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3 years ago

Which statement best describes a situation in which opposite quantities combine to make zero?

2 answers:

6 0

Let's see

a) 2 + 2 = 4
b) 8 / 8 = 1
c) + 10 - 10 = 0
d) 4 x 4 = 16

Answer is C, as the quantities combine to become zero.

Hope this helps. - M

andreev551 [17]3 years ago

3 0

Answer: The answer is C I took the test

Step-by-step explanation:hope this helps :)

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A 29-meter ladder is sliding down a vertical wall so the distance between the top of the ladder and the ground is decreasing at

vitfil [10]

Complete question

A 29-meter ladder is sliding down a vertical wall so the distance between the top of the ladder and the ground is decreasing at 7 meters per minute. At a certain instant, the bottom of the ladder is 21 meters from the wall.

What is the rate of change of the distance between the bottom of the ladder and the wall at that instant(in meters per minute)

Answer:

$\frac{dx}{dt}=11.94m/min$

Step-by-step explanation:

From the question we are told that

Slant height $z=29m$

Change in Vertical height $\triangle y=7m/s$

Horizontal length $x=21$

Generally in finding the distance form the top to the bottom of the wall it is mathematically given by

$x^2+y^2=z^2$

$21^2+y^2=29^2$

$y^2=29^2+21^2$

$y=35.81$

Generally solving for the differential equation is mathematically represented as

$x^2+y^2=29^2$

$2x*\frac{dx}{dt} +2y*\frac{dy}{dt} =0$

$x*\frac{dx}{dt} +y*\frac{dy}{dt} =0$

$(21)*\frac{dx}{dt} +(35.81)*(-7) =0$

$(21)*\frac{dx}{dt} -250.64 =0$

$\frac{dx}{dt}=\frac{250.64}{21}$

$\frac{dx}{dt}=11.94m/min$

5 0

3 years ago

What is the answer to 8÷544

Stells [14]

8 ÷ 544 = 0.0147058824, 544 ÷ 8 = 68

3 0

4 years ago

What’s the distance between (3,4) , (7,2)

Reptile [31]

Answer:

$D= 4.47$

Step-by-step explanation:

Here we are given with two coordinates and asked to determine the distance between them.

Here we are going to use the distance formula, which is given as under

$D=\sqrt{(y_2-y_1)^2+(x_2-x_1)^2}$

Where

$(x_1,y_1) = (3,4)$

$(x_2,y_2) = (7,2)$

Replacing these values in the distance formula

$D =\sqrt{(7-3))^2+(2-4)^2}$

$D =\sqrt{(4)^2+(-2)^2}$

$D =\sqrt{16+4}$

$D =\sqrt{20}$

$D= 4.47$

3 0

4 years ago

Plz help similarity theorems

Pachacha [2.7K]

Answer:

<h2>Hey , option B is correct ....</h2>

as two angles are equal

6 0

3 years ago

Read 2 more answers

A standard showerhead in Reyna's house dispenses 9 gallons of water per minute. Reyna changed this showerhead to an energy-savin

sukhopar [10]

Answer: 48 gallons

Step-by-step explanation:

Given: Previous rate of dispensing water= 9 gallons per min

If Reyna use 8 min showerhead then

Total amount of water dispensed= $8\times9=72\ gallons$

After Reyna changed the showerhead to energy saving with equation

y=3x, where y is the amount of water dispensed as a function of the number of x minutes for the new showerhead.

When we put x=8 minutes, we get total amount of water dispensed= $3\times8=24\ gallons$

Water saved by Reyna=72-24=48 gallons

4 0

4 years ago

Read 2 more answers

Which statement ​best​ describes a situation in which opposite quantities combine to make zero?

Which statement best describes a situation in which opposite quantities combine to make zero?