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kirill [66]
3 years ago
15

I really need help on this question if anyone could help

Mathematics
1 answer:
miss Akunina [59]3 years ago
8 0

Answer:

7986 square meter.

Step-by-step explanation:

Cut the composite shape into two shapes.

One rectangle and one triangle.

Rectangle area = 102×66 = 6732

A=lw

Triangle area = 66×(140-102)×1/2 = 1254

A=bh \times 1/2

Add the areas of the two shapes.

6732 + 1254 = 7986

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I’ve attached my work...
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6 0
3 years ago
How long would it take to double your principal in an account that pays 6.5% annual interest compounded continuously? round your
prisoha [69]
It would take 10.7 years.

The formula for continuously compounded interest is:
A=Pe^{rt}
where P is the principal, r is the interest rate as a decimal number, and t is the number of years.

Using our information we have:
A=Pe^{0.065t}

We want to know when it will double the principal; therefore we substitute 2P for A and solve for t:
2P=Pe^{0.065t}

Divide both sides by P:
\frac{2P}{P}=\frac{Pe^{0.065t}}{P}
\\
\\2=e^{0.065t}

Take the natural log, ln, of each side to "undo" e:
\ln{2}=\ln{e^{0.065t}}
\\
\\0.6931471806=0.065t

Divide both sides by 0.065:
\frac{0.6931471806}{0.065}=\frac{0.065t}{0.065}
\\
\\10.7\approx t
8 0
3 years ago
Read 2 more answers
The graph Below shows the solution set of which inequality
White raven [17]

Answer:

x² + 9

Step-by-step explanation:`

inequalitites are like the functions but sometime they just dont work out when we have squares and their roots and their parabalas and their roots

6 0
3 years ago
Show that sin (30°) = 1/2
Natali [406]

Answer:

Geometric proof in explanation.

Step-by-step explanation:

Draw an equilateral triangle.

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We are going to draw a line segment to cut the equilateral triangles into two congruent right triangles. I will do this in the attachment with p being positive.

You can see we will get 30-60-90 triangles.

We don't need to find the adjacent measurement to the angle whose measurement is 30 degrees since sine is opposite over hypotenuse.

\sin(30^\circ)=\frac{\frac{p}{2}}{p}=\frac{p}{2} \cdot \frac{1}{p}=\frac{1}{2}

\sin(30^\circ)=\frac{1}{2}

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3 years ago
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Andru [333]

Answer:

..................................................................................................

Step-by-step explanation:

5 0
2 years ago
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