{4}$ .

Step-by-step explanation:

Why might he think that and what would you tell him?

He thought perhaps that numbers were formed by rational numbers of the form $\frac{1}{x}$ , where $x\in \mathbb{N}$ . I would tell him that there are rational numbers $\frac{y}{z}$ , such that $\frac{1}{x}\le \frac{y}{z} \le \frac{1}{x+1}$ , where $x$ , $y$ , $z \in \mathbb{N}$ .

Is there a number that falls between these?

Indeed, the average number of $\frac{1}{3}$ and $\frac{1}{4}$ , for instance. That is:

$\frac{y}{z} = \frac{\frac{1}{3}+\frac{1}{4} }{2}$