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2 years ago

What is the perimeter of the rectangle shown on the coordinate plane, to the nearest tenth of a unit?

Mathematics

1 answer:

krok68 [10]2 years ago

7 0

Answer:

The answer is 30.6 Units.

Step-by-step explanation:

~10+~5+~10+~5=~30.6

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What is the result when 12x^3+17x^2+21x+10 is divided by 3x +2?

ruslelena [56]

Answer:4x>2+3x+5

Step-by-step explanation:

12x>3+8x>2+9x>2+21x+10

12x>3+8x>2+9x>2+6x+15×10

4x^2(3x+2)+9x^2×6x

4x^2(3x+2)+3x(3x+2)+15x+10

4x^2(3x+2)3x(3x+2)+5(3x+2)

Cancel

3x+2(4×^2+3x+5)

_____________

3x+2

4x^2+3x+5

5 0

2 years ago

An ellipse has a major semi-axis of 20 cm and a minor semi-axis of 14 cm. find the area.

avanturin [10]

In order to answer the question, you need to know the formula area of an ellipse.

Area = pi * a * b
a = minor axis
b = major semi-axis

Area = 3.14 * 20 * 14
Area = 879.20 cm^2

8 0

2 years ago

Identify the zeros of the function f(x) = 2x^2 − 4x + 5 using the Quadratic Formula

Nostrana [21]

For this case we have that by definition, the roots, or also called zeros, of the quadratic function are those values of x for which the expression is 0.

Then, we must find the roots of:

$2x ^ 2-4x + 5 = 0$

Where:

$a = 2\\b = -4\\c = 5$

We have to: $x = \frac {-b \pm \sqrt {b ^ 2-4 (a) (c)}} {2 (a)}$

Substituting we have:

$x = \frac {- (- 4) \pm \sqrt {(- 4) ^ 2-4 (2) (5)}} {2 (2)}\\x = \frac {4 \pm \sqrt {16-40}} {4}\\x = \frac {4 \pm \sqrt {-24}} {4}$

By definition we have to:

$i ^ 2 = -1$

So:

$x = \frac {4 \pm \sqrt {24i ^ 2}} {4}\\x = \frac {4 \pm i \sqrt {24}} {4}\\x = \frac {4 \pm i \sqrt {2 ^ 2 * 6}} {4}\\x = \frac {4 \pm 2i \sqrt {6}} {4}\\x = \frac {2 \pm i \sqrt {6}} {2}$

Thus, we have two roots:

$x_ {1} = \frac {2 + i \sqrt {6}} {2}\\x_ {2} = \frac {2-i \sqrt {6}} {2}$

Answer:

$x_ {1} = \frac {2 + i \sqrt {6}} {2}\\x_ {2} = \frac {2-i \sqrt {6}} {2}$

3 0

3 years ago

What expressions are equivalent to 7^3 * 7^x

solong [7]

Answer:

The question = (7^3)*(7^x)

When multiplying two exponents with the same base, all you do is add the exponents together and keep the same base

Therefore,

(7^3)*(7^x) = 7^(3+x)

Step-by-step explanation:

7^3+x is the answer

3 0

2 years ago

Find the length of the diagonal of a square with perimeter 32.

snow_lady [41]

Answer:

i think A. because she is 4/2

7 0

1 year ago