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omeli [17]
3 years ago
6

Multiply (x - 5)(3x + 6) Express the answer in standard form

Mathematics
1 answer:
levacccp [35]3 years ago
7 0

3 { x}^{2}  - 9x - 30
Work in image above.

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ABCDE is a pentagon.
Katena32 [7]

Answer:

area = 44 cm²

Step-by-step explanation:

rectangle area = bh = 8 x 4 = 32 cm²

triangle height² = 5² - 4³ = 25 - 16 = 9

triangle height = 3

triangle area = 1/2bh = 1/2(8)(3) = 12 cm²

32 cm² + 12 cm² = 44 cm²

area = 44 cm²

8 0
3 years ago
Sven shoots a cannon ball out of a cannon and the path of the ball is modeled in the graph. After 8 seconds how high is the cann
DedPeter [7]

Answer:

20 feet

Step-by-step explanation:

7 0
3 years ago
Algebra 1 Word Problem
Ierofanga [76]

Answer:

otterbox costs $95; beats costs $210

Step-by-step explanation:

x = otterbox   y = beats

4x + 2y = 800      y = 2x + 20

4x + 2(2x + 20) = 800

4x + 4x +40 = 800

8x + 40 = 800

8x = 800 - 40

8x = 760

x = 760 / 8

x = 95  Otterbox costs $95 each


4x + 2y = 800

4(95) + 2y = 800

380 + 2y = 800

2y = 800 - 380

2y = 420

y = 420 / 2

y = 210   Beats costs $210


4(95) + 2(210) = 800

380 + 420 = 800

8 0
3 years ago
Read 2 more answers
I'm trying to rearange this equation so that t is the subject and i need help
gregori [183]
Work backwards.

s=ut+(at^2)/2

Subtract ut.

s-ut=(at^2)/2

Multiply by 2.

2(s-ut)=at^2

Divide by a.

2(s-ut)/a=t^2

Find the square root:

\sqrt{2(s-ut)/a}=t
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3 years ago
Polygon c has an area of 7 square units. Jennie drew a scaled version of polygon c and labeled it polygon d. Polygon d has an ar
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Are you good in geometry I can do this fort you if do my question about geometry ok
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