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Lynna [10]
3 years ago
12

Which expression(s) have positive values? Choose

Mathematics
1 answer:
OLEGan [10]3 years ago
5 0

9514 1404 393

Answer:

  2. -(-73) is positive

Step-by-step explanation:

It's not too difficult, but you can get wrapped around the axle. Here are the rules:

  • the opposite of a positive number is a negative number
  • the opposite of a negative number is a positive number

That is, turning a number to its opposite is just changing its sign.

__

If you layer these rules, you find ...

  the opposite of (<em>the opposite of a positive number</em>) is a positive number

The first rule tells you <em>the statement in parentheses is a negative number</em>, and the second rule tell you its opposite is a positive number.

That is, a double opposite gets you back where you started. In short, <em>any even number of minus signs cancel each other</em>.

__

The numbers you have listed here* are ...

  1. -730 (negative)
  2. -(-73) = 73 (positive)
  3. -75 (negative)
  4. -(-(-701)) = -701 (negative)

_____

* We say "listed here" because we're seeing mismatched parentheses and brackets, so we know something is missing. We're going by the signs and numbers that we do see. YMMV

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The quotient of c and 6
Elena L [17]

Answer:

"a quotient of a number and 6" refers to n6 or n÷6 .

Step-by-step explanation:

r. Let's let n be the "number". Therefore, "a quotient of a number and 6" refers to n6 or n÷6 .

4 0
2 years ago
Mt. Everest is the highest point in the world at about 8850 meters above sea level. Dead Sea Shore is the lowest point on dry la
NemiM [27]

Answer:

There is a difference of 9268 meters

Step-by-step explanation:

5 0
2 years ago
What does 428,731 - 175,842 equal
gladu [14]
Its 252,889 because when your taking 428,731 from 175,842 your subtracting the bigger number from the little number & if you take 252,889 and add it too 175,842 you get 428,731.
5 0
3 years ago
Vector u has a magnitude of 5sq rt 3 feet and is directed due west. Vector v has a magnitude
Vikki [24]

The magnitude and the direction angle for  the resultant vector are 10N and 120degrees respectively

The formula for calculating the resultant vector is expressed as:

R^2 = u^2 + v^2\\R =\sqrt{u^2+v^2}

Given the following distances:

u = -5√3 feet (west direction)

v = 5 feet

Substitute the given values into the formula above;

R=\sqrt{(5\sqrt{3} )^2+5^2} \\R=\sqrt{(25 \times 3)+25}\\R=\sqrt{75 + 25}\\R=\sqrt{100}\\R = 10 feet

The magnitude of the resultant vector is 10feet

Get the direction:

\theta = tan^{-1}\frac{y}{x} \\\theta = tan^{-1}\frac{5}{-5\sqrt{3} }\\\theta =tan^{-1}\frac{-1}{\sqrt{3} }\\\theta = -60^0

Since tan is negative in the second quadrant, hence;

\theta = 180 - 60\\\theta = 120^0

Hence the magnitude and the direction angle for  the resultant vector are 10N and 120degrees respectively.

Learn more here: brainly.com/question/5177683

7 0
3 years ago
Work bout the height of this pyramid?
Olenka [21]

Answer:

20 cm.

Step-by-step explanation:

In order to find the height, we need the volume and the base area first. We are already given the volume so we need to find the base area.

A = 18 · 5 = 90

Now that we know the base area is 90 cm², we can substitute the information into the equation to solve for the height.

V = 1/3(A)(h)

600 = 1/3(90)(h) (Given)

600 = 30h (Simplified)

20 = h (Divided 30 on both sides)

Therefore, the height is 20 cm.

4 0
3 years ago
Read 2 more answers
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