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GrogVix [38]
3 years ago
15

Write an equation for the nth term of the arithmetic sequence 56, 48, 40, 32, ....

Mathematics
1 answer:
Wittaler [7]3 years ago
5 0

Answer:

an = 56-8(n-1)

Step-by-step explanation:

This is an arithmetic sequence

The common difference is 48 - 56 =-8

a1 = 56

an = a1+d(n-1)

an = 56-8(n-1)

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What is the value of a2+c•(2+b)<br><br> when a =3 , b=6 and c=5
DerKrebs [107]

Answer:

46 is the answer

Step-by-step explanation:

Because:

a2 + c(2+b)

3(2) + 5(2+6)

6 + 5(8)

6 + 40

46

7 0
3 years ago
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PLZ HELP!!<br> Solve by substitution<br> y = -5x<br> y + 4x = -1<br> Explain PLZ
Nataliya [291]

Answer:

x= 1

Step-by-step explanation:

The value of y = -5x

Plug it in the equation of y + 4x = -1

So it becomes, -5x + 4x = -1

Combine like terms which are -5x and 4x which equals to -x

Eliminate the negative sign because x cannot be negative. Apply that to -1. It becomes 1.

Hope you find this helpful!

7 0
3 years ago
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can some help me out with this ? i need to know some steps so i can remember what im doing for the other questions i have.
Anna [14]

Answer:

Step-by-step explanation:

a^{2} +b^{2}=c^{2} \\b^{2} =c^{2}- a^{2}\\b= \sqrt{b^{2} }

49 - 16 = 33

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6 0
3 years ago
(02.02 MC)
Alla [95]
First, plot the coordinates so you can easily see the parallelograms. The points in blue is the original parallelogram, while the points in orange form the parallelogram after the transformation.

As you can observe, the two properties form a mirror image (reflection) vertically (or across the y-axis). However, it is moved downwards by 10 units. To guide you, count the units of distance between the two topmost points of each of the two parallelograms. The answer is letter A.

8 0
3 years ago
Ellen wants to purchase a book that is regularly priced at $18. The book is discounted 15%. She also needs to pay a 6% sales tax
Viefleur [7K]

Answer:

Ellen will pay $16.22 for the book.

Step-by-step explanation:

Part 1:

We know that the book Ellen wants to buy has a normal price of $18. However, there is a 15% discount. So, let's calculate 15% of $18.

18 x 0.15 = $2.70

This lets us know that there is a $2.70 discount.

Now, let's subtract the discount from the regular price.

18 - 2.70 = $15.30

So, now we know the discounted price is $15.30

Part 2:

We also know that Ellen has to pay 6% sales tax. The discounted price is 100% of the price, plus 6% is 106%. Let's calculate the tax to figure out the total amount.

15.30 x 1.06 = $16.22 when rounded to the nearest cent.

Therefore, Ellen will pay the total amount of $16.22.

3 0
3 years ago
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