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3 years ago

How is y=-2x a linear equation?

Mathematics

1 answer:

e-lub [12.9K]3 years ago

3 0

Because it lowers by the same amount each time.

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you have diving lessons every fifth day and swimming lessons every third day today you have both lessons in how many days will y

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3 years ago

Solve for x. Enter the solutions from least to greatest.<br> x2 – X – 12 = 0

Artemon [7]

Answer:

$x=-3,4$

Step-by-step explanation:

Factorise in order to reveal factors.

$x^2-x-12=0\\(x-4)(x+3)=0$

8 0

3 years ago

Which choice is equivalent to the expression below √-12

kondaur [170]

Answer:

Step-by-step explanation:

using the rule of radicals

$\sqrt{a}$ × $\sqrt{b}$ ⇔ $\sqrt{ab}$ , hence

$\sqrt{-12}$

= $\sqrt{4(3)(-1)}$ = $\sqrt{4}$ × $\sqrt{3}$ × $\sqrt{-1}$ [ $\sqrt{-1}$ = i]

= 2i $\sqrt{3}$ → E

7 0

3 years ago

Read 2 more answers

A seller buys an item from a manufacturer for $9,500. He increases the cost by 5 percent. What is the markup value?

Lynna [10]

5% of 9,500 is 475 so you would add them together. 9,500 + 475 = 9,975 so 9,975 is the answer

5 0

3 years ago

Read 2 more answers

ASAP!! Please help me. I will not accept nonsense answers, but will mark as BRAINLIEST if you answer is correctly with solutions

ryzh [129]

Answer:

The third option is correct.

The domain of the function is given by

$Domain = 0 \leq t \leq 40$

The range of the function is given by

$Range = 0 \leq V(t) \leq 200$

Step-by-step explanation:

Sara bought a cell phone for $200 and its value has decreased at rate of $5 per month.

V(t) is the value of the phone and t is the number of months.

The domain of the function is the possible values of the number of months t.

The domain of the function is given by

$Domain = 0 \leq t \leq 40$

The range of the function is the values of V(t) that we get after substituting the possible values of the number of months t.

The range of the function is given by

$Range = 0 \leq V(t) \leq 200$

When the number of months is t = 0 then the value of the function is maximum V(t) = 200

When the number of months is t = 40 then the value of the function is minimum V(t) = 0

Therefore, the third option is correct.

6 0

3 years ago