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Ksenya-84 [330]
3 years ago
6

What does n equal to in 12n + 9 = 6 - 3n

Mathematics
1 answer:
sveticcg [70]3 years ago
6 0
12n+9=6-3n\ \ \ \ \ \ |Add\ 3n\ to\ each\ side\\\\
15n+9=6\ \ \ \ \ |Subtract\ 9\\\\
15n=-3\ \ \ \ \ |Divide\ by\ -15\\\\
n=-\frac{3}{15}=\boxed{-\frac{1}{5}}
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If A (-7,0), B(0,0), C(0,7), what type of angle is
devlian [24]

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denpristay [2]

Answer:

Yes, they are congruent

Step-by-step explanation:

Two figures are congruent if they have the same side lengths and the same angles, all in the same order. (I mean "same order" by you couldn't have a rectangle and a kite with different orders of the sides being congruent). Now, if we use this, we can compare the sides and angles to find out that they are indeed congruent.

6 0
3 years ago
Select the quadratic function with a graph that has the following features. x-intercept at (8,0) y-intercept at (0,-32) maximum
Basile [38]

Answer:

The correct option is C.

Step-by-step explanation:

The function has axis of symmetry at x=6, it represents that the parabola is along the x-axis and the standard form of parabola is

y=a(x-h)^2+k

Where, a is scale factor and (h,k) is vertex.

The maximum or minimum value of a quadratic function is the vertex of parabola. So, vertex of parabola is (6,4).

y=a(x-6)^2+4

The y-intercept of the function is (0,-32)

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Therefore required equation of parabola is

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4 0
3 years ago
The plans for a shed call for a rectangular floor with a perimeter of 204 ft. The length is two times the width. Find the length
Harlamova29_29 [7]
A-length
b-width
perimeter of rectangular floor: 2a+2b=204
<span>The length is two times the width: a=2b
</span>2a + 2b = 204
2*2b + 2b = 204
6b = 204|:6
b = 34
a=2b=2*34=68

a=68->length
b=34->width
8 0
3 years ago
Read 2 more answers
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