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Leni [432]
3 years ago
9

6. A wire Il om long has a mass of 187 g. What is the mass of 7 cm of this wire?

Mathematics
1 answer:
son4ous [18]3 years ago
5 0

Answer:

119 g.

Step-by-step explanation:

11 cm has a mass of 187 g

So 1 cm has a mass of 187/11 g

7 cm ...............................  (187/11) * 7

= 17 * 7

=  119 g.

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The answer is no. because is you substitute the value 3 in for x into the equation and solve you get,

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4 0
3 years ago
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Rename the number 780000 = 78
AfilCa [17]
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3 0
3 years ago
Graph f(x) =-2x^+16x-30 by factoring to find the solutions, then find the coordinates of the vertex, and the axis of symmetry. I
inn [45]

Answer:

See explanation

Step-by-step explanation:

1. Factor the function f(x)=-2x^2+16x-30:

f(x)=-2x^2+16x-30=-2x^2+6x+10x-30=-2x(x-3)+10(x-3)=-2(x-3)(x-5).

2. The zeros (or the solutions of the equation f(x)=0) are x=3 and x=5. So? points (3,0) and (5,0) are the points on the graph that are the solutions of the equation.

3. Find the vertex:

x_v=-\dfrac{b}{2a}=-\dfrac{16}{2\cdot (-2)}=4,\\ \\y_v=-2\cdot 4^2+16\cdot 4-30=-32+64-30=2.

Thus, the coordinates of the vertex are (4,2) and the axis of symmetry is the vertical line that passes trough the vertex: x=4.

3 0
3 years ago
For the bake sale, connie baked 144 cookies. Esther bakes 49 more cookies than Connie.
den301095 [7]

Answer:

it is 198 i beleive

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7 0
3 years ago
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mariarad [96]
(y2-y1)÷(x2-x1) so 11.5-2.5 divided by -2.6+5.6 and the answer is 3
4 0
3 years ago
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