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Mkey [24]
3 years ago
15

Please help me. ill give brainliest

Mathematics
2 answers:
satela [25.4K]3 years ago
7 0
So first you need to find the surface area of the cake pan in the recipe:

9 times 11 + (9 times 2)2 + (2 times 11)2=99+36+44 which you can figure out yourself. 

The second one is:
 
10 times 10+(10 times 10)2+(10 times 2)2= 100+200+40 which you can also figure out yourself. 

I am guessing you cannot use the pan you have for your recipe. 

 
yawa3891 [41]3 years ago
6 0
The surface area of the recipe pan is...
base (9x11) + 2 sides 2(9x2) + 2 more sides 2(11x2) which equals 179in²

the surface area of your pan is...
base (10x10) + 2 sides 2(10x2) + 2 more sides 2(10x2) which equals 140in²

HOWEVER the answers above don't answer the question whether or not its ok to use your pan. You need to calculate volume:

Recipe pan:
9x11x2= 198in³

Your pan:
10x10x2= 200in³

In reality this would probably be fine, but for the sake of the math problem I would say no you can't use it because they aren't equal. However you know your teacher better than I do so thats up to you. Hope this helps :)


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lisabon 2012 [21]

En un parallelogramo, los lados opuestos son paralelos. De la misma forma, los angulos opuestos son iguales y los angulos adjacentes suman 180 grados.

Con ello, podemos decir que:

a. Los lados RS y UT son paralelos.

b. Los lados RU y ST son paralelos.

c. El angulo en U es igual al angulo en S pues son opuestos

d. Los angulos en S y T son adjacentes . Esto quiere decir que, su suma es igual a 180 grados.

e. El angulo en R es igual al angulo en T pues son opuestos.

f. De forma similar al caso d, los angulos U y R son adjacentes, su suma es 180 grados.

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8 months ago
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Answer:

step attached

Step-by-step explanation:

5 0
3 years ago
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Teacl Smolts are young salmon at a stage when their skin becomes covered with silvery scales and they start to migrate from fres
erma4kov [3.2K]

Answer:

a) s = 8.81

b) Q1 = 43.4, Q2 = 49.4, Q3 = 57.35

c) See below

Step-by-step explanation:

(a) Find the standard deviation of the reflectance for these smolts. (Round your answer to two decimal places.)

In order to find the standard deviation, we need the mean first. The mean is defined as

\bar x=\displaystyle\frac{\displaystyle\sum_{i=1}^{n}x_i}{n}

where the x_i are the values of the data collected and n=50 the size of the sample.

So, the mean is

\bar x=50.882

Now, the standard deviation of the sample is defined as  

s=\sqrt{\displaystyle\frac{\displaystyle\sum_{i=1}^n(x_i-\bar x)^2}{n-1}}

and we have that our standard deviation is

s = 8.81

(b) Find the quartiles of the reflectance for these smolts

To find the quartiles, we must sort the data from lowest to largest:  

33.6,  37.7,  38.3,  38.7,  42,  42,  42.2,  42.4,  42.7,  42.8,  42.9,  43.1,  43.7,  43.8,  44.2,  44.6,  45.5,  45.7,  46.3,  46.6,  47.4,  47.6,  47.7,  47.9,  49.2,  49.6,  50.5,  50.9,  51.3,  53,  53.9,  54.8,  54.9,  55.5,  56,  56,  56.2,  57.1,  57.6,  58.3,  59,  59.5,  60.4,  63.2,  63.4,  63.5,  64.6,  68,  69.1,  69.2

The <em>first quartile</em> is the number between the 12th and the 13th data (so 25% of the data are below it and 75% above it)

So the 1st quartile is

Q_1=\displaystyle\frac{43.1+43.7}{2}=43.4

The <em>2nd quartile is the median</em>, the point between the 25th and 26th data, it splits the data in two halves.

Q_2=\displaystyle\frac{49.2+49.6}{2}=49.4

The 3rd quartile is the point between the 38th and 39th data (so 75% of the data are below it and 25% above it)

Q_3=\displaystyle\frac{57.1+57.6}{2}=57.35

(c) Do you prefer the standard deviation or the quartiles as a measure of spread for these data? Give reasons for your preference.

In this case, we prefer the quartiles as a measure of spread since the data are very scattered around the mean and there is no a central tendency.

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3 years ago
5 of the 10 tables at Harper's Italian Restaurant are full. What is the ratio of the number of empty tables to the number of ful
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Answer:

5:5

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Step-by-step explanation:

5/10 = are full

10-5= 5 empty tables

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5 points The price of a video game was reduced from $60 to $45. By what percentage was the price of the video game reduced? 15%
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Answer:

25 percent

Step-by-step explanation:

60*.25 is 15

60-15 is 45. it is 15 dollars off or 25 percent off

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