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Nutka1998 [239]
3 years ago
5

The box plots represent the ages of pennies in two 50-cent rolls. By looking at the plots, Beth says that the two means are abou

t 5 years apart. Which is true about Beth’s statement?

Mathematics
2 answers:
Neporo4naja [7]3 years ago
6 0

Answer:

D)She may not be correct because means cannot be determined from Box plots.

Step-by-step explanation:

Box plot -Boxplot is a way to show the spread and centers of a data setboxplot and also called a box and whisker plot,

Box plot tells us about :

1) Mininmum value

2) 25th Percentile value

3)Median

4) 75th Percentile value

5)Maximum value

6) Interquartile Range

Now we are given that By looking at the plots, Beth says that the two means are about 5 years apart.

So,Option D is true

She may not be correct because means cannot be determined from Box plots.

alexdok [17]3 years ago
5 0

Answer:

She may not be correct because means cannot be determined from the box plots

Step-by-step explanation:

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oyce is trying to solve the equation y = x2 − 8x + 7 using the quadratic formula. She has made an error in one of the steps belo
Naddik [55]

You didn't attach anything, but this is how you should solve this equation: given an equation ax^2+bx+c=0 the solutions are

x_{1,2} = \dfrac{-b\pm\sqrt{b^2-4ac}}{2a}

In your case, the values are a=1,\ b=-8,\ c=7. If you plug these values inside the solving formula, you have

x_{1,2} = \dfrac{8\pm\sqrt{64-4\cdot 1\cdot 7}}{2\cdot 1} = \dfrac{8\pm\sqrt{64-28}}{2} = \dfrac{8\pm\sqrt{36}}{2} = \dfrac{8\pm6}{2} = 4\pm3

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3 years ago
Triangle GHI, with vertices G(-8,-8), H(-6,-7), and I(-9,-2),
Anna35 [415]

Answer:

area = 6.5 square units

Step-by-step explanation:

Use the <em>area of a triangle in coordinate geometry</em> formula:

\triangle GHI =\frac{1}{2} |x_1(y_2- y_3) + x_2(y_3 -y_1) + x_3(y_1 -y_2)|

where (x_1,y_1)=(-8,-8) \ \ \ \ (x_2,y_2)=(-6,-7) \ \ \ \ (x_3,y_3)=(-9,-2)

      \triangle GHI =\frac{1}{2} |x_1(y_2- y_3) + x_2(y_3 -y_1) + x_3(y_1 -y_2)|

\implies \triangle GHI =\frac{1}{2} |-8(-7+2)  -6(-2 +8)  -9(-8 +7)|

\implies \triangle GHI =\frac{1}{2} |40  -36 +9|

\implies \triangle GHI =6.5

3 0
2 years ago
Jayden and Sheridan both tried to find the missing side of the right triangle. A right triangle is shown. One leg is labeled as
agasfer [191]

Answer:

WOW that's tough to read all squished together!!!

Jayden and Sheridan both tried to find the missing side of the right triangle. A right triangle is shown. One leg is labeled as 7 centimeters. The hypotenuse is labeled as 13 centimeters.

Jayden's Work

Sheridan's Work

a2 + b2 = c2

a2 + b2 = c

272 + 132 = c272 + b2 = 132

49 + 169 = c

249 + b2 = 169

218 = c2b2 = 120

Square root 218 equals square root c squared.

Square root b squared equals  

square root 120.

14.76 ≈ cb ≈  

10.95Is either of them correct?  

***************************************************

In a right triangle

hypotenuse^2 = leg1 ^2 + leg2^2

13^2 = 7^2 + leg2^2

leg2^2 = 120

leg 2 = 10.9544511501

Basically, whoever said 10.95 is correct.

Step-by-step explanation:

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Ok what is the question
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