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Free_Kalibri [48]

3 years ago

13

The associative property of addition says you can change the( order,grouping,operation) of addends without affecting the sum.Whi

ch one?

1 answer:

PIT_PIT [208]3 years ago

7 0

grouping: (a+b)+c = a+ (b+c)

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Help plz! (a + b - c)(a + b + c) multiplying polynomials

saul85 [17]

Answer:

a^2 + 2ab + b^2 - c^2

Step-by-step explanation:

When you multiply all the terms together you get a^2 + ab + ac + ab + b^2 + bc - ac - bc - c^2. Then you can just combine like terms and simplify it to a^2 + 2ab + b^2 - c^2. Hope this helps :)

5 0

3 years ago

The formula for the area of a triangle is A-1bh. Solve for b.

Nady [450]

Answer:

<h2>b = <u>2A</u></h2><h2> h</h2><h2 />

Step-by-step explanation:

A = 1/2 b h

A2 = b h

b = <u>2A</u>

h

5 0

3 years ago

Read 2 more answers

Explain why each table determine if y is proportional to x .

lesya692 [45]

Answer:

see explanation

Step-by-step explanation:

If y is proportional to x then the equation relating them is

y = kx ← k is the constant of proportion

To find k divide both sides by x

k = $\frac{y}{x}$

This value must be constant for all ordered pairs, thus

k = $\frac{4}{6}$ = $\frac{2}{3}$

k = $\frac{6}{9}$ = $\frac{2}{3}$

k = $\frac{8}{12}$ = $\frac{2}{3}$

k = $\frac{2}{3}$

Since k is constant for all ordered pairs then y is proportional to x

4 0

3 years ago

What solid figure is shown below? triangular pyramid square pyramid rectangular prism cylinder

Gennadij [26K]

RECTANGULAR PRISMS

also known as cuboids ....are all around us. A few of the examples are books, boxes, buildings, bricks, boards, doors, containers, cabinets, mobiles, and laptops.

:-)

5 0

3 years ago

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Faith Sherlock received her monthly pension check of $1,247.26. From that amount, she transferred $150 to a savings account and

Katyanochek1 [597]

Answer:

$\boxed{\$780.59}$

Step-by-step explanation:

Monthly pension = $1247.26

Savings = $150.00

Electric = 156.33

Gas = 9.38

Water = 98.42

TV = 52.54

Total bills = <u> 466.67 </u>

Remaining = $ 780.59

$\text{Faith has }\boxed{\textbf{\$780.59}} \text{ remaining from her pension check}$

4 0

3 years ago