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zhuklara [117]
3 years ago
12

Name the property or properties illustrated by the statement if x+5=3 and 3=y, then x+5=y

Mathematics
1 answer:
oee [108]3 years ago
3 0
It is substitution. Because you are substituting 3=y into x+5=3
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What rational number equals 0.3 repeating
schepotkina [342]
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3 years ago
The sides of an equilateral triangle are 8 units long.what is the length of the altitude of the triangle?
dedylja [7]

Answer:

Equilateral triangle implies each angle is 60 degree.

And any median is the altitude.

So, NT perpendicular LM, where T is the midpoint of [ML];

We use the Pythagorean Theorem in right triangle NTL ( NT = h; NL = a;

LT = a / 2 );

h² = a² - (a/2)² = a² - a²/4 = 4a²/4 - a²/4 = 3a²/4 ;

It follows that

h = √(3a²/4) = a√3/2 ≈ 0,866*a;

But, a = 8;

h ≈ 0,866 * 8 ≈ 6,928;

Step-by-step explanation:


6 0
4 years ago
Kite ABCD is reflected over the line y = x. What rule shows the input and output of the reflection, and what is the new coordina
JulsSmile [24]

<u>Answer:</u>

(x,y)→(y,x); A' is at (2, −7)

<u>Step-by-step explanation:</u>

According to the given image, the coordinates of the kite ABCD are:

A (-7, 2)

B(-5, 3)

C(-2, 2)

D(-5, 1)

Kite ABCD is then reflected over the line y = x, the main rule to find the coordinates of the images is (y, x).

So for point A (-7, 2), the coordinates of the point A' after reflecting over the line y=x will be A' (2, -7).


6 0
3 years ago
Read 2 more answers
If 32 people are each served a pint of lemonade, how many gallon pitchers are needed to hold all of the lemonade?
Elenna [48]

32 people each get a pint and 1 pint is roughly 0.125 gallons so assuming that the pitcher can hold one gallon each then it would be 4 pitchers  D is your answer.

7 0
3 years ago
Broccoli costs $1.50 per pound at a store. How much money does 32 ounces of broccoli cost?
Stella [2.4K]

Answer:

$3.00

Step-by-step explanation:

First you will see how much ounces 1 pound is and it will be 16 then if you multiply 16 by 2 you get 32 so I'd be 2 pounds and If 1 pound is $1.50 then 2 pounds would be $3.00

8 0
3 years ago
Read 2 more answers
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