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shtirl [24]
3 years ago
13

True or false: if x=1, then x>0. If false, give a counterexample.

Mathematics
2 answers:
dolphi86 [110]3 years ago
7 0
The aswer is true. If you think bout it 1 is > 0
UkoKoshka [18]3 years ago
3 0
True
because u gotta think about it like that for more then 5 seconds
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Michael buys a computer that is on sale for 10% off the original price. The original price is $38 more than the sale price. What
Alexeev081 [22]

Answer:

380

Step-by-step explanation:

10%->38

100%-> 38÷10×100=380

6 0
3 years ago
If x = -6 and y = -2, evaluate the expression.<br> 3x - 10<br> y-5
Bond [772]
Is it
3x-10= 3(-6)-10= -28
Y-5= -2-5=-7
3 0
2 years ago
Help I’m not sure if this is correct number 4
Katena32 [7]

Answer:

-12= -12

Step-by-step explanation:

You're correct dw!

3 0
1 year ago
Describe any domain restrictions that make sense for each of these scenarios: The price of a stock fluctuates several times thro
mrs_skeptik [129]

Answer:

  • a) Restriction: days of the year (a discrete time)

  • b) The time the ball is on the air: t = 0, until the balls touchs the ground (any real value from t = 0 to t when the ball hits the ground)

  • c) Any positive real value: x ≥ 0

Explanation:

The <em>domain </em>is the set of elements that can be inputs of the <em>function</em>.

<u><em>1. The price of a stock fluctuates several times throughout the year as a function of time.</em></u>

The input variable is the time through out the year.

If you assume that the fluctuaion is recorded once a day, and not every second, the logical assumption is that the time is a day of the year.

Thus, the restricion is the days of the year.

You could represent them in different forms, like DD/MM/YY, or even as a number from 1 to 365 if it covers just one year.

<u><em></em></u>

<u><em>2. A ball is hit into the air by a baseball player, rises until it reaches its highest point, and then falls into left field.</em></u>

The domain is the time the ball is on the air, which may be any real value from t = 0, until the balls touchs the ground.

It is not restricted to integer numbers.

<u><em>3. The volume of a spherical balloon increases as the balloon is blown up and decreases as air is let out of it.</em></u>

The inputs of the function are amounts of air, which may be measured as number of moles.

The number of moles can be any real value equal or greater than zero.

Thus, the domain is the positive real values x ≥ 0.

8 0
3 years ago
Read 2 more answers
What's the answer I'm not sure.
FinnZ [79.3K]
For the first one EF is 119 degrees now since that's made with two radii it makes a central angle so whatever that arc is the central angle will be the same. fro the second one since SRQ is 52 degrees you just take that and subtract it from 180 to get SQ. I'm not quite sure about the third one. the forth you are taking the measurement of the arc its connected to and dividing that by 2 so it would be 71 degrees. I'm pretty sure in right.

7 0
3 years ago
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