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weeeeeb [17]
2 years ago
6

Help ;-;

Mathematics
2 answers:
Airida [17]2 years ago
6 0

Answer:15 and one-half

Step-by-step explanation:

Georgia [21]2 years ago
4 0

Answer: 15 and one-half

Step-by-step explanation:

14/2 + 3(4) - (6.5 - 3)

Use PEMDAS

14/2 + 3(4) - 3.5

Use PEMDAS

7 + 12 - 3.5

Use PEMDAS

15.5

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Terrence took a total of 16 pages of notes during 8 hours of class. In all, how many hours will
r-ruslan [8.4K]
16 pages/8 hrs

2 pages/ he

18/2=9

18 pages/9 hrs

9 hours is your answer.
3 0
2 years ago
A triangle is dilated by a scale factor of 1/5 and then rotated 90 degree clockwise about the origin. Why is the image similar t
yan [13]
<u><em>Answers:</em></u>
The corresponding angles of the triangles are congruent
The image is a reduction of the pre-image
Neither the dilation nor the rotation change the shape of the triangle

<u><em>Explanation:</em></u>
<u>For shapes to be similar:</u>
1- there should be a ratio between the sides
2- angles in first shape should be congruent to angles in second shape

Now, a scale factor of 0.2 means that the sides of the image are 0.2 of the length of the original shape. However, angles are not changes

<u>Let's check the choices:</u>
<u>1- </u><span><u>The corresponding sides of the triangles are congruent:</u>
This option is incorrect as dilation changes the lengths of the sides

<u>2- </u></span><span><u>The corresponding angles of the triangles are congruent:</u>
This option is correct as neither dilation nor rotation alters the measures of the angles

<u>3- </u></span><span><u>The corresponding sides of the image are 5 times as long as those of the pre-image:</u>
This option is incorrect as the sides of the image are only 0.2 times as long as those of the pre-image

<u>4- </u></span><span><u>The image is a reduction of the pre-image:</u>
This option is correct as the sides of the image are 0.2 times those of the pre-image which means that the shape is reduced

<u>5- </u></span><span><u>Neither the dilation nor the rotation change the shape of the triangle:</u>
This option is correct as both dilation and rotation are rigid transformations that do not alter the shape of the triangle (a triangle remains a triangle only with different side lengths)

<u>6- </u></span><u>The rotation reduces the size of the triangle:</u>
This option is incorrect as rotation does not alter the size of the shape. It only changes its position

Hope this helps :)

3 0
3 years ago
Read 2 more answers
(0,4), (1,0), (2,0), (2,3), (3,1) is it a function
Anni [7]
Vas happenin!!

A proper function is when the x value is NOT repeating


This choice is repeating X’s. So it’s not a function


Hope this helps


-Zayn Malik
5 0
2 years ago
Answer this real-world question
Mrrafil [7]

Answer:

After 15 days they'll both have $10

Explanation:

100 (Xavier's total)- 6x (6 dollars every day) = 160 (Zach's total amount) -10x (10 dollars every day)

100-6x=160-10x\\

+10x on both sides

100+4x=160

-100 on both sides

4x=60

/4 on both sides

x=15

4 0
2 years ago
The difference of the range and the interquartile range of the data set represented by the box plot is .
Ivahew [28]
When presented with a box plot, it is better to identify the 5 numbers that are important in the box plot.

5 number summary of the boxplot.
1) minimum number - 16
2) 1st quartile - 21
3) 2nd quartile or median - 26
4) 3rd quartile - 29
5) maximum number - 34

Range is the difference of the maximum value from the minimum value of the data set.
Interquartile range is the difference of the 3rd quartile from the 1st quartile.

Range: 34 - 16 = 18
IQR: 29 - 21 = 7


6 0
3 years ago
Read 2 more answers
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