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3 years ago

Ruby is making decorative pillows for her living room. She bought 3 1/2

Mathematics

1 answer:

just olya [345]3 years ago

7 0

Answer:

$20 (might be wrong)

Step-by-step explanation:

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Which equation can be used to calculate the surface area of the triangular prism net show below?

erastovalidia [21]

Answer:

360cm

Step-by-step explanation:

The top square is 10 x 13 = 130

The middle square is 10 x 12 = 120

Both side triangles are 5 x 12 = 60. You would halve it but there are two triangles.

5 x 10 = 50

50 + 120 = 170

170 + 130 = 300

300 + 60 = 360

Equation would be (10 x 13) + (10 x 12) + (5 x 12/2) + (5 x 12/2) + (10 x 5)

The equation options seem like they are missing some numbers or something

4 0

4 years ago

Who can finish this for me

Paladinen [302]

Answer:

Step-by-step explanation:

$(5 - 5 {x}^{4} - {x}^{3} ) - (6 {x}^{3} - 4 {x}^{4} - 3)$

Remove unnecessary parentheses

$5 - 5 {x}^{4} - {x}^{3} - (6 {x}^{3} - 4 {x}^{4} - 3)$

When there is a (-) in front of an expression in parentheses, change the sign of each term in the expression

$5 - 5 {x}^{4} - {x}^{3} - 6 {x}^{3} + 4 {x}^{4} + 3$

Collect like terms

$5 + 3 - 5 {x}^{4} + 4 {x}^{4} - {x}^{3} - 6 {x}^{3}$

$5 + 3 - {x}^{4} - 7 {x}^{3}$

Add the numbers

$8 - {x}^{4} - 7 {x}^{3}$

Use the commutative property to reorder the terms

$- {x}^{4} - 7 {x}^{3} + 8$

Hope this helps...

Best regards!!

8 0

4 years ago

The<br> What is the slope of the line?

Shtirlitz [24]

Answer:

-1

Step-by-step explanation:

Slope is calculated with the general equation $\frac{x_{2}-x_{1} }{y_{2}-y_{1}}$ where you compare the difference between two sets of data points on the slope.