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ladessa [460]
3 years ago
13

Plz show work, this is a test. NO LINKS!!!

Mathematics
1 answer:
garri49 [273]3 years ago
8 0

Answer:

surface area of the square pyramid

=(32×32)+(2×32×20)

=1024+1280

=2304 square feet

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Write the name of the period that has the digits 486
Airida [17]


it is called ones period system .this is based on international system of numeration.


7 0
3 years ago
Find the average value of f(x)=e2x over the interval [2, 4].
shusha [124]
<h2>Option B is the correct answer.</h2>

Step-by-step explanation:

We need to find average value of e^{2x} in [2,4]

Area of e^{2x} in [2,4] is given by

                  \int_{2}^{4}e^{2x}dx=\frac{1}{2}\times \left [ e^{2x}\right ]^4_2\\\\\int_{2}^{4}e^{2x}dx=\frac{1}{2}\times(e^8-e^4)=1463.18

Area of e^{2x} in [2,4] = 1463.18

Difference = 4 - 2 = 2

Average value = Area of e^{2x} in [2,4] ÷ Difference

Average value = 1463.18 ÷ 2

Average value = 731.59

Option B is the correct answer.

5 0
3 years ago
Perform the indicated operation. (-7) • (-5)<br> -12 <br> 35<br> 12<br> -35
Flauer [41]
Hi,


Equation:

- 7 \times  (- 5)

Multiplying two negatives equals a positive.

( - ) \times ( - ) = ( + )

Now equation looks like:

7 \times 5 = 35

Hope this helps.
r3t40
6 0
3 years ago
Read 2 more answers
Select all ratios that are equivalent to 4/8.
Elena-2011 [213]

Answer:

6/12

10/20

5/10

1/2

Step-by-step explanation:

=)

4 0
2 years ago
Read 2 more answers
How to write an equation for the line perpendiculer and trhough the given ppoint?
valentinak56 [21]
A method that always works is to find the slope of the given line, then find the negative reciprocal of that. Your result will be the slope of the perpendicular line. Using this slope and the given point, fill in the parameters of the point-slope form of the equation of a line.

For m = slope of given line and (h, k) = given point, the perpendicular line will be
  y = (-1/m)(x -h) +k

Often, this equation can be simplified to another appropriate form, such as slope-intercept form (y = mx+b) or standard form (ax+by=c).

_____
The slope of a given line can be found by solving its equation for y. The slope is the coefficient of x in that solution. If the given line is characterized by two points, (x1, y1) and (x2, y2), then its slope is m = (y2-y1)/(x2-x1).

In the unusual case where the given line is vertical (x=<some constant>), the slope of the perpendicular line is zero, and the line you want becomes y=k.
5 0
3 years ago
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