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3 years ago

Can someone please help me

Mathematics

1 answer:

alexdok [17]3 years ago

6 0

Answer:

idk

Step-by-step explanation:

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The area of right angled triangle with its legs are 6cm and 8cm is equal to

aalyn [17]

Answer:

A = 24 cm^2

Step-by-step explanation:

The area of a triangle is

A = 1/2 bh

A = 1/2 (6)*8

A = 24 cm^2

4 0

2 years ago

There are 12 people in a class. 10 are randomly chosen. How many possible combinations are there?

Mazyrski [523]

long way

12 x 11 x 10 x 9 x 8 x 7 x6 x5 x4 x3x2/ 10x9x8x7x6x5x4x3x2x

but you can shorten that by crossing out identical numbers so you get 12 x 11

12 x 11 = 132 combinations

3 0

3 years ago

What's (7 x 100) + (4 x /100) + (8 x 1/1000) in standard form?

IceJOKER [234]

Answer:

(7*100) can be written as 7*10^2

4 * / 100 i don’t know

if it was 4 * 100 then it’s 4*10^2

if it was divided then it’s 4*10^-2

8* 1/1000 = 8/1000 = 8*10^-3

add together to get 1.100008 * 10^3 (if it was 4*100)

or 7.00048 * 10^2 ( if it was 4/100)

7 0

2 years ago

Can anyone help 9th-grade geometry

True [87]

Answer:

5 < x < 23

Step-by-step explanation:

let the third side be x , then

difference of 2 sides < x < sum of 2 sides

14 - 9 < x < 9 + 14 , that is

5 < x < 23

3 0

2 years ago

Estimate the solution to the system of equations.

Katen [24]

Answer:

The solution is: x = -1, and y = 8/3

Step-by-step explanation:

Notice that the system of equations can be easily solved via the "elimination" method, by subtracting term by term one equation from the other. Doing such will remove completely the term in "y" (since the terms in "y" are exactly equal in both equations), and leave only an equation containing "x", for which the value can be solved:

$2x+3y=6\\-4x+3y=12\\\\ \\2x-(-4x)+3y-(3y)=6-12\\6x+0=-6\\x=-1$

Now we use this x-value in either equation to solve for y:

7 0

3 years ago

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