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3 years ago

Write in the name of the molecular geometry for each molecule described below.

Mathematics

2 answers:

Ivanshal [37]3 years ago

8 0

Answer:

linear

tetrahedral

bent

trigonal-bipyramidal

Step-by-step explanation:

Rzqust [24]3 years ago

6 0

Answer:

linear

Step-by-step explanation:

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A home builder wants to decorate the post at the bottom of a stairway. One way to do this is to glue a square-based pyramid to t

AysviL [449]

We have been given net of a pyramid. We are asked to find the total surface area of the pyramid.

The surface area of the pyramid will be area of base plus area of 4 triangular sides.

We have been given that base of pyramid is square, so area of base will be square of base side.

$\text{Area of base}=(\text{10 in})^2=100\text{ in}^2$

Let us find area of one triangular side.

$\text{Area of triangle}=\frac{1}{2}\times \text{Base}\times\text{Height}$

$\text{Area of triangle}=\frac{1}{2}\times \text{10 in}\times\text{6 in}$

$\text{Area of triangle}=\text{5 in}\times\text{6 in}$

$\text{Area of triangle}=30\text{ in}^2$

Now we will multiply area of one triangular face by 4 to find area of 4 triangular faces.

$\text{Area of 4 triangular faces}=4\times 30\text{ in}^2$

$\text{Area of 4 triangular faces}=120\text{ in}^2$

Total surface area of pyramid would be area of base plus area of 4 triangular faces.

$\text{Total surface area of pyramid}=100\text{ in}^2+120\text{ in}^2$

$\text{Total surface area of pyramid}=220\text{ in}^2$

Therefore, 220 square inches of copper sheet are needed to make one pyramid.

4 0

3 years ago

What is the simplified form of the following expression 2 sqrt 27 + sqrt 12 -3 sqrt 3-2 sqrt 12

Dmitrij [34]

Answer:

√3

Step-by-step explanation:

2√27 + √12 − 3√3 − 2√12

2√27 − √12 − 3√3

2√(9×3) − √(4×3) − 3√3

2×3√3 − 2√3 − 3√3

6√3 − 2√3 − 3√3

√3

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3 years ago

A rental car agency charges $249 per week plus $0.25 per mile to rent a car. the charge for a minivan is $180 per week plus $0.4

Alecsey [184]

Answer:

460 miles, 1 week

Step-by-step explanation:

249 per week + 0.25 per mile

180 per week + 0.4 per mile

after 460 miles in 1 week the cost will be the same

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3 years ago

HELP ME WITH THIS PLEASE!!!!

rjkz [21]

The answer is number two.

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3 years ago

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-BARSIC- [3]

Answer:

ebhats

Step-by-step explanation:

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3 years ago

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