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Gre4nikov [31]
3 years ago
15

Please help with number 8. And if you can explain how you got the answer please do and I’ll give brainliest

Mathematics
1 answer:
ddd [48]3 years ago
6 0

Answer:

X=7.9

Y=7.9

Step-by-step explanation:

We have that x=y

And form Pythagoras theorem we have

5 \sqrt{5} =  \sqrt{x ^{2} + x ^{2}  }   \\ take \: the \: square  \: of \: the \: two \: sides \\ 125 = 2x ^{2}  \\ x {}^{2}  = 62.5 \\ x = 7.9

So x = y = 7.9

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I solved some of it but now I don't know if you continue it correctly ... To be performed: (lesson: Raducali of order "n")
nikitadnepr [17]

Answer:

-9

Step-by-step explanation:

( \sqrt[4]{7}  + 2)( \sqrt[4]{7}  - 2)( \sqrt{7}  + 4) \\  = ( { \sqrt[4]{7} }^{2}  - {{2} }^{2} )( \sqrt{7}  + 4) [because (a+b)(a-b) = a² - b²]\\  = ( \sqrt{7}  - 4)( \sqrt{7}  + 4) \\  =   { \sqrt{7} }^{2}  -  {4}^{2}[because (a+b)(a-b) = a² - b²]  \\  = 7 - 16 \\  =  - 9

5 0
3 years ago
Read 2 more answers
Give the following compound's base name.
kenny6666 [7]
Amswer the first one
3 0
3 years ago
Read 2 more answers
the sum of 3 consecutive integers is 29 less than 5 times the smallest number. find the three numbers
allochka39001 [22]

x + x + 1 + x + 2 = 5x - 29

Combine like terms.

3x + 3 = 5x - 29

Subtract 3x from both sides.

3 = 2x - 29

Add 29 to both sides.

32 = 2x

Divide both sides by 2.

16 = x

<h3>The first digit is 16.</h3><h3>The second digit is 17.</h3><h3>The third digit is 18.</h3>
6 0
3 years ago
Solve ASAP<br>i dont get it
andreev551 [17]
The slope is the coefficient of x when the coefficient of y is 1.
The slope is -0.5
The y-intercept is where x=0
y = 17 - 0.5 (0)
y = 17
The y-intercept is 17.
5 0
4 years ago
The easiest way to find THE SLOPE on a graph? Please HELP
ratelena [41]

Step-by-step explanation:

Pick two points on the line and determine their coordinates

Select one to be (x1, y1) and the other to be (x2, y2)

Finally use the slope intersect equation to calculate the slope:

<em>Formula-</em><em> </em>

<em>y = mx + b </em>

<em></em>

Hope this helps, let me know if you need more information, I'll be glad to help! :)

3 0
3 years ago
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