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3 years ago

Evaluate the expression: 3(a + b - 3) - 212a + b - 4) when a = 2 and b = 1

Mathematics

1 answer:

olga_2 [115]3 years ago

3 0

Answer:

417

Step-by-step explanation:

3(2+1-3)-212*2+1-4=?

3-212*2+1-4=?

3-423+1-4=?

420+1-4=?

421-4=?

417

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On a coordinate grid, Pedro's house, P, is located at (-6, -6). He is walking to his friend Quinton's house, Q, located at (13,8

blagie [28]

Answer:

M(3.5, 1)

Step-by-step explanation:

Midpoint formula

x1+x2/2

y1+y2/2

-6 + 13/2 = 3.5

-6 + 2/2 = 1

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3 years ago

An NBA Basketball Court is a RECTANGLE that is 94 FEET long and 50 FEET wide. What is the AREA of the Court ? What is the PERIME

ivolga24 [154]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

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aksik [14]

Answer is 0.75

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3 years ago

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Cual es la forma más simple al efectuar la operación indicada en la expresión (-3) (-12) ?

gulaghasi [49]

Answer:

Cual es la forma más simple al efectuar la operación indicada en la expresión (-3) (-12) ? this means What is the simplest way to perform the operation indicated in the expression (-3) (-12)?

Step-by-step explanation:

Multiply -3 by -12 and get 36. hope this was helpful.

7 0

3 years ago

Consider 8x2 - 48x = -104.

ki77a [65]

Answer:

$3+ 2\mathbf{i}$

$3- 2\mathbf{i}$

Step-by-step explanation:

<u>Quadratic Equation Solving</u>

We have the equation:

$8x^2-48x=-104$

Divide by 8:

$x^2-6x=-13$

Now complete the squares so the left side is a perfect square of a binomial:

$x^2-6x+9=-13+9=-4$

Factoring the perfect square:

$(x-3)^2=-4$

Taking the square root:

$x-3=\sqrt{-4}$

The square root of a negative number is an imaginary number:

$x-3=\pm 2\mathbf{i}$

Solving for x:

$x=3\pm 2\mathbf{i}$

The solutions are:

$3+ 2\mathbf{i}$

$3- 2\mathbf{i}$

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2 years ago