All categories

3 years ago

What does (- 1.2) × (0.4) equal?

Mathematics

1 answer:

klasskru [66]3 years ago

7 0

The answer is -0.48.

First, you multiply 1.2 to 4 to get 4.8. Then, since the 4 wasn't 4 but 0.4, you have to divide 4.8 by 10 to get 0.48. Finally, since -1.2 is negative, you put a negative sign in front of 0.48 to get -0.48.

You might be interested in

Write two equivalent expressions to represent the perimeter of this rectangle.

Harlamova29_29 [7]

P= (2)(x-2)+(2)(5)
P= (x-2)+(x-2)+5+5

8 0

1 year ago

Read 2 more answers

What are the solutions to the quadratic equation below x^2+20x+100=7

aleksandrvk [35]

First you must have the quadratic equal to zero. In order to do this you must subtract 7 to both sides

x^2 + 20x + (100 - 7) = 7 - 7

x^2 + 20x + 93 = 0

Now you must find two numbers who's sum equals 20 and their multiplication equal 93

Are there any? NO!

This means that you have to use the formula:

$\frac{-b±\sqrt{b^{2} - 4ac} }{2a}$

In this case:

a = 1

b = 20

c = 93

$\frac{-(20) plus/minus\sqrt{20^{2} - 4(1)(93)} }{2*1}$

$\frac{-20 plus/minus\sqrt{400 - 372} }{2}$

$\frac{-20 plus/minus\sqrt{28} }{2}$

^^^We must simplify √28

√28 = 2√7

so...

$\frac{-20 plus/minus 2\sqrt{7} }{2}$

simplify further:

$-10 plus/minus\sqrt{7$

-10 + √7

-10 - √7

***plus/minus = ±

Hope this helped!

~Just a girl in love with Shawn Mendes

7 0

3 years ago

What is 33+ 50<br> make as brainlest

Vika [28.1K]

Answer:

the answer is 83 because 5+3=8 and 3+0=3

8 0

3 years ago

Read 2 more answers

Evaluate ƒ( x ) = x 2 + 1 for ƒ(10).

vlabodo [156]

F(x) = x^2 + 1 f(10)
f(10) = 10^2 + 1
f= 101

7 0

3 years ago

Item 7

Katyanochek1 [597]

i am sorry i was gonna anwer but i keep getting it wrong mys elf

4 0

3 years ago