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3 years ago

6

Use a tree diagram or systematic list to determine the number of ways a nickel, a dime, and a quarter can be flipped to get exac

tly one tail. Remember outcomes can be described with strings of T's and H's.

1 answer:

Eva8 [605]3 years ago

8 0

Is there any options I can chose from

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Find the area. The figure is not drawn to scale

poizon [28]

Answer:

96 square inches.

Step-by-step explanation:

From given picture we see that

BC=8 in

AD=10 in

Given that

AD=AB

Then AB=10 in

Apply Pythagorean theorem in triangle ABC to find AC

$(hypotenuse)^2=(base)^2+(perpendicular)^2$

$(AB)^2=(BC)^2+(AC)^2$

$(10)^2=(8)^2+(AC)^2$

$100=64+(AC)^2$

$100-64=(AC)^2$

$36=(AC)^2$

take square root

$6=AC$

Then area of triangle ABC $=\frac{1}{2}\left(base\right)\left(altitude\right)$

$=\frac{1}{2}\left(8\right)\left(6\right)=24$

There are total 4 congruent triangles.

Then total area of the given figure = 4(24)=96 square inches.

7 0

3 years ago

Which piece of wire is longer 2.16 meters or 2.061

Dmitry_Shevchenko [17]

It would be the 2.16 meters one. Because adding a 0 would be 2.160

7 0

3 years ago

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Can somebody help me out my grade are bad

andreyandreev [35.5K]

Answer:

3, 2, 6

Step-by-step explanation:

from left, top, and bottom

8 0

3 years ago

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(-11-10i)^2<br> I just need to know the steps to get to the answer.

jeka57 [31]

Answer:

21 + 220i

Step-by-step explanation:

reminder that i² = - 1

(- 11 - 10i)²

= (- 11 - 10i)(- 11 - 10i) ← expand using FOIL

= 121 + 110I + 110I + 100I²

= 121 + 220I + 100(- 1)

= 121 + 220i - 100

= 21 + 220i

3 0

3 years ago

What is the absolute value of the complex number Negative 4 minus StartRoot 2 EndRoot i?

IRINA_888 [86]

Answer:

$3\sqrt{2}$

Step-by-step explanation:

For the complex number $a+bi,$ the absolute value is $\sqrt{a^2+b^2}$

Given the complex number $-4-\sqrt{2}i.$ For this complex number,

$a=-4\\ \\b=-\sqrt{2},$

then the absolute value is

$\sqrt{(-4)^2+(-\sqrt{2})^2}=\sqrt{16+2}=\sqrt{18}=3\sqrt{2}$

6 0

4 years ago

Read 2 more answers