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ss7ja [257]
3 years ago
5

Which statements are true about a triangular pyramid? Check all that apply.

Mathematics
2 answers:
cestrela7 [59]3 years ago
7 0

Answer:

give me 0 stars but the guy above me thank you man he deserves 5 stars.

Step-by-step explanation:

hes smart and i am not g*y i swear

miss Akunina [59]3 years ago
4 0

Answer:

It has exactly four faces that are triangles.

It has 4 vertices.

It has 6 edges.

Step-by-step explanation:

A triangular pyramid is also termed as a tetrahedron.

The properties of a triangular pyramid include:

  • four triangular faces,
  • six edges
  • four vertex corners.

Among the four faces, any one of them can be considered to be the base of the pyramid.

The faces are of equal shape and size.

The edges have the same length.

The triangles are equilateral.

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I will mark brainliest!
Harrizon [31]

Answer:

a + 56.75 = 76.75

Step-by-step explanation:

that is because ,money raised on first day(a) + money raised on second day = 76.75

that gives us,  a = $20

3 0
3 years ago
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The surface area, S, of a right rectangular prism with length, l, width, w, and height, h can be found using the formula below.
anygoal [31]

Answer:

246 in^2

Step-by-step explanation:

Given data

Length= 8 in

Width= 3 in

Height= 9 in

SA= 2( lw + wh + hl)

substitute

SA= 2(8*3+ 3*9+ 9*8)

SA= 2(24+ 27+72)

SA= 2(123)

SA= 246 in^2

Hence the SA is 246 in^2

4 0
2 years ago
A store offers discounts on lunch-size chip bags when buying larger quantities. The graph below represents the total cost, in do
Bumek [7]

The difference in the price per bag for 150 bags versus 50 bags is $0.15 per bag.

<h3>What is the difference in the price of the bags?</h3>

If 150 bags on the x axis is traced to the y axis, the price of the bag is $38.

If 50 bags on the x axis is traced to the y axis, the price of the bag is $20.

Price per bag:

150 bags = 38 / 150 = $0.25

50 bags = $20 / 50 = $0.4

The difference = $0.4  $0.25 = $0.15

Please find attached the graph used in answering this question. To learn more about subtraction, please check: brainly.com/question/854115

6 0
2 years ago
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A random sample of 45 door-to-door salespersons were asked how long on average they were able to talk to the potential customer.
dimulka [17.4K]

Answer:

b.  =8.5+1.96*3/SQRT(45), and =8.5-1.96*3/SQRT(45)

Step-by-step explanation:

Sample size (n) = 45

Sample mean (M) = 8.5 minutes

Variance (V) = 9 minutes

Z-score for a 95% confidence interval (z) = 1.96

A confidence interval is defined by the following expression:

M\pm z\sqrt{\frac{V}{n} }

Applying the given data:

8.5\pm 1.96\sqrt{\frac{9}{45} }\\8.5\pm 1.96\frac{3}{\sqrt 45}

Writing in Excel statements, the limits of the interval would be

=8.5+1.96*3/SQRT(45), and =8.5-1.96*3/SQRT(45)

Therefore, the answer is alternative b.

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3 years ago
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