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4 years ago

What percent is represented by the shaded area?

Mathematics

2 answers:

worty [1.4K]4 years ago

8 0

55% this is simple math..

iren2701 [21]4 years ago

5 0

Answer:55%

Step-by-step explanation:

There are 20 in total with 11 shaded. Percentages are always out of 100,so 20x5=100 and you do the same with 11. So 11x5=55%.

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what is an equation of the line that is perpendicular to y + 1 = -3(x-5) and passes through the point (4, 6)

Korolek [52]

$\text{Let}\ k:y=m_1x+b_1\ \text{and}\ l:y=m_2x+b_2,\ \text{then}\\\\l\ \perp\ k\iff m_1m_2=-1\to m_2=-\dfrac{1}{m_1}\\\\l\ \parallel\ k\iff m_1=m_2\\\\\text{We have}\ y+1=-3(x-5)\to m_1=-3.\\\\\text{Therefore}\ m_2=-\dfrac{1}{-3}=\dfrac{1}{3}.\\\\\text{The point-slope form:}\ y-y_1=m(x-x_1).\\\\\text{Put the value of slope and the coordinates of the point (4, 6) to the equation}:\\\\\boxed{y-6=\dfrac{1}{3}(x-4)}$

8 0

3 years ago

What are the partial prouducts of 42 x 28

professor190 [17]

40x20= 80
Plus
2x8=16
Total = 96

3 0

3 years ago

Joshua uses his thermometer and finds the boiling point of ethyl alcohol to be 75.0°C. He looks i a reference book and finds tha

aniked [119]

The percent error is 6.25%

Step-by-step explanation:

Percent error is given by:

$Percent\ Error=\frac{|Experimental\ Value -\ Accepted\ value|}{Accepted\ value}*100$

Here,

Accepted value = 80.0°C

Experimental Value = 75.0°C

Putting the values in the formula

$Percent\ Error=\frac{|80.0 -75.0}{80.0}*100\\=\frac{|5.0|}{80.0}*100\\=\frac{5.0}{80.0}*100\\=0.0625*100\\=6.25\%$

Hence,

The percent error is 6.25%

Keywords: Percentage, Error

Learn more about percent error at:

#LearnwithBrainly

8 0

4 years ago

There are 6 picas in 1 in. If a line of type is 3 3/4in long. What is this picas in length?

scoray [572]

Answer:

3 3/4 in length is equal to 22.5 picas

Step-by-step explanation:

If there are 6 picas in 1 in, then in 3 3/4 in, we will first take this to decimal form, which is

3.75 in

Therefor 3.75 in = 6 picas × 3.75 = 22.5 pisca

3 0

4 years ago

Solve the system of linear equations by substitution 2x-y=6 x=y-1

Oksana_A [137]

substitute x for y-1
2(y-1)-y=6 distribute
2y-2-y=6 subtract y in 2y
y-2=6 add 2 to get y by itself
y=8

Put y back into equation x=y-1
x=8-1
X=7

6 0

3 years ago