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Natasha2012 [34]
3 years ago
12

A rectangle has four sides. Fill in the blanks in the double number-line below.

Mathematics
1 answer:
Elena L [17]3 years ago
3 0
Box 1: 6 Box 2: 16 Box 3: 20 Box 4: 24
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<img src="https://tex.z-dn.net/?f=%28x%20%2B%20k%29%20%7B%7D%5E%7B2%7D%20%20%3D%20%20%7Bx%7D%5E%7B2%7D%20%20%2B%201x%20%2B%20%20
ozzi
If we take the equation and multiply out the left side, we get....

x^{2} + 2xk + k^{2} = x^{2} + x +k^{2}

The x^2 and k^2 cancel out on both sides leaving us with this...

2kx = x

If we divide both sides by 2x to isolate k, k ends up = 1/2
4 0
3 years ago
Please help with this (for a test tomorrow), if you could show all working out for the 2 examples, sin(<img src="https://tex.z-d
ELEN [110]

Answer:

[tex][pi]

Step-by-step explanation:

Hope it is helpful

6 0
2 years ago
What’s the answer to #12? and why
Elena L [17]
Remark
If there are 5 distinct zeros that means either that the x axis is crossed the x axis 5 different places or touched the x axis in 1 place out the 5. Touching in one place means that an even number of roots are the same. 

So let's go through all of them to get an answer of 5.

A has 4 x intercepts. It is not the right answer. We need 5.
B has 4 x intercepts. It is not the right answer. We need 5.
C has 6 x intercepts. Not the one we want.
D has 5 x distinct zeros. The wording is a bit tricky. It does not matter than one of them just touches the x axis. There could be an even number of distinct zeros there, but it only counts as one root.

An example of such a graph is f(x)=\left(\frac{1}{10}(x+2)(x+1.5)(x+1)(x-2)^4(x-3)\right)
 
Answer D <<<<<


6 0
3 years ago
Read 2 more answers
$50. MP3 downloads cost $1.5 each. How many songs can he download<br> and still have $12
Stella [2.4K]
25 songs he can download
7 0
3 years ago
Read 2 more answers
The denominator of a fraction exceeds the numerator by 7. If 3 is added to the numerator and 1 is subtracted from the denominato
Elodia [21]
9/16 is the original fraction. 9+3 = 12 and 16-1 =15. 12/15 = 4/5
3 0
3 years ago
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