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Kamila [148]
2 years ago
14

U Get 73 pts !!CAN I PLS GET HELP !!!!Cassandra calculated the total volume of the figure below. A rectangular prism has a lengt

h of 7 inches, width of 6 inches, and height of 7 inches. A rectangular pyramid has a base of 6 inches by 7 inches and a height of 3 inches. Total volume = V of prism – V of pyramid       = Bh - Bh       = (7)(6) (7) – (7)(6)(3)       = 294 – 126       = 168 square inches What mistakes did Cassandra make? Check all that apply. She used square units instead of cubic units. In calculating the volume of the pyramid, she did not multiply by 1/3. She incorrectly identified the shapes composing the total figure. She subtracted the pyramid volume instead of adding it. She should have multiplied the dimensions of the prism by 1/3.
Mathematics
2 answers:
Arlecino [84]2 years ago
8 0

Answer:

1.She used square units instead of cubic units.

2.In calculating the volume of the pyramid, she did not multiply by 1/3.

4.She subtracted the pyramid volume instead of adding it.

Step-by-step explanation:

because i got it right on my test.

garik1379 [7]2 years ago
8 0

Answer:

A, B, D

Step-by-step explanation:

took the test and got it right

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over the course of numbering every page in a book, a mechanical stamp printed 2929 individual digits. How many pages does the bo
Kazeer [188]

1. Page 1-9  (1digit/page x 9page) = 9 digits = 9 page

2. Page 10-99 (2digits/page x 90page)= 180 digits = 90 page

3. Page 100-999 (3digits/page x 900page)= 2700 digits = 900 page

2,929 total digits – (9 digits + 180 digits + 2700 digits)= 40 digits

Since there are only 4 digits after page 999 we divide 40/4 = 10, thus there are 10 more pages after 999

So the book has 1009 pages.

Hope this answer will be a good help for you.

<span> </span>

4 0
2 years ago
The table and the graph show the relationship between the edge length, x, of a cube and its surface area, y. Is the relation a f
d1i1m1o1n [39]

Answer:

Yes, the relationship between x and y is a non-linear function.

Step-by-step explanation:

Given the table

Edge Length, x            Surface Area, y

1                                             6

2                                            24

3                                            54

4                                             96

  • The table values clearly represent a function, because each input value has one and only one output value. i.e. there is no repetition of x values.

  • Also from the table values and the graph, it is clear that the function is not a linear function, because the graph is not a straight line. Also, In a cubic function, the highest power over the x variable(s) is 3. So, it is not a linear function.

Hence, we conclude that Yes, the relationship between x and y is a non-linear function.

Therefore, the 'last option' is correct.

4 0
2 years ago
The length of a rectangular picture is 5 inches more than three times the width. Find the dimensions of the picture if its perim
luda_lava [24]

Answer:

<h3>Length = 29 inches</h3><h3>Width = 8 inches</h3><h3 />

Step-by-step explanation:

Perimeter of a rectangle = 2l + 2w

where

l is the length of the rectangle

w is the width

From the question

length of a rectangular picture is 5 inches more than three times the width is written as

l = 5 + 3w

Now substitute this into the above equation

Perimeter = 74 inches

74 = 2(5 + 3w) + 2w

74 = 10 + 6w + 2w

8w = 74 - 10

8w = 64

Divide both sides by 8

w = 8 inches

Substitute w = 8 into l = 5 + 3w

That's

l = 5 + 3(8)

l = 5 + 24

l = 29 inches

<h3>Length = 29 inches</h3><h3>Width = 8 inches</h3>

Hope this helps you

4 0
2 years ago
Read 2 more answers
Nina had 9 apples to share with 5 of her friends. If all 6 people get equal share , how many apples will each person get? How do
Umnica [9.8K]
<span> Nina + her 5 friends = 6 people
Then she has 9 apple to share with her and her friends.
Let’s calculate how many apple will each people get when they equally divide it with each other:
=> 9 – 6 = 3
Thus already have 1 apple each, now, let’s divide the remaining 3 apples
=> 3 / 6 = .5
So they have half of apple each. Let’s add
=> 1 + .5 = 1.5
Each person will get 1.5 apple.
=> 1.5 * 6 = 9</span>



7 0
2 years ago
Read 2 more answers
A student wants to know how far above the ground the top of a leaning flagpole is. At high noon, when the sun is almost directly
Sonbull [250]

Answer:

16.30 ft ≈ 16 ft 4 in

Step-by-step explanation:

Please see the image attached. According to the figure, AB is the leaning flag. When the sun is directly overhead at noon, the shadow of the flag is the line AC in the figure. The length of AC is 5ft. The length of the string of plumb bob is 3ft and this is represented by the line XY. Y is the point of the plumb bob and this is at a distance of 11 in ( = \frac{11}{12} = 0.92ft from the base of the flag, i.e, AY = 0.92ft.

Now, the angle between the AB and AC is taken as ∅. In traingle AXY, tan(∅) = \frac{XY}{AY}. In triangle ABC, for the same ∅, tan(∅) = \frac{BC}{AC}. Therefore,  tan(∅) = \frac{XY}{AY} = \frac{BC}{AC}. Here, XY = 3ft, AY = 0.92ft, AC = 5ft.

\frac{XY}{AY} = \frac{BC}{AC} == \frac{3}{0.92} = \frac{BC}{5}

Therefore, BC = \frac{3}{0.92}×5 = 16.30 ft ≈ 16 ft 4 in.

7 0
2 years ago
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