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Semenov [28]
2 years ago
9

1. Write an expression equivalent to:

Mathematics
1 answer:
Nataly_w [17]2 years ago
3 0
Example answers:

1) -8x + 66

2) -2(5x+10) -2(-3x+8)
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A regular pentagonal prism has a volume of 2,850 cubic millimeters. what is the height of the prism? a regular pentagonal prism
zlopas [31]

Answer:

Height = 19mm.

Step-by-step explanation:

Area of a regular polygon =  (A * P) / 2 where A = side / (2 * Tan (π / N)) where, N = Number of sides, A = Apothem,  P = Perimeter.

Here A = 5, P = 5*12 = 60 so

Area  of the base  = (5 * 60) / 2 = 150 mm^2.

Volume = area base * height so

Height = volume / area of base

            = 2850 / 150

            = 19 mm.

5 0
1 year ago
What is the standard form for a quadratic?
Zigmanuir [339]

Standard Form : f (x) = a(x - h)2 + k

Where in this equation (H,K) is the vortex of the parabola

<u>and there are four other ways to solving these quadratic</u>

1. Factoring

2. Completing the square

3. Your quadratic formula ( f (x) = a(x - h)2 + k )

4. Graphing

3 0
3 years ago
Read 2 more answers
Show the working out too please in numbers, thank you.
vazorg [7]

Hii :))

\tt \: - 5 =  \frac{x}{6}  \\   \tt \:  - 5 \times 6 = x \\  \boxed{  \tt \:  - 30 = x}

__________________

  • The correct value of x is <u>-</u><u> </u><u>3</u><u>0</u><u>.</u>

\overbrace{ \underbrace{ \sf \: \infty  \:  Carry \: on \: Learning \:  \infty }}

ᴛʜᴇᴇxᴛʀᴀᴛᴇʀᴇꜱᴛʀɪᴀʟ

3 0
2 years ago
Read 2 more answers
Of the 240 available seats for a concert, 63 seats were reserved. What fraction of seats was reserved? Write your answer in simp
Olin [163]
63/240 seats or 21/80
The greatest common denominator is 3, so you would divide both by 3.
6 0
3 years ago
Probability question!!
Alisiya [41]
Convert both perecentages to decimal form by dividing each of them by 100 to get 0.60 and 0.65. Next, multiply by 0.60 and 0.65 to get 0.39. Multiply the product by 100 to get the percentage form, 39%. So, the answer is 39%.
3 0
3 years ago
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