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2 years ago

Ann uses the equation y=9.75x to calculate the total cost y in dollars for x posters how much would she spend on 4 posters?

Mathematics

2 answers:

siniylev [52]2 years ago

8 0

Answer:

$39

Step-by-step explanation:

Substitute 4 into the x variable in the equation. From there, multiply.

9.75 x 4 = y

y = 39

gladu [14]2 years ago

7 0

Explanation is in the file

tinyurl.com/wtjfavyw

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Please help! Will give Brainliest!!

Valentin [98]

Answer:

$133507.33

Step-by-step explanation:

x = number of 6 month periods

y = total money in account

After 10 years:

$y = 300x(1.09)^x$

$y = 300(20)(1.09)^2^0$

$y = 6000(5.60441077)$

$y = 33626.46$

After 18 years:

$y = 33626.46(1.09)^x$

$y = 33626.46(1.09)^1^6$

$y = 33626.46(3.97030588)$

$y = 133507.33$

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2 years ago

If y = x+2 were arranged to y= x+1, how would you graph the new function compare with the first one

Kobotan [32]

Hope I was able to help u

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2 years ago

Simplify the expression 3x(x – 12x) + 3x2 – 2(x – 2)2. Which statements are true about the process and simplified product? Check

Kisachek [45]

<h3>1. The term $-2(x-2)^2$ is simplified by first squaring the expression (x – 2). </h3><h3>TRUE </h3><h3>2. The simplified product is a binomial. TRUE</h3><h3>3. After multiplying, the like terms are combined by adding and subtracting.</h3><h3>TRUE </h3><h3>4. The parentheses are eliminated through multiplication. TRUE</h3><h3>5. The final simplified product is $-28x^2 + 8x - 8$ FALSE</h3>

Step-by-step explanation:

Here, the given expression is :

$F(x) = 3x(x- 12x) + 3x^2-2(x-2)^2$

Now, let us first solve the given expression step wise:

$F(x) = 3x(x-12x) +3x^2 -2(x-2)^2\\= 3x(-11x) +3x^2 -2(x^2 +4 -4x)\\= -33x^2 + 3x^2 -2x^2 -8+8x\\= -32x^2 +8x - 8\\\implies F(x) = -32x^2 +8x - 8$

Now, here the given statements are:

1. The term $-2(x-2)^2$ is simplified by first squaring the expression (x – 2).

TRUE

2. The simplified product is a binomial. TRUE

3. After multiplying, the like terms are combined by adding and subtracting.

TRUE

4. The parentheses are eliminated through multiplication. TRUE

5. The final simplified product is $-28x^2 + 8x - 8$ FALSE

As the simplified expression is: $(-32x^2 +8x -8)$

7 0

2 years ago

Pythagorean triples are super important to know. If the hypotenuse of a triangle is 15, what are its legs ( hint - use the three

Triss [41]

Answer:

9, 12

Step-by-step explanation:

Just multiply the 3,4,5 triple by 3 and u get 9, 12, 15

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2 years ago

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Bond [772]

Answer:

x = 10 , y = 2

Step-by-step explanation:

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2 years ago