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2 years ago

A student provided the following solution for an equation. What mistake did the student make?

Mathematics

1 answer:

kvv77 [185]2 years ago

3 0

Answer:

1st choice - 1st line- Distributive property applied incorrectly

Step-by-step explanation:

3(a-2) should be 3a-6

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PLS HELP MEEEEEEE

ExtremeBDS [4]

Answer:

The one that wieghs 10 grams

Step-by-step explanation:

4 0

2 years ago

A trumpet player is currently standing in position (3, 2) on a gridded football field. Her bandleader

photoshop1234 [79]

Answer:

(1, 3)

Step-by-step explanation:

Current position (3,2)

Moving left of the x axis results in a decrease, so: 3 - 2 (As she is moving 2 units to the left)

Moving up results in a positive increase on the y axis, so: 2 + 1 (As she is moving one unit up)

3 0

3 years ago

Solve |5x+30|=10x ......

Orlov [11]

Answer:

Option A

Step-by-step explanation:

We need to solve out ,

$\implies |5x + 30| = 10x$

We can write it as ,

$\implies 5x + 30 = \pm 10x$

On simplyfing further,

$\implies 5x + 30 = 10x \quad or \quad 5x +30=-10x$

On solving the above equation , we will get ,

$\implies \boxed{ x = 6,-2}$

Now we know that the value of modulus is never negative so when we will put x is equal to 2 on the RHS we will get -20 which is not possible . Therefore , the extraneous root is -2 .

Option A is correct .

5 0

2 years ago

Someone help please please someone

aev [14]

(1-52/2+5)=(1-26+5)=(-25+5)=-20

continuing:

-20*2*6*6= -40*6*6=-240*6=-1440

result: -1440

6 0

2 years ago

Read 2 more answers

4. Solve the following inequality: 3y-1 less than 3

mylen [45]

3y - 1 < 3

Isolate the y. Treat the less than or equal like an equal sign.

Do the opposite of PEMDAS. First, add 1 to both sides

3y - 1 (+1) < 3 (+1)

3y < 4

Next, divide 3 from both sides

3y/3 < 4/3

y < 4/3

y < 4/3 is your answer

hope this helps

3 0

2 years ago