All categories

4 years ago

Two equivalent expressions for 24x - 3y

Mathematics

1 answer:

Zepler [3.9K]4 years ago

3 0

Some equivalent expression are 48x-6y and 72x-9y.

You might be interested in

A town is roughly in the shape of a rectangle * 600 m by 270 m. What is the approximate area of the town in hectares?

Irina18 [472]

Answer:

<h2>Area in Hectares = 16.2 hectares</h2>

Step-by-step explanation:

Area of a rectangle: length × width

A = 600 × 270

A = 162,000 meters

162,000 meters ⇒ 16.2 hectares

8 0

3 years ago

Complete the equation of the line whose y-intercept is (0,5) and slope is -9<br><br><br>y= ???

r-ruslan [8.4K]

Y= -9x+5

The slope intercept formula is y=mx +b, where m is the slope and b is the y-intercept. We know that m is -9 because that’s the slope and b is 5 because the y-intercept is at (0, 5), meaning that’s where the line crosses the y-axis.

8 0

3 years ago

Two charged particles, Q1, and Q2, are a distance r apart with Q2 = 5Q1 Compare the forces they exert on one another when F1 is

Usimov [2.4K]

Answer:

d) F2 = -F1.

Step-by-step explanation:

According to Coulomb's law of forces on electrostatic charges, the force of attraction is proportional to the product of their charges, and inversely proportional to the square of their distance apart.

What this law means is that both particles will experience an equal amount of force on them, due to the presence of the other particle. This force is not just as a result of their individual charges, but as a result of the product of their charges. Also, the force is a vector quantity that must have a direction alongside its magnitude, and the force on the two particles will always act in opposite direction, be it repulsive or attractive.

5 0

4 years ago

5x−7y=58<br><br> y = -x +2<br><br> Y=<br> X=<br> Please help me walk through it

Lera25 [3.4K]

Answer : x=-2,y=4.
The second equation is multiplied by 5 and give it equation (3) and then subtract the first and third equations .You’ll first get the value ‘y’ and then substitute the value of ‘y’ in the first equation.Finally you’ll get the value of ‘x’.

6 0

3 years ago

It is known that 80% of all brand A external hard drives work in a satisfactory manner throughout the warranty period (are "succ

just olya [345]

Answer:

P (x= 5) = 0.0001

P(x=3) = 0.008699

Step-by-step explanation:

This is a binomial distribution .

Here p = 0.8 q= 1-p = 1-0.8 = 0.2

n= 15

So we find the probability for x taking different values from 0 - 15.

The formula used will be

n Cx p^x q^n-x

Suppose we want to find the value of x= 5

P (x= 5) = 15C5*(0.2)^10*(0.8)^5 = 0.0001

P(x=3) = 15C3*(0.2)^12*(0.8)^3 = 9.54 e ^-7= 0.008699

Similarly we can find the values for all the trials from 0 -15 by substituting the values of x =0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15.

3 0

3 years ago