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3 years ago

Which phrase correctly represents the algebraic expression 3t?

2 answers:

ivann1987 [24]3 years ago

7 0

Answer: B

Explanation: When a number is directly followed by a variable (ex. 10y), it indicates multiplication. So in this case, when you dissect the expression 3t, it becomes 3*t. For both addition and subtraction, it would be the normal format: 3+t and 3-t. For division it would be 3 over t (fraction format).

Hope that helps シ

olga_2 [115]3 years ago

3 0

Answer is B
when a number is by a variable with nothing between them like a plus minus or division sign you always multiply

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Akiko leaves the mall and drives directly west at a speed of 60 mph. At the same time, Kosuke leaves the mall and drives 40 degr

Ostrovityanka [42]

You know that Akiko is 45 miles from the origin...Kosuke is (135/4) miles from the origin... You can draw a figure to clearly see the situation.

you "know" that the angle between their routes is 140º 

the side opposite (140º) is the distance between them... 

c^2 = (45)^2 + (135/4)^2 - 2(45)(135/4) cos 140 

c ≈ 74.1 mile

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3 years ago

1/2 ( x - 4 ) = 1/3 ( x + 2) pls help me

Eddi Din [679]

Answer:

x=16

Step-by-step explanation:

1/2 ( x - 4 ) = 1/3 ( x + 2)

distribute both sides

1 /2 (x−4)= 1/ 3 (x+2)

( 1 /2 )(x) + ( 1/ 2 )(−4) =( 1 /3 ) (x)+( 1/3 )(2)(Distribute)

1 /2 x+−2= 1 /3 x+ 2 /3

Step 2: Subtract 1/3x from both sides.

1/2x -2 -1/3 x

x= 1 /3 x + 2/3 − 1/ 3 x

1 /6 x−2= 2/ 3

Step 3: Add 2 to both sides.

1 /6 x −2+2= 2/ 3 +2

1 /6 x = 8 /3

Step 4: Multiply both sides by 6.

6*( 1/6 x) =6*( 8 /3 )

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3 years ago

Read 2 more answers

What is the factored form of y=x^3+3x^2-x-3 and what the zeros

PSYCHO15rus [73]

y = x³ + 3x² - x - 3
0 = x³ + 3x² - x - 3
0 = x²(x) + x²(3) - 1(x) - 1(3)
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0 = (x² - 1)(x + 3)
0 = (x² + x - x - 1)(x + 3)
0 = (x(x) + x(1) - 1(x) - 1(1))(x + 3)
0 = (x(x + 1) - 1(x + 1))(x + 3)
0 = (x - 1)(x + 1)(x + 3)
0 = x - 1 or 0 = x + 1 or 0 = x + 3
+ 1 + 1 - 1 - 1 - 3 - 3
1 = x or -1 = x or -3 = x

Solution Set: {-3, -1, 1}

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3 years ago

y = 4x + 3 y = - 1 4 x - 5 What is the BEST description for the lines represented by the equations? A) horizontal B) intersectin

storchak [24]

It is B. Because perpendicular is opposite reciprocal

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3 years ago

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Jamal deposits $1000 into a savings account on his 18th birthday. If the 2% interest is compounded yearly, how much will he have

dalvyx [7]

The number of years (n) that the deposit stayed in his balance is given by: 65 - 18 = 47 years.

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Given that Jamal deposits P = $1000 into a savings account on for n = 47years at 2% interest compounded yearly, the amount in his bank account at the end of the period is given by

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3 years ago