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butalik [34]
3 years ago
15

Find the value of x

Mathematics
1 answer:
Cerrena [4.2K]3 years ago
7 0

Answer:

We know that the area of a triangle is:

1/2 * base * height

We are given:

base = x + 6

height = x

area = 108 m^2

Applying the formula:

Area  = 1/2 * base * height

<em>108 = 1/2 * x * (x + 6)</em>

<em>x² + 6x = 216</em>

<em>x² + 6x - 216 = 0</em>

<em>x² + 18x - 12x -216 = 0   (Splitting the middle term)</em>

<em>x(x + 18) - 12(x + 18) = 0</em>

<em>(x + 18) (x - 12) = 0</em>

Hence, we have 2 possible values for x:   -18 or 12

Since taking x as -18 will result in the length of sides of this triangle to be negative, -18 is NOT the value of x

Therefore, x = 12

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Answer:

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Step-by-step explanation:

The volume of pyramid is given by the following formula:

V=\frac{1}{3}bh  (1)

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by replacing in (1) you obtain:

V=\frac{1}{3}(32mm)^2(30mm)=10,240\ mm^3

hence, the volume is 10240mm^3

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3 years ago
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san4es73 [151]

Answer:

a.Z(-2,1)

b.Z(1,1)

c.Z(-3,2)

Step-by-step explanation:

z(-2,3)

Imagine this point on a graph.

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Z(-2,1)

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Z(-2,1)

The y doesn't change this time the x increases 3 since we're moving to the right.

Z(1,1)

Translate up 1 and left 4:

Z(1,1)

by moving up one we have Z(1,2) then by moving 4 to the left we get Z(-3,2)

Hope this helps :)

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