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3 years ago

Can somebody help me plz with this math problem!!

Mathematics

2 answers:

pantera1 [17]3 years ago

7 0

Answer:

thxxxxxxxxxx for the points

Step-by-step explanation:

Tema [17]3 years ago

6 0

Answer:

Step-by-step explanation:

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What number can be written as 40 plus 5 ?

Sergio [31]

40+5=45 is written in extended form so your answer is 45

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3 years ago

A line passes through the points (–1, –5) and (4, 5). The point (a, 1) is also on the line.

IgorC [24]

Answer:

a = 2

Step-by-step explanation:

Let's find the equation of the line using the 2 points given.

Let's call -1 as x_1 and -5 as y_1

also, 4 as x_2 and 5 as y_2

The equation of line is :

$y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)$

Let's plug the points and get the equation of the line:

$y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)\\y+5=\frac{5+5}{4+1}(x+1)\\y+5=2(x+1)\\y+5=2x+2\\y=2x-3$

Now, to find a, we substitute a in x and 1 in y of the equation of the line we just got:

$y=2x-3\\1=2(a)-3\\1=2a-3\\2a=4\\a=\frac{4}{2}=2$

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3 years ago

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HELP MATH WHIZZES!! TON OF FREE POINTS, EASY GEOMETRY QUESTION FOR THE RIGHT ANSWER! WHO WILL WIN THIS?! NEED HELP, NOT WRONG AN

Radda [10]

The area of the trapezoid is the product of the height and the average of the two bases:
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But we want to exclude the area of the fountain. 
Since it's circular its area is π times the square of its radius, or 16π square yd. 

So the area of the park, excluding the fountain, is 
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Ksenya-84 [330]

Answer

$12b^{2} \sqrt[3]{2a}$

Step-by-step explanation:

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