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Gre4nikov [31]
3 years ago
8

How many solutions does this system have?x - y = -4 3x + y = 8

Mathematics
1 answer:
Naddika [18.5K]3 years ago
5 0
It has one solution
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Please help! 10 points and brainlyist!!
yarga [219]

Answer:

1.80 in^3

1.0 fluid ounces^3

Step-by-step explanation:

volume of a cone = 1/3 πr²h

π = 3.14

r = 2.2 / 2 = 1.1

h = the value of h can be determined using Pythagoras theorem

The Pythagoras theorem : a² + b² = c²

where a = length

b = base

c =  hypotenuse

1.8² = 1.1² + b²

3.24 = 1.21 + b²

3.24 - 1.21 = b²

2.03

b = √2.03 = 1.42

Volume = 1/3 x 3.14 x 1.21 x 1.42 = 1.80 in^3

1.80 x 0.554 = 1.0 fluid ounces^3

5 0
3 years ago
What is 1/4 of 5/6???
storchak [24]

you search the LCD then you subtracted the top and left the bottom the same

Step-by-step explanation:

im not sure

4 0
3 years ago
The average person's head has about 100,000 strands of hair.
Ber [7]
B because 1 * 10^5 is equal to 100,000 as it moves 5 digits to the left (5 zeros)
4 0
3 years ago
Read 2 more answers
What is the height of a cone given it has a volume of 225 cm and a base diameter of<br> 10 cm?
Sphinxa [80]

Answer:

B. 8.6 cm

Step-by-step explanation:

⅓*πr²h = Volume formula of a cone (V)

Volume of cone (V) = 225 cm³

diameter of cone (d) = 10 cm

radius of cone (r) = ½(10) = 5 cm

height (h) = ?

Plug in the values into the equation and solve for h

⅓ × π × 5² × h = 225

⅓ × π × 25 × h = 225

(25π × h)/3 = 225

Multiply both sides by 3

(25π × h)/3 × 3 = 225 × 3

25π × h = 675

Divide both sides by 25π

h = 675/25π

h ≈ 8.6 cm (nearest tenth)

7 0
3 years ago
What greatest common factor should be used to reduce the fraction 12 over 40
Gala2k [10]

Answer:

10

Step-by-step explanation:u

5 0
3 years ago
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