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3 years ago

13

Will give brainliest if correct

1 answer:

Mazyrski [523]3 years ago

7 0

Answer: The correct answer would be choice D, as long as the t was an exponent.

It should be written as 233.10 = 102.15(1.086)^t

The t has to be an exponent because you are multiplying the investment by 1.086 repeatedly each quarter. We used 1.086 because we added on 8.6% (or 0.086) to the investment.

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Whats the equation of the line?

Phantasy [73]

Answer: I believe it should be answer B

Step-by-step explanation: the x coordinate pairs with y and vice versa and if it’s positive you subtract is how I remember it.

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3 years ago

If c(x) = 4x – 2 and d(x) = x^2+ 5x, what is (c circle d) (x)?

Xelga [282]

Answer:

4x² + 20x - 2

Step-by-step explanation:

To evaluate (c ￮ d)(x), substitute x = d(x) into c(x)

c(x² + 5x)

= 4(x² + 5x) - 2

= 4x² + 20x - 2

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3 years ago

Find the slope of the line. Write your answer in simplest form.

nikdorinn [45]

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3 years ago

The amount of sales tax varies directly with the cost of the purchase. If the sales tax is $3.80 on a purchase of $76 what would

polet [3.4K]

Answer:

The sales tax is equal to $\$2.3$

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $y/x=k$ or $y=kx$

Let

y-----> the cost of the purchase

x ----> the sales tax

step 1

Find the value of k

For $y=76, x=3.80$

substitute

$k=y/x$

$k=76/3.8$

$k=20$

The linear equation is equal to

$y=20x$

step 2

what would be the sales tax on a purchase of $46

For $y=46, x=?$

substitute in the equation

$46=20x$

$x=46/20$

$x=\$2.3$

7 0

3 years ago

Read 2 more answers

Is this statement is true -8< 8

prohojiy [21]

Yes 8>-8 because 8 is negative

6 0

4 years ago