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3 years ago

What type of arithmetic property isillustrated; a(b + c) = ab + ac?

Mathematics

1 answer:

Anit [1.1K]3 years ago

4 0

Answer:

Distrubutive property

Step-by-step explanation:

Associative: a(bc) = (ab)c

Commutative: a+b=b+a and ab=ba

Distibutive: a(b+c)=ab+ac

Distributive matches the discription.

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Evaluate the expression 4−(1−4)−2 =

Cloud [144]

Parentheses first. 1-4= -3. 4-3=1. 1-2=-1.

The answer is -1.

3 0

3 years ago

Read 2 more answers

A projectile is launched into the air. The function h(t) = –16t2 + 32t + 128 gives the height, h, in feet, of the projectile t s

Zinaida [17]

Answer:

t = 4 seconds

Step-by-step explanation:

The height of the projectile after it is launched is given by the function :

$h(t)=-16t^2+32t+128$

t is time in seconds

We need to find after how many seconds will the projectile land back on the ground. When it land, h(t)=0

So,

$-16t^2+32t+128=0$

The above is a quadratic equation. It can be solved by the formula as follows :

$t=\dfrac{-b\pm \sqrt{b^2-4ac} }{2a}$

Here, a = -16, b = 32 and c = 128

$t=\dfrac{-32\pm \sqrt{(32)^2-4\times (-16)(128)} }{2\times (-16)}\\\\t=\dfrac{-32+ \sqrt{(32)^2-4\times (-16)(128)} }{2\times (-16)}, \dfrac{-32\- \sqrt{(32)^2-4\times (-16)(128)} }{2\times (-16)}\\\\t=-2\ s\ \text{and}\ 4\ s$

Neglecting negative value, the projectile will land after 4 seconds.

4 0

3 years ago

Solve the equation 6-x-x=18 A. -6 B. 6 C. 9 D. -9

Veronika [31]

A. x = -6
6-x-x = 18
6-2x =18
-2x = 12
x = -6

4 0

3 years ago

00:00

masya89 [10]

Answer:

Part A = the middle one

Part B = 4 days

Step-by-step explanation:

1,300 / 4 = 325

325 x 4 = 1,300

8 0

3 years ago

Read 2 more answers

Answer those two questions please

yuradex [85]

Answer:

1. 3212 = 3.212 X 10 of 3

2. because it easier to write and read

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3 years ago

What type of arithmetic property isillustrated; a(b + c) = ab + ac?​

What type of arithmetic property isillustrated; a(b + c) = ab + ac?