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Olegator [25]
3 years ago
11

Every year,students at Memorial High school volunteer to clean local highway roadsides. Each club or team at the school is

Mathematics
2 answers:
arlik [135]3 years ago
8 0
She has to clean 2.5
snow_lady [41]3 years ago
8 0
U have to do 1.5 - 0.25. The answer is 1.25
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Suppose f(x) = x square -8x +20 find x such that f(x) =24
ch4aika [34]
X=4+-2sqaurw root of 5
6 0
3 years ago
If 40% of a number is 112 and 95% of the same number is 266, find 55% of that number.
damaskus [11]

Answer:

154

Step-by-step explanation:

.4 x 112 = 280

.95 x 266 = 280

.55 x 280 = 154

5 0
3 years ago
PLEASEEEE
Jobisdone [24]
<h3>Answer:  9.4 feet</h3>

Work Shown:

sin(angle) = opposite/hypotenuse

sin(22) = x/25

x = 25*sin(22)

x = 9.3651648353978

x = 9.4

Your calculator needs to be in degree mode. One way to check is to compute sin(30) and you should get 0.5 or 1/2.

3 0
2 years ago
Find the volume of the square pyramid showing. round to the nearest 10th if necessary
solong [7]
The volume of a square pyramid is (1/3)(area of base)(height of pyramid).

Here the area of the base is (10 ft)^2 = 100 ft^2.

13 ft is the height of one of the triangular sides, but not the height of the pyramid.  To find the latter, draw another triangle whose upper vertex is connected to the middle of one of the four equal sides of the base by a diagonal of length 13 ft.  That "middle" is 5 units straight down from the upper vertex.  Thus, you have a triangle with known hypotenuse (13 ft) and known opposite side 5 feet (half of 10 ft).  What is the height of the pyramid?  
To find this, use the Pyth. Thm.:  (5 ft)^2 + y^2 = (13 ft)^2.  y = 12 ft.

Then the vol. of the pyramid is (1/3)(area of base)(height of pyramid) =
(1/3)(100 ft^2)(12 ft) = 400 ft^3 (answer)
5 0
3 years ago
Which equation represents the graph of y= cosx reflected across the x-axis then shifted vertically down by 2 units?
Phoenix [80]

Answer:

  y = -cos(x) -2

Step-by-step explanation:

Multiplying the function value by -1 reflects it across the x-axis. Adding -2 to the function value shifts it down by two units.

reflected: y = -cos(x)

then shifted: y = -cos(x) -2

6 0
3 years ago
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