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Jobisdone [24]
3 years ago
10

Find the surface area of the pyramid. The triangular base has a height of 8 units and a base of 12 units. What is the base area?

What is the lateral area? What is the surface area?
Mathematics
2 answers:
Inga [223]3 years ago
7 0

Answer:

Base area is 48 lateral is 221.6 and surface area is 269.6

Step-by-step explanation:

USPshnik [31]3 years ago
4 0

Answer:

Base area is 48 lateral is 221.6 and surface area is 269.6

Step-by-step explanation:

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A chemical manufacturer wishes to obtain 700 litres of a 24% acid solution by mixing a 40% acid solution with a 15% solution. Ho
vekshin1
00 x 0.24 = a x 0.40 + ( 700 -a ) x 0.15 = 0.40 a - 0.15 a + 105.00 
<span>168.00 = 0.25a + 105.00 </span>
<span>a = 252 </span>
<span>Solution with 40% ....................252 liters........................ans </span>

<span>Solution with 15 % ...................700 - 252= 448 liters.........................ans</span>
4 0
3 years ago
All books in a store are being discounted by 30%
Dafna11 [192]
Part A: 0.7(x)

Part B: 8.96/0.7 ---> (You can solve this by yourself)


For getting the answer, you can assume the regular price of the book is x. Then, the sale price would be x-0.3x, which is 0.7x

For part B, the price is 0.7 of the original. Dividing the number by 0.7 gets you the original price

8 0
3 years ago
What is the best estimate for 3 1/3 x 5/6?
boyakko [2]
I got: 27/9 is the answer
6 0
3 years ago
Read 2 more answers
Consider the following sample set of scores. Assume these scores are from a discrete distribution. 21 29 32 38 38 45 50 64 72 10
ASHA 777 [7]

Answer:

Original data: 21 29 32 38 38 45 50 64 72 100

\bar X = \frac{21+29+32+38+38+45+50+64+72+100}{10}=48.9

Mode =38.

Median = \frac{38+45}{2}=41.5

Change 1: 2 29 32 38 38 45 50 64 72 100

\bar X = \frac{2+29+32+38+38+45+50+64+72+100}{10}=47

Mode =38.

Median = \frac{38+45}{2}=41.5

Change 2: 29 32 38 38 45 50 64 72 100

\bar X = \frac{29+32+38+38+45+50+64+72+100}{9}=52

Mode =38.

Median = 45

Step-by-step explanation:

Original data: 21 29 32 38 38 45 50 64 72 100

The mean is calculated with the following formula:

\bar X = \frac{\sum_{i=1}^{10} X_i}{10}

And if we replace we got:

\bar X = \frac{21+29+32+38+38+45+50+64+72+100}{10}=48.9

The mode is the most repeated value in the sample and on this case is Mode =38.

Since we have an even number of points the median is calculated as the average between the observations 5 and 6 from the dataset ordered.

Median = \frac{38+45}{2}=41.5

Change 1: 2 29 32 38 38 45 50 64 72 100

The mean is calculated with the following formula:

\bar X = \frac{\sum_{i=1}^{10} X_i}{10}

And if we replace we got:

\bar X = \frac{2+29+32+38+38+45+50+64+72+100}{10}=47

The mode is the most repeated value in the sample and on this case is Mode =38.

Since we have an even number of points the median is calculated as the average between the observations 5 and 6 from the dataset ordered.

Median = \frac{38+45}{2}=41.5

Change 2: 29 32 38 38 45 50 64 72 100

Now the sample size is 9 instead of 10

The mean is calculated with the following formula:

\bar X = \frac{\sum_{i=1}^{9} X_i}{9}

And if we replace we got:

\bar X = \frac{29+32+38+38+45+50+64+72+100}{9}=52

The mode is the most repeated value in the sample and on this case is Mode =38.

Since we have odd number of points the median is calculated from the 5 position of the dataset ordered.

Median = 45

7 0
4 years ago
Write in standard form
Alika [10]

Answer:

The equation was y= -3/4x + 19/4 in slope-intercept form, but it is x + 4/3y= 19/3

5 0
3 years ago
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