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Karo-lina-s [1.5K]
2 years ago
6

Can someone help me x^2 + 3 - 6(3x + 4) i will give brainliest

Mathematics
1 answer:
dangina [55]2 years ago
8 0

Answer:

{x}^{2}  - 18x - 21

Step-by-step explanation:

{x}^{2}  + 3 - 6(3x + 4)

{x}^{2}  + 3 - 18x - 24

{x}^{2}  - 21 - 18x

\boxed{\green{=  {x}^{2}  - 18x - 21}}

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PLEASE HELP!!!!! How many 4-digit numbers divisible by 5, all of the digits of which are even, are there?
saul85 [17]

Answer:

I assume you know Arithmetic Progression .

so, we have to find the first and last 4-digit number divisible by 5

first = 1000 ,  last =  9990

we have a formula,   a_{n} = a + (n-1)d

here, a_{n} is the last 4-digit number divisible by 5.

n is the number of 4-digit even numbers divisible by 5

d is the common difference between the numbers, which is 10 in this case

a is the first 4-digit number divisible by 5

9990 = 1000 + (n-1)*10

899 = n-1

n = 900

Hence, there are 900 4-digit even numbers divisible by 5

7 0
3 years ago
Destiny just received two separate gifts from her great-great-grandmother.
qaws [65]

Answer:

6 bags

Step-by-step explanation:

The first gift is a box of 18 chocolate candy bars, and the second gift is a pack of 12 cookies. Destiny wants to use all of the chocolate candy bars and cookies to make identical snack bags for her cousins. What is the greatest number of snack bags that Destiny can make? Answer: 6 bags

8 0
3 years ago
Which group of numbers even or odd include more prime numbers? Why?
serg [7]

The First group i.e 1-10 include more prime numbers .(2,3,5,7,1)

  • Because it has the basic inputs of every number
  • Like 15 consists of 3×5

7 0
3 years ago
Read 2 more answers
Fiona has $18 to spend. She spent $4.25, including tax, to buy a notebook. She needs to save $9.75, but she wants to buy a snack
prohojiy [21]
18-4.25=13.75$ she has. 13.75-9.75=4$ she can spend. 4$/0.50=8 packages she can buy
3 0
3 years ago
HELP ASAP PLEASEEE.​
Troyanec [42]

Please mark Brainliest. Plz.

Answer:

x^2 = 25    x = 5, -5

2x^2 = 98    x = 7, -7

x^2 + 64 = 0    x = 8i, -8i

9x^2 - 16 = 0    x = 4/3, -4/3

x^2 + 9 = 25    x = 4, -4

(x-2)^2 = 25    x = 7, -3

(x-2)^2 +9 = 25    x = 6, -2

4(x-2)^2 +9 = 25    x = 4, 0

8 0
3 years ago
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