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oksano4ka [1.4K]
3 years ago
15

Help me please!! :P Select all the pairs of equivalent expressions. It’s question 2

Mathematics
1 answer:
vesna_86 [32]3 years ago
6 0

Answer:

1 & 4

Step-by-step explanation:

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Simplify x+x+2y-y+3x (dont put a whole paragraph how to do it please)
fgiga [73]

Answer:

5x+y

Step-by-step explanation:

7 0
3 years ago
What is a<br> decomposition reaction?
yaroslaw [1]

Answer:

11-6√3 = a -b√3

where a=11 and b =6

Step-by-step explanation:

<u><em>Step(i):-</em></u>

Given

      \frac{5+2\sqrt{3} }{7+4\sqrt{3} }

Rationalize

=    \frac{5+2\sqrt{3} }{7+4\sqrt{3} } X \frac{7-4\sqrt{3} }{7-4\sqrt{3} }

=    \frac{(5+2\sqrt{3})(7-4\sqrt{3} ) }{7^{2} -(4\sqrt{3})^{2}  }

=  \frac{(5+2\sqrt{3})(7-4\sqrt{3} ) }{49-16(3)  }

= \frac{(5+2\sqrt{3})(7-4\sqrt{3} ) }{1  }

<u><em>Step(ii):-</em></u>

<em>Multiply</em>

<em>     </em>{(5+2\sqrt{3})(7-4\sqrt{3} ) }

=  5 × 7 - 5×4√3 + 2√3 ×7 - 2√3 × 4√3

= 35 -20√3+ 14√3-8×3

= 35 - 6√3 -24

= 11-6√3

6 0
3 years ago
PLEASE HELP ME ASAPPPP PLEASEEE
Nadya [2.5K]

Answer:

its purple..the longest side is hypotnuse

5 0
3 years ago
The center of a circle is at (4,-3) and it’s radius is 3 units, which point lie on the circle
sergey [27]

Answer:

Any set of (x , y) whose distance from (4, -3) is 3 units lies on the circle.

Step-by-step explanation:

To find the distance , use the formula

distance = \sqrt{(x_2 - x_1)^2 + (y_2 -y_1)^2}

If distance < 3, (x, y) lies inside the circle.

If distance > 3, (x, y) lies outside the circle.

If distance = 3 (x, y) lies on the circle.

4 0
3 years ago
What is the inverse function of y = √ x − 1 2 , x ≥ 1 2a. y=x2−14,x≥0 b. y=x2−12,x≥0 c. y=x2+12,x≥0 d. y=x2+14,x≥0
hammer [34]

The function is :

y = √(x-12), x≥12


To find the inverse function, we interchange x and y, and then make y the subject again.


So interchanging x and y we have:


x = √(y-12)


Squaring both sides gives;

x² = y-12



Now making y the subject we have,


y = x² +12

x≥0.


Therefore the inverse function is;

y = x² +12, x≥0.


Hence the correct answer is C.



7 0
4 years ago
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