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Mariulka [41]
4 years ago
13

3.25 + 3 tenths A.6.25 B.3.55

Mathematics
2 answers:
Vikki [24]4 years ago
8 0

                                           \huge\boxed{B,\;3.55}

___________________________________________________________

                                            \boxed{Explanation}

So, we have the following equation...

3.25+3/10=(?)

Lets turn the fraction into a decimal.

Here's how...

  • Divide the numerator by the denominator.
  • Remember, the top number is the numerator and the bottom number is the denominator.
  • The line in the middle of our fraction represents division.
  • Our numerator is 3, while our denominator is 10.

Therefore, 3/10=0.3.

Next, lets add our new decimal with 3.25.

3.25+0.3=3.55

This gives us our final answer... 3.55.

___________________________________________________________

<em>Hope it helps!</em>

<em>May i have brainliest?</em>

\huge\boxed{Thanks,\;Plip.}

strojnjashka [21]4 years ago
4 0

Answer:

b

Step-by-step explanation:

3.25+.3=3.55

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Solve for x in the equation 2 x squared + 3 x minus 7 = x squared + 5 x + 39.
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Answer:

\implies x=1\pm \sqrt{47}

Step-by-step explanation:

We want to solve for x in 2x^2+3x-7=x^2+5x+39

You need to group and combine like terms and write in standard form:

2x^2-x^2+3x-5x-7-39=0

\imples x^2-2x-46=0

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The solution can be obtained using the quadratic formula.

x=\frac{-b\pm \sqrt{b^2-4ac} }{2a}

We substitute the coefficients to get:

x=\frac{--2\pm \sqrt{(-2)^2-4*1*-46} }{2*1}

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x=\frac{2\pm2\sqrt{47} }{2}

\implies x=1\pm \sqrt{47}

The last choice is correct

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3 years ago
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Vinvika [58]

Step-by-step explanation:

Left hand side:

tan 203° + tan 22° + tan 203° · tan 22°

From angle sum identities, we know:

tan (α + β) = (tan α + tan β) / (1 − tan α · tan β)

Therefore:

tan (203° + 22°) = (tan 203° + tan 22°) / (1 − tan 203° · tan 22°)

tan (225°) = (tan 203° + tan 22°) / (1 − tan 203° · tan 22°)

1 = (tan 203° + tan 22°) / (1 − tan 203° · tan 22°)

tan 203° + tan 22° = 1 − tan 203° · tan 22°

Substituting:

1 − tan 203° · tan 22° + tan 203° · tan 22°

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3 0
4 years ago
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irinina [24]

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(B) 330

Step-by-step explanation:

Total number of students in the class = 11

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<em>HINT:  8! or 8 factorial represents [8x7x6x5x4x3x2x1]</em>

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