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frez [133]
3 years ago
7

Each step in a procedure to solve this equation is shown. Equation: 5x – 7 = 3(x + 1) Step 1: 51 – 7 = 3x + 3 Step 2: 2x – 7 = 3

Step 3: 2x = -4 Step 4: 2 = -2 In which step is the first error made? 0 from the original equation to step 1 from step 1 to step 2 O from step 2 to step 3 from step 3 to step 4​
Mathematics
1 answer:
NeTakaya3 years ago
5 0

Answer:

I think the first mistake was made in step 1

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X + 2xy- y^2 = 2<br><br> find dy/dx using implicit differentiation
AleksandrR [38]

Answer:

hope that helps

Step-by-step explanation:

3x^2+2xy+y2=2

6x + 2y + 2xy' + 2yy' = 0

x=1 ==> y=-1

6(1) + 2(-1) + 2(1)y' + 2(-1)y' = 0

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(e) undefined

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8 0
3 years ago
If a movie theater sells 400 tickets for a total of
Oksanka [162]

Answer:

they would make $25,500

Step-by-step explanation:

6,800/400=17

1,500*17=25,500

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8 0
3 years ago
Which symbol creates a true sentence when x equals 3?
Marta_Voda [28]
Hi <span>Tysona90!
Let's write it with the X as a 3
8*3-4*3_7(10-3) Now let's solve it 8*3 is 24 and 4*3 is 12 so then we do 24-12 which is 12. So now we have 12_7(10-3) so let's solve the other half which is 10-3 is 7 times 7 (since parenthesis can also mean multiplication) which is 49 so we now have 12_49 which means the answer is A.
Hope this helps!</span>
4 0
4 years ago
What are the factors of x^2 + 3x -4 ?​
algol13

Answer:

1 and -4

Step-by-step explanation:

cause when you factor the equation its (x-1)(x+4)

4 0
3 years ago
Read 2 more answers
Please somone help me<br> 40 points <br> will mark brainliest
cestrela7 [59]

Answer:

the answer is in the picture below

Step-by-step explanation:

7 0
3 years ago
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