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Ostrovityanka [42]
2 years ago
15

Need help 21,22,23,24,25 pleasee help

Mathematics
1 answer:
zimovet [89]2 years ago
3 0

Answer:

21. C

22. D I got 263.89

23. I'm not sure about this one

24. C

25. D

Step-by-step explanation:

I hope the ones i answered were correct if not i am sorry

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Will mark Brainliest!!!!
Zinaida [17]

Answer:

  1. Parallel
  2. Neither parallel nor perpendicular ​
  3. Perpendicular

Step-by-step explanation:

<u>Given line m:</u>

  • y = 4/5x - 3

<u>Relationship of line m with following lines:</u>

1.<u> y = 4/5x + 3</u>

  • Same slope, different y-intercept
  • Parallel

2. <u>y = -4/5x + 3</u>

  • Slope are negative, different y-intercept
  • Neither parallel nor perpendicular ​

3. <u>y = - 5/4x + 3</u>

  • Slopes are negative-reciprocal, different y-intercept
  • Perpendicular
7 0
2 years ago
What is the surface area of the triangular prism?
Svetlanka [38]

Answer:

84

Step-by-step explanation:

Using pythag theorem we can find the last side of the triangle, which is equal to 5 after we have this we simply add up the areas of each individual shape like (1/2*3*4)+(1/2*3*4)+(6*5)+(3*6)+(4*6)

6 0
3 years ago
Please help and please give explanation
Yuki888 [10]

Answer:

cylinder surface area = 201.06in²

surface area of cone = 56.56in.²

Step-by-step explanation:

cylinder surface area formula = 2πrh + 2πr²

refer the pic

cone surface area formula = πr ( r + √h² + r² )

refer the sec pic

surface area of the solid

= ( 201.06 + 56.56 ) in.²

= 257.62in.²

= 258in.²

4 0
2 years ago
Mathematics <br><br> Solving inequality
lions [1.4K]

Answer:

x _> 9 I dont have the symbol on my phone so I just put the greater than sign there

Step-by-step explanation:

1. Subtract 3 from both sides

5x > 48 - 3

2. simplofy 48 - 3 to 45

5x > 45

3. Divide both sides by 5

x > 45/5

4. Then simplify 45/5 to 9 which gives us the answer

And again I dont have the sign thats why I used the greater than sign

3 0
2 years ago
Which two functions are inverses of each other?
liraira [26]

Answer:

Option 3 - f(x)= 4x, g(x) = \frac{1}{4}x

Step-by-step explanation:

To find : Which two functions are inverses of each other?

Solution :

Two functions are inverse if f(g(x))=x=g(f(x))

Now, we find one by one

1) f(x)= x, g(x) = -x

f(g(x))=f(-x)=-x\neq x

Not true.

2) f(x)= 2x, g(x) = -\frac{1}{2}x

f(g(x))=f(-\frac{1}{2}x)=2\times(-\frac{1}{2}x)=-x\neq x

Not true.

3) f(x)= 4x, g(x) = \frac{1}{4}x

f(g(x))=f(\frac{1}{4}x)=4\times(\frac{1}{4}x)=x

g(f(x))=f(4x)=\frac{1}{4}\times 4x=x

i.e. f(g(x))=x=g(f(x)) is true.

So, These two functions are inverse of each other.

4) f(x)= -8x, g(x) =8x

f(g(x))=f(8x)=8\times(-8x)=-64x\neq x

Not true.

Therefore, Option 3 is correct.

6 0
3 years ago
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