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Helga [31]
3 years ago
7

James bought 6 baseball cards at a garage sale for $0.45 each. He sold them to a collector for $1.25 each. What was his profit?

Mathematics
1 answer:
nata0808 [166]3 years ago
3 0

Answer:

$4.80.

Step-by-step explanation:

hope this helps

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The figure shown models a roof truss. Based on the markings, is there enough information to prove that ΔACD ≅ ΔBCD?
Daniel [21]

Answer:

C

Step-by-step explanation:

Yes, ACD = BCD by AAS since they have 2 congruent angles & share a side.

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2 years ago
Help is for my daughter
marysya [2.9K]

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c.

Step-by-step explanation:

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3 years ago
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There were 15 students on the school bus before Brad's stop. Twelve students, including Brad, got on the bus at his stop. The bu
valina [46]

Answer:

24 students got off at the middle school.

Step-by-step explanation:

15 students

+

12 students

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6 students

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3 students

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24 students (remaining students).

8 0
3 years ago
Factor f(x) = 15x^3 - 15x^2 - 90x completely and determine the exact value(s) of the zero(s) and enter them as a comma separated
Illusion [34]

Answer:

x=-2,0,3

Step-by-step explanation:

We have been given a function f(x)=15x^3-15x^2-90x. We are asked to find the zeros of our given function.

To find the zeros of our given function, we will equate our given function by 0 as shown below:

15x^3-15x^2-90x=0

Now, we will factor our equation. We can see that all terms of our equation a common factor that is 15x.

Upon factoring out 15x, we will get:

15x(x^2-x-6)=0

Now, we will split the middle term of our equation into parts, whose sum is -1 and whose product is -6. We know such two numbers are -3\text{ and }2.

15x(x^2-3x+2x-6)=0

15x((x^2-3x)+(2x-6))=0

15x(x(x-3)+2(x-3))=0

15x(x-3)(x+2)=0

Now, we will use zero product property to find the zeros of our given function.

15x=0\text{ (or) }(x-3)=0\text{ (or) }(x+2)=0

15x=0\text{ (or) }x-3=0\text{ (or) }x+2=0

\frac{15x}{15}=\frac{0}{15}\text{ (or) }x-3=0\text{ (or) }x+2=0

x=0\text{ (or) }x=3\text{ (or) }x=-2

Therefore, the zeros of our given function are x=-2,0,3.

7 0
3 years ago
Find the length of the missing side.
White raven [17]

Answer:

14.4 inches

Step-by-step explanation:

Use the Pythagorean theorem: a^{2} + b^{2}

So, this will be: 8^{2} + 12^{2} = c^{2}

By simplifying we get:

c = \sqrt{208}

The missing side is: 14.4 (rounded to the tenth)

3 0
2 years ago
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