ANY MATH EXPERTS PLS HELP RN I GOT 30 MIN LEFT I'll MARK BRAINLIEST TO WHO ANSWER'S FIRST
Answers
Answer:
y = -3x + 7
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDASAlgebra I
Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]
Slope-Intercept Form: y = mx + b
m - slope b - y-interceptStep-by-step explanation:
Step 1: Define
Find points from graph.
Point (1, 4)
y-intercept (0, 7)
Step 2: Find slope m
Substitute: [tex]m=\frac{7-4}{0-1}[/tex]Subtract: [tex]m=\frac{3}{-1}[/tex]Divide: [tex]m=-3[/tex]Step 3: Write linear function
y = -3x + 7
Related Questions
-3x - 8 = 50
Anyone know how to solve this by elimination?
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explanation it’s bc I’m smart :)
Find the slope of the line that contains (-2,-2) and (-10,-9).
A. M=8/7 B. M=11/12
C. M=12/11 D. M=7/8
Answers
Answer:
D
Step-by-step explanation:
slope of a line m= rise /run= (y1-y2)/ (x1-x2) = -2+9/-2+10 =7/8
Answer:7/8
Step-by-step explanation:
multiplying two complex numbers involves _____
Answers
Answer:
232
Step-by-step explanation:
232
The popcorn in a vending machine costs $0.75 per bag. Which function rule describes the situation?
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Answer:
f(b)=75%b
hope it helped :)
Please help ASAP!
An ice cream factory makes 280 quarts of ice cream in 2 hours. How many quarts could be made in 36 hours? What was the rate per day?
Answers
Answer: 10,080
Step-by-step explanation:
280 x 36 = 10,080
If I got this wrong sorry, but the best way to find it is by dividing the number and hours Ik it doesn't make sense, I'm bad at explaining.
Answer:In 48 hours, 1,344 quarts of ice cream can be made.
The rate per day is 672 quarts of ice cream.
Step-by-step explanation:
find c when a=8 and b=10 in a right triangle
Answers
Answer:
I googled it and found 12.81 (it seems right to me,but I'm not sure)
A map of the scale of 1 inch equals 15 miles what is the actual distance between two cities are 2 1/2 inches apart on the map
Answers
Answer:
37.5
Step-by-step explanation:
1=15 so 2=30 plus half of 15 (7.5) add, 37.5! :) Hope this helped! Have a good day! ;)
Please help I never learned this
Answers
Answer:
7
Step-by-step explanation:
7x7x7
A book advertised as 20% off. If it cost 70$ how much was it originally
Answers
Answer:
The answer is $84
Step-by-step explanation:
hope this helps
$70×0.2=14
$70+$14=$84
Answer:
Step-by-step explanation:
$87.50 would be your answer
since you're trying to find the book cost originally you would subtract the total minus the discount to get .8
then you would divide 70/.8 to get your answer of 87.50
I need help please ASAP!!!!!!
Answers
Answer: y = 2x + 14 x is the number of weeks. 14 (b) was his original performance in miles jogged per week. y is the expected performance.
Sketch attached.
Step-by-step explanation: Given John's current performance, it is likely that he was able to jog some number of miles per week, the "b" in slope-intercept form. To calculate:
30 = 2(8) + b
30 = 16 + b
30 - 16 = b
14 = b
Substitute into the slope intercept equation:
y = 2x + b
21 less than three fifths of a number
Answers
Answer:
3/5x - 21
Step-by-step explanation:
3/5x represents the three fifths of a number, and - 21 represents 21 less :)
(-x²+9) + (-3x²-11x+4)
Answers
Answer:
=-4x^2-11x+13
Step-by-step explanation:
Which of the following describes the transformation from AABC" -->
AA"B"C"?
A) reflection over X-axis, then translation (0,2)
B) 90 counterclockwise rotation, then reflection over y-axis
C) reflection over y-axis, then rotation 180
D) 90 counterclockwise rotation, then reflection over x-axis
Answers
D. 90 counterclockwise rotation, then reflection over x-axis
At the beginning of Grade 6, the ratio of advanced math students to the number of regular math students was 3: 8. After taking placement tests, students we removed around changing the ratio of advanced students to the number of regular students to 4: 7. How many students started in regular math and advanced math if there were 92 students in advanced math after the placement test?
Answers
Answer:
69 students were advanced and 184 were regular
Step-by-step explanation:
begining
advance 3: regular 8
after exam
advance 4 (92students) : regular 7 (92/4=23; 23*7=161 students)
So total students we have 161+92=253,
remember we have advance 3: regular 8 so
253/(3+8)=253/11=23
23*3=69, 23*8=184
what is the slope of the line
Answers
Answer:
1/2
Step-by-step explanation:
Answer:
The slope of the line is -2 or m=-2
Step-by-step explanation:
ASAP!!
what is the polar form of -2sqrt3 -6i?
Answers
Answer:
D on edge
Step-by-step explanation:
2020
Answer:
D
Step-by-step explanation:
Ed2021
whats the slope of (8,18) and (16,24)
Answers
Answer:
6/8
Step-by-step explanation:
I answered this math question on edge and 100%.
There is a population of 1,000 bacteria in a colony. If the number of bacteria doubles every 21 hours, what will the population be 63 hours from now?
Answers
Answer:
6,000
Step-by-step explanation:
1,000*2=2,000
63/21=3
2,000*3=6,000
Answer:
3000
Step-by-step explanation:
21 hours x 3 = 63 hours
if the bacteria doubles every 21 hours, in 63 hours it would have doubled three times. 1,000 bacteria x 3 = 3,000 bacteria
Out of the 21 students in Terry's class, 15 prefer spaghetti over meatloaf. There are 420 students in Terry's middle school. Based on these survey results, how many students at Terry's school could be expected to prefer spaghetti over meatloaf?
Answers
Answer:
300 can be expected to prefer spaghetti over meatloaf.
Answer:
Step-by-step explanation:
15:21 = x:420 (students that want da spaghetti:overall students)
cross multiply
15 x
21 420
6300=21x
divide by 21 on both sides
300=x
300 students out of the 420 prefer da spaghetti
Which equation is perpendicular to y = 4x - 6 and passes through point (8, 12).
Answers
Answer:
The line is ;
4y = -x + 56
or
y = -x/4 + 14
Step-by-step explanation:
Generally, the equation of a straight line is;
y = mx + c
where m represents the slope
so for y = 4x - 6
The slope is 4
If two lines are perpendicular, the product of their slopes is -1
So for the second line, the slope will be -1/4
The equation in the point slope format will be ;
y-12 = -1/4(x-8)
y-12 = -x/4 + 2
Multiply through by 4
4y-48 = -x + 8
4y = -x + 8 + 48
4y = - x + 56
The equation of the line that passes through (8, 12) and is perpendicular to y = 4x - 6 is:
[tex]y - 12 = -\frac{1}{4} (x - 8)[/tex] (point-slope form)
or
[tex]y = -\frac{1}{4}x + 14[/tex] (slope-intercept form)
Recall:
Point-slope equation is given in the form of: y - b = m(x - a)Slope-intercept equation is given in the form of: y == mx + bWhere, m is the slopeThe slopes of two lines that are perpendicular to each other are the negative reciprocal of one another.Given:
y = 4x - 6
Slope (m) = 4The negative reciprocal of 4 is: -1/4To write the equation of a line that passes through (8, 12) and is also perpendicular to y = 4x - 6, substitute m = -1/4 and (8, 12) into
y - b = m(x - a)
Thus:[tex]y - 12 = -\frac{1}{4} (x - 8)[/tex] (point-slope form)
Rewrite in slope-intercept form
[tex]y - 12 = -\frac{1}{4} (x - 8)\\\\y - 12 = -\frac{1}{4}x + 2\\\\y = -\frac{1}{4}x + 2 + 12\\\\y = -\frac{1}{4}x + 14[/tex](point-slope form)
Therefore, the equation of the line that passes through (8, 12) and is perpendicular to y = 4x - 6 is:
[tex]y - 12 = -\frac{1}{4} (x - 8)[/tex] (point-slope form)
or
[tex]y = -\frac{1}{4}x + 14[/tex] (slope-intercept form)
Learn more here:
https://brainly.com/question/16732089
maria rode her bike for three-fifths of a miles did she ride altogether
A.1/5 B.3/10 C.7/5 D.4/5
Answers
Complete Question:
Maria rode her bike for three-fifths of a mile on Monday and one-fifth of a mile on Tuesday. How many miles did she ride altogether?
Group of answer choices.
A. 1/5
B. 3/10
C. 7/5
D. 4/5
Answer:
D. 4/5
Step-by-step explanation:
Given the following data;
Distance covered on Monday, D1 = 3/5 miles
Distance covered on Tuesday, D2 = 1/5 miles
Total distance covered, Td = D1 + D2
Substituting into the equation, we have;
[tex] Td = \frac {3}{5} + \frac {1}{5}[/tex]
Lowest common denominator (LCD) = 5
[tex] Td = \frac {3 + 1}{5} [/tex]
Td = 4/5 miles.
Therefore, Maria rode 4/5 miles altogether.
Describe and correct the error in finding the slope and the y-intercept of the graph of the equation.
Answers
Answer:
The error is the slope is -4 and the correct is, the slope is [tex]-\frac{1}{4}[/tex]
Step-by-step explanation:
You must put the equation in the form of y = m x + b, where
m is the slope b is the y-interceptLet us put the equation n the form above
∵ x = -4y
→ Switch the two sides
∴ -4y = x
→ Make the coefficient of y equal 1 by divide both sides by -4
∵ [tex]\frac{-4y}{-4}[/tex] = [tex]\frac{x}{-4}[/tex]
∴ y = [tex]\frac{x}{-4}[/tex]
→ Write [tex]\frac{x}{-4}[/tex] as [tex]-\frac{1}{4}[/tex] x
∴ y = [tex]-\frac{1}{4}[/tex] x
→ Compare it by the form above
∴ m = [tex]-\frac{1}{4}[/tex] and b = 0
∴ The slope of the is [tex]-\frac{1}{4}[/tex] , and the y-intercept is 0
∴ The error is the slope is -4 and the correct is the slope is [tex]-\frac{1}{4}[/tex]
What’s the equation of the line that passes through the points (7,-4) and (-7,1)
Answers
Answer:
5x +14y = -21
Step-by-step explanation:
One way to write the equation of a line from two points is ...
(y2 -y1)(x -x1) -(x2 -x1)(y -y1) = 0
(1 -(-4))(x -7) -(-7 -7)(y -(-4)) = 0
5(x -7) +14(y +4) = 0
5x +14y -35 +56 = 0
5x +14y = -21 . . . standard form equation of the line
Helen has five times more as money as Brian they're both have $42 together how much do they have
Answers
Answer:
Helen has $35 and Brian has $7
Step-by-step explanation:
5b + b = 42
6b = 42
/6 /6
b = 7
7(5) + 7 = 42
35 + 7 = 42
42=42
A. Y=x^2+3 B. Y=2/3x+6 C. Y=|x|+4 D .Y=2x-5 1. Identify the linear equations from the list. 2. State the constant rate of change for each linear equation. 3. Briefly describe the relationship between constant rate of change and linear equations.
Answers
Answer:
Step-by-step explanation:
1. An equation is said to be linear if the variables have power not greater than 1.
Thus, the linear equations from the list are:
B. Y = [tex]\frac{2}{3}[/tex]x + 6
C. Y = |x| + 4
D .Y = 2x - 5
2. Comparing the equations with y = mx ± c, the constant rate of change for each linear equation are:
B. [tex]\frac{2}{3}[/tex]
C. 1
D. 2
3. The constant rate of change is the gradient (slope) of a linear equation. It describes the steepness of a line from the plot of points obtained from the linear equation.
The value of x is???
Answers
Answer: the vaule is 4
Step-by-step explanation:
becusee its the same as the one across
Answer:
4
Step-by-step explanation:
1 x 4 / 1 = 4
pls solve this using substitution method 2f - 3g=11 , 3f -5g =15
Answers
Answer:
f= 10, g=3
Step-by-step explanation:
Hope it helps!
How do you know when an expression is completely simplified?
Answers
Answer:
You keep divinding it by 2 until you can no longer divide
Store A is selling clothes for 20% off. Store B advertises low prices without needing to give sales. A coat you want is sold at both places.
Store A's normal price is $59.99 plus 20% off. Store B's price is $49.99. Which store sells the coat the cheapest and by how much?
A.
Store B by $2.
B.
Store A by $2
C.
Store B by $4
D.
Store A by $4
Answers
Answer: I think the answer is b
Step-by-step explanation:
20% off means that there is 80% on which means you pay that 80% so you move the decimal point two spots
80.0% to .80 and multiply store a’s price of 59.99 to get 47.992 round the two in the decimal down making the total price for store a 47.99 and total price for store b 49.99 so store a is the better price by two dollars
Two lines, C and D, are represented by the following equations: Line C: y = x + 5 Line D: y = −2x − 1 Which of the following options shows the solution to the system of equations and explains why? (4 points) a (−2, 3), because the point does not lie on any axis b (−2, 3), because both lines pass through this point c (−2, 3), because one of the lines passes through this point d (−2, 3), because the point lies between the two axes
Answers
Answer:
The correct answer is B
Step-by-step explanation:
I know this is the answer because I took the test and got it right.
