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Len [333]
4 years ago
6

Or does anyone know how to solve this one ?

Mathematics
1 answer:
vivado [14]4 years ago
3 0
The small & large triangle are similar the we can write the following proportion/ratio:

8/(8+x) = 12/(12+18) ==> 12(8+x) =8(12+18) ==> 96+12x=240

12x =240-96 ==> 12x = 144 and x=12
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Determine the geometric mean of 16, 27,54, and 72.
babymother [125]

Answer:

36

Step-by-step explanation:

\sqrt[4]{16 \times 27 \times 54 \times 72 \:  \: }  \:  = 36

6 0
3 years ago
In the figure, j | k and mZ2 = 117°<br> What is the mZ3?
DIA [1.3K]

Answer:

if angle 2 is 117 degrees, angle 3 is supplemental and would be 63 degrees.

180-117=63

4 0
3 years ago
1 1/2 miles equals how many feet​
n200080 [17]

Answer:

1 1/2 miles equal 7920 feet

Step-by-step explanation:

N/A

6 0
4 years ago
Read 2 more answers
a plane travels a distance of 6,000km in a time of 6.2 hours. What is its average speed rounded to the nearest whole number?​
olga2289 [7]

Answer:

968 km/h

Step-by-step explanation:

We'll use the formula \text{speed}=\frac{\text{distance}}{\text{time}}

Thus

\text{speed}=\frac{6000}{6.2}\\=967.74...\\\approx968(km/h) (to nearest whole number)

4 0
3 years ago
How do i write a direct variation given that y varies directly with x<br>x: 15 y: -5
sp2606 [1]
When we say that y varies <em>directly </em>with x, we mean that whatever value x is scaled up by, y will be scaled up by, too. The simplest kind of direct variation is one where y = x for all values of x. If you multiply x by some value, y must be multiplied by that same value.

More generally, though, you'll have something of the form y = kx, where the variable k here is referred to as the <em /><em>constant of proportionality.</em> Another way you can think of k is as the <em>ratio of y to x</em>.

In this problem, you're given a set of values for x and y, and you'll need to use those to find the constant of proportionality before you set up an equation relating x to y. Substituting our general equation y = kx for the given values, we have:

-5 = k(15)

To get k, simply divide both sides by 15 to obtain:

k = -5/15 = -1/3

So, our general equation, for <em>any x</em>, would be y = (-1/3)x
4 0
3 years ago
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