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3 years ago

if you’re good with set theory and this sudoko puzzle in math 30 please help with question 33!! real answers only !!

Mathematics

1 answer:

Sidana [21]3 years ago

6 0

Answer: A) 2, 7, 9

Step-by-step explanation:

In a sudoku puzzle, there are three rules:

Each vertical line must contain the numbers 1 - 9, with no duplicates
Each horizontal line must contain the numbers 1 - 9, with no duplicates
Each 3 x 3 box must contain the numbers 1 - 9, with no duplicates.

Using logic:

2 must go in the 1st box. It cannot go in the 2nd or 3rd shaded square because 2 is already in that 3 x 3 box.

That leaves the 2nd and 3rd shaded square.

9 cannot go in the 2nd shaded square because 9 is already in that vertical line.

Therefore, 9 must go in the 3rd shaded square.

That leaves the 2nd shaded square.

7 must go in the 2nd shaded square because it is the only number remaining (2 and 9 have already been placed in the other squares).

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babymother [125]

It’s an isosceles triangle so it’s 4

5 0

2 years ago

Read 2 more answers

Factor the algebraic expression 18a + 15=

Feliz [49]

18a+15

making a subject of formular

a=18-15

4 0

2 years ago

A rectangular swimming pool is twice as long as it is wide. A small concrete sidewalk surrounds the pool and is a constant 2 fee

Naddika [18.5K]

Answer:

The dimensions of the pool are:

Width: 8.944 feet

Length: 17.888 feet

Step-by-step explanation:

From Geometry, the area of a rectangle ( $A$ ), measured in square feet, is determined by the following equations:

$A = w\cdot l$ (1)

Where:

$w$ - Width, measured in feet.

$l$ - Length, measured in feet.

If we know that $w = x$ , $l = 2\cdot x$ and $A = 160\,ft^{2}$ , then we get the following second order polynomial:

$2\cdot x^{2}-160 = 0$ (1)

And we solve the expression for $x$ :

$2\cdot x^{2} = 160$

$x^{2} = 80$

$x = \sqrt{80}\,ft$

$x \approx 8.944\,ft$

Then, the dimensions of the pool are, respectively:

$w \approx 8.944\,ft$ and $l \approx 17.888\,ft$

5 0

3 years ago

There are 110 calories per 28.4 grams of Cereal X. Find how many calories are in 39.76 grams of Cereal X

malfutka [58]

Answer:

I will help u if u help me

Step-by-step explanation:

2. Find the area of the parallelogram.

A.38cm

B.60cm

C.70cm

D.186cm

3 0

3 years ago

Read 2 more answers

f(x) = 4x^2+2x+6f(x)=4x 2 +2x+6f, left parenthesis, x, right parenthesis, equals, 4, x, squared, plus, 2, x, plus, 6 What is the

vladimir2022 [97]

Given:

The given function is $f(x)=4x^2+2x+6$

We need to determine the value of the discriminant f and also to determine the distinct real number zeros of f.

Discriminant:

The discriminant can be determined using the formula,

$\Delta = b^2-4ac$

Now, we shall determine the discriminant of the function $f(x)=4x^2+2x+6$

Substituting the values in the formula, we have;

$\Delta=(2)^2-4(4)(6)$

$\Delta=4-96$

$\Delta=-92$

Thus, the value of the discriminant of f is -92.

Distinct roots:

The distinct zeros of the function f can be determined by

(1) If $\Delta>0$ , then the function has 2 real roots.

(2) If $\Delta=0$ , then the function has 2 real roots ( or one repeated root).

(3) If $\Delta$ , then the function has 2 imaginary roots (or no real roots).

Since, the discriminant is $\Delta=-92 \ < \ 0$ , then the function has no real roots or 2 imaginary roots.

Thus, the function has 2 imaginary roots.

4 0

3 years ago