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pav-90 [236]
1 year ago
7

What is the value of the expression 4 x (2a - 1) if a = 3? 16 20 23 25

Mathematics
2 answers:
valentinak56 [21]1 year ago
6 0
3x2=6-1=5 then 5x4=20
olga_2 [115]1 year ago
4 0

Answer:

20

Step-by-step explanation:

⇒ Multiply 2 by 3

2 * 3 = 6

4 (6 - 1)

⇒ Distribute terms

4 * 5

20

Hence, the answer is 20.

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Use Pascal’s Triangle to determine the fifth term of the expansion of (x + 3)7
ValentinkaMS [17]

Answer:

2835x^5.

Step-by-step explanation:

By Binomial Theorem, T(r+1) = nCr * a^(r+1) * b^r.

Term 5 = 7C4 * x^5 * 3^4

= 35 * x^5 * 3^4

= 2835x^5.

7 0
3 years ago
The perimeter of a square picture frame is 24 in. Find the lengths of each side of the frame.
m_a_m_a [10]

Answer:

6 inches

Step-by-step explanation:

The perimeter formula for a square is P = 4*S

P =24

s = ?

24 = 4*S            Divide both sides by 4

24/4 = 4S/4      

S = 6

6 0
2 years ago
Sarah opened a savings account with a $725 deposit. This account earns 3.5% annual interest compounded twice each month. How lon
Karolina [17]
Jody invested less in an account paying simple interest than she did in an account paying simple interest. At the end of the first year, the total interest from both accounts was Find the amount invested in each account.
7 0
2 years ago
Find the solution for the following: Three backpackers cooked rice for dinner. The first one gave 400g of rice and the second 20
victus00 [196]

Answer:

First backpacker should receive $4 and the second one $2

Step-by-step explanation:

notice that the total amount of rice for the three is 600 g.

Then, the first one that gave 400 g contributed 400 out of 600, that is 400/600 = 2/3

The second one contributed 200 out of 600, that is 200/600 = 1/3

then the first one should receive 2/3 of the $6 = (2/3) x 6 = $4

and the second one should receive 1/3 of the %6 = (1/3) x 6 = $2

6 0
3 years ago
What's 3 divided by 16
AlekseyPX
3/16= 0.1875
Though if you mean 16/3 it is 5.333.....
4 0
3 years ago
Read 2 more answers
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