Can you explain it and help me out please​

Answer:

y=4(1/2)

Step-by-step explanation:

Answer:

y = 8 × (½)^x

Step-by-step explanation:

y = a(b^x)

8 = a(b⁰)

a = 8

y = 8(b^x)

½ = 8(b^4)

1/16 = b⁴

b = ½

y = 8 × (½)^x

Answer:

comment when you get the picture and i will try to answer !

Step-by-step explanation:

Answer: He should have used the mean to determine the average because the data sets are approximately symmetric.

Step-by-step explanation

Answer:

B

Step-by-step explanation:

Step-by-step explanation:

A Tyler made mistake in the third step

B Tyler didi not multiply 4 by 6

C 9 - 20x + 24

- 20x + 15

-5 (4x - 3)

Tyler is using the distributive property on the expression 9 - 4(5x – 6).

His work

9 - 4(5x - 6)

9+(-4)(5x +-6)

9 +-20x +-6

3 – 20x

The distributive property states that an expression that is given in form of A (B + C) can be solved as A × (B + C) = AB + AC.

A . Tyler made mistake in the third step

B . Tyler did not multiply 4 by 6

C. Correct steps are,

9 - 4(5x - 6)

9+(-4)(5x +-6)

9 - 20x + 24

- 20x + 15

-5 (4x - 3)

To learn more about the distributive property visit:

https://brainly.com/question/1780105

Answer:

Distribution

Step-by-step explanation:

On the second step he distributed the 1/4 to x, but not to twelve.

Answer:

Andre made a mistake in the first part of the equation when he was distributing.

Step-by-step explanation:

He got the 1/4x but forgot to distribute to the 12 which would have gotten him 1/4x + 3

Answer:

A = bh, so the correct answer is A.

Answer:

Step-by-step explanation:

hello :

sin x + 2 sin x cosx = 0   equivalent to : sinx(1+2cosx) =0

sinx=0 means :  general solution is  : x= kπ....k in Z

1+2cosx=0  means : cosx= -1/2 general solution is : x= ±π/6+kπ...k in Z

The question seems to involve solving a trigonometric equation with an incomplete equation provided. It suggests the use of trigonometric identities and basic values of sin and cos at 0 degrees to simplify and solve trigonometric equations.

The question appears to be incorrectly phrased or incomplete. However, it seems to involve solving a trigonometric equation involving sine and cosine functions. To approach such equations, one common strategy is to use trigonometric identities to simplify the equation.

For instance the given expression sin x + 2 sin x cos x can be simplified using the double angle identity or factoring, allowing for easier solution. Yet, without a clear equation to solve or a specific value to find, it's challenging to provide a direct answer.

Solving trigonometric equations often requires understanding basic trigonometric functions like sin 0, which is 0, and cos, which is 1 at 0 degrees. These values are fundamental and help in simplifying equations to find solutions within a given domain, typically between 0° and 360° for high school mathematics problems.

Probability that a student will play both is 7/30

Step-by-step explanation:

Total students = 30

No. of students who play basketball = 18

Probability that a student will play basketball = 18/30

= 3/5

No. of students who play baseball = 9

Probability that a student will play baseball = 9/30

= 3/10

No. of students who play neither sport = 10

Probability that a student will play neither sport = 10/30

= 1/3

To find :

Probability that a student will play both = p(student will play both)

No.of students who play sport = 30 - 10

= 20

Out of 20 students 18 play basketball and 9 play baseball.

So, some students play both the sports.

No. of students who play both sports = 18 + 9 - 20

= 7

p(student will play both) = 7/30

Probability that a student will play both is 7/30

Answer:

7 to 5 or 7/5

Step-by-step explanation:

Answer:

10

Step-by-step explanation:

Step-by-step explanation:

The odds of seeing a black cat are 25% every day.

It also means that the possibility of seeing  a black cat is once in 4 days, since 25%

Given, we have not seen one black cat in 3 days.

The chance of seeing a black cat on the 4th day = ?

= 100 % since we have not seen it in the past three days.

Answer:

8,820

Step-by-step explanation:

One candle:

½ × 10 × 7 × 6

= 210 cm³

42 candles:

42 × 210

= 8,820 cm³

Answer:

8820 cm^3

Step-by-step explanation:

Volume of one prism = A(base prism)*height(prism)

A(base prism)= A(triangle) = 1/2*(base triangle)*Height(triangle)= 1/2*10*7 = 35 cm^2

Volume of one prism(or one candle) = A(base prism)*height(prism)= 35*6=210 cm^3

Volume of 42 candles = 210*42= 8820 cm^3

Answer:

its D. I, II, and III

Answer:

I, II, and III

Step-by-step explanation:

A set of data collected to answer a statistical question has a distribution which can be described by its center, spread, and overall shape.

Answer:

The frequency table is shown below.

Step-by-step explanation:

(i) Half of the tuna sandwich were on white bread = 21

On brown bread, tuna = 42 - 21 = 21

(ii) 25% of the ham sandwiches sold were on brown bread.

= 25% (32) = 8

On white bread, 32 - 8 = 24

Frequency table:

                     Tuna             Cheese          Ham         Total

Brown             21                     11                    8                40

White              21                     15                  24               60

Total                42                     26                 32              100

Answer:

7.07cm

Step-by-step explanation:

A=πr2

= 100 π

= 314.159265359/2 (squared)

50% = 157.07963268cm ^2

We look for radius in the area formula

A=πr2

(A / π ) = 157.07963268/ 3.14159265359 =  √50 = 7.07106781187

We do not need to half this as already has been squared.

Answer:

B.

Step-by-step explanation:

I'm assuming it's written like this when solving it:  [tex]9\frac{4}{5} x-\frac{4}{80} x[/tex]

first change the mixed number to an improper fraction and change to a common denominator

[tex]\frac{49}{5}x-\frac{4}{80}[/tex]  -----> [tex]\frac{784}{80} - \frac{4}{80}[/tex]

[tex]\frac{784}{80}x - \frac{4}{80}x = \frac{39}{4}x\\[/tex] ≈ [tex]9\frac{4}{5}x[/tex]

Answer:

14x² - 21

Step-by-step explanation:

In order to expand the expression, you simply need to multiply 7 by 2x², then by -3.

2x² × 7 = 14x²

-3 × 7 = -21

Therefore, the area of the entire rectangle is 14x² - 21 (you will not need to solve for x, as there is no way to do that without knowing the area first).

Answer:

0

Step-by-step explanation:

Answer:

The range of the data set listed above would be 0.

Step-by-step explanation:

Because there is no greatest or least number, then its just 0. Just to make sure you could enter your data set into www.calculator.net. When I entered it, it said 0 :)

Please vote me brainliest.

Answer:

6 cm

Step-by-step explanation:

Answer:

Follow steps 1, 2 and 3.

Step-by-step explanation:

What we must do we will follow in the following steps:

1. Draw a line and make 5 vertical marks about 1/2 inch.

2. Label the middle one 0 and then label the right ones zero 1 and 1.5.

3. Perform the same procedure from step two on the left but negative.

Answer:

1 3 /4

is equal to 1.75. I would plot 1.5 and 1.75 between 1 and 2, but 1.75 would be closer to 2. Since 1.75 is further to the right, it is greater than 1.5.

Step-by-step explanation:

Answer: height of the tower is 1064 feet

Step-by-step explanation:

We want to determine the height of the tower.

Assuming her line of sight of the top of the tower is a straight line, then a right angle triangle is formed. The height, h of the tower represents the opposite side of the triangle. Her distance from the foot of the tower represents the adjacent side of the triangle.

To determine h, we would apply the tangent trigonometric ratio which is expressed as

Tan θ = opposite side/adjacent side

Therefore,

Tan 85.7 = h/80

h = 80tan 85.7

h = 1064 feet

Answer:

The tower is 1063.97 feet.

Step-by-step explanation:

please see the attached files for details

To solve the equation I = v/r and show how R = v/l, we can rearrange the equation I = v/r to solve for r, which gives r = v/I. Then substitute v/l for I to get r = v/(v/l) = l. Therefore, R = l.

To solve for R = v/l, we can start by rearranging the equation I = v/r to solve for r. Multiply both sides of the equation by r to isolate it, which gives us I * r = v. Then divide both sides of the equation by I to solve for r, which gives us r = v/I. Now substitute v/l for I to get r = v/(v/l). Simplify the expression by multiplying the numerator and denominator by l, which gives us r = lv/v = l. Therefore, R = l.

https://brainly.com/question/17595716

#SPJ2

This shows how the original equation [tex]\( I = \frac{v}{r} \)[/tex]can be rearranged to solve for[tex]\( R \) (or \( r \))[/tex] in the form [tex]\( R = \frac{v}{I} \)[/tex]. It is important to note that in the context of physics, [tex]\( I \)[/tex] typically represents current, [tex]\( v \)[/tex]represents voltage, and [tex]\( R \)[/tex] represents resistance. The equation [tex]\( I = \frac{v}{r} \)[/tex] is Ohm's law, which relates the voltage, current, and resistance in an electrical circuit. The rearranged form [tex]\( R = \frac{v}{I} \)[/tex] is used to find the resistance when the voltage and current are known.

To solve the equation [tex]\( I = \frac{v}{r} \)[/tex] for [tex]\( R \)[/tex], we need to isolate [tex]\( R \)[/tex] on one side of the equation. Here are the steps to do so:

1. Start with the original equation:

[tex]\[ I = \frac{v}{r} \][/tex]

2. Multiply both sides of the equation by [tex]\( r \)[/tex] to eliminate the denominator:

[tex]\[ I \cdot r = v \][/tex]

3. Now, we want to solve for [tex]\( R \)[/tex], so we need to divide both sides of the equation by [tex]\( I \)[/tex] to isolate [tex]\( R \)[/tex] on one side:

[tex]\[ r = \frac{v}{I} \][/tex]

4. Notice that in the original equation, [tex]\( I \)[/tex] is used, but in the desired equation, [tex]\( R \)[/tex] is used. This seems to be a typo in the question, as [tex]\( I \)[/tex]and [tex]\( R \)[/tex] are likely meant to represent the same variable. Assuming [tex]\( I \)[/tex]and [tex]\( R \)[/tex] are the same, we can rewrite the equation as:

[tex]\[ R = \frac{v}{I} \][/tex]

5. Now, we have [tex]\( R \)[/tex] isolated on one side, which is the desired form of the equation.

Therefore, the final answer, assuming [tex]\( I \)[/tex] and [tex]\( R \)[/tex] represent the same variable, is:

[tex]\[ \boxed{R = \frac{v}{I}} \][/tex]

Step-by-step explanation:

12+6x-9+4

6x+7

option B

Answer:

6x + 7

Step-by-step explanation:

Let's simplify step-by-step.

12 + 3(2x−3) + 4

Distribute:

=12 + (3)(2x) + (3)(−3) + 4

=12 + 6x + −9 + 4

Combine Like Terms:

=12 + 6x + −9 + 4

=(6x) + (12 + −9 + 4)

=6x + 7

Answer:

he has 11.4 dollars left

Step-by-step explanation:

54.26+34.34=88.6

100-88.6=11.4

Answer:

11.40

Step-by-step explanation:

I did the math.

54.26+34.34=88.6

100-88.6=11.40

Answer:

Step-by-step explanation:

No because the quadratic form is ax^2 + bx + c = 0. The equation,  xº -5x + 6 = 0, is not in quadratic form because xº is not x^2, yet the rest of the equation follows the quadratic equation template.

Answer:9x

Step-by-step explanation: u would just do 27-18

Answer:hey there

Step-by-step explanation:

Answer:

Here is the complete question:

The ratio of the number of dogs to the number of cats is 4:5. There are 270 animals on the rescue farm. for each of the following statements, explain whether statements is true or false and why:

a. The number of dogs is 4/5 the number of cats.

b. 4/5 of the pets at the farm are dogs.

c. There are exactly 30 more cats than dogs.

d. There are exactly 30 dogs at the farm.

e. 5/9 of the pets at the farm are cats.

a,c and e are true statements.

Step-by-step explanation:

Let the number of dogs be "d' and number of cats be "c".

According to the question:

⇒ [tex]c+d=270[/tex]   ...equation (i)

Arranging the ratio:

⇒ [tex]\frac{4}{5} = \frac{d}{c}[/tex]

⇒ [tex]4c=5d[/tex]

⇒ [tex]c=(\frac{5}{4})d[/tex]    ...equation (ii)

Plugging (ii) in equation (i).

⇒ [tex]c+d=270[/tex]

⇒ [tex]\frac{5}{4} d+d=270[/tex]

⇒ [tex]\frac{5d+4d}{4} =270[/tex]

⇒ [tex]9d=270\times 4[/tex]

⇒ [tex]d=\frac{270\times 4}{9}[/tex]

⇒ [tex]d=120[/tex]

Number of dogs "d" = 120

Number of cats "c" = (270-120) = 150

Lets check each statement:

a.

The number of dogs is 4/5 the number of cats.

⇒ [tex]\frac{4}{5} \times 150[/tex]

⇒ [tex]\frac{4\times 150}{5}[/tex]

⇒ [tex]120[/tex]

Statement is true.

b.

4/5 of the pets at the farm are dogs.

⇒ [tex]\frac{4}{5} \times 270[/tex]

⇒ [tex]216[/tex]

Number of dogs = 120

So the above statement is false.

c.

There are exactly 30 more cats than dogs.

⇒ [tex]c-d =30[/tex]

⇒ [tex]150-120=30[/tex]

Statement is true.

d.

There are exactly 30 dogs at the farm.

False, as there are 120 dogs

e.

5/9 of the pets at the farm are cats.

⇒ [tex]\frac{5}{9} \times 270[/tex]

⇒ [tex]150[/tex]

Statement is true.

So,

Statement  a,c and e are true as we could observe in the explanation.