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2 years ago

What are the coefficients in the expression x-3y-7xy+4?

Mathematics

1 answer:

IRINA_888 [86]2 years ago

8 0

The coefficients in the expression x-3y-7xy+4 is -3 and -7.

The coefficient of x are 1

-3y=3

-7xy=-7

What is coefficients?

A coefficient is a number or quantity that is associated with a variable. Typically, it is an integer multiplied by the variable and written next to it. The variables which do not have a number with them are assumed to be having 1 as their coefficient. For example, 3 is the coefficient of x in the expression 3x, but 1 is the coefficient of x2 in the expression x2 + 3. A coefficient, in other words, is a multiplicative factor in terms of a polynomial, a series, or any expression. Consider the following expression, which shows that 5 is the x2 coefficient and 8 is the y coefficient.

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Rob cuts grass as a job. A neighbour asked Rob to give a quote for his backyard. Rob noticed that the yard was a rectangle shape

Montano1993 [528]

Answer: 11780.9316

Step-by-step explanation:

just do 16.2 times 6.7 times 16.2 times 6.7

6 0

4 years ago

Divide. 0.78÷106 0.00078 0.000078 0.0000078 0.00000078

Crazy boy [7]

0.78 ÷ 106 = 39/5300
= 0.007358490566037

Explanation: Convert 0.78 into a fraction
0.78 = 39/50. Next you do, 39/50 ÷ 106.

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3 years ago

Find all zeros.

Aleks [24]

Answer:

look at degree of polynomial

Step-by-step explanation:

6 0

3 years ago

A light bulb consumes 4560 watt-hours in 4 days and 18 hours. how many watt-hours does it consume per day?

zaharov [31]

This is actually an easy one.

4 day= 24 hours X 4 = 96 hrs.

4560 = 96 hrs.

4560/96 = per hr.

47.5 watts per hr.

Since 1 day = 24 hrs, 47.5 X 24 = 1140 Watts per day.

See? Simple and easy if you solve parts at a time!

4 0

4 years ago

The radius of the base of a cylinder is 10 centimeters, and its height is 20 centimeters. A cone is used to fill the cylinder wi

klasskru [66]

The number of times one needs to use the completely filled cone to completely fill the cylinder with water is 24.

In the question, we are given that the radius of the base of a cylinder is 10 centimeters, and its height is 20 centimeters. A cone is used to fill the cylinder with water. The radius of the cone's base is 5 centimeters, and its height is 10 centimeters.

We are asked to find the number of times one needs to use the completely filled cone to completely fill the cylinder with water.

The volume of a cylinder is calculated using the formula, V = πr²h.

The volume of a cone is calculated using the formula, V = (1/3)πr²h.

In both the formulas r is the radius and h is the height.

The volume of the given cylinder using the formula is π(10)²(20) cm³ = 2000π cm³.

The volume of the given cone using the formula is (1/3)π(5)²(10) cm³ = (250/3)π cm².

The number of times one needs to use the completely filled cone to completely fill the cylinder with water =

The volume of the given cylinder/The volume of the given cone,

or, The number of times one needs to use the completely filled cone to completely fill the cylinder with water = {2000π cm³}/{(250/3)π cm²},

or, The number of times one needs to use the completely filled cone to completely fill the cylinder with water = 24.

Thus, the number of times one needs to use the completely filled cone to completely fill the cylinder with water is 24.

Learn more about the volume of a cylinder and cone at

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8 0

2 years ago