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Nuetrik [128]
3 years ago
14

The table shows the advertised cost and total cost after sales tax is included to two items purchased.

Mathematics
1 answer:
Softa [21]3 years ago
6 0

Answer:

t = 0.05a

t = 1.05a

Step-by-step explanation:

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El área de un rectángulo se calcula multiplicando la longitud de la base por la longitud de su altura.
ioda

<span>Para obtener el otro número, debemos dividir la base por el área. Haciendo eso obtenemos 8.6 Para verificar, multiplicamos 10.4 y 8.6. 10.4 x 8.6 = 89.44

 Entonces la respuesta es B.) 8.6</span>
4 0
3 years ago
Triangle A B C is shown. The length of B C is 6 and the length of A B is 2 StartRoot 2 EndRoot. Angle A B C is 80 degrees. Trigo
lawyer [7]

Answer:

8.4 square units

Step-by-step explanation:

See attachment for the figure.

Trigonometric area formula is Area =\frac{1}{2}\times absin(C)

Where a and b are two sides of the triangle and C is the angle between these two sides.

Given:

side a = 6 units, c = 2√2 units and ∠B = 80°

Then area of the triangle :

Area = \frac{1}{2}\times acsin(B)

       = \frac{1}{2}\times acsin(B)

       = \frac{1}{2}\times 6\times 2\sqrt{2}\times sin(80)

       = 6√2×sin80°

       = 6×(1.414)×0.9848

       = 8.36 square units

       ≈ 8.4 square units

6 0
3 years ago
Literal equations 5y-72=7+5x
joja [24]

Step 1. Add 72 to both sides

5y = 7 + 5x + 72

Step 2. Simplify 7 + 5x + 72 to 5x + 79

5y = 5x + 79

Step 3. Divide both sides by 5

y = 5x + 79/5

4 0
3 years ago
Expand and simplify (3x-2)^2
nasty-shy [4]
(3x - 2)^2  is the same as:

(3x - 2)(3x - 2)

use the FOIL method: First, Outside, Inside, Last

3x(3x) = 9x²
3x(-2) = -6x
-2(3x) = -6x
-2(-2) = 4

9x² - 6x - 6x + 4

Combine like terms

9x² (- 6x - 6x) + 4

9x² - 12x + 4 is your answer

hope this helps
5 0
3 years ago
The base of a parallelogram is 1.4 feet long and the height is 0.32feet. What is the area of the parallelogram ​
bija089 [108]

Step-by-step explanation:

In a parallelogram

base (b) = 1.4 feet

height (h) = 0.32 feet

Now

Area of the parallelogram

= b * h

= 1.4 * 0.32

= 0.448 feet²

Hope it will help :)

6 0
3 years ago
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