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2 years ago

What is the mean of the data set [3, 2, 2, 12, 6, 5, 14, 4]? A: 2 B: 4 C: 6 D: 7

Mathematics

1 answer:

Semenov [28]2 years ago

3 0

Answer: C.

Step-by-step explanation: 3+2+2+12+6+5+14+4=48 divided by 8 equals 6

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A teacher wants to give 3 markers to each of he 25 students. Markers come in packages of 8. How many packages of markers will th

Marysya12 [62]

Answer:

25*3*8=600

Step-by-step explanation:

25 students has 3 markrers for each then 25*3 is 75, after that marker come in packages of 8,so 75*8 is 600 packages.

7 0

3 years ago

Work out the sum of 1 4 , 4 8 and 2 3 . Give your answer as a mixed number in its simplest form

belka [17]

Answer:

1 2/3

Step-by-step explanation:

Given :

Find the sum of 1/2, 4 /8 and 2 /3

1/2 + 4/8 + 2/3

L.c.m = 24

(12 + 12 + 16) / 24

40 / 24

= 1 16/24

= 1 2/3

6 0

2 years ago

What is the value of x? 4 cm 32 cm 40 cm

Luba_88 [7]

Answer:

x=5

Step-by-step explanation:

Since 32 is 8 times 4 cm, then 40/8=5.

7 0

2 years ago

Read 2 more answers

A square pyramid. The square base has side lengths of 6 inches. The 4 triangular sides have a base of 6 inches and height of 9 i

Marrrta [24]

Answer:

The area of the pyramid’s base is 36 in².

The pyramid has 4 lateral faces.

The surface area of each lateral face is 27 in².

Step-by-step explanation:

"Lateral" means side, so the lateral faces are triangles.

The base is the bottom, which is a square.

To calculate the area of the base, use the formula for area of a square.

$A_{base} = s^{2}$

$A_{base} = (6 in)^{2}$

$A_{base} = 36 in^{2}$

To calculate the area of a lateral face, find the area of a triangle.

$A_{lateral} = \frac{bh}{2}$

$A_{lateral} = \frac{(6 in)(9 in)}{2}$

$A_{lateral} = \frac{54 in^{2}}{2}$

$A_{lateral} = 27 in^{2}$

In a pyramid, the number of lateral faces is the same as the number of sides in the base. The square base as 4 sides, so there are 4 lateral faces.

3 0

2 years ago

Which of the following expressions is equal to tan205°?

disa [49]

Tan205° = .466 tan55° = 1.428 tan25° = .466 -tan25° = " so just tan25

8 0

2 years ago