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3 years ago

7

How to solve an algebraic expression by putting values of unknown

1 answer:

andrey2020 [161]3 years ago

7 0

Answer:

Step-by-step explanation:

Algebraic expressions tend to have atleast one unknown variable in it. In order to solve the expression we need to assign a fixed value to that variable or isolate it if the expression is equal to another value. For example, in the following expression we have the variable x, if we give it a value of 5 we simply solve like a regular expression...

5x + 3

5(5) + 3

25 + 3

28

Therefore, if we swap the variable x for the value of 5 we would get a value of 28 in this algebraic expression.

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The diagram above shows a square PQUV and a regular pentagon QRSTU.<br>Find the value of x.

Misha Larkins [42]

Answer:

Each interior angle of a pentagon equals 108 degrees.

Therefore Angle U = 108 degrees.

The angle of the square is 90 degrees.

Therefore, Angle x = 360 - 108 -90 degrees = 162 degrees!

Step-by-step explanation:

3 0

3 years ago

At the beginning of its route, a garbage truck accelerates at 10ms2 as it is driven down the road. By the end of the route, the

Dmitry [639]

Answer:

$2.5\ m/s^2$

Step-by-step explanation:

Newton's Second Law: Force on a body is equal to the product of mass and acceleration of the centre of the mass of the body.

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Initially:

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At the end of the road:

$Let\ mass=4\times m\ kg\\\\acceleration=a\ m/s^2\\\\Force(F)=4m\times a=4ma$

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8 0

3 years ago

Need help on these. Don't answer if you don't know. I'm looking at YOU, bmdaniel1

andre [41]

Answer:

use m a t h w a y

really easy to use

works for all algebraic equations

Step-by-step explanation:

7 0

3 years ago

Write y=-4/5x-2 in standard form using integers?

kogti [31]

Answer:

4/5x + y = -2

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

HELP ME PLZ I NEED HELP

german

Answer:

A

Step-by-step explanation:

$\frac{12}{a} = \frac{9}{b} => 12b = 9a$

$12 * 1.5 = 9 * 2$

$18 = 18$

This option works

5 0

3 years ago