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oksano4ka [1.4K]
3 years ago
13

Find the volume of a pyramid with a square base , where the area of the base is 7.5 cm ^ 2 and the height of the pyramid is 8.6

cm. Round your answer to the nearest tenth of a cubic centimeter.
Mathematics
1 answer:
svetlana [45]3 years ago
4 0

Answer: 21.5cm³

Step-by-step explanation: This is your answer there is no way it is incorrect

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Which statements are true about the reflections symmetry of a regular heptagon?
lakkis [162]

Answer:

some statements that are true are :

Step-by-step explanation:

it has only 1 line of reflectional symmetry.

a line of symmetry will connect 2 vertices.

a line of symmetry will connect a vertex and a midpoint of an opposite side.

it has 7 fold symmetry.

a line of symmetry will connect the midpoints of 2 opposite sides.

3 0
3 years ago
How do you find the lateral surface are of a cylinder
saveliy_v [14]
Use this equation :
al=2(pi)rh
4 0
3 years ago
Draw the straight line y = 2x - 3
wel

Answer:

See the picture down below

Step-by-step explanation:

When you are drawing a line you should first mark the y-intercept, which in this case it's (0,-3) because the the b in the equation is -3. Then we will go 2 units up then 1 unit right. Keep going until you've run out of room. Then draw the line going through all the points.

8 0
3 years ago
I need help with 7th grade math please 45 points need help ASAP + brainleist
igor_vitrenko [27]

Answer:

Area = 601.8760801 ft^2

Step-by-step explanation:

Area of Rectangle: Area = Length* Height

Area of a Semi-Circle = π*r^2 /2

Area of Rectangle: Area = 14 * 21 = 294 ft^2

Area of a Semi-Circle = π * 14^2 / 2 = π * 196/2 = π * 98 ft^2

Add the Two Area: 294 ft^2 + 98π ft^2 = 601.8760801 ft^2

3 0
2 years ago
Read 2 more answers
2. The probability that a car will come to a complete stop at a particular stop sign is 0.4. Assume that the next four cars
kodGreya [7K]

Answer:

P(X = 0) = 0.1296

Step-by-step explanation:

This can be solved using the binomial distribution because the cars arriving at the stop are independent of each other. This means we will use:

P(X = x) = \binom{n}{x} p^{x} q^{n - x}

Where p is the probability of success, q = 1 - p is the probability of failure and n is the number of cars sampled.

p = 0.4

q = 0.6

n = 4

Therefore,

P(X = 0) = \binom{4}{0} 0.4^{0} 0.6^{4}

This is equal to

P(X = 0) = 1 \times 1 \times 0.1296

P(X = 0) = 0.1296

7 0
3 years ago
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