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sergiy2304 [10]
3 years ago
10

Which attribute is NOT always true for a rhombus? A) four equal sides

Mathematics
2 answers:
Troyanec [42]3 years ago
8 0

Answer:

THe answer is B four right angles

Step-by-step explanation:

Leona [35]3 years ago
6 0

Answer:

The answer is B

Step-by-step explanation:

I did the Interim Assessment on k12 so i hope this helped

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Substitue the expression 5-3x into the second equation
Rina8888 [55]

Answer:

<h2><u>X= 1</u></h2>

Step-by-step explanation:

<em>y = 5 - 3x</em>

<em>5x - 4y = -3</em>

you substitute for y since you know what y equals.

so, it will then be

5x -4(5 -3x) = -3

you then multiply -4 by everything in the parenthesis

so then it will be

5x - 20 + 12x = -3

Then combine like terms

5x + 12x = 17x

then the new equation is

17x -20 = -3

the next step is to and 20 to both sides since it is negative you do the opposite.

17x - 20 = -3

<u>      + 20     +20</u>

17x = 17 divide 17 by both sides sice 17 is being multiplied by x you do the opposite and divide and you get 1.

<h2><u>so, X = 1</u></h2>
4 0
3 years ago
If 6x - 3y = -12 and 2x + 2y = -10, then y =
ahrayia [7]

Answer:

y=5

Step-by-step explanation:

7 0
2 years ago
What is the product?
Kazeer [188]

Answer:

2) -81t² +16

Step-by-step explanation:

(9t -4)(-9t -4) = (9t x -9t) + (9t x -4) + (-4 x -9t) + (-4 x -4)

                     = -81t² - 36t + 36t + 16

                     = -81t² + 16

4 0
3 years ago
Read 2 more answers
The sum of two numbers is -18. If the first number is 10, which equation represents this situation, and what is the second numbe
ki77a [65]
Don’t know if there’s much of an equation for it, but I guess the best way to write it out is 10 + x = -18. Then, you would subtract the 10 from both sides in order to isolate the x. So then you’re left with x = -28. So -28 is your answer.
8 0
3 years ago
17. The perimeter of rectangle RPQT is 134dm.
Rina8888 [55]

Answer:

\sf 1092 \: dm^2

Refer to the attachment for explication of steps. :)

6 0
2 years ago
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