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slava [35]
3 years ago
8

NOONE IS HELPING ME, THIS IS FOR A GRADE

Mathematics
2 answers:
Vitek1552 [10]3 years ago
7 0

Answer:

first one is 57.5 and the  and the second one is 115

Step-by-step explanation:

bazaltina [42]3 years ago
7 0
Second one is 115. dont know the first but eee tuff im sorry bro
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Danni thinks of a number. She subtracts 2 then multiples the result by 8. The answer is the same as subtracting 5 from the numbe
Elena L [17]

Answer:

8

Step-by-step explanation:

let the number=x

8(x-2)=16(x-5)

divide by 8

x-2=2(x-5)

x-2=2x-10

2x-x=-2+10

x=8

8 0
1 year ago
A circular plate has circumference 21.4 inches. What is the area of this​ plate? Use 3.14 for pi.
Brut [27]

Answer:

The area of this plate is 36.31\ \text{inches}^2.

Step-by-step explanation:

We have,

Circumference of a circular plate, C = 21.4 inches

The circumference of a circular shape is given by :

C=2\pi r

r is radius of circular shape

r=\dfrac{C}{2\pi}\\\\r=\dfrac{21.4}{2\times 3.14}\\\\r=3.4\ \text{inches}

Area of this plate is given by :

A=\pi r^2\\\\A=\pi (3.4)^2\\\\A=36.31\ \text{inches}^2

So, the area of this plate is 36.31\ \text{inches}^2.

8 0
3 years ago
What is the value of x?
Inessa05 [86]
3x-14=4x-9
-4x     -4x
-x-14=-9
   -14  -14
-x=-15
-x/-1=-15/-1
x=15
Sorry if this is a bit confusing, but I hope I helped
5 0
3 years ago
Factor: 3.x2 + 7x + 2​
iren [92.7K]

Answer:

x= -1/3 and -2

I have made it in above picture

5 0
3 years ago
Will the answer above be always true for any two consecutive time​ periods, not necessarily of equal​ length?
Elenna [48]

Answer:

It will always be true

Step-by-step explanation:

4 0
3 years ago
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