MATHEMATICS MIDDLE SCHOOL

Use the following area model to multiply 42 x 73 What is the area of rectangles A, B, C, and D?

Answers

Answer 1

Answer:

A=2800,B=120,C=140,D=6

Answer 2

Answer:

A=2,800 B=120 C=140 D=6

Step-by-step explanation:

4*7 is equal to 28, then 40*70 is equal to 2,800.

when you multiply a 2-digit number always multiply the first digit from the first number with the first digit from the second number and think of them as single digits, for example, I don't know how to do 30*40, first, take the 3 and the 4 then multiply them. 3*4 equals 12, then you take the 0s and add them to the number, and now we have 1200! The same goes for 42*73, I hope this helps!

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What is 2+2
I'm really am wondering

Answers

4 is the answer to 4+4

2+2=4 sooo yea it`s 4

What is the median of 1.99 2.99 3.89 3.99

Answers

Normally you would put the numbers least to greatest and the number in the middle would be the median.
But in this case 2 numbers, 2.99 and 3.89 are in the middle.
In this case the mean of the two middle numbers is the median.
3.44

Median is the middle number, since these are already aligned in least to greatest, we could find it easily.

Between 2.99 and 3.89 is 3.44

Answer: 3.44

What is the expression in factored form?x^2+13x+14Also an explanation
I dont understand this math at all

Answers

Answer:

$\left(x-(-13+√(113))/(2)\right)\left(x-(-13-√(113))/(2)\right).$

Step-by-step explanation:

To factor the expression $x^2+13x+14$ you need to know its roots.

First find the discriminant of this quadratic polynomial:

$D=13^2-4\cdot 1\cdot 14=169-56=113.$

Then the roots of the expression $x^2+13x+14$ are

$x_(1,2)=(-13\pm √(113))/(2).$

Now the factored form is

$\left(x-(-13+√(113))/(2)\right)\left(x-(-13-√(113))/(2)\right).$

What is 66% of 75? SOLVE THE PROBLEM

Answers

The answer is 49.5% Hope I helped.

66% of 75 is 49.5. To get the answer you multiply (.66)(75).

It has 3 more vertices than a triangle

Answers

the answer to this question is: hexagon
Hope this helps! (:

A shape that 3 more vertices than a triangle is a hexagon because 3+3 is 6

A small number of cards has been lost from a complete pack. If I deal among four people, three cards remain. If I deal among three people, two remain and if I deal among five people, two cards remain. How many cards are there?

Answers

Answer:

Step-by-step explanation:

I had to look up how many cards in a deck to answer this question XD

This proves how little I play cards

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