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3 years ago

9

The figure consists of 12 congruent equilateral triangles. The area of one equilateral triangle is a cm2. The area of the hexago

n, shaded slightly darker, is b cm2.

2 answers:

IceJOKER [234]3 years ago

8 0

Answer:

a,b,e on edg

Step-by-step explanation:

Art [367]3 years ago

7 0

Gotta add 12 by the size of 2x which with equal the shaded 3

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Need help pls. <br> B is a boat on a bearing of 60degrees what is the nearing from A to B.

Verizon [17]

Answer:

Step-by-step explanation:

the bearing of A from B is 065º. ... A boat sails from a

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3 years ago

how do i make the answer appear in pi form. i did 1/6 pi multiply by 1/12 pi and the answer was 0.1370778389 i want it in pi how

andreev551 [17]

Step-by-step explanation:

what you did was you multiplied all numbers (incl. pi as number) :

1/6, pi, 1/12, pi

and that gives 0.137077839. no i or pi attached. just the plain result number.

so, if you need to just calculate the factors of pi, but don't need the fully numeric result, then your problem looks like

1/6 × pi × 1/12 × pi = 1/72 × pi²

so, you have an expression of pi² with a factor of 1/72.

you only need to type in all the factors, not pi itself (that's what you need to add at the end yourself).

5 0

3 years ago

What is 3 15/16 simplified?

Arada [10]

It should just be 3 15/16 because you can’t really simplify 15/16 because it’ll just give you decimals. For example; 15/3 is 5 but 16/3 is 5.333.... and 15/5 is 3 and 16/5 is 3.2, and 15/2 is 7.5 and that won’t work because it turns into a decimal.

6 0

3 years ago

Suppose that grade point averages of undergraduate students at one university have a bell-shaped distribution with a mean of 2.5

Doss [256]

Answer:

Using the Empirical Rule, we find that .997 (99.7%) of students have grade point averages that are between 1.23 and 3.81.

Step-by-step explanation:

Calculate the z-scores corresponding to a GPA of 1.23 and 3.81.

$\displaystyle z=\frac{1.23-2.52}{.43} = \frac{-1.29}{.43}= -3$
$\displaystyle z=\frac{3.81-2.52}{.43}= \frac{1.29}{.43} =3$

We want to find the area between the z-scores of -3 and 3.

The <u>Empirical Rule</u> tells us that 99.7% of the data lies <em>within three standard deviations</em> under the normal curve.

Therefore, the <u>area</u> between <em>-3 < z < 3</em> is about <u>.997</u>, or around <u>99.7%</u>.

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3 years ago

Ashley spent half of her lunch money on a turkey sandwich. Then she spent two-thirds of the money she had left on a bottle of ju

Firdavs [7]

$4.50

.75×3=2.25

2.25×2=4.50

7 0

3 years ago

Read 2 more answers