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OlgaM077 [116]
3 years ago
15

Plzzz help -7/9 times 9/8 in fraction form

Mathematics
2 answers:
olga2289 [7]3 years ago
6 0

Answer:

7/8 (simplified)

Step-by-step explanation:

Irina-Kira [14]3 years ago
4 0

Answer:

-7/8

Step-by-step explanation:

-7/9*9/8

Simplify

-7/1*1/8=

-7/8

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On a test, George was asked to find the square root of 0.45.
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Answer:

The square route of 0.45 is 0.7.

Step-by-step explanation:

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3 years ago
From the 12 players who will travel, the coach must select her starting line-up. She will select a player for each of the five p
gizmo_the_mogwai [7]

Answer:

990

Step-by-step explanation:

The center position can be selected in 3 different ways, the other 4 players can be selected in combinations of 11 players (the center is already selected) taken 4 at a time.

By the Fundamental Principle of Counting, there are

3\displaystyle\binom{11}{4}=3*\displaystyle\frac{11!}{4!(11-4)!}=3*\displaystyle\frac{11!}{4!7!}=990

ways for her to select the starting line-up.

7 0
3 years ago
How do you eliminate the radical sign?
vekshin1

Answer:

Step-by-step explanation:

you can eliminate the radical by squaring both sides of the equation

4 0
2 years ago
Remember that to multiply means: add any given number or quantity to itself a certain number of times. Look at the expression 3
brilliants [131]

(3+3+3+3=12) (3x4=12)

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3 0
2 years ago
a 15-foot telephone pole has a wire that extends from the top of the pole to the ground. The wire and the ground form a 42 degre
scoundrel [369]

Answer:

The length of the wire is 22.42 feet

The distance from the base of the pole to the spot where the wire touches the ground is 16.66 feet

Step-by-step explanation:

* Lets explain the situation in the problem

- The telephone pole , the wire and the ground formed a right triangle

- The wire is the hypotenuse of the triangle

- The height of the telephone pole and the distance from the base of

 the pole to the spot where the wire touches the ground are the legs

 of the triangle

- The angle between the wire and the ground is 42°

- The angle 42° is opposite to the height of the telephone pole

- The height of the telephone pole is 15 feet

* Lets use the trigonometry functions to find the length of the wire

 (hypotenuse) and the distance from the base of the pole to the spot

 where the wire touches the ground

∵ sin Ф = opposite/hypotenuse

∵ Ф = 42° and its opposite side = 15 feet

∴ sin 42 = 15/hypotenuse ⇒ by using cross multiplication

∴ sin 42° (hypotenuse) = 15 ⇒ divide both sides by sin 42

∴ hypotenuse = 15/sin 42° = 22.42 feet

∵ The length of the wire is the hypotenuse

∴ The length of the wire is 22.42 feet

∵ The distance from the base of the pole to the spot where the wire

   touches the ground is the adjacent side to the angle 42°

∵ tan Ф = opposite/adjacent

∴ tan 42° = 15/adjacent ⇒ by using cross multiplication

∴ tan 42° (adjacent) = 15 ⇒ divide both sides by sin 42

∴ adjacent = 15/tan 42° = 16.66 feet

∵ The adjacent side is the distance from the base of the pole to the

  spot where the wire touches the ground

∴ The distance from the base of the pole to the spot where the wire

   touches the ground is 16.66 feet

7 0
3 years ago
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