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3 years ago

Find the area of the shape shown below. Please help on a test!!!!

Mathematics

2 answers:

adelina 88 [10]3 years ago

6 0

Answer:

area is 10

Step-by-step explanation:

2.5 × 2.5 = 5 /2 = 2.5 area of the triangle is 2.5

theres 2 so are of both combined is 5

are of the middle would be 5

and 5 + 5 = 10

harina [27]3 years ago

3 0

Answer:

12.5 is the area

Step-by-step explanation:

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Need help with 7 and 8 please

iren2701 [21]

7 is “what was our opinion of the experiment and results?”

8 is “random”

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4 years ago

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What is the correct order of operations for simplifying the expression (x+3)^2-(x^2+9)/2x^2?

kramer

Answer:

The given expression is simplified as $\frac{(x+3)^2-(x^2 +9)} {2x^2} = \frac{3}{x}$

Step-by-step explanation:

Here, the given expression is:

$\frac{(x+3)^2-(x^2 +9)} {2x^2}$

Now, with ALGEBRAIC IDENTITIES:

$(a+b)^2 = a^2 + b^2 + 2ab$

Now, similarly: $(x+3)^2 = x^2 + (3)^2 + 2x(3) = (x^2 + 9 + 6x)$

Now, substituting the values in the given expression, we get:

$\frac{(x+3)^2-(x^2 +9)} {2x^2} \implies \frac{(x^2 + 9 + 6x)-(x^2 +9)} {2x^2}\\= \frac{(x^2 + 9 + 6x-x^2 -9)} {2x^2} \\= \frac{ 6x} {2x^2} = \frac{3}{x}$

Hence, the given expression $\frac{(x+3)^2-(x^2 +9)} {2x^2} = \frac{3}{x}$

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3 years ago

The distance between city A and city B is 22 miles. The distance between city B and city C is 54 miles. The distance between cit

Dmitry [639]

Answer:

To be honest I'm not very sure. I think it's either one of the obtuse answers. If not, then feel free to correct me.

Step-by-step explanation:

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3 years ago

Convert the decimal below to a fraction in simplest form.<br> 0.131<br> Answer:<br> Submit Answer

natita [175]

Answer:

131/100 is the fraction in the simplest form

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3 years ago

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-2e^8-8e^7 / 10e^2+40e

alukav5142 [94]

Answer:

$\dfrac{-e^6}{5}$

Step-by-step explanation:

Maybe you want to simplify ...

$\dfrac{-2e^8-8e^7}{10e^2+40e}=\dfrac{-2e^7(e+4)}{10e(e+4)}=\boxed{\dfrac{-e^6}{5}}$

The distributive property and the rules of exponents are useful.

ab +ac = a(b+c)

(a^b)(a^c) = a^(b+c)

1/a^b = a^-b

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4 years ago