3 years ago

What number is missing in this sequence? 1, 2, 4, 7, 11, ___, 22

Mathematics

1 answer:

Zina [86]3 years ago

4 0

Answer:

Step-by-step explanation:

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11. Identify the properties below.<br> a. 5 + 6 = 6 + 5<br> b. 7 + (3 + 9) = (7 + 9) + 3

jenyasd209 [6]

A is commutative property
B is associative property
Explanation:

5 0

3 years ago

Find all x ∈ Z satisfying each of the following equations.3x = 2 (mod 7)

Vlada [557]

Answer:

7x−3=7k,x=7k+3,k∈ℤ

Step-by-step explanation:

3x ≡ 2 (mod 7)

3 is a solution, since 3×3−2=7.

All solutions are 3+7ℤ

y=3x−2/7=3(x−3)+7/7=3(x−3)/7+1

7x−3=7k,x=7k+3,k∈ℤ

5 0

3 years ago

Help me answer this

Kruka [31]

Answer:

The answer would be 10.

Step-by-step explanation:

10 is the number that has the most number of dots above it.

8 0

3 years ago

What is the value of x makes this equation true? -6x+3=45

Oduvanchick [21]

Answer:

$x=-7$

Step-by-step explanation:

subtract 3 from both sides

$-6x=45-3$

$-6x=42$

divide each term by 6

$\frac{-6x}{-6} =\frac{42}{-6}$

$x=\frac{42}{-6}$

simplify

$x=-7$

3 0

3 years ago

Read 2 more answers

Translate into an alegbraic expression and simplify if possible.

serg [7]

Answer:

(10-x)GB

Step-by-step explanation:

Music=10-x, simple arithmetic

6 0

3 years ago