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LenKa [72]
2 years ago
9

Which expression has a value that is a rational number?

Mathematics
1 answer:
Gnom [1K]2 years ago
5 0

Answer:

The expression has a negative rational number A as its numerical value. Positive rational B. positive integer. negative integer. Question ...

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A store buys 8 sweaters for $72 and sells them for $370. How much profit does the store make per sweater?
lubasha [3.4K]
They are making a profit of $37.25 per sweater
Explanation:
1-subtract 370 by 72 to get rid of the cost of the sweater which is equal to 298
2- then divide 298 by 8 to get the price of each sweater
5 0
3 years ago
The graph represents function 1, and the equation represents function 2: A coordinate plane graph is shown. A horizontal line is
hichkok12 [17]
Hi there
It would be 145
6 0
3 years ago
Read 2 more answers
To find the product of 42.12 and 10³, move the decimal point in 42.12 __ places to the right because 10³ has __ zeros.
Yakvenalex [24]
<h3>To find the product of 42.12 and 10^3,  move the decimal point in 42.12 3 places to the right because 10^3 has 3 zeros</h3>

<em><u>Solution:</u></em>

Given that,

\text{ product of } 42.12 \text{ and } 10^3

Which means,

42.12 \times 10^3

Here, the exponent of 10 is positive ( which is 3)

When the exponent is positive, we have to move the decimal point to right

When you multiply a number by a power of 10, ( 10!, 10^2, and so on ) move the decimal point of the number to the right the same number of places as the number of zeros in the power of 10

Here, exponent is 3 , therefore move the decimal point right 3 places in 42.12

Therefore,

42.12 \times 10^3 = 42120

7 0
3 years ago
what is the value of x in the diagram below? if necessary round your answer to the nearest tenth of a until
VladimirAG [237]

Answer:

C

Step-by-step explanation:

Calculate AC using Pythagoras' identity in ΔABC

AC² = 20² - 12² = 400 - 144 = 256, hence

AC = \sqrt{256} = 16

Now find AD² from ΔACD and ΔABD

ΔACD → AD² = 16² - (20 - x)² = 256 - 400 + 40x - x²

ΔABD → AD² = 12² - x² = 144 - x²

Equate both equations for AD², hence

256 - 400 + 40x - x² = 144 - x²

-144 + 40x - x² = 144 - x² ( add x² to both sides )

- 144 + 40x = 144 ( add 144 to both sides )

40x = 288 ( divide both sides by 40 )

x = 7.2 → C



6 0
3 years ago
Read 2 more answers
Which expression represents the area of the shaded sector
11111nata11111 [884]

the answer should be C.

4 0
3 years ago
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