please help me with math

Answer:

251.2 units³ ; 80π units³

Step-by-step explanation:

Volume of a Cylinder is: [tex]V=\pi r^2 h[/tex]

'r' is the radius.

'h' is he height.  

The cylinder has a base radius of 4 units and the height 5 units.

[tex]V=3.14*4^2*5\\V=3.14*16*5\\V= 50.24 * 5\\\boxed {V=251.2}[/tex]

The approximate volume is 251.2 units³.

[tex]V=\pi 4^2*5\\\rightarrow 4^2=16\\V=\pi 16*5\\V=\pi 80\\\boxed {V=80\pi}[/tex]

The exact volume is 80π units³.

Answer: 5^2

Step-by-step explanation:

Since the base are all the same, you will add the exponents and let the exponents stay the same.

5^3  * 5^4= 5^7 * 5^-5= 5^2

Answer:

25

Step-by-step explanation:

Using the rule of exponents

[tex]a^{m}[/tex] × [tex]a^{n}[/tex] ⇔ [tex]a^{(m+n)}[/tex]

The rule can be extended to include more than 3 terms.

Given

5³ × [tex]5^{4}[/tex] × [tex]5^{-5}[/tex]

= [tex]5^{(3+4-5)}[/tex]

= 5²

= 25

Hello there!

1. The theoretical possibility of spinning every number out of the 200 spins is approximately to the nearest whole number: 16 times. We found that by dividing 200 by 12 to see how many of each number could fit in 200. 200 divided by 12 equals 16.666 but we can't spin a number 16.6 times so we have to round it to the nearest whole number that stays in the range of 200.

2.

i. The experimental probability of spinning a 1 is 20/200 or 1/10.

ii. The experimental probability of spinning an 8 is 30/200 or 3/20.

iii.  The experimental probability of spinning an 11 is 2/200 or 1/100.

3.  The numbers on the spinner that has a greater experimental probability than the theoretical probability is: 1,2,5,6,8, and 9.

Experimental probabilities:

2: 18/200 or 9/100

5:  17/200

6:  26/200 or 13/100

9:  18/200 or 9/100

Answer:

Should be 4/10

Step-by-step explanation:

If you add all the marbles up you get the total/denominator of 10. Then you find the fraction for orange marbles which is 2/10. Then the green, 2/10. Add the numerators and keep the denominator the same.

Answer:there are many ways you can use it. We used it this way. (8&1)(4&5)(9)(6&3)(7&2)

Step-by-step explanation:

The middle number using 9 like I did. You need all the other powers to add to 9 together. For example 8+1=9, 4+5=9,6+3=9 and 7+2=9

Answer: 55.5 (A.)

Step-by-step explanation:

Since angle A = 29 and angle B = 41, angle C must be equal to 110

180 = m<A + m<B + m<C

180 = 29 +41 + m<C

180 = 70 + m<C

110 = m<C

Therefore, side c must be the longest, side b must be the second longest, and side a must be the shortest.

Since side length a, angle A, and angle B are known, one can use the law of sines to solve for side b.

Law of Sines: sinA/a = sinB/b = sinC/c

sinA/a = sinB/b

sin29/41 = sin41/b

b(sin29/41) = sin41

b = 41(sin41)/(sin29)

b = 55.48

b = 55.5

Answer:

the 'questions' that you have posted are the answers for the questions above

Step-by-step explanation:

Steps to solve:

x - 1 ≥ 8

~Add 1 to both sides

x - 1 + 1 ≥ 8 + 1

~Simplify

x ≥ 9

Best of Luck!

Answer: 1/35

Step-by-step explanation:

From the question, in a group that has 35 pupils, 11 of the pupils play flute only, 8 play the piano only and 15 play neither instrument.

The probability that a student plays both instruments will be:

Since a third instrument is not mentioned, P(a randomly selected student plays the flute and the piano)

35-15=20,

This is the total students minus the students that play neither instruments.

We then subtract those that play flute only and those that plays piano only from 20. This will be:

20-11-8 = 1

Probability (a student plays both instrument) = 1/35

Answer:

A

Step-by-step explanation:

solution is A.

A relation is a function if no x value gives two or more values of y though different values of x may give same value of y.

Answer:

24

Step-by-step explanation:

I will assume this is a right triangle with the information given

a^2+b^2 = c^2 is the Pythagorean theorem

18^2 + b^2 = 30^2

Subtract 18^2 from each side

18^2  - 18^2+ b^2 = 30^2 -18^2

b^2 =900 -324

b^2 =576

Take the square root of each side

sqrt(b^2) = sqrt(576)

b =24

Answer:

gggg

Step-by-step explanation:

bfdrfgnhtrh

Answer:

Change in Y over change in X. So down 8 and over 2. Simplified it would be 4/1

Answer:

≈ 113.1 in³

Step-by-step explanation:

The figure comprises of a cylinder and a cone.

Total volume is:

Answer:

13) x=5

14) x=70

16) x=42

Step-by-step explanation:

Couldn't read 15 sorry

Answer:

line symmetry & rotational symmetry

Step-by-step explanation:

First given graphs of functions are symmetric about the y-axis while the second is not symmetric about any axis.

If two figures look an exact shape but their size could be small or big then both figures are called similar figures.

When anything has identical pieces facing one another or revolving around an axis, it is said to be symmetrical.

For example, a square with a side of 10 cm and another with a side of 20 cm both square will be similar.

Given two graph of the  any function.

If we look at first graph ;

If we fold it about the y-axis then it will be overlapped so it will be symmetric about the y-axis.

Now,

In the second graph; If we want to fold two portions of this graph such that both parts can overlap each other then it is not possible so it will not symmetric about any axis.

Hence "First given graphs of functions are symmetric about the y-axis while the second is not symmetric about any axis".

To learn more about symmetry,

https://brainly.com/question/1597409

#SPJ2

The given question has missing an image, image has been attached

Answer:

Step-by-step explanation:

The solution of this systems of equations is the intersection of both graphs

Let's kick start with a:

a)

[tex]y+12 = x^2+x \\ \\ x+3 = y[/tex]

From the first attached diagram by using graph:

the solution is the set {(-5, 8), (3, 0)}

b)

[tex]y-15=x^3+4x \\ \\ x-y =1[/tex]

Using the graph tool from the last diagram below;

the solution is the set⇒( there is no solution)

c)

[tex]y+5 =x^2-3x \\ \\ 2x+y =1[/tex]

From the second attached diagram by using graph:

the solution is the set {(-2, 5), (3, -5)}

d)

[tex]y-6=x^2-3x \\ \\ x+2y =2[/tex]

the solution is the set ⇒ there is no solution (shown in the last diagram  below)

e)

[tex]y-17=x^2-9x \\ \\ -x+y =1[/tex]

the solution is the set {(2, 3), (8, 9)} as shown in the third diagram

f) Lastly:

[tex]y-15=-x^2+4x \\ \\ x+y =1[/tex]

Using the graph tool from the fourth diagram below;

the solution is the set  {(-2, 3), (7, -6)}

The solution to the system of equations are the truth values of the system of equations

[tex]\mathbf{(a)\ y + 12 = x^2 + x,\ x + 3 = y}[/tex]

The graphs of the equations intersect at (-5,8) and (3,0).

So, the solution set is {(-5,8), (3,0)}

[tex]\mathbf{(b)\ y - 15 = x^3 + 4x,\ x - y = 1}[/tex]

The graphs of the equations do not intersect

So, the system has no solution

[tex]\mathbf{(c)\ y + 5 = x^2 - 3x,\ 2x + y = 1}[/tex]

The graphs of the equations intersect at (-2,5) and (3, -5).

So, the solution set is {(-2, 5), (3, -5)}

[tex]\mathbf{(d)\ y - 6 = x^2 - 3x,\ x + 2y = 2}[/tex]

The graphs of the equations do not intersect

So, the system has no solution

[tex]\mathbf{(e)\ y - 17 = x^2 - 9x,\ -x + y = 1}[/tex]

The graphs of the equations intersect at (2,3) and (8,9).

So, the solution set is {(2, 3), (8, 9)}

[tex]\mathbf{(f)\ y - 15 = -x^2 + 4x,\ x + y = 1}[/tex]

The graphs of the equations intersect at (-2,3) and (7,-6).

So, the solution set is {(-2, 3), (7, -6)}

Read more about system of equations at:

https://brainly.com/question/12895249

Answer:

Yes, it's a right triangle.

Step-by-step explanation:

Use a^2 + b^2 = c^2

10^2 + 12.49 ^2 (its 2 39 square root) = 16^2

100 + 156 = 256

256 = 256

It ended up being equal to one another so yes, it is a right triangle.

Answer:

As shown in picture, here is a triangular pyramid whose volume is calculated by:

V = (1/3) x base area x height

  = (1/3) x 20 x 30 x (1/2) x 27

  = (20 x 30 x 27)/(2 x 3)

Hope this helps!

:)

Answer:

Step-by-step explanation:3,360 is your answer

Answer:

840

Step-by-step explanation:

280/4 =

70

(70)(12)

840

brainliest pls?

Answer:

mode is 6

Step-by-step explanation:

it appears four times whereas no other number appears more than three times

Answer:

The value of f(3) = 28.26

Step-by-step explanation:

You have to do is to substitute r = 3 into the function :

[tex]f(r) = 3.14 \times {r}^{2} [/tex]

[tex]f(3) = 3.14 \times {3}^{2} [/tex]

[tex]f(3) = 3.14 \times 9[/tex]

[tex]f(3) = 28.26[/tex]

Answer:

The answer is D.

Step-by-step explanation:

Edge

Answer:

C, I believe!

The functions shows the absolute value parent function, F(x) = |x|, vertically stretched is C. G(x) = |x + 14|

The absolute value function is defined by the following piecewise rule, depending on the input of the function:

|x| = x, x ≥ 0.

|x| = -x, x < 0.

This can be measures the distance of a point x to the origin, hence, for example, |-2| = |2| = 0, and has vertex(turning point) at (0,0). The range is from the y-coordinate of the vertex to positive infinity.

Vertex (2, 0), Range: {y | 0 ≤ y < ∞}

The parent absolute value function is F(x) = |x|,

If this function is stretched vertically, then the stretched function is of the form.

G(x) = |x + a|

where 0<a<1

Therefore the correct option is C. G(x) = |x + 14|

More can be learned about functions a;

brainly.com/question/24808124

#SPJ2

Answer:

40 percent

Step-by-step explanation:

covert fraction 4 out of ten is 40 %

Answer:

40%

Step-by-step explanation:

A percentage is basically x/100.

Therefore, if we convert Siobhan's mark into a fraction, we get 4/10. Then, by converting the fraction to fit x/100, we get 40/100 (remember, we must do the same to both the numerator and the denominator, so in this case it's multiply them by 10). Now that we have x, we can fit that into the answer to get 40%.

Answer:

.58 miles/minute

Step-by-step explanation:

56 kilometers/hour * 0.621371 miles/kilometer * 1 hour/60 minutes

= .58 miles/minute

Answer:

Step-by-step explanation:

Whats yo ig???

Answer:

[tex]a) - 6a + 70 - 11b[/tex]

[tex] b) - 17a - b[/tex]

Step-by-step explanation:

[tex]7a + 70 - 13a - 11b \\ 7a - 13a + 70 - 11b \\ = - 6a + 70 - 11b[/tex]

[tex] - 5a - 12a + 2b - 3b \\ = - 17a - b[/tex]

hope this helps

brainliest appreciated

good luck! have a nice day!

The temperature rose, which means it increased. An increase is a positive value, so add a plus sign in front of the number: +4

A decrease is a negative value, so add a negative sign in front of the value: -19

Answer:

30

Step-by-step explanation:

correct me if I'm wrong

But i believe adding up the sides will give you 30

Answer:

23.6

Step-by-step explanation:

23.6

Answer:

what is the picture?

Step-by-step explanation: