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Marta_Voda [28]
3 years ago
14

A rectangular pyramid. The rectangular base has a length of 10 centimeters and a width of 2 centimeters. 2 triangular sides have

a base of 2 centimeters and a height of 8 centimeters. 2 triangular sides have a base of 10 centimeters and a height of 6.3 centimeters.
What is the surface area of the rectangular pyramid shown?
Mathematics
2 answers:
pentagon [3]3 years ago
6 0

Answer:

99

Step-by-step explanation:

dexar [7]3 years ago
4 0

Answer:

99 cm2

Step-by-step explanation:

<u>1. to break this up a bit first find the area of the base</u>

10*2 = 20

<u>2. now 2 triangular sides with the base of 2</u>

2*8/2= 8 (each triangle is 8 cm2)

there's two of them so it's 16

<u>3. now the last two triangular sides</u>

10*6.3/2=31.5

there's two of them so it's 63

<u>4. add it all up: 20 + 16 + 63 =99</u>

<u />

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Assume the world catch of fish in 1950 was 12 million tons and in 1955 it was 96 million tons.
Rama09 [41]

The rate of change is 16.8 million tons per year

<em><u>Solution:</u></em>

Given that, the world catch of fish in 1950 was 12 million tons and in 1955 it was 96 million tons

<em><u>The average rate of change is given by formula:</u></em>

\text{ Average rate of change } = \frac{\text{ change in value }}{\text{ number of years }}

Value in 1950 = 12 million tons

Value in 1955 = 96 million tons

Change in value = value in 1955 - value in 1950

Change in value = 96 million - 12 million = 84 million tons

Number of years = 1950 to 1955 = 5 years

<em><u>Substitute the given values in formula,</u></em>

<em><u></u></em>\text{ Average rate of change } = \frac{84 \text{ million tons}}{5} = 16.8 \text{ million tons}<em><u></u></em>

Thus rate of change is 16.8 million tons per year

5 0
3 years ago
Question 1 Draw a line through the point (−2,−2) with a slope of 1/4. Draw a line through the point (2, 0) with a slope of 1/4.
Natasha2012 [34]

Answer:

line1:y=\frac{1}{4}x-\frac{3}{2}

line2:  y=\frac{1}{4}x -\frac{1}{2}

Step-by-step explanation:

4 0
2 years ago
Please answer (-4) + (-5)
sertanlavr [38]
-9

There are the same signs so you'd just add them together and use whatever sign they are..
7 0
3 years ago
I need help please, anyone will to help?<br>​
Natasha2012 [34]

Answer:you just add the numbers to get answer

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
8(y+4)-2(y-1)=70-3y help pls
jeka57 [31]

Answer:

y = 4

Step-by-step explanation:

8(y+4)-2(y-1)=70-3y

8y+32-2y+2=70-3y

Grouping of like terms

8y-2y+3y=70-32-2

9y=36

Divide both sides by 9

9y/9 = 36/9

9 cancels itself and 9.

y=36/9

y=4

Therefore, y = 4.

Hope it helps.

If so, mark as brainliest.

8 0
3 years ago
Read 2 more answers
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