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nignag [31]
3 years ago
13

Please help thank you.

Mathematics
1 answer:
schepotkina [342]3 years ago
5 0
A parallelogram is always a rectangle. (false) 
A square is always a rhombus. (true) 
A rectangle is always a square. (false) 

answer
statement 2 only
---------------------

answer A. it is a <span>rhombus

---------------------------------
</span>6x - 9 = 2x + 39
<span>4x = 48
  x = 12

answer
c. x = 12


</span>
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When writing numbers in base 10, we only allow coefficients of 0 through 9. Why is that?​
Margaret [11]

Answer:

Because 0 counts as the first possible number. 0-9 gives you 10 possible numbers.

Step-by-step explanation:

7 0
3 years ago
Evaluate the polynomial when a.x=0 and b.x=-1<br> x2 – 3x - 7
Arlecino [84]

Answer:

a) -7 & b) -6

Step-by-step explanation:

Here,

a) x = 0

Solution ↦

x2 - 3x - 7 \\  =  0 \times 2 - 3 \times 0 - 7 \\  =  - 7

b) x = -1

Solution ↦

x2 - 3x - 7 \\  =  - 1 \times 2 - 3 \times ( - 1) - 7 \\  =  - 2 + 3 - 7 \\  =  - 9 + 3 \\  =  - 6

6 0
4 years ago
Find the consecutive positive odd integers whose product is 99​
dezoksy [38]

Answer:

9 and 11

Step-by-step explanation:

So let's say that the first integer is x.

That means that the second integer is x+2, since it us the next odd number.

This problem can be easily solved with our mind the answer is 9 and 11, but I'll show you the steps to slove this.

We make an equation using these two numbers:

(x)*(x+2)=99\\

Now all we gotta do is solve for x:

x^2 +2x = 99\\x^2+2x-99=0

Now we use either splitting the middle term or quadratic formula:

x^2+11x-9x+99=0\\x(x+11)-9(x+11)=0\\(x+11)(x-9)=0

Now we split each terma and solve for x:

(x-9)=0\\x=9\\(x+11)=0\\x=-11

Now the question states <em>positive </em>so we can rule out x = -11.

Now we have the first integer x = 9,

the second integer is x+2 = 9+2 =11

So the two consecutive positive odd integers are 9 and 11

4 0
3 years ago
What are my like terms here: <br><br> 4b, b, 7, 9b
netineya [11]

Answer:

4b, b, and 9b are like terms

Step-by-step explanation:

7 0
3 years ago
18÷1,322 find the estimate
12345 [234]

the answer is .0136157


6 0
4 years ago
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