3 years ago

I have 2 Questions.

Mathematics

2 answers:

Nesterboy [21]3 years ago

6 0

What type of class are you in

aleksandr82 [10.1K]3 years ago

5 0

Answer:

looks hard omgong

You might be interested in

Solve the inequality.

Karolina [17]

The answer is c.g>-7

6 0

3 years ago

Which statements are true? (look at picture)

Makovka662 [10]

Answer:

D is true, E is true, F is true

Step-by-step explanation:

Hello,

n is an odd number it means that n = 2a+1 where a is integer

$n^2-1=(2a+1)^2-1=4a^2+4a+1-1=4a(a+1)$

this is not an odd number

$n(n-1)=(2a+1)2a$

this is not an odd number

$(n-1)^2=(2a+1-1)^2=4a^2$

this is not an odd number

$n^2+2=(2a+1)^2+2=4a^2+4a+1+2=4a^2+4a+3= 2(2a^2+2a+1)+1$

so this is an odd number

$n(n-2)=(2a+1)(2a-1)=4a^2-1=4a^2-2+1=2(2a^2-1)+1$

so this is an odd number

$(n-2)^2=(2a+1-2)^2=(2a-1)^2=4a^2-4a+1 = 2(2a^2-2a)+1$

this is an odd number

hope this helps

7 0

3 years ago

Write an equation of a line that is parallel to 3x+2y=6 that passes through the points (4,2)

vova2212 [387]

The answer to the question

4 0

3 years ago

What is the radius of a sphere which area is equal to the sum of the areas of four circles of radius 7?

antiseptic1488 [7]

Answer:

radius = 7 units

Step-by-step explanation:

Given:

Radius = 7 units

Find area of 4 circles:

1 circle = π (7)² = 49π units²

4 circles = 49π x 4 = 196π units²

Find radius of sphere:

4πr² = 196π

r² = 49

r = 7

3 0

3 years ago

What is 1.6 as a percentage

svlad2 [7]

Answer:

160%

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers