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Finger [1]
4 years ago
8

Of 10Simplify-2x³ – y – 2z² + 4x³ – 2y + 3z²​

Mathematics
1 answer:
bonufazy [111]4 years ago
5 0

Answer:

2x³ - 3y + z²

Step-by-step explanation:

-2x³ – y – 2z² + 4x³ – 2y + 3z²​     Combine like terms

-2x³ + 4x³ – y – 2y – 2z²  + 3z²​

2x³ - 3y + z²

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What is the surface area?<br><br> 5 cm<br> 1 cm<br> 3 cm
dimaraw [331]

Answer:

46 cm

Step-by-step explanation:

2(5*1) = 10

2(1*3) = 6

2(3*5) = 30

add all those together and you get 46

4 0
3 years ago
What is the length of side TS?
-Dominant- [34]
We know that

 in the triangle TQS
<span>applying the Pythagorean theorem
QS</span>²=TS²+TQ²---------> TQ²=QS²-TS²--------> TQ²=18²-9x²-----> equation 1

in the triangle TRS
TS²=TR²+RS²--------------> TR²=TS²-RS²-------> TR²=9x²-144----> equation 2

in the triangle QTR
TQ²=TR²+36-----------> equation 3


<span>I substitute 1 and 2 in 3
</span>18²-9x²=9x²-144+36--------> 18x²-432=0------> x²=24-------> x=√24
x=2√6
TS=3*x------> 3*2√6-----> 6√6
TS=6√6 units

the answer is
TS=6√6 units 
<span>6 is the square root of 6 units</span>
6 0
3 years ago
Read 2 more answers
A line with a slope of -4 has a coordinate of (0,3). If the other coordinate is (6,t),
s2008m [1.1K]

Answer:

Alrighty! So this is what we know:

Slope (m) = (-4)

Co-ordinate (0,3)

Co-ordinate 2 (6,t)

t = ?

Let's find our equation...

y=mx+b <-- just plug what we know in...

3=(-4)0+b

3=0+b

b=3

We just found b! woohoo

Now what is t? t is a value we need to know WHICH IS the y value of a co-ordinate that corresponds to when x is 6, as we know a co-ordinate is expressed as --> (x value, y value).

SO-

t=y

plug it in our equation...

y=mx+b

t=(-4)x+3

t=(-4)(6)+3

t=(-24)+3

t=(-21)

SOOOOOOOO WE HAVE OUR T!! just write a therefore statement like "therefore the value of t is -21." and you're set! hope this helped, any questions? ask in the comment section. :)

Step-by-step explanation:

7 0
3 years ago
Can u guy give me the AWNSER for number 3 or which ever on u know the Awnser to plz
FinnZ [79.3K]
3. Three and four tenths. 3+0.4=3.4
4. Two and fifty-one hundredths. 2+0.51=2.51
5. 8/10
6. 0.05
7. 46/100
8. 0.6
9. 9/10
10. 0.35

1 and 2 are correct btw
3 0
3 years ago
Is quadrilateral ABCD a square? Show your work.
stepladder [879]

Answer:

yes

Step-by-step explanation:

yes, the slope and distance from each side is equal to another

3 0
3 years ago
Read 2 more answers
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