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Musya8 [376]
3 years ago
9

34,515 is divisible by a. 3 b. 9 c. 5 Explain your reasoning for your choice(s).

Mathematics
1 answer:
Lemur [1.5K]3 years ago
5 0

Answer:

a b and c

Step-by-step explanation:

a) a number is divisible by 3 if the sum of its dígits is divisible by 3:

3+4+5+1+5=18

<em>18 is divisible by 3 (6*3=18), then 34515 is divisible by 3 too.</em>

b)a number is divisible by 9 if the sum of its dígits is divisible by 9:

3+4+5+1+5=18

<em>18 is divisible by 9 (9*2=18), then 34515 is divisible by 9 too.</em>

c) a number is divisible by 5 if its last digit is 5 or 0

then, <em>34515 is divisible by 5</em>

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7. Which coordinate lies in the solution set for
Nana76 [90]

Answer:

The only point (0,0) lies inside the shaded region and hence it gives a solution for the set of inequalities.

Step-by-step explanation:

See the graph attached to this question.

The solution of the set of inequalities is given by the shaded region on the graph.

Now, the point (0,5) is outside this shaded region, hence it can not be the solution.

The point (3,0) also is outside this shaded region, hence it can not be the solution.

The point (-3,0) also is outside this shaded region, hence it can not be the solution.

Now, the only point (0,0) lies inside the shaded region and hence it gives a solution for the set of inequalities. (Answer)

6 0
2 years ago
Write the equation that represents the relationship between n the number of triangles and p the perimeter of the figures formed.
Klio2033 [76]
1 triangle: 2*6 + 1*5

2 triangles: 2*6 + 2*5

3 triangles: 2*6 + 3*5

So for n triangles: p = 2*6 + n*5 = 12 + 5n
4 0
3 years ago
Read 2 more answers
The equation for a parabola has the form y = ax2 + bx + c, where a, b, and c are constants and a ≠ 0. find an equation for the p
sattari [20]
To solve the problem, substitute the given points for x in the given equation to get

-10=(-1)^2a+(-1)b+c\Rightarrow-10=a-b+c \\ -6=(1)^2a+(1)b+c\Rightarrow-6=a+b+c \\ -13=(2)^2a+(2)b+c\Rightarrow-13=4a+2b+c

Solving the three equations simultaneously, we have:

a = -3, b = 2 and c = -5

Therefore, the required equation is

y=-3x^2+2x-5
7 0
2 years ago
Which of the following ordered pairs a solution to the equation?
dmitriy555 [2]
(-3,7)

5(-3)+2(7)=-1

-15+14=-1
4 0
3 years ago
In<br> given points.<br> 1. (10,4), (4, 15)<br> Find the slope of the line.
MrMuchimi

Answer:

m = -\frac{11}{6}

Step-by-step explanation:

Slope is rise over run.

\frac{15-4}{4- 10}=\frac{11}{-6} = \boxed{-\frac{11}{6}}

Hope this helps.

8 0
2 years ago
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