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Lady bird [3.3K]
3 years ago
6

Your estimate that the length of a board is 24 feet. The actual length of the board is 22 feet. Find the percent error.

Mathematics
1 answer:
Tresset [83]3 years ago
5 0

Answer:

9.09%

Step-by-step explanation:

You over estimated by 2 feet.  Find out how much 2 feet of 22 is by dividing 2 by 22...

2/22 = 0.090909090909

To convert a decimal to a percent, multiply the decimal by 100%

0.0909090909(100%) = 9.0909090909% or 9.09%

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What is the effect on the graph of the function f(x) = x^2 when f(x) is changed to f(x − 6)
olya-2409 [2.1K]

Answer:

The comparison graph is also attached in 3rd figure. In the 3rd figure, the graph with vertex (0, 0) is representing f(x) = x^2 and \:f\left(x\right)=\left(x-6\right)^2 is represented as being shifted 6 units to the right as compare to the function f(x) = x^2.

Step-by-step explanation:

When we Add or subtract a positive constant, let say c, to input x, it would be a horizontal shift.  

For example:

Type of change               Effect on y = f(x)

y = f(x - c)                      horizontal shift: c units to right

So

Considering the function

f(x) = x^2

The graph is shown below. The first figure is representing f(x) = x^2.

Now, considering the function

\:f\left(x\right)=\left(x-6\right)^2

According to the rule, as we have discussed above, as a positive constant 6 is added to the input, so there is a horizontal shift, 6 units to the right.

The graph of \:f\left(x-6\right)=\left(x-6\right)^2 is shown below in second figure. It is clear that the graph of  \:f\left(x-6\right)=\left(x-6\right)^2  is shifted 6 units to the right as compare to the function f(x) = x^2.

The comparison graph is also attached in 3rd figure. In the 3rd figure, the graph with vertex (0, 0) is representing f(x) = x^2 and \:f\left(x\right)=\left(x-6\right)^2 is represented as being shifted 6 units to the right as compare to the function f(x) = x^2.

5 0
3 years ago
ASAP! Due tomorrow! 25 points! Read the word problem. Write an equation to represent the word problem. Solve the equation. Durin
Marrrta [24]
What you gotta take from this problem:

What Joe got during break = 2t+2

What his sister gave him = 3t

What he has total = 10 tadpoles.


Now to assemble this equation:

2t+2+3t=10

Now combine like terms to get 5t+2=10

Subtract 2 on each side of the equation to get 5t=8

Now you would divide 5 on each side and get t=1.6 , however since you can't have a .6 of a tadpole, you would have to round it up to 2.
7 0
3 years ago
Container is shaped like a triangular prism. 3 cm 5 cm
Marianna [84]

ANSWER

A=222\operatorname{cm}

EXPLANATION

A) From the diagram, we see that the base of the triangular face is 4 cm long and the height of the triangular face is 3 cm.

B) From the diagram, we see that the length of two of the rectangular face is 15 cm and the width of the rectangular face is 5 cm.

The third rectangular face has a length of 15 cm and a width of 4 cm.

C) The surface area of the prism is the sum of the areas of the faces of the prism.

The area of a triangle is given as:

A=\frac{1}{2}\cdot b\cdot h

where b = base, h = height

The area of a rectangle is given as:

A=l\cdot w

where l = length, w = width

Therefore, the surface area of the prism is:

\begin{gathered} A=2(\frac{1}{2}\cdot4\cdot3)+2(15\cdot5)+(15\cdot4) \\ A=12+150+60 \\ A=222\operatorname{cm}^2 \end{gathered}

4 0
1 year ago
I am thinking of a number that is greater than 142 rounded to the nearest 100 but has a 5 in the ones place! What’s my number!?
Darina [25.2K]
I think your number would be 542
6 0
3 years ago
Find the area of the shaded sector of a circle. Leave ur answer in terms of pi
laila [671]

The area of the shaded sector of a circle is 64 pie cm^2

Here we are given that there is a circle: whose radius is 16cm and the angle formed by two radius that is angle of the sector is 90.

The area of the sector of circle is basically the area of the arc of a circle.

The two combination of two radii forms the sector of a circle while the arc is in between these two radii.

Area of sector is given by:

Area of sector=\frac{mXY}{360^{0} }.лr^{2}

Substituting the given value in the formula of area of sector:

Area of sector is=\frac{90}{360}\times pie\times r^{2}

We get after solving,

Area of sector= 64 pie cm^2

So from the given options, option 4 is correct.

Hence the area of the sector is 64 pie cm^2

To know more about Area of the sector:

brainly.com/question/22972014

#SPJ9

6 0
1 year ago
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