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Alex
2 years ago
8

These numbers form an addition and subtraction fact family for 8,3,11 what is the answer​

Mathematics
1 answer:
Schach [20]2 years ago
7 0

Answer:

A fact family is a set of related addition and subtraction number sentences that include the same numbers. The numbers 2, 4, and 6 can be written in two different addition sentences. The numbers 2, 4, and 6 can be written in two different subtraction sentences. These four number sentences make up a fact family.

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Ben has a collection of 812 stamps. He gives his brother 345 stamps. About how many stamps does Ben have left
dedylja [7]

It is given in the question that

Ben has a collection of 812 stamps. He gives his brother 345 stamps.

And we have to find how many stamps does Ben have left .

Let x stamps are left.

So we have

x+345=812

Subtracting 345 from both sides

x+345-345 = 812-345

x = 467

Therefore after giving 345 stamps to his brother, 467 stamps are left .

7 0
3 years ago
What is the simplest form
Soloha48 [4]
√50 + √242 - √2
= √5·5·2 + √11·11·2 -√2
= 5√2 + 11√2 - √2
=  16√2 - √2
= 15√2
6 0
3 years ago
What is the distance between points A(2,9) and B(-2,6)? Round to the nearest whole number.
Sati [7]

Answer:

The answer is 5

Step-by-step explanation:

Use pythagorean theorem.\sqrt{3^{2}+ 4^{2} } =5

7 0
2 years ago
Type the correct answer in each box
Luba_88 [7]

Answer:

We know that the equation of the circle in standard form is equal to <em>(x-h)² + (y-k)² = r²</em> where (h,k) is the center of the circle and r is the radius of the circle.

We have x² + y² + 8x + 22y + 37 = 0, let's get to the standard form :

1 - We first group terms with the same variable :

(x²+8x) + (y²+22y) + 37 = 0

2 - We then move the constant to the opposite side of the equation (don't forget to change the sign !)

(x²+8x) + (y²+22y) = - 37

3 - Do you recall the quadratic identities ? (a+b)² = a² + 2ab + b². Now that's what we are trying to find. We call this process <u><em>"completing the square"</em></u>.

x²+8x = (x²+8x + 4²) - 4² = (x+4)² - 4²

y²+22y = (y²+22y+11²)-11² = (y+11)²-11²

4 - We plug the new values inside our equation :

(x+4)² - 4² + (y+22)² - 11² = -37

(x+4)² + (y+22)² = -37+4²+11²

(x+4)²+(y+22)² = 100

5 - We re-write in standard form :

(x-(-4)²)² + (y - (-22))² = 10²

And now it is easy to identify h and k, h = -4 and k = - 22 and the radius r equal 10. You can now complete the sentence :)

5 0
3 years ago
An office building has the dimensions shown. What is the volume of the building?
rodikova [14]
What are the dimensions of the building?
3 0
3 years ago
Read 2 more answers
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