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Shalnov [3]
3 years ago
9

What do we mean by the value of an expression?

Mathematics
1 answer:
Alexxx [7]3 years ago
7 0

We have learned that, in in an algebraic expression, letters can stand for numbers. When we substitute a specific value for each variable, and then perform the operations, it's called evaluating the expression. Let's evaluate the expression 3y + 2y when 5 = y.

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I need help!!!!!<br> #1<br> 5 1/2 + 0.6x=16<br> #2<br> 5/9 divided by x = 3 3/4<br> Thanks!!!!!!!1
nikdorinn [45]
Use the internet ok!!!!!!
4 0
3 years ago
Read 2 more answers
Find the area of a triangle whose base is x^2+2x+4 and whose height is 2x^2x +2x+6
kkurt [141]
The base of the triangle is x² + 2x + 4
The height of the triangle is 2x² + 2x + 6
The area of the triangle is
A = (1/2) b h
Substituting
A = (1/2)(x² + 2x + 4)(2x² + 2x + 6)
Which can be expanded or factored
6 0
3 years ago
Patricia purchased x meters of fencing. She originally intended to use all of the fencing to enclose a square region, but later
sergejj [24]

Answer:

  (y^2)/4 square meters

Step-by-step explanation:

For a perimeter length of x, the side of a square will be x/4 and its area will be (x/4)^2.

If one side of the square is shortened by y/2 and the adjacent side is lengthened by y/2, then the difference in side lengths will be y. The area of the resulting rectangle will be ...

  (x/4 -y/2)(x/4 +y/2) = (x/4)^2 -(y/2)^2

That is, the difference in area between the square and the rectangle is ...

  (x/4)^2 - ((x/4)^2 -(y/2)^2) = (y/2)^2 = y^2/4

The positive difference between the area of the square region and the area of the rectangular region is y^2/4 square meters.

5 0
3 years ago
Ray’s weight increased by 11% in the last two years. If he gained 16.5 pounds, what was his weight two years ago?
kap26 [50]
2 years ago he weighed 119.5 pounds
4 0
3 years ago
Solve this equation for x 0.95 = log x
Lelechka [254]

Answer:

8.91

Step-by-step explanation:

Given:  0.95 = log x,

we can conclude that:

    0.95            log x

10             =  10

                                                          0.95

which in turn is equivalent to x = 10            whose value is  8.91

5 0
3 years ago
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