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3 years ago

13

Which property is illustrated by the statement?

2 answers:

olga_2 [115]3 years ago

3 0

I believe it is Commutative Property of Addition

AveGali [126]3 years ago

3 0

Answer:

Commutative Property of Addition.

Step-by-step explanation:

Given : 3.2 + 4 = 4 + 3.2

To find : Which property is illustrated by the statement.

Solution : We have given

3.2 + 4 = 4 + 3.2

Commutative Property of Addition : if changing the order of the operands does not change the result.

Example : a + b = b + a

2 +3 = 3+2 = 5.

So, We can see 3.2 + 4 = 7.2

4 + 3.2 = 7.2

So, the sum is same after changing the order .

Therefore, Commutative Property of Addition.

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Write a function rule that represents the situation. The almond extract a remaining in an 8-oz bottle decreases by 1/6 oz for ea

katen-ka-za [31]

f(b) = -1/6b + 8. Is the function rule if you want. further explanation just ask.

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3 years ago

New streetlights will be installed along a section of the highway. The posts for the streetlights will be 7.5 m tall and made of

SIZIF [17.4K]

First, we determine the volumes of the posts may it be cylindrical in shape or rectangular prism.

(A) cylindrical:
( π(26.7/100)² - π(24.2/100)²)*(7.5) = 0.3 m³
(B) rectangular prism:
(40/100)²(7.5) - (35/100)²(7.5) = 0.28125 m³

Then, we calculate for the amount of substance
(A) cylindrical: (0.3 m³)(2700 kg/m³) = 810 kg
(B) rectangular prism : (0.28125 m³)(2700 kg/m³) = 759.375 kg

Then, calculate for the costs
(A) (810 kg)($0.38/kg) = $307.8
(B) (759.375 kg)($0.38/kg) = $288.56

Thus, the answer for A is rectangular post
B. About $19.24 can be saved.

6 0

3 years ago

Please help me solve this

Thepotemich [5.8K]

Answer:

t=3.2c

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Prove that sin20sin40sin60sin80=3/16

never [62]

We'll use the following properties of sine and cosine to prove this:

$sin(a)\cdot sin(b) = \frac12(cos(a-b) - cos(a+b))$

$cos(a)\cdot cos(b) = \frac12(cos(a+b) + cos(a-b))$

$cos(180+a) = cos(180-a)$

Then it's just a matter of filling it in...

sin20sin40 * sin60sin80 = 1/2(cos20 - cos60) * 1/2 (cos20 - cos140) =

1/8( cos40 + 1 - cos160 - cos120 - cos40 - cos80 + cos80 + cos200) =

1/8(1 - cos160 - cos120 + cos200) =

1/8(1 - cos160 - cos120 + cos160) =

1/8(1 - cos120 ) = 1/8( 1 + 1/2 ) = 3/16

5 0

3 years ago

If YX=YZ, X is 9x-23 and Z is 4x+9 find Z?

Zina [86]

Answer:

6.4

Step-by-step explanation:

9x-23=4x+9

5x=32

x=6.4

If I'm right, brainliest pls?

5 0

3 years ago