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Alexxx [7]
3 years ago
8

(BRAINLIEST TO THE PERSON WHO HELPS ME WITH THESE FOUR QUESTIONS)

Mathematics
2 answers:
balandron [24]3 years ago
8 0
Cheryl wrote 7 posts
Nookie1986 [14]3 years ago
3 0

Answer:

Cheryl's posts + 7 posts =Kevin Posts

K-C=7 or C+7+K I use them because C is Cheryl and K is Kevin

Operation=subtraction or addition because it could be K-C=7 or C+7+K

Cheryl wrote K-7=C posts

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Which one is an irrational number?
gladu [14]

Answer:

The irrational number is 4.37124...

Step-by-step explanation:

This is because the number is non-terminating and non-repeating; as in the numbers don't repeat in the same order and they never end.

5 0
3 years ago
What is f(2) = 2x -6
Dennis_Churaev [7]

Answer:

f(2) = -2

Step-by-step explanation:

f(2) = 2x - 6

f(2) = 2(2) - 6

f(2) = 4 - 6

f(2) = -2

4 0
3 years ago
-13.4>=6.7+4.3+w solve the inequality
sergeinik [125]
I'm pretty sure the answer is -23.4>=w
8 0
3 years ago
Read 2 more answers
Solve using the quadratic formula. Show all work. Write each solution in simplest form. No decimals.
vagabundo [1.1K]

Answer:

A) -2 - i√3 , -2 + i√3

Step-by-step explanation:

Solve using quadratic formula

x² + 4x + 7 = 0

The Almighty Formula

= -b ± √b² - 4ac/2a

Where ax + bx² + c = 0

From the above question

a = 1, b = 4, c= 7

Hence,

-4 ± √4² - 4 × 1 × 7/2 × 1

-4 ± √16 - 28/2

=( -4 ± √-12)/2

Since

b² - 4ac < 0

We have two complex roots

Simplifying

( -4 ± √-12)/2

= -4/2 ± √-12/2

= -2 ± 2√3i/2

= -2 ± √3i

Therefore,

-2 - √3i , -2 + √3i

or

-2 - i√3 , -2 + i√3

Option A , is the correct answer

3 0
3 years ago
What is the constant term in the expression 6x^3y + 7x^2 + 5x + 4?
kolezko [41]
The 4 is the constant term.
5 0
3 years ago
Read 2 more answers
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