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Aleks [24]
3 years ago
11

Help me please I’m really struggling

Mathematics
1 answer:
shtirl [24]3 years ago
6 0

Answer:

Step-by-step explanation:

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What is the order of rotational symmetry for a rhombus?
Westkost [7]
A rhombus<span> has </span>rotational symmetry<span>. It is a </span>symmetric<span> shape that can be rotated and still appear the same. A </span>rhombus<span> has two-fold </span>symmetry<span>, meaning that is can be rotated 180 degrees and appear the same.</span>
5 0
4 years ago
Test for the commutative property of union and intersection of the sets P = { x : x is all real numbers between 2 and 7} and Q =
In-s [12.5K]

Answer:

Step-by-step explanation:

P = {x : x is a real number between 2 and 7}

{x: 3,4,5,6}

Q = {x : x is all rational number between 2 and 7}

{4 }

We know that P contains all the rational numbers between 2 and 7.

And P ∪ Q and Q ∪ P each of them contain all the real numbers which are between 2 and 7.

{3,4,5,6}

Here Q is the proper subset of P

P ∩ Q = Q ∩ P = Q= {4}

4 0
3 years ago
the product of two consecutive integers n and n+1 is 42. what is the positive integer that satisfies the situation?
MrMuchimi
n(n+1)=42 \\&#10;n^2+n=42 \\&#10;n^2+n-42=0 \\ \\&#10;a=1 \\ b=1 \\ c=-42 \\ b^2-4ac=1^2-4 \times 1 \times (-42)=1+168=169 \\ \\&#10;n=\frac{-b \pm \sqrt{b^2-4ac}}{2a}=\frac{-1 \pm \sqrt{169}}{2 \times 1}=\frac{-1 \pm 13}{2} \\&#10;n=\frac{-1 -13}{2} \ \lor \ n=\frac{-1+13}{2} \\&#10;n=\frac{-14}{2} \ \lor \ n=\frac{12}{2} \\&#10;n=-7 \ \lor \ n=6

The positive integer is 6.
The consecutive integers are 6 and 7.
8 0
3 years ago
Why is the quotient -100/(-5) the same as the quotient 100/5
Tatiana [17]

Answer:The quotient of -100 and -5  is the same as the quotient of 100/5 because if you divide a negative number by a negative number, you will get a positive number and the same way if you divide a positive number by a positive number you will get a positive number.

Step-by-step explanation:

-100/-5 = 20

100/5 = 20

8 0
3 years ago
What is a correct way to rewrite abac?
Ray Of Light [21]

Answer: A(b+c)

Step-by-step explanation: Since you're multiplying A and A you would add the B+C

7 0
3 years ago
Read 2 more answers
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