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vekshin1
3 years ago
8

{9+5x}{2x} =-20" align="absmiddle" class="latex-formula">

Find x

Mathematics
1 answer:
Ludmilka [50]3 years ago
3 0
This is an math/way answer, and I don't have an explanation to the problem, but I hope this is good enough.

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Please help... AP is arithmetic progression
7nadin3 [17]

Answer:

The least value of n is 17.

Step-by-step explanation:

First term (a) = 46

Second term (a + d) = 43

Third term (a + 2d) = 40

Common difference (d) = second term - first term = 43 - 46 = -3

Tn (nth term) = a + (n - 1)d

a = 46, d = -3

Tn = 46 + (n - 1)-3 = 46 + (-3n + 3) = 46 - 3n + 3 = 49 - 3n

For Tn to be negative, the product of 3 and n must be greater than 49.

Therefore, the least value of n is 17

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4 years ago
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Two points are located at (−9,−8) and (−6,−4).
Mrac [35]

Answer:

l(AB)=5\ units

is the distance between the point A and point B.

Step-by-step explanation:

Let

A ≡ (x₁, y₁) ≡ (-9 , -8 )

B ≡ (x₂, y₂) ≡ (-6 , -4 )

Now by Pythagoras  Distance formula we have

a² + b² = c²

l(AB) = \sqrt{((x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2} )}\\\\l(AB) = \sqrt{((-6--9)^{2}+(-4--8)^{2} )}\\\\l(AB)=\sqrt{(3)^{2}+(4)^{2}  }\\\\l(AB) =\sqrt{25} \\\\l(AB) = 5\ units

4 0
3 years ago
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26 pts who solve
blagie [28]
The "mean" is just the normal arithmetic average that you are most likely already familiar with.

mean=(sum of elements)/(number of elements)

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mean=(2+28+2+20+22)/5

mean=74/5

mean=14.8

So the mean or average age of the trees is 14.8 years.
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Answer:

120 ft squared

Step-by-step explanation:

First you find the areas of all the triangle surfaces and add them up

1/2 * b * h = 21

21 *4 = 84

Find the area of the square base and add the 2 values up

6^2 = 36

36+84 = 120

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Solve log base(x − 1) 16 = 4.
vredina [299]
I hope this helps you


x=3

8 0
4 years ago
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