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coldgirl [10]
3 years ago
11

Is each pair of expressions equivalent? Select Yes or No. a. 8(−2 + −4) and −2(−8 − 12) b. −4(−2 + 3) and 2(4 − 6) c. −(−3)(−2 +

−10) and 2(−3 − 15)

Mathematics
1 answer:
olga nikolaevna [1]3 years ago
3 0
See photo for solution and mark me as brainliest if you think i helped!

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Marking brainliest:)))))) !!!!!!
Arte-miy333 [17]

Answer:

x>2

Step-by-step explanation:

just divide 8 by both sides and you get x>2

4 0
3 years ago
Read 2 more answers
Which lines are perpendicular to the line y – 1 = (x+2)? Check all that apply.
Ilya [14]

Answer:

none of them

Step-by-step explanation:

Two lines are perpendicular when satisfy the next equation: m1*m2 = -1, where m1 and m2 are the slopes o the lines.

line 1:  

y – 1 = (x+2)

y = x + 3

slope of line 1 = 1

line 2:  

y + 2 = –3(x – 4)

y + 2 = -3*x + 12

y =  -3*x + 10

slope of line 2 = -3

m1*m2 = 1*(-3 ) = -3

They are not perpendicular

line 3:  

y − 5 = 3(x + 11)

y − 5 = 3*x + 33

y = 3*x + 38

slope of line 3 = 3

m1*m3 = 1*3 = 3

They are not perpendicular

line 4:  

y = -3x –  

slope of line 4 = -3

m1*m4 = 1*(-3 ) = -3

They are not perpendicular

line 5:  

y = x – 2

slope of line 5 = 1

m1*m5 = 1*1 = 1

They are not perpendicular

line 6:  

3x + y = 7

y = -3x + 7

slope of line 6 = -3

m1*m6 = 1*(-3 ) = -3

They are not perpendicular

5 0
4 years ago
Read 2 more answers
What is the value of x in the equation 3x-1/9y=10, when y=27
STALIN [3.7K]

Answer: 15

Step-by-step explanation: explation in pic

7 0
3 years ago
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Which of the following is the estimated amount of salt that will dissolve at 47 degrees?
Nina [5.8K]

Ths solubility curve can be used to obtain the amount of salt dissolved (solubility).

<h3>What is the solubility curve?</h3>

The solubility curve is a plot of the solubility of a substance against the temperature. It serves the purpose of being used to show the solubility of a susbtance at different temperatures. This question is incomplete hence we can not be able to deduce the solubility of the salt at this temperature.

If the solubility curve has been ploted, then we can be able to estimate the solubility of the salt from the graph.

Learn more about solubility curve: brainly.com/question/9537462

8 0
3 years ago
PLZ HELP ME!!!!!!!!!!!!!!!!!
Troyanec [42]

The answer is A. 59.49


5 0
3 years ago
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