Answer:
y = x - 1
Step-by-step explanation:
If it's parallel to x - y = 7, that means the slope of that equation is the slope for the equation you're looking for.
To get the slope, you need to put the given equation into slope intercept form, so move x to the other side. You should get: -y = 7 - x
Then, to get the y positive, divide by -1: y = -7 + x
Slope intercept form is as follows: y = mx + b, so whatever the number is in front of x is your slope. In this instance, your slope is 1.
You now have your slope, and a point in which your new line passed through. Using slope intercept form, y = mx + b, if you substitute in what you know, you can find your answer. Right now you know y, m, and x, and you're looking for b.
x=1; y=0; m=1.
So, substituting, you'd get 0 = (1)(1) + b
0=1+b Solve
You should get b= -1, leaving your final answer as y = x - 1
y=x+1 is the slope-intercept form of the line that passes through the point (1, 0) and is parallel to x - y = 7.
What is Slope of Line?The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.
The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.
The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is
m=y₂-y₁/x₂-x₁
We need to find slope-intercept form of the line that passes through the point (1, 0) and is parallel to x - y = 7.
The slope will be same as it is parallel.
x - y = 7.
-y=7-x
y=x-7
Slope is 1.
Now equation of line passing through (1,0)
0=1(1)+c
c=-1
y=x-(-1)
y=x+1
Hence y=x+1 is the slope-intercept form of the line that passes through the point (1, 0) and is parallel to x - y = 7.
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The table and equation represent different linear relationships. Which one has the greater rate of change? Explain your reasoning.
Answer:
The equation y=4x-1 has a greater rate of change
Step-by-step explanation:
to find rate of change for the table, you use [tex]\frac{y_{2} -y_{1} }{x_{2} -x_{1} }[/tex]
so, [tex]\frac{-5-(-7)}{-2-(-3)}[/tex] = [tex]\frac{2}{1}[/tex] = 2
So the rate of change for the table is 2 while the rate of change for the equation is 4. 4>2 so the equation has a greater rate of change.
I need help identifying the independent and dependent variables, also are they continuous or discrete. I need help can someone help me please?
thanks ;)
Answer:
s = independent variable, P(s) = dependent variable
Step-by-step explanation:
s = discrete because you need a certain value for shirts. For instance, 1,2,3, etc... you cannot make profit off half a shirt or a quarter of a shirt.
P(s) = continuous because profits doesnt have to be an exact value. For instance, you can make a profit of $12.65
Suppose that Sears has a sale on a portable DVD player. The DVD player was originally
$80. However, the DVD player was marked down at a 25% discount, but today Sears is
having a special 25% off everything in the store, even sales items. What would the cost of the item be today after both discounts? (Explain how you got your answer)
Answer:
The answer would be $40.
Step-by-step explanation:
You take the first 25% off and add it to the other 25% off, which would equal 50% off. After that you take 50% off for $80, which would be $40 because half of $80 is $40.
Consider U = {x|x is a negative real number}. Which is an empty set?
{x|XE U and x has a negative cube root)
{x|XE U and x has a negative square root}
{x|XE U and x is equal to the product of a positive number and -1}
{x|XE U and x is equal to the sum of one negative and one positive number}
Answer:
{x|xeU and x has a negative square root}
Step-by-step explanation:
Answer:
(B.) {x|x ∈ U and x has a negative square root}
Step-by-step explanation:
its right on edge 2020
2c +10 = 30
How can I solve this?
Step-by-step explanation:
2c+10=30
2c+10−10=30−10
2c=20
2c÷2=20÷2
Answer: c=10
Answer:
10
Step-by-step explanation:
2c + 10 = 30
so we take 10 to the other side to become - 10.
Therefore 2c = 30 - 10
= 20
Divide both sides by the coefficient of c that's 2
2c = 20
c = 10
Find the distance between the pair of points.
(0, -7) and (-3, -7)
Answer:
[tex]d =3[/tex]
General Formulas and Concepts:
Pre-Alg
Order of Operations: BPEMDASAlgebra II
Distance Formula: [tex]d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]Step-by-step explanation:
Step 1: Define
Point (0, -7)
Point (-3, -7)
Step 2: Find distance d
Substitute: [tex]d = \sqrt{(-3-0)^2+(-7+7)^2}[/tex]Subtract/Add: [tex]d = \sqrt{(-3)^2+(0)^2}[/tex]Evaluate: [tex]d = \sqrt{9}[/tex]Evaluate: [tex]d =3[/tex]WILL MARK BRAINLIEST Given angle SUN is congruent to angle TAN, we can conclude that s=a, su=tn sn=tn, un=ta, or t=u
Answer:
SN=TN
Step-by-step explanation:
When determining congruency (if that's a word) S will always equal T
U will always equal A and N will always equal N
So SN= TN
7th grade math help me pleaseee
A = 8
B = 50
Step-by-step explanation:
Answer:
A= 2^4= 16
B=10^5=100,000
Step-by-step explanation:
A= 2*2=4*2=8*2=16
B=10*10=100*10=1000*10=10,000*10=100,000
Hope this helps!! Please consider marking brainliest! Have a good one!!
(3х3 – 17х2 + 15x — 25)
(x — 5)
Answer: 39
Step-by-step explanation: its very confusing so forgive me if im wrong
7. Solve the formula
I=E/R+r
a) For E
b) For r
Answer:
a) E = I(R+r)
b) r = (E/I) - R
Step-by-step explanation:
Part 1
Write your own real-world scenario where the Pythagorean Theorem can be applied to find a missing piece. You may choose to write a problem that is two- or three-dimensional in nature. Be sure that you will be able to draw a diagram of your scenario.
Write out your problem and submit it for Part 1. Be sure to end your scenario with a question.
Part 2
Draw a diagram of the scenario you created in Part 1. You may draw by hand and scan and upload your drawing or create a computer-generated drawing for submission. Be sure to label all parts and dimensions of the drawing.
Part 3
Solve the question that you posed in Part 1. Show all of your steps in answering the question.
For this option, you will need to submit all three parts for full credit—your real-world problem and question, the diagram that you created, and your work solving the problem, showing all steps.
Answer:
Step-by-step explanation:
1. You have a ladder that is 10 feet tall and you place it on the ground 6 feet away from your house, which you plan to paint. How far up will the ladder reach? (Ans: 8 feet)
2. I think drawing a diagram of this is pretty self-explanitory. Just remember to lable the ladder as 10 feet, the ground as 6 feet, and the house as 8 feet.
3. There wasn't really an equation in the question, but if you draw a triangle you'll need to solve for the third side. It would be 8 feet, but if you consider the pythagoran therom:
100ft(c^2, the hypotenuse, or the ladder)- 36 ft(a^2, or the ground)= 64, the square root of 64 would give you 8. You can write it out symbolically, but I'm typing and there's not much I can do on here.
In the number 3.625, 3 represents ones, 6 represents tenths, 2 represents hundredths, and 5 represents thousandths. In which numbers does 6 represent 110 as much as it represents in the number 3.625? Select three that are correct.
5.362
3.562
6.253
5.236
2.563
Answer: A c and D ✨
Step-by-step explanation: bc it is xo
Solve. 7x−6=8+5x Enter your answer in the box. x =
Answer:
x = 7
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDASEquality PropertiesStep-by-step explanation:
Step 1: Define equation
7x - 6 = 8 + 5x
Step 2: Solve for x
Subtract 5x on both sides: 2x - 6 = 8Add 6 to both sides: 2x = 14Divide 2 on both sides: x = 7Step 3: Check
Plug in x into the original equation to verify it's a solution.
Substitute in x: 7(7) - 6 = 8 + 5(7)Multiply: 49 - 6 = 8 + 35Subtract/Add: 43 = 43Here we see that 43 does indeed equal 43.
∴ x = 7 is a solution of the equation.
Answer
7(7x)-6=8+5(7x)
49-6=8+35
43=43
43
I need help on this ASAP!
It's the first one I believe
six notebooks cost 720- Find
the cost of 5 notebooks
Answer:
$600
Step-by-step explanation:
first, you need to find the unit price which is found by dividing 720 by 6.
so, 720/6 is 120
then, to find the cost of 5 notebooks, you just need to multiply 120 by 5
which would get you 600.
therefore, the total cost of 5 notebooks is $600.
i hope that helps :)
Answer:
600
Divide 720 from 6
= 120
120 x 5 = 600
Please help me with this thanks
Answer:
no
Step-by-step explanation:
No, because none of the factors of 29 equal to -1
see image help me as fast as possible, please
Answer:
80 units ^2
Step-by-step explanation:
The semicircle that is added on to the rectangle can be translated to fit into the slot where a semicircle has been removed (both semicircles are congruent as they have the same diameter). This leaves us with a plain rectangle, with area b * h, or 8 * 10, or 80.
The midpoint of GN is (9, 11). One endpoint is N(7,5). Your friend calculates the coordinates of endpoint G as (15, 13). What is his error?
A. He switched the x and y coordinate in the Midpoint Formula.
B. He use the midpoint as one of the endpoint
C. His calculations using the Midpoint Formula were not simplified correctly
D. He found the midpoint between N and the midpoint of GN
Correct Answer: He switched the x and y coordinates in the Midpoint Formula.
Estimate a 15% tip on a dinner bill of $79.42 by first rounding the bill amount to the nearest ten dollars.
Answer:
I don't know if this is right but
Tip Total: $ 12
Total (Bill + Tip): $ 92
Sorry if this is wrong
Step-by-step explanation:
Answer:
$12 tip
Step-by-step explanation:
For this problem let's first round our bill amount to the nearest ten dollars. So $79.42 becomes $80.00. From here we will simply need to find 15% of $80.00 which can be found simply through multiplication as follows:
$80.00 * 0.15 = ?
$80.00 * 0.15 = 12
So, we can say the estimated 15% tip for the bill is $12.
Cheers.
Ashley went out to eat dinner, and the meal cost $25.00. If Ashley received a 40% discount, what was the
total value of the discount?
Answer:
10$
Step-by-step explanation:
i think is 1 dollars because if u multiply 25 by 40% it will give you ur answer wait till someone else answers
Ashley got $10 discount, at 40% discount on the meal worth $25.
What is percentage?Percentage is a part of the whole number. It is denoted by % sign.
1 %= 1/100.
Given that,
The cost of meal = $25.00
The discount given to Ashley on meal = 40%
The total value of discount = 25 x 40/100
= 1000/100
= 10
The total discount given by shopkeeper is $10.
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A game board consists of 64 squares that alternate in color between black and white. The figure below shows square $P$ in the bottom row and square $Q$ in the top row. A marker is placed at $P$. A step consists of moving the marker onto one of the adjoining white squares in the row above. How many 7-step paths are there from $P$ to $Q$ ? (The figure shows a sample path.)
9514 1404 393
Answer:
A) 28
Step-by-step explanation:
Of the seven moves, 3 must be to the left, and 4 must be to the right. That is, we end up exactly one space right of where we started, so there must be exactly one more move to the right than to the left.
The number of permutations of LLLRRRR is 7!/(4!·3!) = 35. Of those, several must be eliminated, because they result in a path that goes off the right side of the board.
The discounted sequences are ...
LRRRRLLRLRRRLLRRLRRLLRRRLLLRRRRLLRLRRRLRLLRRRRLLL"With these 7 possibilities eliminated from the list, there are 35 -7 = 28 possible paths from P to Q.
une série de sept nombre tous diffèrents dont la médiane est 5
Answer:
No idea what your saying
Step-by-step explanation:
You
You have found the following ages (in years) of 6 lizards. Those lizards were randomly selected from the 36
lizards at your local zoo:
1, 2, 2, 1, 3, 3
Based on your sample, what is the average age of the lizards? What is the standard deviation? Round your
answers to the nearest tenth.
Average age:
years old
Standard deviation:
years
Chow Calculator
Answer:
2
0.9
Step-by-step explanation:
The average age of the lizards will be 2 and the standard deviation is 0.81.
What is an average?Average is defined as the ratio of the sum of the number of the data sets to the total number of the data. The standard deviation is a statistic that expresses how much variation or dispersion there is in a set of values.
Given that the lizards were randomly selected from the 36 lizards at your local zoo: 1, 2, 2, 1, 3, 3
The average will be calculated as:-
Average = Sum of the data / Number of the data
Average = ( 1 + 2 + 1 + 3 + 3 ) / 6 = 12 / 6 = 2
The standard deviation will be calculated as:-
[tex]\rm \sigma=\sqrt{\dfrac{\sum(x-\mu)^2}{N}}\\\\\sigma=\sqrt{\dfrac{(1-2)^2+(2-2)^2+(1-2)^2+(3-2)^2+(3-2)^2}6[/tex]
[tex]\sigma[/tex] = 0.81
Therefore, the average age of the lizards will be 2 and the standard deviation is 0.81.
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Gina Wilson unit 3: homework 6: Slope intercept form and standard form HELP
Answer:
1.) 2x-y=-7 --> y=2x + 7
2.) 5x+3y=12 --> y= -5/3x + 4
3.) x-y=1 --> y= x- 1
4.) x-3y=-15 --> y=1/3x + 5
5.) 8x-10y=20 --> y=4/5x - 2
6.) 14x+6y=36 --> y=-7/3x+6
Step-by-step explanation:
Hope this helped.
5. A study of a population of 1,200 frogs revealed that 12 out of every 180 frogs in the population
have spots on their back. Based on the results of this study, how many frogs in the population do
NOT have spots on their back?
A. 80 C. 1,280
B. 168 D. 1,120
Answer:
1,280
Step-by-step explanation:
prob(spots) = 12/180 = 1/15
so of the 1200 frogs, (1/15)(1200) should have spots, so ..
how many should not have frogs ?
or
prob(not spots) = 14/15
number who don't have spots = (14/15)(1200) = 1,280
A gas cylinder contains 1.00 mol He, 1.90 mol Ne, and 1.10 mol Ar. If the total pressure in the cylinder is 2250 mmHg, what is the partial pressure of each of the components? Assume constant temperature.PHe=
PNe=
PAr=
Answer:
P_he = 562.5 mmHg
P_ne = 1068.75 mmHg
P_ar = 618.75 mmHg
Step-by-step explanation:
Formula for partial pressure is;
Partial pressure = mole fraction × total pressure
Mole fraction of Helium(He); x_he= 1/(1 + 1.9 + 1.1) = 1/4 = 0.25
Mole fraction of Neon(Ne); x_ne = 1.9/(1 + 1.9 + 1.1) = 1.9/4 = 0.475
Mole fraction of argon; x_ar = 1.1/(1 + 1.9 + 1.1) = 1.1/4 = 0.275
Thus;
Partial pressure of He;
P_he = 0.25 × 2250
P_he = 562.5 mmHg
Partial pressure of Ne;
P_ne = 0.475 × 2250
P_ne = 1068.75 mmHg
Partial pressure of Ar;
P_ar = 0.275 × 2250
P_ar = 618.75 mmHg
1 1/2 - 3/4 pls answer I will give y brainliest answer and 10 points
Answer:
1 1/2 - 3/4=?
CHange the first value to an improper fraction first, 1 1/2--->3/2
3/2-3/4=?
multiply the first value by 2/2 to get a common denom
6/4-3/4=?
subtract
6/4-3/4=3/4
3/4 is your answer
Step-by-step explanation:
Answer:
3/4
Step-by-step explanation:
This hack will help you with fractions:
Think about it like this: 1 1/2 = 1.5
And 3/4 = 0.75
There for 1.5 - 0.75 = 0.75 = 3/4
Hope that helps
Marie has a recipe that calls for 2 cups of flour for 3 dozen cookies. How much flour would she
need to make 60 cookies?
A 4 cups
B 3 3/4 cups
C 3 1/4 cups
D 3 1/3 cups
A
is a number formed by multiplying ten by a number.
I'm not really sure what the question is here, because you just gave a statement... but if you are trying to get an expression from words, here is what it would be:
A = 10N
I'm also not sure if "a number" is equal to the same as "a number" at the end, but I'm guessing not. If it is though, and you're trying to find the value of A, the answer would be:
A = 10
*Please provide the question you are asking here, not just statements, next time, so that people can help you.
I hope this helped :)
A rectangular prism has a length of 9 inches and a width of 8 inches. The lateral area is 170 square inches. What is the height of the prism? The height of the prism is inches.
Answer:
The height of the prism is 5 inches
Step-by-step explanation:
The rule of the lateral area of the rectangular prism is
L.A = 2(L + W) × H, where
L is the length of the base of the prismW is the width of the base of the prismH is the height of the prism∵ A rectangular prism has a length of 9 inches and a width of 8 inches
∴ L = 9 inches
∴ W = 8 inches
∵ The lateral area of it is 170 square inches
∴ L.A = 170 square inches
→ Substitute them in the rule above to find the height of the prism
∵ 170 = 2(9 + 8) × H
∴ 170 = 2(17) × 5
∴ 170 = 34 × H
→ Divide both sides by 34 to find H
∴ 5 = H
∴ The height of the prism is 5 inches.