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Zanzabum
3 years ago
7

.Shaun estimated that the attendance at a college

Mathematics
1 answer:
Serggg [28]3 years ago
8 0

Answer:

38.72%

Step-by-step explanation:

Estimated attendance = 1,000

The actual value of attendance = 1,632

We need to find the percent error of Shaun's estimate. Using the formula as follows :

\%=\dfrac{|\text{actual value-estimated value}|}{\text{actual value}}\times 100

Put all the values,

\%=\dfrac{1632-1000}{1632}\times 100\\\\=38.72\%

So, the percent error of Shaun's estimate is 38.72%.

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For what value of x is sin x = cos 19º, where 0°< x < 90°?
KonstantinChe [14]

Answer:

  71°

Step-by-step explanation:

The cosine of an angle is equal to the sine of its complement:

  cos(19°) = sin(90° -19°) = sin(71°)

Comparing to the given expression, we see that x = 71°.

7 0
3 years ago
the area of the base of a pyramid is 18 square yards. the height of the pyramid is 5 yards what is the volume of the pyramid
nikitadnepr [17]
V=areax height
v=18x5
v=90
3 0
3 years ago
5. CD has an endpoint at (2, -1) and a midpoint at (8,3). Which measure is closest to the length of CD?
Alexus [3.1K]

Answer: C

Step-by-step explanation:

the equation for X is

\frac{2+x}{2} =\frac{8}{1}  use proportion to solve

2 + x = 16

x = 14

(14,y)

The equation for Y is

\frac{-1+y}{2} =\frac{3}{1} use proportion to solve

-1 + y = 6

y = 7

(14,7)

now use the distance formula

(14,7) (2,-1)

which gets you 14.4 or C

8 0
2 years ago
(08.01) The graph shows two lines, Q and S. A coordinate plane is shown with two lines graphed. Line Q has a slope of one half a
ki77a [65]

Answer:

There are no solutions for the pair of equations.

The lines are parallel to each other

Step-by-step explanation:

Line Q has a slope of 1/2 and crosses the y axis at 3.

This mean at x=0, y=3

Using the equation of a straight line expression to find the slope

y=mx +c  where m is slope and c in the y intercept you can write the equation for Line Q as;

y=mx+c\\\\y=\frac{1}{2} x+c\\\\3=\frac{1}{2} *0+c\\\\3=c\\\\y=\frac{1}{2} x+3

For the Line S , slope is 1/2  and the line crosses the y axis at -2 , which represents the c in the equation y=mx +c

The equation for S will be

y=\frac{1}{2} x-2

Using the graphing tool to plot the two equations for line  Q and line S we notice that the lines are parallel .For solutions, they have to intersect.

8 0
3 years ago
Read 2 more answers
Find the value of each expression<br><br> 3[ (20 - 4) / 2]<br><br> 5(9) / (8 / 4)
storchak [24]
3 [ (20-4) / 2 ]= 3 * 16/2=  3 x 8 =24

5,(9)=5 9/9= 54/9=6

6/8/4= 6/2=3
4 0
3 years ago
Read 2 more answers
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