3 years ago

What is the sum of -12 1/2 +4 1/2

Mathematics

1 answer:

Rufina [12.5K]3 years ago

8 0

Answer:16 2/4

Step-by-step explanation:

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What is (2/3) to the 4th power?

Wewaii [24]

$(\frac{2}{3})^4= \frac{2^4}{3^4}= \boxed{\frac{16}{81}}$

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3 years ago

Help me please!! I need this for my math test!!

Svetlanka [38]

Answer:

y=+3

Step-by-step explanation:

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2 years ago

Solve 3(x-4)=-5 for x

makvit [3.9K]

Answer:

x=7/3

Step-by-step explanation:

3(x-4)=-5

3x-12=-5

3x=7

x=7/3

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2 years ago

Read 2 more answers

Which function models the area of a rectangle with side lengths of 2x - 4 units and x + 1 units?

aalyn [17]

Answer:

Area of rectangle, $f(x)=2x^2-2x-4$ .

Step-by-step explanation:

We are given with side lengths of a rectangle are (2x-4) units and (x+1) units. It is required to find the area of rectangle.

The area of a rectangle is equal to the product of its length and breadth. It is given by :

$A=L\times B$

Let us consider, L = (2x-4) units and B = (x+1) units

Plugging the side lengths in above formula:

$A=(2x-4)\times (x+1)$

$A=2x^2+2x-4x-4\\\\A=2x^2-2x-4$

So, the function that models the area of a rectangle is $f(x)=2x^2-2x-4$ .

5 0

2 years ago

To what expression must 5a square-4a+3 be added to make the sum zero??

pychu [463]

Answer:

Step-by-step explanation:

Additive inverse of (5a² - 4a + 3) should be added to make them zero

(5a² - 4a + 3) + (-5a² + 4a - 3)= 5a² - 5a² - 4a + 4a + 3 - 3

= 0

4 0

2 years ago