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-Dominant- [34]
3 years ago
7

Please show your work with each expression. Simplify.

Mathematics
1 answer:
Alina [70]3 years ago
6 0
(replace the variables) 6(9)-2(5)^2
(simplified) 54-10^2.... 54-100=-46
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Please need urgent help. It's my final question. I'll have be brainliest!!
Alecsey [184]
X=32

All triangles add up to 180 degrees so if the right angle is 90 degrees then you have 90 degrees left. Next, you take the 2x and x-6 and plug them into the equation 3x-6=90. Once you solve that you get x=32.
8 0
3 years ago
PLZZZZ ANSWER THIS..
slamgirl [31]

Answer:

In 3 - 5:  

3 + (-5), and -5 + 3

In 5 - 3:

5 + (-3), and -3 + 5

Step-by-step explanation:

Category : 3 - 5

Values must equal -2

3 + (-5) = 3 - 5 = -2

-5 + 3 = -2

Category : 5 - 3

Values must equal 2

5 + (-3) = 5 - 3 = 2

-3 + 5 = 2

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

6 0
2 years ago
Read 2 more answers
System AAA \text{\quad}start text, end text System BBB
lisabon 2012 [21]

Answer:

replace one question with itself where the same quantity is added to both sides and yes

Step-by-step explanation:

The other answer is wrong :)

4 0
2 years ago
Read 2 more answers
What two numbers add to 9 and multiply to -70
Alborosie
X, y - the numbers

The numbers add to 9 and multiply to -70.
x+y=9 \\
xy=-70 \\ \\
y=9-x \\
xy=-70 \\ \\
\hbox{substitute 9-x for y in the second equation:} \\
x(9-x)=-70 \\
9x-x^2=-70 \\
-x^2+9x+70=0 \\
-x^2+14x-5x+70=0 \\
-x(x-14)-5(x-14)=0 \\
(-x-5)(x-14)=0 \\
-x-5=0 \ \lor \ x-14=0 \\
x=-5 \ \lor \ x=14 \\ \\
y=9-x \\
y=9-(-5) \ \lor \ y=9-14 \\
y=14 \ \lor \ y=-5 \\ \\
(x,y)=(-5,14) \hbox{ or } (x,y)=(14,-5)

The numbers are -5 and 14.
4 0
2 years ago
What is $65.04 times 12 ?
Flura [38]

$780.48 is the answer

4 0
3 years ago
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