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3 years ago

What is a negative number minus a negative number?

Mathematics

2 answers:

SVETLANKA909090 [29]3 years ago

8 0

Answer:

$-x-(-y) = y-x$

Step-by-step explanation:

lets say you have two negative numbers, -x and -y (x and y are positive).

$-x-(-y) = y-x$

alexgriva [62]3 years ago

8 0

Your answer is a positive number.

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How to do this?

Mandarinka [93]

This equation uses two properties of logarithms:

$\ln(g^x) = x \ln(g)$

$\ln(a) + \ln(b) = \ln(ab)$

So you could take the ln from left and right hand side in the equation, and get:

(2-x)ln 3 = x ln 5

then

2 ln 3 - x ln 3 - x ln 5 = 0 =>

x(ln 3 + ln 5) = 2 ln 3

so x = 2 ln 3 / (ln3 + ln5)

Now using the 1st property you can say 2 ln 3 is ln 3² = ln9
and using the 2nd property you can say ln3 + ln5 = ln15

so x= ln9 / ln15

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3 years ago

Can someone solve this please 9g = 36

Goryan [66]

You divide 9 on both sides than it would be g=4

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3 years ago

Read 2 more answers

Which of the following lists of ordered pairs is a function

Y_Kistochka [10]

They have the 2
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4 0

3 years ago

Read 2 more answers

A log is floating on swiftly moving water. A stone is dropped from rest from a 50.8-m-high bridge and lands on the log as it pas

TiliK225 [7]

Answer:

Horizontal distance between the log and the bridge when the stone is released = 17.24 m

Step-by-step explanation:

Height of bridge, h = 50.8 m

Speed of log = 5.36 m/s

We need to find the horizontal distance between the log and the bridge when the stone is released, for that first we need to find time taken by the stone to reach on top of log,

We have equation of motion. s = ut + 0.5 at²

Initial velocity, u = 0 m/s

Acceleration, a = 9.81 m/s²

Displacement, s = 50.8 m

Substituting,

s = ut + 0.5 at²

50.8 = 0.5 x 9.81 x t²

t = 3.22 seconds,

So log travels 3.22 seconds at a speed of 5.36 m/s after the release of stone,

We have equation of motion. s = ut + 0.5 at²

Initial velocity, u = 5.36 m/s

Acceleration, a = 0 m/s²

Time, t = 3.22 s

Substituting,

s = ut + 0.5 at²

s = 5.36 x 3.22 + 0.5 x 0 x 3.22²

s = 17.24 m

Horizontal distance between the log and the bridge when the stone is released = 17.24 m

3 0

3 years ago

Roll the dice 18 times and record your results.

Roman55 [17]

Answer:

# Tally

1: ||||| (5)

2: | (1)

3: |||| (4)

4: ||| (3)

5: || (2)

6: ||| (3)

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3 years ago