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xxTIMURxx [149]
4 years ago
12

The volume of the triangular pyramid is 110 cubic centimeters. The base of the triangle is

Mathematics
1 answer:
slava [35]4 years ago
4 0

The height of the pyramid is 11 cm

<u>Step-by-step explanation:</u>

Let the height of the pyramid be 'h'

Volume of the triangular pyramid= (1/3) (base area) (height of the pyramid)

110 = (1/3) (1/2) (10) (6) (h)

110 = (1/6) (60) (h)

110 = (10) h

h = 110/10

h = 11 cm

The height of the pyramid is 11cm

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3 years ago
Help please! There are 3 items in an order. They cost $8.95, $11.49, and $12.75. The sales tax for this order is 6.5%.
vredina [299]

Answer: $35.35

Step-by-step explanation:

Facts

3 items

item 1: 8.95

item 2: 11.49

item 3: 12.75

6.5% sales tax

Step 1: Find the total cost of the items ,before tax

8.95+11.49+12.75= 33.19

Step 2: Apply the sales tax

6.5% of 33.19 = 2.15735 --> approximatley $2.16

Step 3: Add the sales tax amount to the total cost of the items to find the final total cost.

$33.19+$2.16= $35.35  

Hence the answer is B

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3 0
2 years ago
Read 2 more answers
Find X using the given information
aleksley [76]

Answer:

Just so you hear, Whirlybot,  these circle problems are always "tricks"  and they are tough.  You have to remember a bunch of implied things

Step-by-step explanation:

One thing to recall is that the angle from the tangent point to O at the center is also a 90° angle.  so you now know, that the line from the point where the circle touches the tangent line to the center is a right angle and you have part of that 90° already.  the 50 is one part and there for the next part is 40 °  Since we now know that the line from the tangent to the center is forming an internal angle with that line going to X of 40 °  we know that X is also 40 ° b/c the triangle formed by the line to the center is going to be the same length as the line from the center to the X.  That's an Isosceles triangle.  they have the same angles at the two same length legs.  

I know, I went thur a whole pile of logic, but that's what makes this kind of problem tough.   you just have to keep thinking about things you know.

X = 40 °

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3 years ago
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Fynjy0 [20]
Hi, I'm an employer of Brainly. Someone will answer you in the next 10 minutes. Thank you for your patience! Have a great day.
3 0
3 years ago
Please help asap i’m stuck i’ll mark brainlest
klio [65]

Answer:

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