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2 years ago

Help!! Which of the following represents a rotation

Mathematics

1 answer:

Neporo4naja [7]2 years ago

4 0

Another test question. whyyy

Answer is the last one because look at the new coordinates shown in blue.

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What is the most accurate representation of the area of a plot measuring 11.7cm by 15.4cm ?

Aleks04 [339]

Area=width*height
area=(11.7)*(15.4)
area=180.18cm^2

7 0

2 years ago

The area that lies between Z= - 0.42 and Z= 0.42 is

valentinak56 [21]

Answer:

the answer is 0.84

Step-by-step explanation:

assume the two numbers are on a number line and take the absolute value of their difference

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2 years ago

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Can you please help me with this problem!!

Black_prince [1.1K]

Answer:

Step-by-step explanation:

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2 years ago

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Determine of which lines, if any, are parallel or perpendicular. Explain.

nalin [4]

Answer:

lines b and c are perpendicular

Step-by-step explanation:

Use slope

slope for parallel is the same

slope for perpendicular is negative reciprocal

line a slope- 1-3/-2-0 is -2/-2 or 1

line b slope- 1-4/4-6 is -3/-2 or 3/2

line c slope- 3-1/1-4 is 2/-3 or - 2/3

none are the same so none are parallel

- 2/3 is the negative reciprocal of 3/2 so lines b and c are perpendicular

8 0

2 years ago

What is the volume of a hemisphere with a radius of 2.3m round to the nearest tenth of a cubic meter

kodGreya [7K]

Answer: $25.5 m^{3}$

Step-by-step explanation:

If the volume of a sphere is

$V=\frac{4}{3} \pi r^{3}$

Where $r=2.3 m$ is the radius

The volume of a hemisphere is half the volume of the total sphere:

$V_{hemisphere}=\frac{V}{2}=\frac{\frac{4}{3} \pi r^{3}}{2}$

$V_{hemisphere}=\frac{2}{3} \pi r^{3}$

Solving this equation:

$V_{hemisphere}=\frac{2}{3} \pi (2.3 m)^{3}$

Finally:

$V_{hemisphere}=25.48m^{3} \approx 25.5 m^{3}$

5 0

2 years ago