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3 years ago

Which of the following is an irrational number?4/3 , ^24, ^81, -4.07

1 answer:

6 0

Well lets start by narrowing the answers.
You can't have a fraction as a irrational number so even though 4/3= 1 1/2 its still not an irrational number.
Negative 4.07 also can't be an irrational number because an irrational number is a number that never ends and even thought irrational numbers can be written as decimals -4.07 is not an irrational number.
I don't really want to give u the answer but I did limit ur choices so hope that helps!!!

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BC is tangent to circle A at B and to circle D at C. AB= 10 BC= 21 DC= 8 find AD to the nearest tenth

Andrei [34K]

The attached diagram is an interpretation of the question.
If there are other details, please post.

The distance AD is found by Pythagoras theorem, with
AD=sqrt(BC^2+(AB-DC)^2)=sqrt(21^2+2^2)=sqrt(441+4)=sqrt(445)
=21.095 (to the third decimal place)

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3 years ago

A truck driver always drives 3 miles per hour. She drives for 5 hours each day. How many miles will she drive in 3 days?

nata0808 [166]

Answer:

45 miles in 3 days

Step-by-step explanation:

if she drives 3 miles an hour for 5 hours a day that would be 3x5=15

15x3 days=45 miles in 3 days

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2 years ago

An airplane is flying at 35,000 feet above sea level airplane started to send a rate of 2500 ft./min. after five minutes how man

vitfil [10]

Answer:

22,500 feet

Step-by-step explanation:

Initial Height of the airplane = 35000 feet

Rate of descend = 2500 ft/min

This means for every minute the height of the plane is decreasing by 2500 feet.

We have to find how high above the sea level is the airplane after 5 minutes.

Since, in one minute the distance of plane is decreasing by 2500 feet, in 5 minutes the decrease in its distance would be = 2500 x 5 = 12,500 feet

Thus, after 5 minutes the height of airplane would have decreased by 12,500 feet. Since, the initial height of airplane was 35,000 feet, the new height after 5 minutes would be:

Height after 5 minutes = 35000 - 125000 = 22,500 feet

After 5 minutes, airplane is 22,500 feet above the sea level

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3 years ago

The perimeter of a triangle is 133 inches. If one side of the triangle is five more than the shortest side, and the longest side

barxatty [35]

133=x + (x+5) + (x+14)

133 = 3x+19

3x=114

x= 114/3 =38

5+38 =43

38+14 =52

check: 38 +43 +52 = 133

3 sides are : 38, 43 & 52

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3 years ago

Select all expressions that represent the area of the quadrilateral shown.

marissa [1.9K]

Answer:

A) and D)

Step-by-step explanation:

The area of the quadrilateral = 42 square units

A) 42

B) 50

C) 54

D) 42

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2 years ago

Read 2 more answers