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3 years ago

Three less than the product of 18

Mathematics

1 answer:

ololo11 [35]3 years ago

8 0

Answer:

(18x)-3

Step-by-step explanation:

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To find 19+(11+37)Lennon added 19 and 11 Then he added 37 to the sum What property did he use?

Sliva [168]

Lennon used the property o addition

4 0

3 years ago

Generate two numerical patterns

Klio2033 [76]

Answer:

vvv

Step-by-step explanation:

2,4,6,8,10

Pattern Rule:Add 2

1,2,4,8,16

Pattern:Multiply by 2

Sorry these were simple.

8 0

3 years ago

If α and β are the zeros of the quadratic polynomial f(x) = 3x2–4x + 5, find a polynomialwhose zeros are 2α + 3β and 3α + 2β.

Lelechka [254]

Answer:

$\boxed{\sf \ \ \ 3x^2-20x+37\ \ \ }$

Step-by-step explanation:

Hello,

a and b are the zeros, we can say that

$f(x)=3(x^2-\dfrac{4}{3}x+\dfrac{5}{3}) = 3(x-a)(x-b)=3(x-(a+b)x+ab)$

So we can say that

$a+b=\dfrac{4}{3}\\ab=\dfrac{5}{3}$

Now, we are looking for a polynomial where zeros are 2a+3b and 3a+2b

for instance we can write

$(x-2a-3b)(x-3a-2b)=x^2-(2a+3b+3a+2b)x+(2a+3b)(3a+2b)\\= x^2-5(a+b)x+6a^2+6b^2+9ab+4ab$

and we can notice that

$a^2+b^2=(a+b)^2-2ab$ so

$(x-2a-3b)(x-3a-2b)=x^2-5(a+b)x+6[(a+b)2-2ab]+13ab\\= x^2-5(a+b)x+6(a+b)^2+ab$

it comes

$x^2-5*\dfrac{4}{3}x+6(\dfrac{4}{3})^2+\dfrac{5}{3}$

multiply by 3

$3x^2-20x+2*16+5=3x^2-20x+37$

4 0

3 years ago

Which pair of numbers is relatively prime?

Lesechka [4]

The answer would be D) 10 and 33.

5 0

3 years ago

BRAINLEST IF CORRECT!!!!which of the d-values satisfy the following inequality? d/5>4

irinina [24]

Answer:

d = 25

Step-by-step explanation:

$\frac{d}{5} >4$

The value of d has to satisfy the inequality

so replace d with one of the given options

$\frac{25}{5} >4$

We have to simplify the fraction first

$\frac{25}{5} =5>4$

5 0

2 years ago