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erastovalidia [21]
3 years ago
9

Evaluate the following expression for x=2 and y=1 3x+8y+10

Mathematics
1 answer:
natita [175]3 years ago
6 0

Answer:

24

Step-by-step explanation:

  • 3(2) + 8(1) + 10
  • 6 + 8 + 10
  • 14 + 10
  • 24

Therefore, the answer is 24.

Have a lovely rest of your day/night, and good luck with your assignments! ♡

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I need help, can anyone help?
Bezzdna [24]
Hope this helps. After you do this, you will get -7/0.

4 0
4 years ago
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The graph of a line passes through the two points (-2,1) and (2,1)
Vinil7 [7]

Answer: if you graph these points, you'll see that the line is horizontal, so the slope is zero. It will cross the y axis (y intercept) at y=1.

Step-by-step explanation:

Slope = y2-y1/x2-x1, so in this example:

m = 1-1/it doesn't matter because the answer will be zero!!

Now for slope intercept form:

y = mx + b

y = 0x + b; take one of your points and plug it in:

1= 0(2)+ b

1=0 + b

1=b

So your equation is:

y= 0(x) + 1

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8 0
3 years ago
If a 45º-45º-90º triangle has a hypotenuse of length 9, find the leg length.
iVinArrow [24]

Answer:

Step-by-step explanation:

x²+x²=9²

2x²=81

x²=81/2=(81×2)/4

x=9√2/2≈4.5√2≈6.36

9.

x²+x²=11²

2x²=11²

x²=11²/2

x=11/√2=11√2/2≈7.78

7 0
3 years ago
If (a^2 + b^2) (x^2 +y^2) = (ax + by )^2 then which relation is true?​
NikAS [45]

Answer:

Step-by-step explanation:

Hello,

Let's develop both expressions and try to re factorise.

\forall (a,b,x,y) \in \mathbb{R}^4  \\ \\ (a^2+b^2)(x^2+y^2)=(ax+by)^2\\ \\(ax)^2+(ay)^2+(bx)^2+(by)^2=(ax)^2+(by)^2+2(ax)(by)\\ \\ (ay)^2+(bx)^2-2(ay)(bx)=0\\ \\ (ay-bx)^2=0\\ \\ ay-bx=0\\ \\ \boxed{\sf \bf ay=bx}

Thanks

6 0
3 years ago
I have 3 green cubes, 4 red cubes, 2 black cubes, and 6 yellow cubes. What is the probability that I will randomly choose a blac
Strike441 [17]

Answer:

4/75 or 0.05333

Step-by-step explanation:

3+4+2+6=15 elements

2/15= probability to choose a black

6/15 = probability to choose a yellow cube

Probability to choose a black AND (*) a yellow = 2/15*6/15=12/225=4/75 or 0.05333

6 0
3 years ago
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