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3 years ago

Please help need it ASAP math 10 points.

Mathematics

2 answers:

Blababa [14]3 years ago

6 0

Answer:

32.77

Step-by-step explanation:

28.50 x .15

tip=4.27

28.50

04.27

----------

32.77

ludmilkaskok [199]3 years ago

4 0

The answer is 32.775
15 percent of 28.50 is 4.275
To get the total just add the two values
Hope this answer helped you out!

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We define the relation =m (read "equal mod m") on Z x Z to be the set: {(p,q): m|(p-q)}. Please show work.

Slav-nsk [51]

Step-by-step explanation:

a) Give two pairs which are in the relation $\equiv \mod 4$ and two pairs that are not.

As stated before, a pair $(x,y)\in \mathbb{Z}\times\mathbb{Z}$ is equal mod m (written $x\equiv y\mod m$ ) if $m\mid (x-y)$ . Then:

x=0 and y=4 is an example of a pair $\equiv \mod 4$
x=0 and y=1 is an example of a pair $\not \equiv \mod 4$

b) Show the $\equiv \mod m$ is an equivalence relation.

An equivalence relation is a binary relation that is reflexive, symmetric and transitive.

By definition $\equiv \mod m$ is a binary relation. Observe that:

Reflexive. We know that, for every m, $m\mid 0$ . Then, by definition, $x\equiv x \mod m$ .
Symmetry. It is clear that, given x,y and m such that $m\mid (x-y)$ , then $m\mid (y-x)$ . Therefore $x\equiv y \mod m \iff y\equiv x \mod m$
Transitivity. Let x,y,z and m such that $x\equiv y \mod m$ and $y\equiv z \mod m$ . Then, $m\mid (y-x)$ and $m\mid (z-y)$ . Therefore:

$m\mid [(y-x)+(z-y)] \implies m\mid (z-x) \implies x\equiv z \mod m$ .

In conclusion, $\equiv \mod m$ defines an equivalence relation.

6 0

3 years ago

Hey plz help and show work

blsea [12.9K]

The dog house consists of two geometric objects, triangular prism and rectangular prism.

First, find the surface area of triangular prism
The triangular prism consists of
base of triangle (b) = 3 ft
height of triangle (h) = 2.5 ft
height of prism or length of rectangle (l) = 4 ft
side of triangle or width of rectangle (w) = 2.5 ft

Now, calculate the area
area of tp = area of two triangle + area of 2 rectangle
area of tp = (2 × 1/2 × b × h) + (2 × l × w)
area of tp = (2 × 1/2 × 3 × 2) + (2 × 4 × 2.5)
area of tp = 6 + 20
area of tp = 26 ft²

Second, find the surface area of rectangular prism
The rectangular prisms consists of
length (l) = 3 ft
width (w) = 4 ft
height (h) = 2 ft

Now, calculate the area
area of rp = area of back and front rectangle + area of left and right rectangle
area of rp = (2 × l × h) + (2 × w × h)
area of rp = (2 × 3 × 2) + (2 × 4 × 2)
area of rp = 12 + 16
area of rp = 28 ft²

Third, add both of the area
area = area of tp + area of rp
area = 26 + 28
area = 54 ft²

The area of the dog house is 54 ft²

6 0

3 years ago

PLEASE I NEED THIS NOWWWWW

Varvara68 [4.7K]

Answer:

70 easyily

Step-by-step explanation:

5 0

3 years ago

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Max mart sells 5 oranges for 6.25 megmart sells 4 oranges for 4.50 which store offers the best deal? What is the diffract in pri

Yuki888 [10]

Max mart is $1.25 for an orange, and megmart is $1.125 for an orange. So megmart has the best deal and the difference is $.125

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4 years ago

What is the square root of 50 rounded to the nearest tenth

GuDViN [60]

Answer:

i think 10th: √ 50 ≈ 7.1 100th: √ 50 ≈ 7.07

Step-by-step explanation:

7 0

4 years ago