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kaheart [24]
3 years ago
9

I don’t understand none of this math

Mathematics
2 answers:
Elena-2011 [213]3 years ago
7 0

Answer:

Step-by-step explanation:

\frac{a^3-b^3}{5} =\frac{2^3-(-3)^3}{5} =\frac{8-(-27)}{5} =\frac{8+27}{5} =\frac{35}{5} =7

Ivan3 years ago
4 0

Answer:

6

Step-by-step explanation:

(a^3 - b^3)/5

Let a =2 and b = -3

(2^3 -  (-3)^3)/5

Exponents inside the parentheses

(8 - -27)/5

Subtracting a negative is like adding

(8+27)/5

Finish adding inside the parentheses

35/5

Divide

7

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Consider the number line with the plotted square roots.
ZanzabumX [31]

Answer: 19 Startroot and 24 endroot

Step-by-step explanation:

8 0
3 years ago
Define four symbolic constants that represent integer 25 in decimal, binary, octal, and hexadecimal formats
stealth61 [152]

Answer:

1) Decimal    25= (25)_{10}

2) Binary    25= (11001)_2

3) Octal   25= (31)_8

4) Hexadecimal   25= (19)_{16}

Step-by-step explanation:

Given : Integer is 25                      

To find : Represent integer in decimal, binary, octal, and hexadecimal formats.

Solution :

1) Integer into decimal - To convert into decimal the base goes to 10.

So, 25= (25)_{10}

2) Integer into binary - To convert into binary the base goes to 2, it form in 0 and 1 and we divide integer by 2.

Divide 25 by 2 and note down the remainders.

2 | 25

2 | 12    R=1    ←

2 | 6     R=0   ↑

2 | 3      R=0  ↑

2 | 1  →   R=1   ↑

So,   25= (11001)_2

3) Integer into octal - To convert into octal the base goes to 8 and we divide integer by 8.

Divide 25 by 8 and note down the remainders.

8 | 25

  | 3 →   R=1    

So,   25= (31)_8

4) Integer into hexadecimal - To convert into hexadecimal the base goes to 16 and we divide integer by 16.

Divide 25 by 16 and note down the remainders.

16 | 25

   | 1 →   R=9    

So,   25= (19)_{16}

3 0
4 years ago
Find the volume of the cylinder, Round your answer to the nearest tenth if necessary. Use
Tom [10]

Answer:

V≈706.86

Step-by-step explanation:

V=πr2h ( formula for volume of a cylinder)

6 0
3 years ago
Advanced Trigonometry please help!!!!!
labwork [276]

Answer:

i) Area = 25 m²

ii) slope of roof = 36.87°

Step-by-step explanation:

(i)  Let the midpoint of AB = M

Find BC by using Pythagoras' Theorem:  a² + b² = c²

(where a and b are the legs, and c is the hypotenuse of a right triangle)

Legs = MB and MC, hypotenuse = BC

⇒ 1.5² + 2² = BC²

⇒ 6.25 = BC²

⇒ BC = √(6.25) = 2.5

Area of a rectangle = width x length = BC x BE

⇒ area of BCFE = 2.5 x 5 = 12.5

⇒ area of ACFD = area of BCFE = 12.5

Therefore area covered by tiles = 12.5 + 12.5 = 25 m²

ii)

The angle of the slope of the roof will be angle ∠B of the right triangle ΔCMB.

Using sin(A)/a = sin(B)/b = sin(C)/c

sin(90)/2.5 = sin(B)/1.5

0.4 = sin(B)/1.5

0.6 = sin(B)

∠B = 36.87°

3 0
2 years ago
What is the slope of the line represented by the following equation? 4x−y+3=0
Dmitrij [34]

The slope of the line which is represented by the provided equation 4x-y+3=0 is the number 4.

<h3>What is the slope of a line?</h3>

The slope of a line is the difference in the height of the y coordinates and the difference in the width of the coordinates. It describes the direction of the line.

The standard form of the equation of a line can be given as,

y=mx+c

Here, c is the y intercept of the line and m is the slope of the line.

The equation of the line is given as,

4x-y+3=0

Rewrite the equation in the standard form as,

4x-y+3=0

4x+3=y

y=4x+3

Compare it with standard equation we get,

m=4

c=3

Thus, the slope of the line which is represented by the provided equation 4x-y+3=0 is the number 4.

Learn more about the slope of a line here;

brainly.com/question/11693181

#SPJ1

7 0
2 years ago
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