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3 years ago

How do I reflect over x=3 ??

1 answer:

3 0

This last claim is because x can be thought of as 2+a, where "a" could be negative! Now x needs to go to 2-a, but solveing for "a" in x=2+a gives a=x-2, so the new x is
2-a = 2-(x-2) = 4-x. 

(-1,1) => (5,1) 
(0,4) => (4,4) 
(-3,4) => (7,4)

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Find the quotient: 7/8 ÷ 3/8 A 21/64 B 3/7 C 2 1/3 D 7 1/3

pantera1 [17]

D

explanation:

7/8 x 8/3=56/24—simplify—-> 7/3

4 0

3 years ago

HELP PLEASE

Arturiano [62]

The plane will end up flying 5.02°.

The plan's speed relative to the ground will be 645.91 km/hr.

Solution:

Use the cosine formula,

$a^{2}=b^{2}+c^{2}-2 b c \cos A$

Substitute the given values in the formula,

$\mathrm{R}^{2}=700^{2}+80^{2}-(2 \times 700 \times 80 \times \cos 45^\circ)$

$\mathrm{R}^{2}=490000+6400-(112000 \times\frac{1}{\sqrt{2} } )$

$\mathrm{R}^{2}=496400-79195.95$

$\mathrm{R}^{2}=417204.049$

Taking square root on both sides, we get

R = 645.91 km/hr

This is the grouped speed of the aircraft.

To find θ use sine rule.

$$\frac{\sin C}{c}=\frac{\sin A}{a}$

$$\frac{\sin \theta}{80}=\frac{\sin 45}{645.91}$

Do cross multiplication, we get

$${\sin \theta}}=\frac{\sin 45}{645.91}\times 80$

$${\sin \theta}}=\frac{\frac{1}{\sqrt{2} } }{645.91}\times 80$

sin θ = 0.0875

θ = 5.02°

This is known as the drift angle and is the correction the pilot should apply to remain on course.

The heading is the direction the aircraft's nose is pointing which is

The track is the actual direction over the ground which is θ = 5.02°

An alternative method to this would be to separate each vector into vertical and horizontal components and add.

The resultant can be found using Pythagoras.

7 0

4 years ago

ANSWER QUESTION PLEASE!!

Fynjy0 [20]

Answer:

W = 2t + 8

Step-by-step explanation:

weight from birth plus number of months times 2 equals your total weight.

5 0

3 years ago

A train leaves a station at 10:40 a.m. and arrives at its destination at 1:20 p.m. Find the distance between the stations if the

Katena32 [7]

Average speed = distance / time

60 = distance / (13.20 - 10.40)

13.20 - 10.40 = 2 hours 40 minutes = 2 2/3 hours

60 = distance / 8/3 = 3 d / 8 (where d = distance)

3d = 480

d = 480/3 = 160 miles Answer

4 0

4 years ago

How do I do this problem?

USPshnik [31]

Answer: 120 feets

Step-by-step explanation:

6 0

4 years ago