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yawa3891 [41]
4 years ago
15

Good morning everyone! How are you all today? Here are five questions that I need help on. Ill give Brainly's, high ratings, tha

nks and points for math. Hope you all have a great morning!

Mathematics
1 answer:
SpyIntel [72]4 years ago
5 0

1. Equivalent Expressions are written quantities that are equal.

To find equivalent expressions, it looks like you can just expand the second expression and then see if it matches the first.

2. So, expand 5(2x+3) using the distributive property.

5(2x+3) = 5×2x + 5×3 = 10x+15

It matches the first expression which means that they are equivalent.

I will also do 2-5 for you to check your work.

3. -2(-6+5) = 12-10 = 2            2 ≠ 12x-10

not equivalent

4. 3(4x+5) = 12x+15              12x+15 ≠ 12x-15  

not equivalent

5. -(-4x-3) = 4x+3                    4x+3 ≠ 4x-3

not equivalent

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If you draw three cards from a regular deck of 52 cards, what are the chances they are all hearts
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Answer:

13/52

explanation:

If you have a regular set of 52 two cards and you pulled 3 cards at random from the deck you would have a 13/52 chance or a 25% chance of pulling cards that are hearts. Due to the fact that card sets have 13 heart cards.

4 0
3 years ago
7x − 8y = 2 a function
seropon [69]

Answer:

x = 2/7 or 0.285714

Step-by-step explanation:

Your welcome :)

7 0
3 years ago
Help pleaseeeeeeee.
Dmitry_Shevchenko [17]
Answer: 11x

---------------------------------------------------
---------------------------------------------------

Explanation:

Let L be the length of rectangle B
There are two copies of L (along the top and bottom of the rectangle). The vertical pairs of sides are both 7x each.

For the triangle, we have three sides of 12x since this is an equilateral triangle. All three sides are congruent for any equilateral triangle.

The perimeter of the triangle is
P = s1+s2+s3
P = 12x+12x+12x
P = 36x

The perimeter of the rectangle is 
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P = 2L+2*7x
P = 2L+14x

Since both perimeters are the same, this means 
perimeter of triangle = perimeter of rectangle
36x = 2L+14x
36x-14x = 2L+14x-14x
22x = 2L
2L = 22x
2L/2 = 22x/2
L = 11x

So the length of the rectangle, in terms of x, is 11x. This is the final answer.

Note: if we knew the value of x, then we could find the numeric value of the length for the rectangle. But since we don't know x, we leave it as 11x.

7 0
3 years ago
What is the quotient represented by the model?
Mama L [17]

Answer:

0.4

Step-by-step explanation:

If we count up all of the colored squares, we will get 28. And if we count the non-colored squares we will get 72.

Now, we take 28 and we divide it by 72. This will get us 0.3888888. That number rounded up is 0.4.

Hope this helps and if it does, don't be afraid to give my answer a "Thanks" and maybe a Brainliest if it's correct?  

3 0
3 years ago
It is ask how many times did it say beetlejuice You could use a buddy
STALIN [3.7K]

Answer:

7 times

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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