Answer:
= -7
Step-by-step explanation:
given x = 4
12/4 = 3
4 - 3 - 8 = -7
anyone understands this?
Answer:
4x+6
Step-by-step explanation:
i am pretty sure 4x+2
9
Calculate the square root of 9 and get 3.
4x+2×3
Multiply 2 and 3 to get 6.
4x+6
what is the y-intercept of this line y= x/5-12
Answer:
(0, -12)
Step-by-step explanation:
The y-intercept of a line can be found when taking x = 0.
Therefore,
y = 0 - 12y = -12The y-intercept of the line is (0, -12)
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[tex]\diamond\large\blue\textsf{\textbf{\underline{\underline{Question:-}}}}\diamond[/tex]
◈ What is the y-intercept of the line, [tex]\bold{y=\dfrac{x}{5} -12}\textit{?}[/tex]
[tex]\diamond\large\blue\textsf{\textbf{\underline{\underline{Answer and how to solve:-}}}}\diamond[/tex]
◈ Here's a shortcut to find the y-intercept.
Here's the equation:-
[tex]\large\textbf{y=x/5-12}[/tex]
[tex]\square\!\!\!\!\!\!\triangle[/tex] The y-intercept is a negative or positive constant that's added to or subtracted from the slope.
Constant:- A number with no variables next to it (for example, in the expression d-12, -12 is the constant)
So we conclude that
[tex]\Huge\textit{The y-intercept is -12}[/tex].
The y-intercept is usually written as (0, -12).
Good luck.- -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
don't have to answer all just at least 1 pls and write yes if the statement is a proportion or no if it is not a proportion.
2:3 = 9:4
3/8 = 12/32
10/12 = 20/25
4/9 = 17/38
Answer:
3/8 = 12/32 is a proportion
Step-by-step explanation:
2:3 and 9:4 is not a proportion, 10/12 and 20/25 is not a proportion, 4/9 and 17/38 is not a proportion
Determine the intervals on which f(x) is x>0 and on which f(x) is x<0.
f(x)=x^5+x^4-3x^3-3x^2-9x-9
Answer:
f(x) > 0 for (-2.203, -1) U (2.203, ∞)f(x) < 0 for (-∞, -2.203) U (-1, 2.203)Step-by-step explanation:
A graph shows real zeros at ±2.203 and -1. The value of f(x) changes sign at each of these.
The positive leading coefficient indicates the graph trends generally upward, so the function will be positive in intervals with an even number of zeros to the right.
f(x) positiveThere are an even number of zeros to the right of x = 2.203 and the interval (-2.203, -1).
f(x) is positive in the intervals (-2.203, -1) or (2.203, ∞).
f(x) negativeThe function will be negative where it is not positive (except at the zeros)
f(x) is negative in the intervals (-∞, -2.203) or (-1, 2.203).
_____
Additional comment
The graph shows the only rational real root of the function is x=-1. Using synthetic division to reduce the polynomial, we find ...
f(x) = (x +1)(x^4 -3x^2 -9)
The remaining factor is a quadratic in x^2, which has roots ...
x = ±√(1.5 ±√11.25)
The real roots are approximately ±2.20320266118. The value 2.203 used above is a stand-in for the exact value √(1.5 +√11.25)).
Mrs. Smith gave two classes the same quiz. She randomly selected 5 students from each class to compare the classes. The scores of the five students are shown below. Class A: 80, 82, 74, 92, 94 Class B: 82, 80, 88, 86, 82
What are the mean and range for each class ?
Class A- mean = 84.4 range = 14
Class B - mean = 83.6. range = 8
Using the information found in the question above which class mrs smith report had the more consistent performance on the unit test ?, explain what this means in terms of the situation
The mean and range for class A are 84.4 and 20 while the mean and range for class B are 83.6 and 8. Class B is more consistant then class A.
How to calculate the mean?We can see from the data that the consistency of class B is more becuase the repeatation of the same score is more in class B then class A and the range of class B is also less then the class A.
It should be noted that mean simply means average. It's the addition of the numbers divided by the total numbers.
In this case, the computation will be:
Class A: Mean = 422/5= 84.4.
Range: 94-74 = 20
Class B: Mean = 418/5 = 83.6.
Range= 88-80 = 8
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What is the answer?
.......................................................
An expression is defined as a set of numbers, variables, and mathematical operations. The expressions can be arranged as shown below.
What is an Expression?In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.
According to the number of terms, the expressions can be arranged as,
Hence, the expressions can be arranged as shown above.
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A right rectangular prism has these dimensions:
Length − Fraction 1 and 1 over 2 units
Width − Fraction 1 over 2 unit
Height − Fraction 3 over 4 unit
How many cubes of side length Fraction 1 over 4 unit are required to completely pack the prism without any gap or overla
find cos 2x if sin x= 5/13 and x is in quadrant 2
Answer:
cos(2x) = [tex]\frac{119}{169}[/tex]
At the fast food restaurant, an order of fries costs $1.05 and a drink costs $1.07. How much would it cost to get 3 orders of fries and 4 drinks? How much would it cost to get ff orders of fries and dd drinks?
Total cost, 3 orders of fries and 4 drinks:
Total cost, ff orders of fries and dd drinks:
Answer:
$7.43
Step-by-step explanation:
f (fries) = 1.01
d (drinks) = 1.07
1.05f + 1.07d = ?
To solve this problem, you need to replace the variable with the amount of each item.
1.05(3) + 1.07(4) = ?
Now we can solve by multiplying and adding:
3.15 + 4.28 = ?
7.43
What is the perimeter of a triangle with sides 11 inches, 6 inches, and 13 inches in length? 11 6 A 19 inches 28 inches C 30 inches 17 inches 13 B
Answer:
The answer is C
Step-by-step explanation:
The explanation is to add all the sides together and then get your answer
A personal trainer determines that an individual will get the most benefit from a workout if they keep their heart rate at an average of 150 beats per minute during workouts. To determine if the individual is doing so successfully, a random sample of 30 workouts is selected from their fitness watch. A 95% confidence interval for these workouts reveals that the true mean heart rate while working out is between 158 and 167 beats per minute. Based upon this interval, what conclusion should be made about the hypotheses: H Subscript 0 Baseline: mu = 150 versus H Subscript alpha Baseline: mu not-equals150 where μ = this individual’s true mean heart rate during working out at α = 0.05?
Reject H0. There is convincing evidence that the mean heart rate from these 30 workouts differs from 150.
Reject H0. There is convincing evidence that this individual’s true mean heart rate while working out differs from 150.
Fail to reject H0. There is not convincing evidence that the mean heart rate from these 30 workouts differs from 150.
Fail to reject H0. There is not convincing evidence that this individual’s true mean heart rate while working out differs from 150.
Using the confidence interval, it is found that the correct conclusion regarding the hypotheses test is given by:
Reject H0. There is convincing evidence that this individual’s true mean heart rate while working out differs from 150.
What are the hypotheses tested?At the null hypotheses, it is tested if the mean is of 150, that is:
[tex]H_0: \mu = 150[/tex]
At the alternative hypotheses, it is tested if the mean is different of 150, hence:
[tex]H_0: \mu \neq 150[/tex].
The confidence interval is (158, 167). Since it does not contain 150, we reject the null hypotheses, hence the correct option is:
Reject H0. There is convincing evidence that this individual’s true mean heart rate while working out differs from 150.
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Each horse ride lasts 5 minutes with 1 minute pause in between the next ride. After every hour and a half the horse are given a rest. How many children can get a opportunity to ride a horse before they rest
The 15 children get an opportunity to ride a horse before they rest if the horse ride lasts 5 minutes with a 1-minute pause in between the next ride. After every hour and a half, the horse is given a rest
What is a linear equation?It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.
If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.
We have:
Each horse ride lasts 5 minutes, with a 1-minute pause in between the next ride. After every hour and a half, the horse is given a rest.
Let's assume the number of children that rides the horse is x
Then we can frame a linear equation in one variable:
5x + 1x = 60+30 (After every hour and a half, the horse is given a rest.)
After solving we get:
6x = 90
x = 15 rides
Thus, the 15 children get an opportunity to ride a horse before they rest if the horse ride lasts 5 minutes with a 1-minute pause in between the next ride. After every hour and a half, the horse is given a rest
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simplify. a^7/a^3 Its a fraction that needs to be simplified
Answer:
= a^4
Step-by-step explanation:
. a^7/a^3
= a^4
identify each expression that represents the slope of a tangent to the curve y=1/(x+1) at any point (x,y).
Answer:
Step-by-step explanation:
lim 1 / (x + h +1) - 1 (x + 1)
x--> 0
lim -h/ (x + h +1)(x + 1)
x--> 0
lim -h/ (x^2 + 2x + hx + h + 1)
x--> 0
-1/ (x^2 + 2x + 1)
PLS HELP THIS IS MY LAST QUESTION I NEED THIS DONE ASAP PLS DONT DELETE MY QUESTION
Answer:
10 points
Step-by-step explanation:
you just need to subtract the score in game 6 from the score in game 5
Answer:
10
Step-by-step explanation:
Look in the graph.
In game 6, use the last bar to the right in dark blue. The Tigers scored 35 points.
In game 5, use the purple bar. the Tigers scored 25 points.
To find the difference, we subtract.
35 - 25 = 10
Answer: 10
Can someone please help me.
Answer:
The answer can be seen in the image attached to this message (containing the full steps).
short: 27cm
long: 36cm
hypotenuse: 45cm
Step-by-step explanation:
The image attached to this message contains explained steps.
Lease help me please thanks you
Answer:
x=6
Step-by-step explanation:
Which equation is true when r = 7 ?
Answer:
7 = 49 ÷ r
Step-by-step explanation:
To find the equation that is true when r = 7, we need to find a number after the equals sign that is a multiple of 7.
Multiples of 7:
7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77...
Therefore, the only answer option in which the number after the equals sign is a multiple of 7 is:
7 = 49 ÷ r
To prove this, input r = 7 into each of the equations:
6 = 30 ÷ r
⇒ 6 = 30 ÷ 7
⇒ 6 ≠ 4.285... ← incorrect!
7 = 54 ÷ r
⇒ 7 = 54 ÷ 7
⇒ 7 ≠ 7.714... ← incorrect!
7 = 49 ÷ r
⇒ 7 = 49 ÷ 7
⇒ 7 = 7 ← correct!
9 = 72 ÷ r
⇒ 9 = 72 ÷ 7
⇒ 9 ≠ 10.285... ← incorrect!
At lunch, Kira eats either a burrito containing 490 milligrams of sodium or a peanut butter sandwich containing 700 milligrams of sodium. Her doctor told her to reduce her sodium to no more than 4,000 milligrams per week. Which inequality represents x, the number of microwave burritos, and y, the number of peanut butter sandwiches, she can eat each week?
490x + 700y < 4000
490x + 700y ≤ 4000
490x + 700y > 4000
490x + 700y ≥ 4000
Answer: 490*x + 700y ≤ 4000
It is ≤ as it can either be equal to 4000 per week or less than.
Answer:
B.Step-by-step explanation:
Surface area and radis
Answer:
what do you want to say......?
What is the probability of picking a pink marble and rolling an even number?
Write your answer as a fraction or a whole number. With fractions, use a slash ( / ) to separate the numerator and denominator.
Answer:
[tex]\frac{6}{14}[/tex]
Step-by-step explanation:
P(A and B) = P(A) × P(B)
~~~~~~~~
P(A) = [tex]\frac{6}{7}[/tex]
P(B) = [tex]\frac{3}{6}[/tex] = [tex]\frac{1}{2}[/tex]
P(A and B) = [tex]\frac{6}{7}[/tex] × [tex]\frac{1}{2}[/tex] = [tex]\frac{6}{14}[/tex]
Which inequality represents the graph shown below?
Answer:
x>-2
since the arrow goes to the right from -2 it is definitely greater than -2. now see that the line does not include the value -2 itself.. thus, we say it is greater than -2
Answer:
x > -2
Step-by-step explanation:
Details understood from the graph :
Open dot from starting pointIncreases from -2Hence,
Open dot means > or <Greater means ⇒ >The inequality is : x > -2Enter the number that belongs in the green box.
Answer:
B. 2
Step-by-step explanation:
Here we need to the find the value in the green box.
Hence, only evaluate the part to the left of the operation sign.
-(-2)2Please answer my assignment
You’re involved in the design of a new facility. It is important for people to move between work stations quickly. Based on the figure below, how many feet would a person need to walk to get from Work Station 1 to Work Station 3?
Find the slope of the given line. Please see attached photo. Thank you
Answer:
-2
Step-by-step explanation:
Find two points which lie on the line :
Take (-2, -1) and (-1, -3)Formula for slope (m) :
m = y₂ - y₁ / x₂ - x₁m = -3 + 1 / -1 + 2m = -2/1m = -2Answer: [tex]-2[/tex]
Step-by-step explanation:
[tex]Slope:m=0[/tex]
[tex]y=mx+b[/tex]
[tex]-2*10^0[/tex]
[tex]-2~is~a~rational~number[/tex]
[tex]\frac{180}{pi}[/tex]°
A glacier is moving at a rate of 5 ft per year. At this rate, how long will it take the glacier to travel 1 mi? Hint: 1 mi = 5,280 ft
Is 1.05 greater then 8.5?
Answer:
no
Step-by-step explanation:
Answer:
No, it is not.
Step-by-step explanation:
because 8.5 is the same as 8.50.
Hope this helps!
Which matrix multiplication is possible
Answer: D)
Step-by-step explanation: using a matrix calculator for each equation, the last one was the only one that was possible which came out to be ( 0,4,0,-4)
So I’m failing right now but I need 44% to pass and I have a 38% right now.I take notes and I get 5/5 (or 100%) on the notes. I did 4 of them will that bring it up?? If so what would be my current grade. Please help meeeeeee.
Answer:
well yes it but it depends on how much each points you will get for each assignment and how much you have, but other than that I am very sure It will! don't lose hope! keep doing your best! only think positive!!!