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katrin2010 [14]
2 years ago
11

Abigail is putting tiles on a table top. She needs 48 tiles for each of 8 rows. Each row will have 6 white tiles. The rest of th

e tiles will be purple. How many purple tiles will she need?
Mathematics
1 answer:
Zarrin [17]2 years ago
6 0

If there are 8 rows, there would have to be 6 in each row to make 48 (8x6=48).

If there had to be 6 white tiles in each of the 8 rows, than 6 out of 6 tiles would be white.

Therefore there would be 0 purple tiles.  

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salantis [7]

Answer:

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Step-by-step explanation:

3 0
2 years ago
show that thw roots of the equation (x-a)(x_b)=k^2 are always real if a,b and k are real. Please I really need help with this
VLD [36.1K]

Answer:

see explanation

Step-by-step explanation:

Check the value of the discriminant

Δ = b² - 4ac

• If b² - 4ac > 0 then roots are real

• If b² - 4ac = 0 roots are real and equal

• If b² - 4ac < 0 then roots are not real

given (x - a)(x - b) = k² ( expand factors )

x² - bx - ax - k² = 0 ( in standard form )

x² + x(- a - b) - k² = 0

with a = 1, b = (- a - b), c = -k²

b² - 4ac = (- a - b)² + 4k²

For a, b, k ∈ R then (- a - b)² ≥ 0 and 4k² ≥ 0

Hence roots of the equation are always real for a, b, k ∈ R


           

8 0
3 years ago
What type of function is represented by the table of values below?<br> 8<br> 12<br> 16<br> 20
Dominik [7]

Answer:

To be precise, I think it's a pattern question, where you have to add 4 to each number. I'm not very sure though.

8 0
2 years ago
A^2+2ab+b^2. solve for a=10 and b=50
qaws [65]
A² + 2ab + b² ; Solve when a=10 & b=50

Simply plug in 10 for a and 50 for b in our given equation :)

(10)² + 2(10)(50) + (50)²

Simplify.

100 + 20(50) + 2500

Simplify.

(100 + 2500) + 1000

Simplify.

2600 + 1000

Simplify.

3600

Hope I helped! :)

3 0
3 years ago
What is the median of the data? 68,69,71,71,71,73,74,75,75,78 answers: 71,72,78,72.5
Klio2033 [76]
The answer is 72 because ur supposed to do (71+73)/2
5 0
3 years ago
Read 2 more answers
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