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3 years ago

Rewarding BRAINLY for correct answer

Mathematics

2 answers:

mina [271]3 years ago

6 0

The answer to this question is 4,-4

Vadim26 [7]3 years ago

3 0

Answer is: 4, -4

I hope this helps

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What property is used to rewrite (x + 2)(y + z) as y (x + 2) + z (x + 2)

andreyandreev [35.5K]

Answer:

Distributive Property

Step-by-step explanation (if you were to show the steps):

(x+2)(y+z) (first expression)

xy + xz + 2y + 2z (Distributive Property of Multiplication)

yx + 2y + zx + 2z (use the Commutative Property of Addition and Commutative Property of Multiplication to group xy (also known as yx) and 2y together, and to group xz (also known as zx) and 2z together)

y(x + 2) + z(x + 2) (use factoring to get the rewritten expression at the end)

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3 years ago

The circumference of a circle is 137 m. Find its diameter, in meters.

lubasha [3.4K]

Step-by-step explanation:

$137 = 2\pi \times r \\ r = \frac{137}{2\pi} = 21.8045232 \\ diameter = 2 \times r = 43.609 \\ = 43.61 \: m$

6 0

3 years ago

Match the real-world problem to its constant of proportionality.

BabaBlast [244]

Answer:

a. $18.36 for 3 pizzas : k = 6.12

b. $4.17 for 3 pounds of bananas . k = 1.39

c. $16.48 for 4 pounds of potatoes . k = 4.12

d. 2 cups of flour to make 24 cookie . k = 2

Step-by-step explanation:

PROPORTIONALITY:

Two quantities x and y are said to proportional to each other

if for x ∝ y , x = y k.

Here, k i s called the PROPORTIONALITY CONSTANT.

⇒ $x \propto y \implies k = \frac{x}{y}$

Now, for the given quantities:

a. $18.36 for 3 pizzas [box]

Here, $k = \frac{18.36}{3} = 6.12$

So, the proportionality constant is 6.12.

b. $4.17 for 3 pounds of bananas [box]

Here, $k = \frac{4.17}{3} = 1.39$

So, the proportionality constant is 1.39.

c. $16.48 for 4 pounds of potatoes [box]

Here, $k = \frac{16.48}{4} = 4.12$

So, the proportionality constant is 4.12.

d. 2 cups of flour to make 24 cookies

Here, $k = \frac{24}{2} = 12$

So, the proportionality constant is 12

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4 years ago

Saras savings account balanced changers by $34 one week and by- $67 the next week.wich amount represents the greatest change?

Eduardwww [97]

The greatest change is
$ 34

4 0

4 years ago

Round to the place of the underlined digit 10,450

love history [14]

10,400 Maybe you didn't underline anything

3 0

3 years ago

Read 2 more answers