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PolarNik [594]
3 years ago
13

Plz help me with 15 and 16

Mathematics
2 answers:
sashaice [31]3 years ago
7 0
Number 15 is no because 67.2 is the same as 67.20. look at a decimal chart it will show u that the 2 is in the tenths place and taking away the zero won't make a difference. also 2 can't round up to 3 because its lower than 5.

number 16 is no because 93 and 97 come before 99 and u count them first before u count 99 so u get to 93 and 97 faster.
Keith_Richards [23]3 years ago
5 0
15 the doctor did not make a mistake because (the rule 5 and below don't round up 5 up round up)
16 nope becaue she took longer than the other girls to run the 200 meter dash
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6. Calculate the area of the octagon in the<br> figure below.
Kryger [21]

Answer:

41\text{ [units squared]}

Step-by-step explanation:

The octagon is irregular, meaning not all sides have equal length. However, we can break it up into other shapes to find the area.

The octagon shown in the figure is a composite figure as it's composed of other shapes. In the octagon, let's break it up into:

  • 4 triangles (corners)
  • 3 rectangles (one in the middle, two on top after you remove triangles)

<u>Formulas</u>:

  • Area of rectangle with length l and width w: A=lw
  • Area of triangle with base b and height h: A=\frac{1}{2}bh

<u>Area of triangles</u>:

All four triangles we broke the octagon into are congruent. Each has a base of 2 and a height of 2.

Thus, the total area of one is A=\frac{1}{2}\cdot 2\cdot 2=2\text{ square units}

The area of all four is then 2\cdot 4=8 units squared.

<u>Area of rectangles</u>:

The two smaller rectangles are also congruent. Each has a length of 3 and a width of 2. Therefore, each of them have an area of 3\cdot 2=6 units squared, and the both of them have a total area of 6\cdot 2=12 units squared.

The last rectangle has a width of 7 and a height of 3 for a total area of 7\cdot 3=21 units squared.

Therefore, the area of the entire octagon is 8+12+21=\boxed{41\text{ [units squared]}}

4 0
3 years ago
Jose now has $500. How much would he have after 6 years if he leaves it invested at 5.5% with annual compounding?
arsen [322]
345.78 is the answer
6 0
3 years ago
GIVING BRAINLIEST ONCE AGAIN
Andru [333]

Answer:

45

Step-by-step explanation:

divide 25 by 5 to see how they got that, which is 5. then multiply 9 by 5 bc you have to do the same thing, which is 45.

3 0
2 years ago
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The solution to the inequality 5x - 4 &gt; 21 is represented by which number line?
andrew-mc [135]

Answer:

Step-by-step explanation:

Start with the given inequality and solve it for x.

First, add 4 to both sides:  5x > 25

Next, divide both sides by 5:  x > 5

The solution (set) is x > 5.

7 0
2 years ago
Jamal spends $63.50 on supplies to make some woodworking items. If he sells his items for $7.25 each, how many items does he hav
qwelly [4]

Answer:

15.65 so round it to 16

Step-by-step explanation:

Add 50 and 63.5 then divide by 7.25

4 0
2 years ago
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