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Snowcat [4.5K]
3 years ago
14

Ariel weighed an object on her balance and recorded a mass of 23.9 grams. Her teacher told her that there was obviously somethin

g wrong with her balance because it was giving her a reading which was 30.4% too high. What was the actual mass of the object?
Mathematics
1 answer:
kondaur [170]3 years ago
7 0

Answer:

<u>Rounded:</u> 16.34

Step-by-step explanation:

The OG(original) mass is 23.9 grams.

30.4% is too high of the actual mass.

Find out 69.6% of 23.9.

Set up problem.

    x            69.6%                  

______ = ______

 23.9          100%

Find x.

69.6 x 23.9 = 1,663.44

1,663.44/100 = 16.344

= 16.344

Not sure if this is correct but I tried my best. :)

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Dovator [93]

Answer:

Trapezoid

Quadrilateral

Step-by-step explanation:

7 0
3 years ago
Use the factor theorem to determine whether the first polynomial is a factor of the second polynomial
Diano4ka-milaya [45]

Answer:

not a factor

Step-by-step explanation:

If (x - 3) is a factor then f(3) = 0

f(x) = 2x² - 4x + 30

f(3) = 2(3)² - 4(3) + 30 = 18 - 12 + 30 = 36 ≠ 0

Since f(3) ≠ 0 then (x - 3) is not a factor of f(x)

3 0
3 years ago
The box plots show the weights, in pounds, of the dogs in two different animal shelters.
zimovet [89]

*see attachment below for the box plots that is being referred to

Answer:

*The median weight for shelter A is greater than that for shelter B

*The data for shelter B are a symmetric data set

Step-by-step explanation:

Let's take each stated option and examine the box plot to see which is TRUE or NOT.

OPTION 1: "The median weight for shelter A is greater than that for shelter B."

The median for shelter A = 21,

Median for shelter B = 18

Median weight for shelter A (21) is greater than that for shelter B.

This statement in this option is TRUE.

OPTION 2: "The median weight for shelter B is greater than that for shelter A."

Median for B (18) < median of A (21)

This statement in option is NOT TRUE.

OPTION 3: "The data for shelter A are a symmetric data set."

This is NOT TRUE because the length of both whiskers are unequal and also, the box is not divided equally. One side is longer than the other.

OPTION 4: "The data for shelter B are a symmetric data set."

This is TRUE because the length of both whiskers are relatively equal, and also, the rectangular box is divided equally.

OPTION 5: "The interquartile range for shelter A is 8"

This is NOT TRUE.

IQR = Q3-Q1

IQR for shelter A is approximately  = 28-17 = 11

5 0
3 years ago
Jessica is measuring two line segments. The first line segment is 30 centimeters long. The second line segment is 500 millimeter
Zolol [24]

Answer:

800 mm or 80 cm

Step-by-step explanation:

We are given that Jessica is measuring two line segments.

Length of first line segment  =30 cm

Length of second line segment=300 mm

We have to find that Length of two line segments together

We know that 1 cm =10 mm

Length of firs line segment =

Length of two line  segments together=500+300=800 mm=

Hence, the length of two line segments together=800 mm=80 cm

Read more on Brainly.com - brainly.com/question/544258#readmore

8 0
3 years ago
Find the difference between 28 and -12
il63 [147K]

Answer:

16

Step-by-step explanation:

The differnce of 28 and 12 is 16 because, 28-12=16 and 16+12=28

6 0
3 years ago
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