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makvit [3.9K]
3 years ago
15

What is the product?

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

Answer:

ite B

Step-by-step explanation:

egoroff_w [7]3 years ago
5 0

\frac{4k + 2}{ {k}^{2}  - 4}  \times  \frac{k - 2}{2k + 1}

\ \frac{4k(k - 2)2(k - 2)}{ {k}^{2}(2k + 1) - 4(2k + 1) }

\frac{4 {k}^{2} - 8k + 2k - 4 }{2 {k}^{3} +  {k}^{2} - 8k - 4  }

\frac{4 {k}^{2}  + 2k}{2 {k}^{3}  +  {k}^{2} }

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30 students in a class took an algebra test.
lesya [120]

Answer:

70%

Step-by-step explanation:

21/30      p/100

30/30=2,100/30=70

5 0
3 years ago
An 80-m tower is supported by a guy wire attached to the top of the tower. If the wire forms an
nalin [4]

The Sine or Sinθ in a right-angle triangle is the ratio of its perpendicular to its Hypotenuse. The length of the wire is 81.5 meters.

<h3>What is Sine (Sinθ)?</h3>

The Sine or Sinθ in a right-angle triangle is the ratio of its perpendicular to its Hypotenuse. it is given as,

Sin(θ) = Perpendicular/Hypotenuse

where,

θ is the angle,

Perpendicular is the side of the triangle opposite to the angle θ,

The hypotenuse is the longest side of the triangle.

The length of the tower is 80 meters, while the angle of elevation is 79°. Therefore, the length of the wire will be the hypotenuse of the triangle. Therefore, the length of the wire is,

Sin(θ) = Perpendicular/Hypotenuse

Sin(79°) = 80 meter/Length of the wire

Length of the wire = 81.4973 ≈ 81.5 meters

Hence, the length of the wire is 81.5 meters.

Learn more about Sine:

brainly.com/question/21286835

#SPJ1

5 0
2 years ago
Please help! will give 30 points!
insens350 [35]

Answer:

Other needs =25,2 degrees

insurance = 100,8 degrees

Taxes= 7,2

Housing = 57,6

food= 57,6

childcare = 64,8

transportation = 46,8

Step-by-step explanation:

Its % of 360 degrees so you have to calculate the percentage of each categorie on 360 degrees to find the angles. Exemple, for the Other needs, you take 7% out of 360 degrees and you find that it is equal to 25,2. (7% x360 degrees /100)

7 0
3 years ago
If 2 miles is equal to 3,218.7meters, how many meters are there in 7 miles
AysviL [449]
3218.7/2 is 1 mile so answer is
2(3218.7/2)= 11265.45
7 0
2 years ago
HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Tatiana [17]
First you are going to look at the smallest box and figure out what the area is once you do that you will need to find the area of the bigger box once you figure out both of the areas you will then find out what they are you will then add up the amounts to get the area of both squares together  

6 0
3 years ago
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