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3 years ago

6 erasers cost $6.60. Which equation would help determine the cost of 3 erasers?

Mathematics

1 answer:

AveGali [126]3 years ago

3 0

Answer:

3(6.60/6)

Step-by-step explanation:

i dont see other equations but here is one

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Please help me with this problem

Nookie1986 [14]

In order for two lines to be perpendicular, their slopes must multiply together to equal to negative one
So we do negative one divided by 2/5 to get the slope of the red line
Which is -5/2
To check, we do 2/5 multiplied by -5/2 which equals to -1 so our answer is correct

8 0

4 years ago

Read 2 more answers

Write an equation for the cubic polynomial functior

d1i1m1o1n [39]

So, the cubic polynomial function is $x^3-10x^2+31x-30=0$

No, none of the roots have multiplicity.

Step-by-step explanation:

We need to write an equation for the cubic polynomial function

whose graph has zeroes at 2, 3, and 5.

Zeros mean:

x=2, x=3 and x=5

x-2=0, x-3=0 and x-5=0

Multiplying all the factors:

$(x-2)(x-3)(x-5)=0\\(x-2)(x(x-5)-3(x-5))=0\\(x-2)(x^2-5x-3x+15)=0\\(x-2)(x^2-8x+15)=0\\x(x^2-8x+15)-2(x^2-8x+15)=0\\x^3-8x^2+15x-2x^2+16x-30=0\\x^3-8x^2-2x^2+15x+16x-30=0\\x^3-10x^2+31x-30=0\\$

So, the cubic polynomial function is $x^3-10x^2+31x-30=0$

No, none of the roots have multiplicity, A root has multiplicity if it appears more than 1 time. Like if (x-1)^2 is a root then 1 has multiplicity 2

Keywords: Polynomial Function

Learn more about Polynomial Function at:

#learnwithBrainly

6 0

3 years ago

What two positive real numbers whose product is 50 have the smallest possible sum?

Llana [10]

X * y = 50
y = 50 / x
S = x + y = x + 50 / x
S` = 1 - 50 / x²
1 - 50 / x² = 0
50 / x² = 1
x² = 50
x = √ 50 = 5 √2
y = 50 / 5√2 = 5 √2
Answer:
Those numbers are: x = 5√2 and y = 5√2.

7 0

3 years ago

Every integer is a whole number true or false

yKpoI14uk [10]

A whole number is a whole positive number (0, 1, 2,3 ,4....)

Integers are any whole number (negative or positive)

The answer is false

because an integer like - 4 is not a whole number

6 0

3 years ago

Frank shows that triangle A is congruent to triangle B by rotating triangle A around point J and then translating it so it match

alisha [4.7K]

Answer:

If right triangles have congruent hypotenuses and one pair of congruent legs, the triangles are congruent.

Step-by-step

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7 0

3 years ago