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2 years ago

Someone help me please

Mathematics

1 answer:

nirvana33 [79]2 years ago

8 0

Answer:

$426.9km^{2}$

Step-by-step explanation:

Area of the shaded region→

$A=\frac{1}{2}*40*27-\pi *6^{2}$

→ $540-113.04$

→ $426.9$

$---------$

hope it helps..

have a great day!!!

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Answer:

Part 1) $x=6.6\ units$

Part 2) $DE=16.2\ units$

Step-by-step explanation:

Part 1) Find the value of x

we know that

Triangles CDF and FDE are similar

therefore

The ratio of its corresponding sides is proportional and its corresponding angles are congruent

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$\frac{5}{9}=\frac{9}{2x+3} \\ \\5*(2x+3)=9*9\\ \\10x+15=81\\ \\10x= 81-15\\ \\10x=66\\ \\ x=6.6\ units$

Part 2) Find the length of DE

$DE=2x+3$

substitute the value of x

$DE=2(6.6)+3=16.2\ units$

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3 years ago

Read 2 more answers

Which of the following is the missing reason? Statements Reasons two thirds times x plus 7 equals negative 5 Given 2x 21 = â’15

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The correct option is B. Distributive property

Given,

$\frac{2}{3} x+7=-5\\$

On solving the above equation,

multiplying both sides by 3 we, get

$2x+21=-15$

now subtracting 21 from both the sides,

$2x=-36\\$

dividing both the sides by 2 we get,

$x=-18$

Since in the above steps we follow all the giving property except the distributive property.

Hence the correct option is B. Distributive property.

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2 years ago

A helicopter leaves an airport and flies south at 180 mi/h. Thirty minutes later, an airplane leaves the airport and follows the

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Answer:

36 minutes

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3 years ago

What’s the difference quotient simplified

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3 years ago

Use the formula for interest P=750 r=7% Y=25 A=?

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Answer:

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Interest = (Principle x rate x time)/100

Amount = Principle + interest

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Interest = 1312.50

Amount = 750 + 1312.50

Amount = 2062.50

7 0

3 years ago

Someone help me please ​

Someone help me please