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Ad libitum [116K]
2 years ago
13

What is the mean score Score 90 80 70 60

Mathematics
1 answer:
cupoosta [38]2 years ago
8 0

Answer:

75

Step-by-step explanation:

Four scores....  add them together and divide by four

 (90 + 80 + 70 + 60) / 4 = 75

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A cross section is made by the intersection of a plane and a square pyramid at an angle either parallel or perpendicular to the
alukav5142 [94]
A cross section is the two dimensional shape that is created when a slice is made through a solid figure by an intersection of a plane and the solid body.

A square pyramid is a pyramid with a square base.

Case 1: When the plane intersects the square pyramid at an angle perpendicular to the base but not through the vertex. In this case a trapezoid is formed.

Case 2: When the plane intersects the square pyramid at an angle perpendicular to the base and through the vertex. In this case a triangle is formed.

Case 3: When the plane intersects the square pyramid at an angle parallel to the base. In this case a square is formed.

<span>Therefore, a cross section made by the intersection of a plane and a square pyramid at an angle either parallel or perpendicular to the base can be of shapes:

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8 0
3 years ago
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Based on the pattern in the table what is the value of A
Arlecino [84]
Answer D, 1/64

The denominator has a pattern , if you look through it carefully each denominator is multiply by 2. There for you multiply 32 x 2 which gives you 64 so it’s 1/64. If you wanna confirm it , you could use a calculator to check your answer.


5 0
3 years ago
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What is the solution to this equation?<br> 9^x – 1 = 2 <br><br>A. 1 <br>B. 2 <br>C. -1/2 <br>D. 1/2​
choli [55]

Answer:

D

Step-by-step explanation:

7 0
2 years ago
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Pls help me give u a brainlest
neonofarm [45]

Answer:

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4 0
3 years ago
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In a school 40% are boys and 900 are girls. find the total number of students of the school and the number of boys
My name is Ann [436]

Answer:

1500 students

600 boys

Step-by-step explanation:

40% are boys, so 60% are girls.

Writing a proportion:

900 / 60% = x / 100%

x = 1500

There are 1500 students in the school, which means there are 600 boys in the school.

6 0
3 years ago
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