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mote1985 [20]
2 years ago
13

Dale and 2 friends share 1/4 of a cake. Each piece is the same size. Dale believes each piece of cake has an angle measure of 45

degree. Is sale correct explain
Mathematics
1 answer:
Ivenika [448]2 years ago
7 0

Answer:

Dale is not correct (see the explanation)

Step-by-step explanation:

step 1

Divide 1/4 by 3 ( Dale and two friends)

(1/4)/3=\frac{1}{12}

step 2

we know that

The complete circle (cake) have a central angle of 360 degrees

Divide 360 degrees by 12

\frac{360^o}{12}= 30^o

That means----> Each slice of 1/12 has an angle measure of 30 degrees

therefore

Dale is not correct

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dedylja [7]
Uh thinking itz -66/100
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2 years ago
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Louden County Wildlife Conservancy counts butterflies each year. Data over the last three years regarding four types of butterfl
MrRa [10]

Incomple question. However, here's the remaining part of the question:

14

2009

Meadow Fritillary= 5

Variegated Fritillary= 7

Zebra Swallowtail= 33

Eastern-Tailed Blue= 242

Louden County Butterfly Count

2010

Meadow Fritillary 34

Variegated Fritillary 95

Zebra Swallowtail 21

Eastern-Tailed Blue 168

2011

Meadow Fritillary

Variegated Fritillary

Zebra Swallowtail

Eastern-Tailed Blue

10

170

<u>Options</u>:

A) All butterfly populations are steadily decreasing.

B)All butterfly populations were larger than usual in 2010.

C)The Eastern-Tailed Blue butterfly is more common than the others.

D)The Meadow Fritillary is equally common as the Variegated Fritillary

Answer:

<u>C</u>

Step-by-step explanation:

Looking through the above count data by Louden County Wildlife Conservancy from 2009 to 2011 we notice the Eastern- Trailed Blue butterfly has a higher count, which implies that the Eastern-Tailed Blue butterfly is more common than the other butterflies.

Therefore, we could infer from the samples, that the Eastern-Tailed Blue butterfly is more common than others from the records of the past 3 three years.

5 0
2 years ago
Which statement is true about the polynomial 3x2y2 − 5xy2 − 3x2y2 + 2x2 after it has been fully simplified
Len [333]
The polynomial <span>3x2y2 − 5xy2 − 3x2y2 + 2x2 can be simplified by combining like terms.

The result is:
-5xy2 + 2x2

The polynomial is
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the degrees is 3
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4 0
2 years ago
Captain Jessica has a ship, the H.M.S Crimson Lynx. The ship is two furlongs from the dread pirate Ishaan and his merciless band
Phoenix [80]

Answer:

9/40

Step-by-step explanation:

The probability of event A happening, then event B, is the probability of event A happening times the probability of event B happening given that event A already happened.

In this case, event A is the Captain missing the pirate ship and event B is the pirate hitting the Captain's ship.

The Captain fires first, so her ship can't be sunk before she fires her cannons.

So, the probability of the Captain missing the pirate ship is

3/5

If the Captain missed the pirate ship, the pirate has a normal chance to fire back.

So, the probability of the pirate hitting the Captain's ship given the Captain missing the pirate ship is

3/8

The probability that the Captain misses the pirate ship, but the pirate hits is then the probability of the Captain missing the pirate ship times the probability of the pirate hitting the Captain's ship given the Captain missing the pirate ship.

this is 3/5 X 3/8 = 9/40

​  

5 0
2 years ago
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Right triangles abc and dbc with right angle c are given below. If cos(a)=15,ab=12 and cd=2, find the length of bd.
dmitriy555 [2]

see the attached figure to better understand the problem

we have that

cos(A)=\frac{1}{5} \\ AB=12\ units\\ CD=2\ units

Step 1

<u>Find the value of AC</u>

we know that

in the right triangle ABC

cos (A)=(AC/AB)\\AC=AB*cos(A)

substitute the values in the formula

AC=12*(1/5)\\ AC=2.4\ units

Step 2

<u>Find the value of BC</u>

we know that

in the right triangle ABC

Applying the Pythagorean Theorem

AB^{2} =AC^{2}+BC^{2}\\ BC^{2}=AB^{2} -AC^{2}

substitute the values

BC^{2}=12^{2} -2.4^{2}\\BC^{2}= 138.24\\ BC=11.76\ units

Step 3  

<u>Find the value of BD</u>

we know that

in the right triangle BCD

Applying the Pythagorean Theorem

BD^{2} =DC^{2}+BC^{2}

substitute the values  

BD^{2} =2^{2}+11.76^{2}

BD=11.93\ units

therefore

<u>the answer is</u>

the length of BD is 11.93 units

8 0
2 years ago
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