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3 years ago

11

You are determining the mass of an object using a triple beam balance. When the pointer is lined up with the zero mark, the ride

rs show values of 300 grams, 20 grams, and 8.0 grams. What is the mass of the object?

1 answer:

Molodets [167]3 years ago

3 0

328 grams is the mass.

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2/9 of the people at Alejandro's are children. If there are 108 people at the

statuscvo [17]

84 adults ; I did 108/9 = 12 then 12x7 = 84 because 9-2 = 7 and we wanted to find out the remaining number of people :))

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3 years ago

Write x2 - 12x + 8 = 0 in vertex form.

antiseptic1488 [7]

(x-4)^2-19=y
you first add the three to the other side, then add 16 on both sides, make the left side x-4 squared, and lastly you subtract 19 from both sides.

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3 years ago

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The length of a field in yards is a function f( n ) of the the length in n feet. Write a function rule for this situation.

Phantasy [73]

Answer:

$f(n)=\frac{1}{3}n$

Step-by-step explanation:

To convert from feet to yards, divide by the value 3.

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3 years ago

Given the trinomial 2x*2 + 4x + 4, predict the type of solutions. a. Two rational solutions b. One rational solution c. Two irra

OverLord2011 [107]

Answer:

d. Two complex solutions

Step-by-step explanation:

We have been given a trinomial $2x^2+4x+4$ and we are supposed to predict the type of solutions of our given trinomial.

We will use discriminant formula to solve for our given problem.

$\text{Discriminant}=b^2-4ac$ , where,

$a =\text{Coefficient of }x^2$ ,

$b =\text{Coefficient of }x$ ,

$c =\text{Constant }$

Conclusion from the result of Discriminant are:

$D$

$D=0\text{ means one real zero with of multiplicity two}$

$D>0\text{ means two distinct zeroes}$

Upon substituting our given values in above formula we will get,

$\text{Discriminant}=4^2-4*2*4$

$\text{Discriminant}=16-32$

$\text{Discriminant}=-16$

Since our discriminant is less than zero, therefore, out given trinomial will have two complex solutions and option d is the correct choice.

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3 years ago

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Starting at the same point, Tom and Juanita go biking in opposite directions if Tom rides at a speed of 20 mph and Juanita rides

STatiana [176]

They will be 72 miles apart. :p

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3 years ago