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Gala2k [10]
3 years ago
11

$3456 with a discount of 6.5%​

Mathematics
1 answer:
neonofarm [45]3 years ago
5 0

Answer:

$3231.36

Step-by-step explanation:

$3456 - 6.5%​= $3231.36

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Choose the correct simplification of the expression (8x − 5)(2x2 − 5x − 6). (1 point)
OleMash [197]
The easiest terms to check are the first (8x)(2x²) = 16x³ and the last (-5)(-6) = 30. This check eliminates the first choice. The remaining choices differ only in the sign and coefficient of the squared term, so that is the one we need to find.

The squared term will be the sum of the products of factors whose degrees total 2:
  (8x)(-5x) + (-5)(2x²) = -40x² -10x² = -50x²

The appropriate choice is
  16x³ -50x² -23x +30
6 0
3 years ago
The coordinates of the vertices of a regular polygon are given. Find the area of the polygon to the nearest tenth.
alexandr1967 [171]

Answer:

The area is equal to 8\ units^{2}

Step-by-step explanation:

we have

A(0, 0), B(2, -2), C(0, -4), D(-2, -2)

Plot the figure

The figure is a square (remember that a regular polygon has equal sides and equal internal angles)

see the attached figure

The area of the square is

A=AB^{2}

<u><em>Find the distance AB</em></u>

the formula to calculate the distance between two points is equal to

d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}

substitute the values

AB=\sqrt{(-2-0)^{2}+(2-0)^{2}}

AB=\sqrt{(-2)^{2}+(2)^{2}}

AB=\sqrt{8}

AB=2\sqrt{2}\ units

<u><em>Find the area of the square</em></u>

A=(2\sqrt{2})^{2}

A=8\ units^{2}

4 0
3 years ago
X4 - 4k3 + 4k Factor out the GCF of all three terms<br>​
Tatiana [17]

Answer:

Step-by-step explanation:

There isn't one. The first term is x^4.

The other two are stated in terms of k. There is nothing common here.

You can do 2 of the three. Terms 2 and 3 have a common factor of 4k, so what you can get is

x^4 - 4k(k^2 - 1)

5 0
2 years ago
Solve the system using elimination
Mamont248 [21]

13x - y = 3 .....(1)

x - 6y = -33 ......(2)

eqn (2) × 13

13x - 78y = -429 .....(3)

(3) - (1)

13x - 78y = -429

13x - y = 3

(-). (+). (-)

_________________

- 77y = 431

_________________

-77y = 431

y = 431 ÷ -77

y = -5.5

5 0
3 years ago
Read 2 more answers
5/20 = z/8 what does z equal
weeeeeb [17]

Answer:

z=2

Step-by-step explanation:

5/20=z/8

Rewrite the equation as z/8=5/20

z/8=5/20

Multiply both sides of the equation by 8.

8⋅z8=8⋅520

Simplify both sides of the equation.

z=2

Hope this helps! Plz mark as brainliest! :)

5 0
3 years ago
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