3 years ago

A house painter completed painting 4 ½ walls in one hour. At this rate, how many walls can be painted in 8 hours?

Mathematics

1 answer:

BabaBlast [244]3 years ago

7 0

36 walls can be painted in 8 hours. 4 1/2 times 8 = 36

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Test 1. Give the appropriate factoring technique and factors of the following polynomials.

shutvik [7]

1) 5t^2 (1 + 6t)
2) 4x^3y^5 (5x + 2y)
3) (5r + 6x)(5r - 6x)
4) (x + 10)(x - 10)
5) (x - 3)^2
6) (x -5)(x - 3)
7) 3(16r^3 + 9)
8) 8(c^3 + 8d^3)
9) (2r - 125)(4r^2 + 250r + 15625)
10) (c + 3)(c - 1)

3 0

2 years ago

X^2-5x-6<br> X^2+3x-40<br> X^2+3x-4

luda_lava [24]

x² - 5x - 6

= x² + x - 6x - 6

= x(x + 1) - 6(x + 1)

= (x - 6) (x + 1)

x² + 3x - 40

= x² + 8x - 5x - 40

= x(x + 8) -5(x + 8)

= (x - 5) (x + 8)

x² + 3x - 4

= x² + 4x - x - 4

= x(x + 4) -1(x + 4)

= (x - 1) (x + 4)

4 0

3 years ago

A gymnastics coach records the scores of a gymnast and develops the probability distribution below. What is the

Alika [10]

Answer: 0.14

Step-by-step explanation: took the review and got it right

3 0

2 years ago

The mean salary offered to students who are graduating from Coastal State University this year is $24,245, with a standard devia

leva [86]

Answer: The probability that the mean salary offer for these 80 students is $23,500 or less equals to 0.4054

Step-by-step explanation: Please find the attached file for the solution

5 0

3 years ago

A gardener planted some seedlings at equal distances apart along a straight road. The 3rd seedling and the 5th seedling were 9/1

ratelena [41]

Answer:

Answer:

17 seedlings

Step-by-step explanation:

Given;

The seedlings are at an equal distance in a straight line.

Distance between 3rd seedling and 5th seedling = 9/10 m

So, distance between 3rd seedling and 4th seedling = 9/10 ÷ 2 = 9/20 m

So, the distance between two seedlings in a line = 9/20 m

The given distance between 2nd seedling and the last seedling = 6 3/4 m = 27/4 m

8 0

2 years ago