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Gekata [30.6K]
3 years ago
7

You estimate that a jar contains 68 marbles. The actual number of marbles is 60. Find the percent error. Round your answer to th

e nearest tenth. The percent error is about %.
Mathematics
1 answer:
ANEK [815]3 years ago
5 0

Answer:

27.2

Step-by-step explanation:

Hello!! I for got how to solve this but, I think it is:

68 x 0.60 = 40.8

68 - 40.8 = 27.2

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Two birds sit at the top of two different trees. The distance between the first bird and a bird-watcher on the ground is 14.1 fe
slamgirl [31]
Use the trig ratio which gives you the most information. Here we have opposite and hypotenuse relative to angle x, so think sin( x ) = 14.1 / 27.9

Now we want to solve for x, but x is stuck inside the sine function
So how do we do this?
We can 'undo' the sine function by using the inverse sine. apply the inverse sin to both sides of the equation.
sin^-1 ( sin(x) )  =  sin^-1 ( 14.1 / 27.9)
<span>The left side 'cancels' , leaving you with x </span>
<span>x = sin^-1 ( 14.1 / 27.9)
</span><span>Now you need a calculator.
</span>Make sure you are in degree mode.
<span>Calculators can give you answer in radian or degree.
</span><span>If you get a decimal answer, you are probably in radian mode. 
</span>Round up if you want nearest hundredth
<span>30.3563 ≈ 30.36
</span>Or you can round to the nearest tenth
30.36 ≈ 30.4
Hope this helps! :)
8 0
3 years ago
2.3+0.5(3+x)= ____x + _____ need step by step answer's to both of these questions also explain what is in the blanks. 2y+3x +5y+
JulijaS [17]
2.3 + 0.5(x + 3)
2.3 + 0.5(x) + 0.5(3)
2.3 + 0.5x + 1.5
2.3 + 1.5 + 0.5x
4.8 + 0.5x

2y + 3x + 5y + 6x(4)
2y + 5y + 3x + 24x
7y + 27x
6 0
3 years ago
Read 2 more answers
Find the midpoint of diagonal AC of ABCD
Vladimir79 [104]

Answer:

M= (1, 3)

Step-by-step explanation:

we have from the picture:

A = (-3,5)

C = (5, 1)

M = Midpoint

M =((x1+x2)/2), ((y1+y2)/2)

so we have:

x1= -3     y1 = 5

x2= 5     y2= 1

M= ((-3+5)/2) , ((5+1)/2)

M = ((2/2) , (6/2))

M= (1, 3)

5 0
2 years ago
What is the value of x in the equation Three-fifths x = negative 45?
ryzh [129]

Answer:

x = -75

Step-by-step explanation:

\frac{3}{5} x=-45\\\\3x=-225\\x=-75

3 0
2 years ago
Answer the question as soon as possible
expeople1 [14]

Answer:

  • D. Distributive

Step-by-step explanation:

<u>This is:</u>

  • a(b + c) = ab + ac  - Distributive property

Correct choice is D

6 0
2 years ago
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