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4 years ago

Evaluate 9x + 3xy − 2 for x = 3 and y = −3.

Mathematics

1 answer:

klemol [59]4 years ago

5 0

Answer:

- 2

Step-by-step explanation:

Given

9x + 3xy - 2

Substitute x = 3 and y = - 3 into the expression

= 9(3) + 3(3)(- 3) - 2

= 27 - 27 - 2 = - 2

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Pls do some research but can I bring a bearded dragon on a 12 hour car trip without any heath issues happening?

creativ13 [48]

Answer:

after doing a little bit of research. NO your bearded dragon will not be affected as long as you feed it and keep it on a level surface so the enclosure it's in does not tip at all other than that it will be perfectly fine.

5 0

3 years ago

Anna and Betty share 24 sweets in the ratio 3:5. How many sweets do they get each?

Alborosie

Answer:

Anna 9 and Betty 15

Step-by-step explanation:

sum the parts of the ratio , 3 + 5 = 8 parts

divide number of sweets by 8 to find value of one part of the ratio

24 ÷ 8 = 3 ← value of 1 part of the ratio , then

3 parts = 3 × 3 = 9

5 parts = 5 × 3 = 15

Anna gets 9 sweets and Betty gets 15

3 0

3 years ago

What would be the answer?

RSB [31]

Answer:

id be happy to help but i dont know the question . if its asking for area it would be 24

Step-by-step explanation:

5 0

4 years ago

Read 2 more answers

Which product is negative?

Nataliya [291]

Answer: -3.4.(-2) • (-2)= -48

Step-by-step explanation: please keep in mind that every number that you multiply by 0 is equal to 0, it does not mind if number is positive or negative the result will be always 0, if we have this clear we can pass with following step.

then you do not need resolve the equation with 0 because you know that result will be 0, after that we get only one equation the first one.

-3 * 4 * (-2) * (-2)

keep in mind when you are multiplying numbers with the same sign the product will be positive, but when you are multiplying numbers with different signs the result will be negative.

we can resolve this value by value for example

-3 * 4 * (-2) * (-2)

-3 * 4= -12

then we get the following equation

-12 * (-2) * (-2)

then we can pass with the next value

-12 * (-2) = 24

then we get the following equation

24 * (-2) = -48

as you can see this will be the only one equation with a negative product.

3 0

4 years ago

You want to purchase an automobile for $ 26 comma 706. The dealer offers you 0% financing for 60 months or a $ 3 comma 926 reba

Alexxandr [17]

Answer:

Since the monthly payment with rebate is lower than monthly payment for 0% financing, I will choose the $3,926 rebate

Step-by-step explanation:

Price of the automobile = $26,706

There is 0% financing for 60 months

Rate = 6.3%

Monthly payment for 0% financing = 26706 ÷ 60 = $445.1

Rebate = $3,926

Monthly payment for $3926 rebate

Formula for calculating present value ( PV) for Annuity payment

$P = \frac{r * PV}{1 - (1+r)^{-n} }$ ...................(1)

P = monthly payment

r = Rate per period = 6.3%/12

r =(6.3/100)/12 = 6.3/1200

r = 0.00525

Present value, PV = 26706 - 3926 = $22780

number of payments, n = 60

Substituting these values into the equation (1) above

$P = \frac{0.00525 * 22780}{1 - (1+0.00525)^{-60} }$

P = $443.59

Note : From calculations, Monthly payment with rebate = $443.59, while monthly payment for 0% financing = $445.1

Since the monthly payment with rebate is lower than monthly payment for 0% financing, I will choose the $3,926 rebate

3 0

3 years ago