All categories

3 years ago

Let a be a non-zero rational number and b be an irrational number. Is a x b rational or irrational?

Mathematics

1 answer:

pentagon [3]3 years ago

8 0

Answer:

rational

Step-by-step explanation:

You might be interested in

Solve 2c/15 =8.8. the solution to c is

ArbitrLikvidat [17]

The solution to c is 66

4 0

4 years ago

Solve the system using multiplication for the linear combination method.

zysi [14]

(2,3) is your answer for the equation

5 0

3 years ago

Below are two regular polygons. Calculate the value of angle a.

kodGreya [7K]

There’s no attachment

7 0

3 years ago

HELP PLEASE!!! I need help with this question!

AlexFokin [52]

Answer:

$\large\boxed{PS=10\sqrt5}$

Step-by-step explanation:

ΔPQS, ΔRQP and ΔRPS are similar (AA). Therefore the sides are in proportion:

$\dfrac{QR}{RP}=\dfrac{RP}{RS}$

We have:

$QR=5,\ RS=20$

Substitute:

$\dfrac{5}{RP}=\dfrc{RP}{20}$ <em>cross multiply</em>

$RP^2=(5)(20)\\\\RP^2=100\to RP=\sqrt{100}\\\\RP=10$

Use the Pythagorean theorem:

$PS^2=PR^2+RS^2$

Substitute:

$PS^2=10^2+20^2\\\\PS^2=100+400\\\\PS^2=500\to PS=\sqrt{500}\\\\PS=\sqrt{100\cdot5}\\\\PS=\sqrt{100}\cdot\sqrt5\\\\PS=10\sqrt5$

6 0

3 years ago

Need help with this question

muminat

Answer:

(0,4)

Y =2.5X +4

Step-by-step explanation:

3 0

3 years ago