3 years ago

Simplify 3/4(1/2*-12)+4/5

Mathematics

1 answer:

Lyrx [107]3 years ago

7 0

The exact form is:
-37/10

The decimal for is:
-3.7

The mixed number for is:
-3 7/10

You might be interested in

How to put 35.99 in a mix number

Anon25 [30]

35 99/100 (35 wholes 99 over 100)

6 0

4 years ago

Witch is bigger 3/6 or 3/8 ?

siniylev [52]

3/6. If you have the same Numerator (in this case 3), the choice with the smaller denominator (6 or 8) is the larger of the numbers

3 0

3 years ago

Read 2 more answers

What is the answer???

lisov135 [29]

Answer:

The answer is A.) 1

=) Hope this helps (=

5 0

3 years ago

Read 2 more answers

A square pyramid and its net are shown below. What is the surface area of the pyramid?

jasenka [17]

I think the answer is 800

6 0

4 years ago

(5n2 – 4nm - 9m²) + (7n2 + 4nm +8m²) =

Flauer [41]

Answer:

$\left(5n^2-4nm-9m^2\right)+\left(7n^2+4nm+8m^2\right)=12n^2-m^2$

Step-by-step explanation:

Given the expression

$\left(5n^2\:-\:4nm\:-\:9m^2\right)\:+\:\left(7n^2\:+\:4nm\:+8m^2\right)$

Remove parentheses: (a) = a

$=5n^2-4nm-9m^2+7n^2+4nm+8m^2$

Group like terms

$=5n^2+7n^2-4nm+4nm-9m^2+8m^2$

Add similar elements: $5n^2+7n^2=12n^2$

$=12n^2-4nm+4nm-9m^2+8m^2$

Add similar elements: $-4nm+4nm=0$

$=12n^2-9m^2+8m^2$

Add similar elements: $-9m^2+8m^2=-m^2$

$=12n^2-m^2$

Therefore, we conclude that:

$\left(5n^2-4nm-9m^2\right)+\left(7n^2+4nm+8m^2\right)=12n^2-m^2$

5 0

3 years ago