2 years ago

Not quite sure how to find out if these are functions or not

Mathematics

1 answer:

iVinArrow [24]2 years ago

3 0

number 5 is not and number 7 is a function because every input has exactly one output

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Simplify. 2 - 30 × 5

exis [7]

First you would do -30x5 which equals -150 then 2-150 equals -148

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2 years ago

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If dan has $3.75 and he spends 1/3 of it how much does he have left

olga_2 [115]

3.75 divided by 3= 1.25
3.75-1.25= 2.50

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2 years ago

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Vector V is in standard position and makes an angle of 50° with the positive x-axis. Its magnitude is 18. Write V in component f

Umnica [9.8K]

Answer:

11.57 units east, 13.79 units upwards

11.57i + 13.79j

Step-by-step explanation:

V = 18 units at an angle of 50° to the positive x-axis

In component Form, this is how each component is calculated

a = 18cos50° = 11.57 units east

b = 18sin50° = 13.79 units upwards

check if your answer is correct

$\sqrt{11.57^{2} +13.79^{2} } = 18.0$

In vector component form ai + bj = 11.57i + 13.79j

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3 years ago

Michael is using a number line to evaluate the expression –8 – 3.

djverab [1.8K]

Answer:

Micheal could rewrite the equation as negative 8 + negative 3 and move 3 spaces to the left.

Step-by-step explanation:

-8 - 3 = -8 + (-3)

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3 years ago

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The product of 2/5a²x and -1/5x²a is?

Natasha2012 [34]

So you first multiply the fractions: 2/5 times -1/5 = -2/25; then the a's: a^2 times a equals a^3; then multiply the x's: x times x^2 equals x^3.
The answer would be -2/25a^3x^3

7 0

2 years ago

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