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tigry1 [53]
3 years ago
9

Please help me, I don't understand.

Mathematics
1 answer:
levacccp [35]3 years ago
3 0
The answer is a I’m pretty sure
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Help me with this question : <br><br><img src="https://tex.z-dn.net/?f=%20%5Cquad%20%5Ctt%20%5C%3A%28%20%20%7Ba%7D%5E%7B%7D%20%2
Bas_tet [7]

Answer:

a² + 2ab + b²

Explanation:

⇒ (a + b)²

⇒ (a + b)(a + b)    

[apply distributive method: (a + b) (c + d) = ac + ad + bc + bd]

⇒ a² + ab + ab + b²

⇒ a² + 2ab + b²

3 0
2 years ago
Read 2 more answers
If x varies directly with y and y is 10 when x is 8, what is x when y is 18?
swat32
Knowing that x varies directly with y, we know the basic skeleton of the equation is y = mx. 

To find m, plug in the known coordinate (8,10), where the x-coordinate is 8 and the y-coordinate is 10.
y=mx \\ 10=m8 \\ (10)/8=(8m)/8 \\ m= \frac{10}{8} = \frac{5}{4}

Then, plug in m to the equation to get y = (5/4)x.

Finally, plug in the y-coordinate 18 to the equation and solve for x!
y= \frac{5}{4}x \\ 18= \frac{5}{4}x \\  \frac{4}{5}(18)=( \frac{5}{4}x) \frac{4}{5} \\ x= \frac{4*18}{5}  \\  x= \frac{72}{5}

Your exact answer is x = 72/5. However, if your teacher prefers decimals, then x = 14.4

Hope this helps!
5 0
3 years ago
Read 2 more answers
1. Select all the expressions that are equivalent to 4 - x.
viktelen [127]

Step-by-step explanation:

It is required to find the expressions that are equivalent to 4-x. We can also write it as :

Option (b) : (4-x) = 4+(-x)

Option (c) : (4-x) = -x+4

Hence, the correct options are (B) and (C).

4 0
3 years ago
What is the slope of the line through (-1, 2) and (-3,-2)?
Burka [1]

The answer of the slope or Gradient of the line is 2

8 0
3 years ago
Drag each equation to show if it could be a correct first step to solving the equation 3(6+x)=24.
34kurt

Answer:

x=2

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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