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tatiyna
3 years ago
11

81x2/9x-7y + 49y2/7y-9x​

Mathematics
2 answers:
Snezhnost [94]3 years ago
7 0

Answer:

9x3+7y3−9x−7y

Step-by-step explanation:

simplify

fenix001 [56]3 years ago
5 0

Answer:

9x3+7y3−9x−7y

Step-by-step explanation:

just simplify then u get this answer

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I need the answer to the blank questions
blondinia [14]
We have that
n 12 part a)
actual distance-------------> 124 miles
map distance----------------> 4 cms
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n 12 part b) 
map distance=21 cms
actual distance?
[actual distance]=[map distance]*factor scale-----------> 21*(31)=651 miles

n 13) 
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8 0
4 years ago
Question 5 (5 points)
algol13

Answer:

B. -2x-6

Step-by-step explanation:

First distribute the minus sign (remember that the "-" is actually a "-1")

3x-5+-5x-1

Now group like terms

3x-5x-5-1

And solve

-2x-6

3 0
3 years ago
X-intercept=2 y-intercept=-5, and the slope is 5/2. Write an equation in standard form​
lara31 [8.8K]
I think it’s y=2x-5 not sure tho
7 0
3 years ago
What are the solutions of the equation<br> x^2 - 30 = x?
sashaice [31]

Answer:

x = 6 , − 5

Step-by-step explanation:

Move  x   to the left side of the equation by subtracting it from both sides.  x^ 2 − 30 − x = 0

x2-30-x=0

Use the quadratic formula to find the solutions. − b ± √ b 2 − 4 ( a c )/ 2 a  

-b±b2-4(ac)/2a  

Substitute the values  

a = 1  ,  b = − 1  , and  c = − 30  

into the quadratic formula and solve for  x

x . 1 ± √ ( − 1 ) 2 − 4 ⋅ ( 1 ⋅ − 30 )/ 2 ⋅ 1    

Simplify.

x = 1 ± 11/ 2    

The final answer is the combination of both solutions.

x = 6 , − 5

8 0
4 years ago
Find the 100th term of an=17-4(n-1)
egoroff_w [7]

Answer:

Find the 100th term of an=17-4(n-1)

Step-by-step explanation:

Arithmetic sequence : -17, -14, -11, -8, ...

Here the first term , a 1 = -17

Common difference :    d = -14 - (-17) =3

4 0
2 years ago
Read 2 more answers
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