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3 years ago

11

Show that (−3) × (−4) = +12 using the distributive property.

1 answer:

Kobotan [32]3 years ago

3 0

-3x-4= +12

X negative 3 and 4 then add +12 to it.

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Answe these two, please show your work

I am Lyosha [343]

8+5x(-4)-(-6+-2)

13 x -4 - -6+-2

-52 - -6 + -2

58 + -2

-56

5 0

3 years ago

Read 2 more answers

A ticke cost 40 dollars suppose every seat in the first ten rolls are filled what is the total revenue from those seatss

KonstantinChe [14]

If a single ticket costs 40 dollars then the ten seats will generate the following

$40 x 10= $400

7 0

3 years ago

Write a quadratic function, in standard form, that fits the set of points. Solve it as a system of three equations. (-4, 9), (0,

Tresset [83]

Answer:

$\boxed{y=2x^2+4x-7}$

Step-by-step explanation:

Let the quadratic function be

$y=ax^2+bx+c$

We substitute $(-4,9)$ into the equation to obtain;

$9=a(-4)^2+b(-4)+c$

$\Rightarrow 9=16a-4b+c---(1)$

We substitute $(0,-7)$ to obtain;

$-7=a(0)^2+b(0)^2+c$

$\Rightarrow c=-7---(2)$

We finally substitute $(1,-1)$ to obtain;

$-1=a(1)^2+b(1)^2+c$

$\Rightarrow -1=a+b+c---(3)$

We put equation (2) into equation (1) to get;

$9=16a-4b-7$

$16a-4b=16$

$\Rightarrow 4a-b=4---(4)$

$\Rightarrow -1=a+b-7$

$\Rightarrow a+b=6---(5)$

We add equation (4) and (5) to get;

$4a+a=6+4$

$\Rightarrow 5a=10$

$\Rightarrow a=2$

We put $a=2$ into equation (5) to get;

$2+b=6$

$\Rightarrow b=6-2$

$\Rightarrow b=4$

The reqiured quadratic function is

$y=2x^2+4x-7$

7 0

3 years ago

Find the value of I in the triangle shown below.<br> T =<br> 56<br> 312

Cerrena [4.2K]

Answer:

93 degrees

Step-by-step explanation:

The angles in a triangle add to be 180 so

180-56-31=x

x=93

8 0

3 years ago

NEED ANSWER IN LESS THAN 10 MINS!!

Naddik [55]

Heyehejrjrjjdnsnnsne

5 0

3 years ago