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Ymorist [56]
2 years ago
12

Will give brainlst!!

Mathematics
1 answer:
Sedaia [141]2 years ago
3 0
2.5
,
21
8
,
3
√
25
,
π
,
√
19
2.5
,
21
8
,
25
3
,
π
,
19
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2x+3+x=18 can you guys help the developer solve this
emmainna [20.7K]

2x+3+x=18

2x+x= 3x

3x+3=18

18 - 3 = 15

3x = 15

x = 3

3 0
3 years ago
Read 2 more answers
Carla is cutting pieces of string that are exactly inches long. How many pieces can she cut from a ball of string that is 100 fe
siniylev [52]

Answer:

the answer is  Length of each string = 195/8 inch

Total length= 100*12 = 1200 inch

Number of pieces = Total length/ Length of each piece = 1200/ (195/8)= (1200*8)/195

Step-by-step explanation:

6 0
3 years ago
Write the equation for a parabola with a focus at (-8, -1) and a directrix at y = − 4.
Sidana [21]

Answer:

y = 1/6 x^2 + 8/3 x + 49/6

Step-by-step explanation:

This is a parabola which opens upwards.

The distance of a point (x, y)  from the focus is

√[(x -  -8)^2  + (y - -1)^2] and

the distance of the point from the line y = -4

= y - -4

These distances are equal for a parabola so:

√[(x -  -8)^2  + (y - -1)^2] = y + 4

Squaring both sides:

(x + 8)^2 + (y + 1)^2  = (y + 4)^2

x^2 + 16x + 64 + y^2 + 2y + 1 = y^2 + 8y + 16

x^2 + 16x + 64 + 1 - 16 = 8y - 2y

6y = x^2 + 16x + 49

y = 1/6 x^2 + 8/3 x + 49/6 is the equation of the parabola.

4 0
3 years ago
one gym chargers $40 per month and $3 per exercise class. another gym charges $20 per month and $8 per exercise class. after how
S_A_V [24]
4 classes, $52
Do it the long way to check
7 0
3 years ago
The price of a mobile phone decreased from $375 to $250 during a clearance sale. What is the percent of decrease in the price?
Tresset [83]
So decrease is 375-250=75

so convert 75/375 to percent
percent means part out of 100 so 
x/100=x%

divide 125/375=0.3333/1

multiply by 100/100=33/100=33%

the answer is 33% or B
4 0
3 years ago
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