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seropon [69]
3 years ago
14

" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
morpeh [17]3 years ago
8 0
2x+y+−y=3y−2+−y

2x=2y−2

2x2=2y−22

x=y−1

Answer:

x=y−1

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Which statement about these two sandboxes is true?
adell [148]
A would be the answer
5 0
3 years ago
Find the following differences:
Lyrx [107]

Answer:

1- 0.123

2- 0.0745

3- 0.9706

5 0
2 years ago
In the diagram, HGF is a straight line. Given EF = 4 cm and HG = GF = 3 cm, find :
Alecsey [184]
If HG and GF are both 3, then the whole length of the base is 6. The tan ratio is the side opposite the reference angle (length 4) over the side adjacent to the angle (length 6), which for us looks like this:
tan(x)= \frac{4}{6} = \frac{2}{3}=.6666667
Now use the inverse tan button (2nd-->tan) to get
tan^{-1} (.66667)=33.69
As far as the sin y goes, you have to use the Law of Sines because you are not working with a right triangle in that case.  I mean you are as far as having to find out what the hypotenuses are triangle EFH and triangle EFG.  The hypotenuse in triangle EFH is 7.211, and the hypotenuse in triangle EFG is 5. Using the Law of Sines to solve for y, you get this:
\frac{siny}{7.211} = \frac{sin33.69}{5}
Solving for y and using the inverse sin gives you that y = 53.12
If you are not familiar with setting up the Law of Sines, nothing I could tell you here would help. If you are familiar, then you get the idea of where the numbers came from and why they are set up that way. Hope that helps. That second part was quite hard.

7 0
3 years ago
If c=4 and d=5, find c:d.<br>​
Sholpan [36]

Answer:

3:4?

Step-by-step explanation:

If you fill in the blank for c and d it show 3:4. Sorry if this doesn’t help, I don’t fully understand the question

8 0
2 years ago
Brian is 1 meter 87 centimeters tall. Bonnie is 58 centimeters shorter than brian. Betina is 26 centimeters taller than bonnie.
Nady [450]

Answer:

1 meter 3 centimeters

Step-by-step explanation:

Brian: 1 meter 87 centimeters

Bonnie: 58 cm shorter than Brian.

So, we subtract 58cm from Brian's 1 meter 87 cm.

We get that bonnie is 1 meter 29 cm.

Now Betina is 26 cm shorter than bonnie, so we subtract 26cm from Bonnie's height.

We get 1 meter 3cm which is Betina's height.

4 0
3 years ago
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