3 years ago

Which of the following best represents the speed of Halley's comet when it is nearest to Earth?

Mathematics

2 answers:

Tasya [4]3 years ago

8 0

I believe it would be A but i could be way off

Tema [17]3 years ago

6 0

B
1x 10-5 kilometers per hour hopefully that is right

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Jeremy can row 3/8 of a mile in 1/4 of an hour.

Elza [17]

Answer:

3/2 mph

Step-by-step explanation:

$\frac{3}{8}$ = $\frac{r}{4}$

cross-multiply: 8r = 12

r = 12/8 or 1.5 mph

6 0

3 years ago

Simplify 3(y-1)+7 completely

SVEN [57.7K]

Answer:

3y + 4

Step-by-step explanation:

3(y-1) +7

3y -3 +7

3y +4

4 0

3 years ago

Francesca is looking at an airplane. She measures the angle at which she is looking up and finds it to be 55 degrees. If the air

lions [1.4K]

<h2>Answer:</h2>

Option: B is the correct answer.

B. 36,623 feet

<h2>Step-by-step explanation:</h2>

The angle of elevation is: 55 degree

We model this problem by taking a right angled triangle such that the side opposite to the 55 degree is of length 30000 feet.

Now let us consider x denote the distance of the plane from Francesa.

i.e. x denote the hypotenuse of the right angled triangle.

Hence, in right angled triangle i.e. ΔABC we have:

$\sin 55=\dfrac{30000}{x}\\\\i.e.\\\\x=\dfrac{30000}{\sin 55}\\\\i.e.\\\\x=\dfrac{30000}{0.81915}\\\\\\i.e.\\\\\\x=36623.2376\ feet$

Round to the nearest feet we get: x=36,623 feet

6 0

3 years ago

Read 2 more answers

Figure TQRS~ BCDE.Name a pair of Corresponding sides

Elis [28]

Answer:

the pair of corresponding sides are:QT=CB,RS=DE,QR=CD,TS=BE..

These are the name of corresponding sides.

hope this will help you more..good luck

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3 years ago

Statement: "Three less than four times a number is greater<br> than or equal to 41."

lions [1.4K]

Answer:

x≥11

Step-by-step explanation:

4x-3≥41

4x≥41+3 -44

x≥44/4 = 11

8 0

2 years ago