» Which ratios have a unit rate of 4? Choose ALL that apply.

Answer:

31.42

Step-by-step explanation:

radius= half diameter

circumfrence= 2pi*r

you would do pi times 5

Answer:

give more points i might

Step-by-step explanation:

WILL

Answer:

−269

Step-by-step explanation:

Answer:

Angle 1 - 88 degrees

Angle 2- 42 degrees

Angle 3 - 113 degrees

please mark my answer brainliest

Answer:

6

Step-by-step explanation:

But not too sure tho make sure of it

Answer:

how do you want me to help you with

Step-by-step explanation:

Answer:

-5.30

Step-by-step explanation:

The z-statistic of the Brett's data is -5.30

The formula for the test statistic depends on whether the population standard deviation (σ) is known or unknown. If σ is known, our hypothesis test is known as a z test and we use the z distribution

The standard deviation is a measure of the amount of variation or dispersion of a set of values.

Mean is the average of the given numbers and is calculated by dividing the sum of given numbers by the total number of numbers.

Given,

Population Mean = 310

Standard deviation = 20

Sample data mean =  295

Sample size =50

z-statistic = (Sample data mean - Population mean) / (Standard deviation /[tex]\sqrt{sample size}[/tex])

z-statistic = [tex]\frac{295-310}{20/\sqrt{50} } =-5.30[/tex]

Hence, the z-statistic for Brett's data is -5.30

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Answer:

??? I don't quite understand pls explain better

Step-by-step explanation:

Answer:

f(0) = 3

Step-by-step explanation:

f(0) = -3(0-1)

f(0) = -3(-1)

f(0) = 3

Answer:

Barry: g(x) = 50 + 30x

Larry: f(x) = 90 + 20x

If Locksmith Larry charges $90 for a house call plus $20 per hour. Locksmith Barry charges $50 for a house call plus $30 per hour. Then f(x)=90+20x is one-variable equation for the charges of locksmith Larry

Two or more expressions with an Equal sign is called as Equation.

Given,

Locksmith Larry charges $90 for a house call plus $20 per hour

f(x) represents this situation

f(x) equal to ninety plus twenty times of x

f(x)=90+20x

Locksmith Barry charges $50 for a house call plus $30 per hour

g(x)  represents this situation

g(x) equal to fifty plus thirty times of x

g(x)=50+30x

Here x represents the number of hours

Hence f(x)=90+20x is the one-variable equation for the charges of locksmith Larry

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9514 1404 393

Answer:

  B

Step-by-step explanation:

If you remove the variables and the equal signs from the equations and put brackets around what is left, you have the matrix that represents the equations:

  [tex]\left[\begin{array}{ccc}3&-2&12\\4&-1&9\end{array}\right] \qquad\textbf{matches B}[/tex]

_____

Additional comment

You need to be sure the variables are in the same order in both equations, as they are here. If there are equations with missing variables, you need to use a zero (0) coefficient in the missing variable's location.

Answer:

x ≤ 100

Step-by-step explanation:

You need to get the x on one side by itself. Because the x is being divided by -4, you need to multiply -4 by -25. This way, x will be by itself on the left side, and on the right side, you will get 100 after multiplying -4 x -25. You have to flip the greater than or equal symbol because you are bringing a negative number over the sign to the other side.

Answer:

JL = 16sqrt(2) units or 22.627417 units

Step-by-step explanation:

A square has 4 equally long sides, making all the sides 16 units long.

For a square with side S, the length of the square's diagonal is D=S*sqrt(2), therefore the length of the diagonal is 16sqrt(2) units or 22.627417 units

Answer:

Turn 2.1 into a whole number by multiplying it by 10.

Step-by-step explanation:

The first step is to turn the divisor into a whole number. The divisor is 2.1. 2.1 x 10 = 21.

Answer:

The correct answers are 0°, 120°, and 240°

Answer:

a, b , e

Step-by-step explanation:

on edge

Answer:

Step-by-step explanation:

The chosen topic is not meant for use with this type of problem. Try the examples below.

Answer:

The third answer

Step-by-step explanation:

1,30  2,60  3,90, and if you keep going, 4,120  5,150

I hope this helps.

Answer:

4 hours

Step-by-step explanation:

Given that:

Initial height of red candle = 8 inches

Rate of burning of red candle = [tex]\frac{7}{10}\ inch/hr[/tex]

Initial height of blue candle = 6 inches

Rate of burning of blue candle = [tex]\frac{1}{5}\ inch/hr[/tex]

To find:

Time taken in hours such that both the candles have the same height.

Solution:

Let the time taken such that both the candles have the same height = [tex]t[/tex] hours

Height of red candle after [tex]t[/tex] hours = [tex](8 - \frac{7}{10}t) \ inches[/tex]

Height of blue candle after [tex]t[/tex] hours = [tex](6 - \frac{1}{5}t) \ inches[/tex]

Writing both the expressions as equal:

[tex]8-\dfrac{7}{10}t=6-\dfrac{1}{5}t\\\Rightarrow 8-6=\dfrac{7}{10}-\dfrac{1}{5}t\\\Rightarrow 2 = (\dfrac{7-2}{10})t\\\Rightarrow \dfrac{5t}{10}=2\\\Rightarrow t=4\ hours[/tex]

After 4 hours, height of both the candles will be same.

Answer:

slope = -3; y-intercept = 1/2

Step-by-step explanation:

A way to solve this problem would be to write equations based off of the answer choices on the right, plug the x and y values from the chart into those equations, and see if they are true.

Let's look at the third option choice. Given that the slope = -3 and the y-intercept is 1/2, we can write an equation using the slope-intercept format, y= mx + b, where m is the slope and b is the y-intercept. So, the equation for that would be y= -3x + 1/2.

Let's try plugging in some x and y values and testing if they are true. Let's take the point [tex](-1, 3\frac{1}{2} )[/tex] from the chart for example:

[tex](3\frac{1}{2}) = -3(-1) + \frac{1}{2} \\(3\frac{1}{2}) = 3 + \frac{1}{2} \\3\frac{1}{2}= 3\frac{1}{2}[/tex]

So, since [tex]3\frac{1}{2}[/tex] does equal to [tex]3\frac{1}{2}[/tex], it is true, making that the correct answer. You could plug in any other point from the chart to check, too - it's good to check multiple, but for the sake of brevity, I just put that as one example.

Answer:

6.67 seconds

Step-by-step explanation:

Benny = 15 - 0.5s

Juan = 10 + 0.25

Where,

s = number of seconds

Equate

15 - 0.5s = 10 + 0.25s

15 - 10 = 0.25s + 0.5s

5 = 0.75s

s = 5/0.75

= 6.66667 seconds

Approximately 6.67s

Answer: Train 2 is traveling 4 miles per hour faster than train 1.

Hope this helps..... Stay safe and have a Merry Christmas!!! :D

Answer:

number 3 is a function, the other one is not a function.

the range for number 2 is -2,0,2,4 and for number 3 the rage is 0,1,2,3

Answer:

fffff

Step-by-step explanation:

hhjvgyhghhggggggggggggghhh

Answer:

For increasing order: 6

For decreasing order:7

Step-by-step explanation:

Case (1):

When the four digits are the consecutive integers in increasing order, then the possible digits at the thousands place (digit 4) are 1,2,3,4,5, and 6.

The numbers formed are 1234, 2345, 3456, 4567, 5678, and 6789.

Therefore, there are 6 four-digit positive integers for increasing order of consecutive digit.

Note that 0 can't be placed at the thousands place to get a four-digit integer.

Case(2):

When the four digits are the consecutive integers in decreasing order, then the possible digits at the unit place (digit 1) are 0, 1,2,3,4,5, and 6.

The numbers formed are 3210, 4321, 5432, 6543, 7654, 8765, 9876.

Therefore, there are 7 four-digit positive integers for decreasing order of consecutive digit.

Answer:

Step-by-step explanation:

7.66

Answer:

$324

Step-by-step explanation:

it earn 8% interest each year how much at the end of year 1,

to calculate this you multiply 300 by 108% = 300 x 1.08 = 324

Answer: the answer is 0.5 inch(es)

Step-by-step explanation:

correct me if i’m wrong

The depth in inches just before snow begins to melt is 7 inches. The correct option is B.

Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Given that the depth of snow melting on a sidewalk changes over time. The equation below represents the depth (d) in inch(es) as time (t) passes is d = -0.5t +7.

The depth at the beginning is calculated by putting the value of t = 0. At the initial period, the time is zero.

d = -0.5t +7.

d = ( 0.5 x 0 ) + 7

d = 7 inches

Therefore, the depth in inches just before snow begins to melt is 7 inches. The correct option is B.

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Answer:

160.12^2

Step-by-step explanation: