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Nataly [62]
3 years ago
6

PLEASE HELP I DONT KNOW

Mathematics
2 answers:
Aleonysh [2.5K]3 years ago
7 0

Answer:

Step-by-step explanation:

In the given circle

radius (r) = 6 cm

Diameter (d) = 2 * r

                    = 2 * 6

                   = 12 cm

hope it helps :)

Bad White [126]3 years ago
4 0

\huge{\textbf{\textsf{{\color{navy}{An}}{\purple{sw}}{\pink{er}} {\color{pink}{:}}}}}D)

<h2>12cm</h2>

because,

d= 2r

d= 2×6

d= 12cm

  • Thanks
  • Hope it helps
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Answer: a) 8.779 years

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<u>Step-by-step explanation:</u>

a)

A=P\bigg(1+\dfrac{r}{n}\bigg)^{nt}

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  • r: interest rate (convert to a decimal)
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Given: A = 1800, P = 900, r = 8% = 0.08, n = 3, t = unknown

1800=900\bigg(1+\dfrac{0.08}{3}\bigg)^{3t}\\\\\\2=\bigg(1+\dfrac{0.08}{3}\bigg)^{3t}\\\\\\ln\ 2=ln \bigg(1+\dfrac{0.08}{3}\bigg)^{3t}\\\\\\ln\ 2=3t\ ln\bigg(1+\dfrac{0.08}{3}\bigg)\\\\\\\dfrac{ln\ 2}{3\ ln\bigg(1+\dfrac{0.08}{3}\bigg)}=t\\\\\\\large\boxed{8.779=t}

b)  

A=Pe^{rt}

1800=900e^{0.08t}\\\\\\2=e^{0.08t}\\\\\\ln\ 2=0.08t\\\\\\\dfrac{ln\ 2}{0.08}=t\\\\\\\large\boxed{8.664=t}

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Evgesh-ka [11]

The complete question is as follows.

The equation a = \frac{1}{2}(b_1 + b_2 )h can be used to determine the area , <em>a</em>, of a trapezoid with height , h, and base lengths, b_1 and b_2. Which are equivalent equations?

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Step-by-step explanation: To determine b_1:

a = \frac{1}{2}(b_1 + b_2 )h

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\frac{2a}{h} = b_1 + b_2

\frac{2a}{h} - b_2 = b_1

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2a = (b_1 + b_2)h

\frac{2a}{h} = (b_1 + b_2)

\frac{2a}{h} - b_1 = b_2

Checking the alternatives, you have that \frac{2a}{h} - b_2 = b_1 and \frac{2a}{(b_1 + b_2)} = h, so alternatives <u>A</u> and <u>D</u> are correct.

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