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Lana71 [14]
4 years ago
15

What’s a rotation of 90 degrees clockwise?

Mathematics
2 answers:
Blizzard [7]4 years ago
7 0
When we rotate a figure of 90 degrees clockwise, each point of the given figure has to be changed from (x, y) to (y, -x) and graph the rotated figure.
malfutka [58]4 years ago
5 0
A rotation of 90 degrees clockwise is 360 degrees
You might be interested in
Need help with geometry question?
damaskus [11]
45 degrees because vertical angles are congruent


6 0
3 years ago
S
Aleks04 [339]

9514 1404 393

Answer:

  26.13 ft²

Step-by-step explanation:

The total area is twice the area of the right triangles plus half the area of a circle of radius 3 ft.

  Semicircle area = (1/2)(πr²)

  semicircle area = (1/2)(3.14)(3 ft)² = 14.13 ft²

The area of the two right triangles is ...

  total triangular area = (3 ft)(4 ft) = 12 ft²

Then the area of the figure is ...

  figure area = semicircle area + total triangular area

  = 14.13 ft² + 12 ft² = 26.13 ft²

7 0
3 years ago
Read 2 more answers
A person’s theoretical maximum heart rate (in heartbeats per minute) is 220 - x where x is the person’s age in years (20 ≤ x ≤ 6
Lyrx [107]

Let f(x) represents the heart beat of the person.

Now, we have been given that person’s theoretical maximum heart rate is given by  220 - x.

Also, we have been given that person strive for a heart rate that is at least 50% of the maximum. At least means greater than equal to.

Thus, we have

f(x)\geq (220-x)0.5\\
f(x)\geq 110-0.5x

Also, we have been given that person strive for a heart rate that is at most 75% of the maximum. At most means less than equal to.

f(x)\leq (220-x)0.75\\
\\
f(x)\leq 165-0.75x

Therefore, the system of inequality is given by

f(x)\geq 110-0.5x\\
f(x)\leq 165-0.75x

6 0
3 years ago
Half a number increased by 10 is equal to 35 less than twice the number. What is the number?
faust18 [17]

Answer:

x=10

Step-by-step explanation:

x/2 + 10 = 35 - 2x

x/2 + 2x = 35 - 10

5x/2 = 25

5x = 25.2

5x = 50

x = 50/5

x = 10

8 0
3 years ago
It is known that 10% of the calculators shipped from a particular factory are defective. what is the probability that at least o
seraphim [82]
P = 10% = 0.1
q = 1 - 0.1 = 0.9
P(at least one defective calculator) = P(1) + P(2) + P(3) + P(4) = 1 - P(0)

The brobability of a binomial distribution is given by
P(x)=^nC_xp^xq^{n-x}
where: n = 4
P(0)=^4C_0(0.1)^0(0.9)^4=1\times1\times0.6561=0.6561
Therefore,
P(at least one defective calculator) = 1 - 0.6561 = 0.3439
6 0
4 years ago
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