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AleksandrR [38]
3 years ago
11

The ages of two groups of karate students are shown in the following dot plots:

Mathematics
1 answer:
Sliva [168]3 years ago
4 0

Answer:

Group A has less variability in the data.

Step-by-step explanation:

Since the range of group a is 10 (14 - 4), while group B has a range value of 19 (26 - 7) therefore group A has less variability in the data.

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39) The length of a rectangle is (2x - 1) and the width is (3x2 -5x + 2). Find the area of the rectangle.
Nuetrik [128]

Answer:

(4,-2)

Step-by-step explanation:

Start off by doing everything in the parenthesis which is everyone of them so 2x-1=-2 , your problem then should look like this:

-2(3x2-5x+2) carry the 2 over so multiply the 2 to everything so

(-6x-4+10x+2) add like numbers

10x+-6=4

-4+2=-2

(4,-2)

6 0
2 years ago
Which of the following is a polynomial with roots: − square root of 5 , square root of 5 , and −3?
tresset_1 [31]
Roots: - √5 , √5, and - 3

=> these are factors of the polynomial: (x + √5), (x - √5), and (x + 3).

Multiply those three factors:

(x + √5) (x - √5) ( x + 3) = [x^2 - 5] ( x + 3 ) = x^2 + 3x^2 - 5x - 15

Therefore the polynomial x^2 + 3x^2 - 5x - 15 is a polynomial with the given roots.

Answer: option B. x^3 + 3x^2 - 5x - 15
4 0
3 years ago
Which statement is true about the given set of data? {(4, 0), (5, 0), (8, 0), (11, 0)}
Anni [7]

Answer:

a

4,5,8,11 are the domain

Step-by-step explanation:

x is always the domain, input and It could also be a function but I don't think that only four five eight and 11 are functions so I would go with a

7 0
3 years ago
Find the surface area.
Triss [41]

Answer:

196 ft^{2}

Step-by-step explanation:

Surface are of 2 rectangles = 2(2*4) = 16 ft^{2}

surface are of the base rectangle = 4*3 = 12 ft^{2}

Area of tow triangles =2( \frac{1}{2} * 2* 2)= 4ft^{2}

total = 16+12+4

= 196 ft^{2}

3 0
3 years ago
12 decreased by some number h
Nimfa-mama [501]

Answer:

12 - h

Step-by-step explanation:

5 0
3 years ago
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