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3 years ago

What is the probability of the complement of rolling a number less than 5 by using a six sided dye

Mathematics

1 answer:

IrinaVladis [17]3 years ago

3 0

Answer:

2/3

Step-by-step explanation:

Less than 5 is 1,2,3,4 and 4 out of 6 is also equal to 2/3

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What is the answer to this problem please -5a +3(3a -9)=

Basile [38]

You can use the distributive property
-5a + 3 (3a-9)
-5a + 9a -27
4a - 27 = ?

8 0

4 years ago

For the following parameterized curve, find the unit tangent vector. Bold r (t )r(t)equals=left angle 4 cosine (t )comma 4 sine

Phoenix [80]

Answer:

T(t) $=\frac{\langle-4sin(t),4cos(t),-sin(t)\rangle}{\sqrt{16+sin^2t}}$

Step-by-step explanation:

To find the unit tangent vector for $r(t)=\langle4cos(t),4sin(t),cos(t)\rangle$

Unit Tangent Vector = $\frac{r^{I}(t) }{||r^{I}(t) ||}$

Where $r^{I}(t)$ is the derivative of r(t) and $||r^{I}(t)||$ is its modulus.

$r^{I}(t)=\langle-4sin(t),4cos(t),-sin(t)\rangle$

$||r^{I}(t)||=\sqrt{(-4sin(t))^2+(4cos(t))^2+(-sin(t))^2}$

$=\sqrt{16sin^2t+16cos^2t+sin^2t} \\=\sqrt{16(sin^2t+cos^2t)+sin^2t} \\Since sin^2t+cos^2t=1\\=\sqrt{16+sin^2t} \\$

Therefore, Unit Tangent Vector T(t) $=\frac{\langle-4sin(t),4cos(t),-sin(t)\rangle}{\sqrt{16+sin^2t}}$ for $0\leq t\leq \pi$

4 0

4 years ago

Find the distance between the two points in simplest radical form.<br> (1,5) and (-5,8)

Mazyrski [523]

3 square root of 5 or ≈ 6.70820393249937

8 0

3 years ago

THERE ARE FOUR PEOPLE IN A ROOM THAT HAVEN’T MET BEFORE. THEY ARE TOLD TO SHAKE HANDS, EXACTLY ONCE, OF EVERY OTHER PERSON IN TH

liraira [26]

Answer:

Step-by-step explanation:

1 shook 2,3, and 4's hands

2 shook 3, and 4's hands

3 shook 4's hands

4 already got his hand shaken by everyone

1-2, 1-3, 1-4.

2-3, 2-4

3-4

(Anyone feel free to correct me. I'm not amazing at math just trying to help out.)

4 0

3 years ago

THere are 60 dogs in the park. 20% of them are golden retrievers. How many golden retrievers are there in the park? Use a propor

Mrac [35]

Answer:

There are 12 golden retrievers in the park

Step-by-step explanation:

100% is 60 dogs so if 100% is equal to 60 then 20% should be the answer.

100 ÷ 5= 20

60 ÷ 5= 12

amount of dogs in the park : golden retrievers

60 : 12

3 0

3 years ago