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masha68 [24]
3 years ago
13

The formula for the area of a triangle is . What is the length of the base, b, of a triangle with an area, A, of 110 m2 and a he

ight, h, of 10 m?
1100 m

22 m

2200 m

11 m
Mathematics
1 answer:
vodka [1.7K]3 years ago
7 0

Answer:

b = 22 m

Step-by-step explanation:

The formula for calculating the area (A) of a triangle is

A = \frac{1}{2} bh

multiply both sides by 2 to eliminate the fraction

2A = bh ( divide both sides by h )

b = \frac{2A}{h}, hence

b = \frac{2(110)}{10} = \frac{220}{10} = 22 m


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Genrish500 [490]
A)

A=20(1.25^t)

C=25+10t

b)

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c)

20(1.25^t)=25+10t

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4 0
3 years ago
Write a polynomial function of minimum degree with real coefficients whose zeros include those listed. Write the polynomial in s
wolverine [178]

Answer:

x^4 - 14x^2 - 40x - 75.

Step-by-step explanation:

As complex roots exist in conjugate pairs the other zero is -1 - 2i.

So in factor form we have the polynomial function:

(x - 5)(x + 3)(x - (-1 + 2i))(x - (-1 - 2i)

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The first 2 factors  = x^2 - 2x - 15 and

( x + 1 - 2i)(x +1 + 2i) = x^2 + x + 2ix + x + 1 + 2i - 2ix - 2i - 4 i^2

=  x^2 + 2x + 1 + 4

= x^2 + 2x + 5.

So in standard form we have:

(x^2 - 2x - 15 )(x^2 + 2x + 5)

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7 0
4 years ago
Help quick. Need fast. Thx
Vlada [557]
2/9×5=10/45
3/5×9=27/45
so 3/5 is bigger then 2/9

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6 0
3 years ago
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Olin [163]

Answer:

The answer is

<h2>( 4 , - 1)</h2>

Step-by-step explanation:

The midpoint M of two endpoints of a line segment can be found by using the formula

M = (  \frac{x1 + x2}{2} , \:  \frac{y1 + y2}{2} )

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

(2,-4) and (6,2)

The midpoint is

M = ( \frac{2 + 6}{ 2}  , \:  \frac{ - 4 + 2}{2} ) \\  = ( \frac{8}{2}  \: , \:  -  \frac{2}{2} )

We have the final answer as

<h3>( 4 , - 1)</h3>

Hope this helps you

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