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3 years ago

How do you do 18?? I did a and b, but I don't think I did them right, and I have no idea how to do c.

Mathematics

1 answer:

natulia [17]3 years ago

3 0

Rememer that the perimiter is the distance around
it is
P=L+L+W+W or
P=2L+2W or
P=2(L+W)

so

a.
tenis
L=2x+6
W=x
P=2(2x+6+x)=2(3x+6)=6x+12

basketball
L=3x-14
W=1/2x+32
P=2(3x-14+1/2x+32)=2(3.5x+18)=7x+36

b.
how much bigger is basketball than tennis
7x+36=bigger+6x+12
minus 6x+12 both sides
x+24=bigger
it is x+24 bigger

c.
x=36
Ptenis=6x+12=6(36)+12=216+12=228ft
Pbasketball=7x+36=7(36)+36=252+36=288ft

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<h3>✽ - - - - - - - - - - - - - - - ~<u>Hello There</u>!~ - - - - - - - - - - - - - - - ✽</h3>

➷ Divide total cost by the number of files:

82.50/30 = 2.75

Multiply by 10:

2.75 x 10 = 25.5

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2 years ago

The loudness, L, measured in decibels (Db), of a sound intensity, I, measured in watts per square meter, is defined as mc024-1.j

Alex Ar [27]

We have the given I = 10^-1 and I₀ = 10^-12.

Simply plugging in the values to the equation, we have:
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(I used a scientific calculator in solving for L).

8 0

3 years ago

Read 2 more answers

When the outliers are removed, how does the mean change? dot plot with 1 on 50, 1 on 76, 1 on 78, 2 on 79, 1 on 80, 1 on 81, 2 o

sveticcg [70]

We can plot this data on MS Excel and determine the distribution of these data reflected on the graph. Among these numbers, 50 is the outlier since it is very far from the other numbers ranging from 76 to 83. We can perform interquartile range to determine or verify the outliers in the data set. In this respect, we can see that there is not much distribution seen. The average of all data sets is equal to 96.25. When the outlier (50) is removed, we expect the mean to become higher since a low number was ommitted including high numbers only. Outliers are obtained from special causations such as human errors.

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2 years ago

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user100 [1]

Answer:

Fraction of fire trucks = $\frac{1}{4}$

Total number of toy cars = $16$

Step-by-step explanation:

Fraction of sports car = $\frac{2}{3}$

Fraction of remaining cars $=1-\frac{2}{3}=\frac{3-2}{3} =\frac{1}{3}$

So,

Fraction of pick up cars = $\frac{1}{4}(\frac{1}{3})=\frac{1}{12}$

Therefore,

Fraction of fire trucks = $\frac{1}{3}-\frac{1}{12}=\frac{4-1}{12}=\frac{3}{12}=\frac{1}{4}$

That is Number of fire trucks = $\frac{1}{4}$ ( Total number of toy cars )

Number of fire trucks = 4

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2 years ago

What value of n makes the equation true? (2x^9y^n)(4x^2y^10)=8x^11y^20

Komok [63]

Hi there! The answer is n = 10.

$(2 {x}^{9} {y}^{n} )(4 {x}^{2} {y}^{10} ) = 8 {x}^{11} {y}^{20}$

As you see at the powers of x, we need to add the exponents of the power we when multiply them.
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The powers of y work the same way.
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Hence, n = 10, since
${y}^{10 + 10} = {y}^{20}$

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3 years ago