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2 years ago

Is 4.9199199919999... a rational or irrational number?

Mathematics

1 answer:

ratelena [41]2 years ago

7 0

Answer:

irrational

Step-by-step explanation:

rational is if its repeating like (1.11111111) irrational if its (1.2464383252222)

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Given isosceles right triangle CDE with m∠D = 90, sin C = sin D

Butoxors [25]

Answer:True

Step-by-step explanation:

Given

$\angle D=90^{\circ}$

For isosceles triangle , CD=DE (x=y)

from figure,

$\sin C=\dfrac{y}{H}\\\\\sin D=\dfrac{x}{H}\\\\\text{CD=DE}\\\\\therefore \sin C=\sin D=\dfrac{x}{H}=\dfrac{y}{H}$

Thus, the given statement is true

7 0

3 years ago

Convert 17π/8 to degrees.

Rasek [7]

Answer:

382.5°

Step-by-step explanation:

Multiply

17π 180°

------ by the conversion factor ------------

8 π

obtaining:

(17)(180)°

------------- = 382.5°

6 0

3 years ago

9x 7=29. is 9 a solution to the problem?

Masteriza [31]

No it is impossible because 9x7=63

4 0

3 years ago

The price of an item yesterday was $60. Today, the price fell to $42. Find the percentage decrease.

oksian1 [2.3K]

Answer:

-30% or 30% decrease

Step-by-step explanation:

What's percentage decrease?

Percent decrease is the difference between the initial value and new value, indicating a loss of value.
The formula to find percent decrease is $\frac{NV-IV}{IV} * 100$ , where NV = new value and IV = initial value.

How do we solve this problem?

We know that the original value was $60, so that represents IV. Also, now that the price is $42, it represents NV.
Now, we plug in the values!
$\frac{42-60}{60} * 100$
$\frac{-18}{60} * 100$
$-\frac{3}{10} * 100$
$-3 * 10$
$-30$

Therefore, the answer is 30% decrease.

6 0

2 years ago

How do you solve the problem attached?

pentagon [3]

Use photo math it works for all types of math and book work

5 0

3 years ago

Read 2 more answers