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ElenaW [278]
3 years ago
8

A. 4+2(5)+(−3) b. 4+2[5+(−3)] PLEASE- I NEED HELP!!!

Mathematics
1 answer:
Ugo [173]3 years ago
3 0
A = 11 and b = 8 I’m pretty sure brosky
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What is 17.4% of 8350
rusak2 [61]

Answer:

<h2>1452.9 or 14529/10</h2>

Step-by-step explanation:

17.4% of 8350 equals <em><u>1452.9 or 14529/10</u></em>

<em><u></u></em>

<em>Hope this helps! <3</em>

3 0
2 years ago
Let r and s be the roots of x^2 - 6x + 2 = 0. Find (r - s)^2.
Sphinxa [80]

Answer: (r-s)^{2} = 28

Step-by-step explanation:

  • x^{2} -6x+9=-2+9
  • (x-3)^{2}=7
  • (x-3)= -\sqrt{7} or \sqrt{7} <-- there's no plus/minus sign.
  • (x-3) = -\sqrt{7}
  • x = 3 -\sqrt{7} <-- root.
  • (x-3) = \sqrt{7}
  • x = 3+\sqrt{7} <-- root.
  • [(3-\sqrt{7})-(3+\sqrt{7})]^{2}
  • (3-\sqrt{7} -3 - \sqrt{7})^{2} <-- don't forget to distribute the negative.
  • (-2\sqrt{7})^{2}
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4 0
3 years ago
I need help on this quick
Pachacha [2.7K]

Answer:

The hypotenuse to the nearest tenth is 8.1

Step-by-step explanation:

We can use the Pythagorean theorem to solve

a^2 + b^2 = c^2 where a and b are the legs and c is the hypotenuse

Let a be the x leg and b be the y leg

a = 7 units

b= 4 units

7^2 + 4^2 = c^2

49+ 16 = c^2

65 = c^2

Take the square root of each side

sqrt(65) = sqrt(c^2)

8.062257748 =c

To the nearest tenth

8.1 =c

7 0
3 years ago
Q16. Find x^2 + 1/x^2 , if x + 1/x = 3
erica [24]

Answer:

2 \times  x \times \frac{1}{x}  =  2 \\  {x}^{2}   +  {y }^{2}  + 2xy =  {(x + y)}^{2} \\ {x}^{2}  +  \frac{1}{ {x}^{2} }  + 2 = {(x +  \frac{1}{x} })^{2}  =  {3}^{2}  = 9

8 0
2 years ago
Help me please help help help help
sineoko [7]

Answer:

77

Step-by-step explanation:

it is the same angle from one side and theother

3 0
2 years ago
Read 2 more answers
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