Answer:
1. a
2.d
3.d
Step-by-step explanation:
Answer:
1.A
2.)D
3.)D
4.)A
Step-by-step explanation:
7(x+6) you multiply 7 * x and then 7*6 that gives you 7x+6
7(5+x) you multiply 7*5 then 7*x that gives you 35+7x
3(7x - 8) you multiply 3*7x then 3*-8 that gives you 21x-24
m(3n + 7) you multiply m*3n then m*7 that gives you 3mn+7m
To solve the system of linear equations 3x - 2y - 4 and 9x-by= 12 by using the linear combination method, Henry decided that
he should first multiply the first equation by -3 and then add the two equations together to eliminate the x-terms. When he did
so, he also eliminated the y-terms and got the equation 0 = 0, so he thought that the system of equations must have an infinite
number of solutions. To check his answer, he graphed the equations 3x-2y = 4 and 9x-by= 12 with his graphing calculator,
but he could only see one line. Why is this?
because the system of equations actually has only one solution
because the system of equations actually has no solution
because the graphs of the two equations overlap each other
because the graph of one of the equations does not exist
Answer:
It is C because when they multiply by 3 the equations are the same
Step-by-step explanation:
Answer:
y=-3x+9 (D)
Step-by-step explanation:
plz halp meh!!!!!!!
Answer:
M=25-3D
Step-by-step explanation:
Daniel starts with 25 dollars and spends three dollars per day for a d number of days. So the amount of money in his wallet should be equal to the starting number of dollars minus the amount of money he spends. Therefore we get the equation M=25-3D, where M is the amount of money is his wallet, and D us the number of days he buys a drink and chips.
I will give you all five stars ⭐⭐⭐⭐⭐
Answer:
omg really;O
Step-by-step explanation:
1) Which of the equivalent expressions for P(x) reveals the price which gives a profit of
zero without changing the form of the expression?
P(x) = -3x? + 432x - 1680
b) P(x) = -3(x-4)(x - 140)
P(x) = -3(x - 72)2 + 13872
2) Find a price, which gives a profit of zero.
Answer:
1. (B)P(x) = -3(x-4)(x - 140)
2. $140
Step-by-step explanation:
(1) Given the profit function, P(x) where x is the price, the expression which reveals the price which gives a profit of zero without changing the form of the expression is:
P(x) = -3(x-4)(x - 140)
This is as a result of the fact that equating it to zero immediately yields the zeros of the quadratic polynomial.
(2)When the profit, P(x)=0, then using the expression above we have:
[tex]P(x) = -3(x-4)(x - 140)\\Since -3\neq 0, then:\\x-4=0$ or x-140=0\\x=4 or x=140[/tex]
A price of $4 or $140 as the case may be gives a profit of zero.
Find the missing values (4,16) and (x,24)
Answer:
(6, 24)
Step-by-step explanation:
What is the distance between point A and point B?
Answer:
the answer is B. The square root of 45.
Step-by-step explanation:
use the pythagorean theorem.
1. Find the side lengths of A and B, since you're trying to find the hypotenuse.
2. [tex]A^{2} + b^{2} =c^{2} \\3^{2} +6^{2} =c^{2} \\9+36=c^{2} \\45=c^{2} \\c=\sqrt{45}[/tex]
The distance between point A and point B is √45.
What is the Pythagorean theorem?The Pythagorean theorem states that the sum of the squares of the sides of a right-angled triangle is the square of the length of the hypotenuse.
The distance between A and B can be found as follows:We can draw a horizontal line parallel to the x-axis through point A. Now draw a vertical line parallel to the y-axis and intersects the horizontal line. Now join A and B.
The resultant triangle is a right-angled triangle.
We can use the Pythagorean theorem:
AB² = (5 - 2)² + (9 - 3)²
= 3² + 6²
= 9 + 36
= 45
AB = √45
Therefore, we have found that the distance between point A and point B is √45.
Learn more about the Pythagorean theorem here: https://brainly.com/question/343682
#SPJ2
I WILL GET A ZERO SO PLEASE HELP! THANKS!!!
Answer:
m = 6
Step-by-step explanation:
3.4m = 20.4
3.4m/3.4 = 20.4/3.4
m = 6
Based on the boxplot, which statement below is true?
A) The range of both box plots is about the same.
B) The means of both plots are approximately equal.
C) Plot B contains more data points than Plot A.
D) The mediums are approximately equal.
Answer:
A
Step-by-step explanation:
PLEASE HELP!!
The figure is made up of a rectangle and 2 right triangles.
What is the area of the figure?
O 1259 units2
O 1292 units2
O 1413 units2
O 1566 units2
The rectangle is 28×34 and the two triangles are (1/2) 11 (28) and (1/2) (9)(34)
A = 28(34) + (1/2) 11 (28) + (1/2) (9)(34)
A = 1259
Answer: 1259 sq units
What is the point-slope form of a line with slope -3 that contains the point
(10,-1)?
A. y+ 1 = 3(x + 10)
B. x + 1 = -3(y-10)
C. y + 1 = -3(x-10)
D. y + 1 = 3(x-10)
Answer:
C
Step-by-step explanation:
Since we have a point and a slope, we can use the point slope formula.
The point slope formula is:
[tex]y-y_{1} =m(x-x_{1})[/tex]
where m is the slope, and (x1, y1) is the point given.
We know that the slope is -3, and the point given is (10, -1)
Therefore, our m is -3, x1 is 10, and y1 is -1.
y- -1 = -3(x-10)
y--1 is the same as y+1
y+1= -3(x-10)
Therefore, choice C is correct.
The grades on a geometry midterm at Springer are roughly symmetric with u = 73 and 0 = 3.0.
Umaima scored 72 on the exam.
Find the z-score for Umaima's exam grade. Round to two decimal places.
Answer:
z = - 0.33
Step-by-step explanation:
Given that:
Mean (μ) = 73, standard deviation (σ) = 3.0
Z score is a measure in statistics to determine the number of standard deviation a value is above or below the mean of what is measured. If the value is above the mean it is positive but if it is below the mean it is negative. It is given by the equation:
[tex]z=\frac{x-\mu}{\sigma}[/tex]
To calculate z-score for Umaima's exam grade, we need to calculate the z score of 72
For x = 72, the z score is:
[tex]z=\frac{x-\mu}{\sigma}=\frac{72-73}{3} =-0.33[/tex]
z = - 0.33
Answer:
−0.33
Step-by-step explanation:
just did it oh khan
Write the expression in complete factored form
5(y - 7) + b(y-7) =
Answer:
(y-7)(5+b) i think
Find the roots of the quadratic equation by finding the square root:
x2 = 25.
Answer: The roots are -5 and 5
Step-by-step explanation:
5^2=25
5^-2=25
Answer:-5 and 5
Step-by-step explanation:
Claire completed the steps to solve the system of equations. 4 x minus 2 y = 4. 3 x + 3 y = 21. Step 1 12 x minus 6 y = 12. 6 x + 6 y = 42. Step 2 18 x = 54. Step 3 x = 3. Step 4 4 (3) minus 2 y = 4. 12 minus 2 y = 4. 2 y = negative 8. y = negative 4. Step 5 Solution is (3, negative 4). Is Claire’s solution to the system of equations correct? Explain why or why not. No, Claire should have multiplied the second equation by negative two instead of positive two in step one. Yes, Claire correctly added the equations and then substituted for x to solve for y. No, Claire should have multiplied the first equation by negative three instead of positive three in step one. No, Claire should have gotten Negative 2 y = negative 8 instead of 2 y = negative 8 in step four.
Answer:
I'm pretty sure it's "No, Claire should have multiplied the second equation by negative two instead of positive two in step one."
Step-by-step explanation:
Answer:
A. "No, Claire should have multiplied the second equation by negative two instead of positive two in step one."
Step-by-step explanation:
Claire completed the steps to solve the system of equations. 4 x minus 2 y = 4. 3 x + 3 y = 21. Step 1 12 x minus 6 y = 12. 6 x + 6 y = 42. Step 2 18 x = 54. Step 3 x = 3. Step 4 4 (3) minus 2 y = 4. 12 minus 2 y = 4. 2 y = negative 8. y = negative 4. Step 5 Solution is (3, negative 4). Is Claire’s solution to the system of equations correct? Explain why or why not. No, Claire should have multiplied the second equation by negative two instead of positive two in step one. Yes, Claire correctly added the equations and then substituted for x to solve for y. No, Claire should have multiplied the first equation by negative three instead of positive three in step one. No, Claire should have gotten Negative 2 y = negative 8 instead of 2 y = negative 8 in step four.
Please Mark As Brainliest...
Sorry For The Smol Brain Question..............
To minimize the effect of capital gains tax, what is the least amount of time for which an investment should be held?
O A.
6 months
OB. 3 years
O C. 366 days
OD. 1.5 years
2 years
Answer:
C) 366 days
Step-by-step explanation:
Capital gains taxes are classified into:
Short term capital gains which are taxed at the same marginal tax rate than ordinary income. Any investment held for one year or less is subject to short term capital gains. Long term capital gains which are taxed at a generally lower tax rate, e.g. 0 - 15% - 20%. An investment must be held for more than one year to be considered a long term capital gain.Answer:
366 days
Step-by-step explanation:
determine the inverse of the function. (show work please)
Answer:
This is easy -- it's just a list of steps. At this level, the problems are pretty simple.
Let's just do one, then I'll write out the list of steps for you.
Find the inverse of f( x ) = -( 1 / 3 )x + 1
STEP 1: Stick a "y" in for the "f(x)" guy:
y = -( 1 / 3 )x + 1
STEP 2: Switch the x and y
( because every (x, y) has a (y, x) partner! ):
x = -( 1 / 3 )y + 1
STEP 3: Solve for y:
x = -( 1 / 3 )y + 1 ... multiply by 3 to ditch the fraction ... 3x = -y + 3 ... ditch the +3 ... subtract 3 from both sides ... 3x - 3 = -y ... multiply by -1 ... -3x + 3 = y ... y = -3x + 3
STEP 4: Stick in the inverse notation, f^( -1 )( x )
f^( -1 )( x ) = -3x + 3
Step-by-step explanation:
while abbie is jogging she moves forward 85 cm every second how many seconds will abbie take to jog 8.5 meters
Answer:
85 cm = .85 meters
8.5 / .85 = 10 seconds
Step-by-step explanation:
Can you help me find MAD for this
Answer:
5
Step-by-step explanation:
(3+15+21+13)/4 = 13
13 - 3 = 10
15 - 13 = 2
21 - 13 = 8
13 - 13 = 0
(10+2+8+0)/4 = 5
what is the area of this triangle?
Answer:
I believe the answer is 24
Answer:
The area of the triangle is 24 units2
Step-by-step explanation:
To find an area of a triangle you simply have to multiply a and b which are the legs of a triangle, in this case it would be 6 and 8, after doing that you divide the result by 2. So A= 6x8/2 ---> A=48/2 -----> A=24
Find the probability that a point chosen at random will lie in the shaded region.
I don't understand what to do here :(
Step-by-step explanation:
In the 1st question
Total boxes = 6
Shaded boxes = 2
Probability = 2/6 = 1/3
What is the volume of the cone below?
Please help me with this
Answer:
no
Step-by-step explanation:
a 13% discount on an item that costs $1150 will cost u $1000.50
tell me if u want work i assumed u wanted a quick answer since its a quiz
Answer: No, you would still need $0.50
Step-by-step explanation:
1150 x 0.13= 149.5
1150-149.5= 1000.5
store is having a sale on almonds and Jelly beans. For 5 pounds of almonds and 3 pounds of jelly beans, the total cost is $20. For 7 pounds of almonds and 9
pounds of jelly beans, the total cost is $46. Find the cost for each pound of almonds and each pound of jelly beans.
Tell whether the triangle with the given side lengths is a right triangle.
3.9 mm, 8.0 mm, 8.9 mm
Help help help me me me
Step-by-step explanation:
...
the answer is 49/40
A restless point moved from point −8 1/2 to the right at the speed of
1 1/4 units per minute. Where will it be in an hour?
Answer:
point 66.5
Step-by-step explanation:
WILL MARK BRAINLIEST:
Hello! So I need to know HOW to do this. Please don't do the work for me, I just need an explanation. thank you!
Answer:
Scientific notation is a way of writing very large or very small numbers. A number is written in scientific notation when a number between 1 and 10 is multiplied by a power of 10. For example, 650,000,000 can be written in scientific notation as 6.5 ✕ 10^8.
Answer:
as the other guy said, scientific notation in simple words is expressing large quantities in terms of being multiplied with powers of 10
hence,
11. 7.5 x 10^6
12. 2.9 x 10^5
13. 3.7 x 10^(-4)
14. 1.26 x 10^4
15. 2 x 10^(-7)
16. 4 x 10^(-3)
17.6 x 10^7
18. 4.07 x 10^7
19. 8.1 x 10^(-4)
20. 1.25 x 10^(4)
You are wakeboarding on a river. You travel 2 miles downstream to a marina for supplies, and then you travel 3 miles upstream to a dock. The boat travels x miles per hour during the entire trip, and the river current is 3 miles per hour.
How long will the trip take when then speed of the boat is 18 miles per hour? Round to the nearest tenth minute.
Answer:
17.3
Step-by-step explanation:
(2+18)=(20mph*2miles)=6 minute
(18-2)=16mph*3miles=11.25
17.25
help me asap right answer gets most brainlyest
Answer: The answer is 1/4th :)
What does 5 - n represent
Answer:
Some number or variable less than 5.
Step-by-step explanation:
Answer:
a sum number more than five
Step-by-step explanation:
