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anastassius [24]
3 years ago
15

Can you please help me on 2,3,4, and 5? I will mark the brainliest plus 12 points for answering.

Mathematics
1 answer:
Marianna [84]3 years ago
8 0

Answer:

2) Exact

3) Exact

4) Exact

5) Approximation

Step-by-step explanation:

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Need help asap with work​
Dominik [7]

Answer:

f(n)=2+4n

Step-by-step explanation:

when they are combined, there are two taken away, so we can just say that there are two added in total, and the number of grey hexagons is n, and it would be 4n because there are 2 taken away like i said earlier if that makes sense :)

6 0
3 years ago
HELP HELP HELP
kirill [66]

Answer: I think b=5

Step-by-step explanation:

3 0
2 years ago
Find the center and radius of a circle defined by the equation x^2+yy^2+4x-8y+13=0
gogolik [260]
Hello : 
x²+y²+4x-8y +13 = 0
(x² +4x) +(y² -8y )+13 = 0
(x²+4x+4) -4 +(y-8y +16) -16 +13 = 0
(x+2)² +(y -4)² = 7
the center is : (-2 , 4) and radius <span>√7</span>
8 0
3 years ago
What are the answers here?
bezimeni [28]

Answer:

The slope is 3

The y-intercept is -2

The linear equation is y = 3x - 2

Step-by-step explanation:

The form of the linear equation is y = m x + b, where

  • m is the slope of the line
  • b is the y-intercept
  • The rule of the slope of a line that passes through points (x1, y1) and (x2, y2) is m = \frac{y2-y1}{x2-x1}

∵ A line passes through points (2, 4) and (6, 16)

∴ x1 = 2 and y1 = 4

∴ x2 = 6 and y2 = 16

→ Substitute them in the rule of the slope above to find it

∵ m = \frac{16-4}{6-2} = \frac{12}{4} = 3

∴ m = 3

→ Substitute it in the form of the equation above

∴ y = 3x + b

→ To find b substitute x and y in the equation by the coordinates of

   a point on the line

∵ Point (2, 4) is on the line

∴ x = 2 and y = 4

∵ 4 = 3(2) + b

∴ 4 = 6 + b

→ Subtract 6 from both sides to find b

∵ 4 - 6 = 6 - 6 + b

∴ -2 = b

→ Substitute its value on the equation above

∵ y = 3x + (-2)

∴ y = 3x - 2

→ Let us answer the questions

The slope is 3

The y-intercept is -2

The linear equation is y = 3x - 2

8 0
3 years ago
A scientist studied the migration patterns of two types of whales.
Art [367]

Answer: B 192

Step-by-step explanation: In the picture attached, the complete question is shown.

The humpback whale traveled 2240 miles in 28 days. This makes the following rate:

rate = distance/time = 2240/28 = 80 miles/day

The distance traveled at this rate in 32 days is:

distance = rate * time = 80*32 = 2560 miles

The gray whales traveled 2368 miles in 32 days. Then, the humpback whales would have traveled 2560 - 2368 = 192 miles more than the gray whales.

8 0
2 years ago
Read 2 more answers
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