=====================================================
Explanation:
The equation y = 3x-1 is in slope-intercept form y = mx+b
m = 3 = slopeb = -1 = y interceptParallel lines have equal slopes, but different y intercepts.
The answer will also have a slope of m = 3.
Plug that slope value, and the coordinates of the given point [tex](x_1,y_1) = (1,5)[/tex] , into the point-slope formula below.
Solve for y.
[tex]y - y_1 = m(x - x_1)\\\\y - 5 = 3(x - 1)\\\\y - 5 = 3x - 3\\\\y = 3x - 3+5\\\\y = 3x + 2\\\\[/tex]
That's how we arrive at the answer of y = 3x+2
As a check, plugging x = 1 into that answer should get us y = 5.
It confirms that the point (1,5) is on this line.
332x39 how do you work it out
What value is equivalent to (8+2) + (6 − 4) × 3?
Answer:
16
Step-by-step explanation:
(8+2) + (6 − 4) × 3
= 10+6
=16
There are 4 squares and 16 triangles. What is the simplest ratio of squares to
triangles?
Answer:
1 : 4
Step-by-step explanation:
There are 4 squares and 16 triangles.
That is,
Squares : Triangles
4 : 16
To write it in its simplest ratio, divide both by 4.
Squares : Triangles
1 : 4
help please for brianlest???
Answer:
Step-by-step explanation:
domain: 1,2,3,4
Range: 8,6,4,2
D=-2
[tex]a_{n}=a_{1}+(n-1)-2[/tex] formula
How Is The Problem Shown The Picture Done
Answer:
instead of X, we replace 9.
So we have: f(9)=4*9^2-2*9+4.
Again, f(9)= 4*81-18+4=324-14=310.
What is the equivalent equation to the given equation?
x = x² - 20
The equivalent equation to the given equation i.e, x = x² - 20 is x² - x - 20 = 0
What is a Quadratic equation ?
A second-degree equation of the form ax² + bx + c = 0 is known as a quadratic equation in mathematics. Here, x is the variable, c is the constant term, and a and b are the coefficients. Since x is a second-degree variable, this quadratic equation has two roots, or solutions.
The given expression is,
x = x² - 20
We have to make the equation in quadratic form i.e, ax² + bx + c = 0
so, first take x to the right side
0 = x² - 20 - x
Now swap the equation,
x² - 20 - x = 0
put 'x' term in middle and constant term at last like this,
x² - x - 20 = 0
Hence, The equivalent equation to the given equation i.e, x = x² - 20 is x² - x - 20 = 0
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Find g(x), where g(x) is the translation 1 unit up of f(x)=x2.
Write your answer in the form a(x–h)2+k, where a, h, and k are integers.
g(x)=
The value of the translated function g(x) will be x²+1.
What is a function?A function is defined as the expression that set up the relationship between the dependent variable and the independent variable.
Given that the function is f(x) = x². The function g(x) in the form of a(x–h)²+k will be written as below,
The function is translated to the 1 unit up which means that the value of k will be equal to the positive 1.
The function is,
g(x) = a(x–h)²+k
g(x) = 1(x-0)² + 1
g(x) = x² + 1
Therefore, the value of the translated function g(x) will be x²+1.
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Seven of the angles of a decagon have measures whose sum is 1220. Of the remaining 3 angles, exactly two are complementary and exactly two are supplementary. Find the measures of these three angles.
The measures of the remaining three angles of the decagon are 40, 50 and 130 degrees.
How to find angles of a decagon?A decagon is a polygon with 10 sides. In a regular decagon, the interior angles add up to 1440 degrees, and the exterior angles add up to 360 degrees.
Therefore, seven of the angles of a decagon have measures whose sum is 1220. Of the remaining 3 angles, exactly two are complementary and exactly two are supplementary.
Complementary angles sum up to 90 degrees while supplementary angles sum up to 180 degrees.
Therefore,
1440 - 1220 = 220
Let the angles be a, b and c.
Therefore,
a + b + c =220
a + b = 90
b + c = 180
Hence,
a = 220 - 180
a = 40°
b = 90 - 40
b = 50°
c = 180 - 50
c = 130°
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Determine which integer(s) from the set S:{−24, 2, 20, 35} will make the inequality five sixths m minus five is less than one half m plus 3 false.
The integer in the set S:{−24, 2, 20, 35} that will make the inequality five-sixths m minus five is less than one-half m plus 3 false is 35
What is inequality?Inequalities are created through the connection of two expressions. It should be noted that the expressions in inequality aren't always equal. Inequalities imply that the expressions are not equal. They are denoted by the symbols ≥ < > ≤.
In this case, based on the information we will replace m with 35. This will be illustrated thus:
= 5/6(35 - 5) < 1/2(35 + 3)
= 5/6(30) < 1/2(38)
= 25 < 19
In this case, 25 isn't less than 19. Therefore, 35 is the correct integer.
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find quotient of 5 divided by 3/10
The quotient of 5 divided by 3/10 is equal to 50/3
How to divide by a fraction?When we want to divide by a fraction, we just need to replace that division by the product with the inverse of the fraction.
So, if we want to divide A by the fraction (b/c), then we can write:
A÷(b/c)
That will be equal to A*(c/b), so:
A÷(b/c) = A*(c/b)
Here we want to divide 5 by 3/10, then we need to solve:
5÷(3/10)
Using the above rule we will get:
5÷(3/10) = 5*(10/3) = 50/3
That is the quotient.
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30 POINTS AND WILL GIVE BRAINLIEST
The credit remaining on a phone card (in dollars) is a linear function of the total calling time made with the card (in minutes). The remaining credit after 41 minutes of calls is $19.26, and the remaining credit after 57 minutes of calls is $17.02. What is the remaining credit after 71 minutes of calls?
I really need help with the steps for this, thank you!!
Answer: The correct answer is $15.06 is remaining after 71 minutes
Step-by-step explanation:
What we need to find out:
The remaining credit after 71 minutes.What we know:
The remaining credit after 41 minutes of calls is $19.26The remaining credit after 57 minutes of calls is $17.02If we convert the minutes (m) and remaining credits (c) to (x,y) data sets, they would look like the following:
x y
41 19.26 (41, 19.26)
57 17.02 (57, 17.02)
Plugging the x, y values into a linear equation, we get:
y - 19.26 = (17.02 - 19.26) / (57 - 41) * (x-41)
Solve the equation for y by adding 19.26 to both sides:
y − 19.26 + 19.26 = −0.14x + 5.74 + 19.26
y = −0.14x + 25
Resulting standard slope-intercept format:
y = −0.14x + 25
Now plug in 71 for the x value (minutes):
y = (-0.14*71) + 25
y = 15.06
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some help me pls with this
Solve the equation: r - 535 = 175
Step-by-step explanation:
r - 535 = 175
r = 175 + 535 = 710
Answer:
take - 535 to the other side (over equal to side)
which makes it +535
r = 175 + 535
r = 710
Select the correct answer.
Which set of absolute values is compared correctly?
A. -71 <181<|9|<1-10|
B.1-41 <1-3/<13<|4|
C. 1211-51> |-7|>1-81
D. 1-41>19> |-31 >|-10|
In actuality, "absolute value" refers to thinking of all numbers as positive and removing all negative signs from front of them (or zero). Symbol for absolute value. -71<181<|9|<1-10| set of absolute values
Explain about the absolute values?Without taking into account direction, absolute value describes how far a number is from zero on the number line. A number's absolute value can never be negative. Look at some illustrations. 5 is the sum of its absolute values. There are 5 units between 5 and 0.
The non-negative value of a real number x, regardless of its sign, is its absolute value (or modulus), | x |. For instance, 5 has an absolute value of 5, and 5 has a value of 5.
The exact distance of an integer or number from zero on a number line is its absolute value. As a result, the absolute value is never negative and is always positive.
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Can someone please help me thank you
Answer:
9. 4/5
10. 3/4
11. 1/4
12. 1/8
13. 1/11
14. 1/9
15. 9/10
16. 1/10
Step-by-step explanation:
ur welcome
I need answer help please
The value of the function f(a+4) is [tex]\frac{7}{a^{2} +8a+11}[/tex]
What is a function?function, in mathematics, is an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable called the dependent variable.
if f(x) = [tex]\frac{7}{x^{2} - 5}[/tex], which means this equation is a function of x,
To find another equation whose function is f(a + 4)
We substitute x for a + 4 in the above equation
f(a+4) = [tex]\frac{7}{(a+4) ^{2} - 5 }[/tex]
expanding [tex](a + 4)^{2}[/tex], and simplifying the denominator, we have
[tex]a^{2}[/tex] +8a + 16 - 5 = [tex]a^{2}[/tex] + 8a + 11
so the simplified form of the new function would be [tex]\frac{7}{a^{2} +8a+11}[/tex]
In conclusion, the function f(a +4) = [tex]\frac{7}{a^{2} +8a+11}[/tex]
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Mark earns a salary of £28000 per annum. At the end of the on increase first year he is given he is of 3%.. At end of the second given an increase of 2.5%. Work out Mark's salary at the end of the two years.
Answer:
£27839
Step-by-step explanation:
O×M=N (original x multiplier = original value)
£28000×0.97%=£27160< 1st year decrease
£27160x1.025=£27839<2nd year increase
Suppose that the maximum weight that a certain type of rectangular beam can support varies inversely as its length and jointly as its width and the square of its height. Suppose also that a beam 5 inches wide, 2 inches high, and 10 feet long can support a maximum of 8 tons. What is the maximum weight that could be supported by a beam that is 6 inches wide, 2 inches high, and 24 feet long?
The maximum weight that could be supported by a beam that is 6 inches wide, 2 inches high, and 24 feet long is 3.33.
How to find the maximum weight ?G = C×(w×h²/l)
Where,
C = constant
C = G×l/(w²h²)
Weight (w) = 6 in
Height (h) = 2 in
Length (l)= 10 ft
Maximum ton (G) = 8 t
C = 8×10/(6×2²)
C = 80/24
C = 10/3
G = (10/3)×(w×h²/l)
So, Maximum weight
G = (10/3)×(6×2²/24)
G = 10/3 t
G = 3.33 tones
The maximum weight is 3.33 tones.
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Change 4 1/6to an improper fraction.
Answer:
4 1/6 = 25/6
Why?:
Multiply the denominator with the mixed number 4.
Add the numerator 1 and get 25.
Then, you keep the denominator (Which is 6) on the bottom.
And finally, you get
25/6
Answer:
25/6
Step-by-step explanation:
first start by multiplying 6 and 4, which leads you to 24
then add the 1 from the numerator and you get 25 as your numerator.
for the denominator, leave six as it is so it becomes 25/6
what is 100÷200 need help
on dividing 100 by 200 we get answer as 0.5 or we can also write it as 1/2 in fraction.
What is division?
Multiplication is the opposite of division. If 3 groups of 4 add up to 12, then 12 divided into 3 groups of equal size results in 4 in each group.
The fundamental goal of division is to produce equal groups or to ascertain how many individuals are in each category following a fair distribution.
To divide 12 donuts into three similar groups in the aforementioned case, you would need to put four doughnuts in each group. Consequently, 12 divided by 3 will equal 4.
We need to find 100/200,
on solving this division problem we get answer as 1/2 (in fraction) or 0.5 (in decimal).
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what is -3 > -2x + 7 ?
The blood types of 200 people are collected at a doctor’s office. The table shows the breakdown of patients by blood type.
If a person from this group is selected at random, what is the probability that this person has type AB blood? Express your answer as a fraction
Blood Type Survey Results
Blood Type Number of Patients
A 45
B 65
O 75
AB 15
When a person from this group is selected at random, the probability that this person has type AB blood is 3/40
What is probability?Probability is the occurence of likely events. It is the area of mathematics that deals with numerical estimates of the likelihood that an event will occur or that a statement is true. An event's probability is a number between 0 and 1. In this case, 0 denotes the impossibility of the event and 1 represents certainty.
It should be noted that in this case, the number of people with AB blood is 15 and there are 200 people. The probability will be:
= Number of AB blood type / Total number of people
= 15 / 200
= 3/40
The probability is 3/40.
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For each equation, determine whether it represents a direct variation, an inverse variation, or neither.
Find the constant of variation when one exists and write it in simplest form.
The types of variation and their constants are;
1) Direct variation with constant of variation as -1/4
2) Direct variation with constant of variation as ³/₂
How to Interpret Mathematical Variations?A variation is defined as a relation that exists between a set of values of one variable and then a set of values of other variables.
In variation, if the variables change proportionately that is they either increase together or decrease together, then they are said to vary directly.
1) We are given the equation;
4y = -x
Now, y is the output while x is the input and so we make y the subject to get; y = -¹/₄x
Now, writing the relationship between y and x as a variation, we will have; y ∝ x
For this to be equal, there has to be a constant of proportionality which means; y = kx
Comparing with our equation tells us that;
This is a direct variation with constant of variation as -1/4
2) We are given the equation;
3x = 2y - 7
Rearranging gives;
2y = 3x + 7
y = ³/₂x + 7
Now, the greater the value of x, the greater the value of y and as such this is also a direct variation with the constant of variation being 3/2.
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Do the measurements 15,17,22 make up a right triangle? Yes or no explain??
answer me fast
The measurements 15, 17, 22 do not form a right triangle.
In this question, we have the measurements 15, 17, 22
We check whether the measurements 15, 17, 22 is Pythagorean triple.
22^2 = 484
15^2 = 225
17^2 = 289
15^ + 17^2 = 225 + 289
= 514
≠ 484
i.e., 15^ + 17^2 ≠ 22^2
This means, these measurements do not form a right triangle.
Therefore, the measurements 15, 17, 22 do not form a right triangle.
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Two numbers are consecutive odd integers. If twice the smaller is subtracted from three times the larger, the result is four more than the smaller. Which equation below could be used to find the smaller number?
(1) 2x-3(x+1)=x+4
(2) 3(x+1)-2x = x+4
(3) 2x-3(x+2) = x+4
(4) 3(x+2)-2x = x+4
Answer:
(4)
Step-by-step explanation:
Let's make the smaller number equal to x. Since they are consecutive odd numbers, the larger number is x+2.
Twice the smaller number is 2x. Three times the larger number is 3(x+2). If twice the smaller is subtracted from three times the larger, then the expression should be: 3(x+2) - 2x
Then, since the result of this is four more than the smaller, this expression is x+4.
Finally, we put it all together, so we get: 3(x+2) - 2x = x + 4. Option 4 is our correct answer.
Hence, the option (4) is correct.
What is the equation?
The definition of an equation is a mathematical statement that shows that two mathematical expressions are equal.
Here given that,
Two numbers are consecutive odd integers. If twice the smaller is subtracted from three times the larger, the result is four more than the smaller.
Let us assume the smaller number is [tex]x[/tex].
The larger number is [tex](x+2)[/tex].
Two numbers are consecutive odd integers. If twice the smaller is subtracted from three times the larger than it is
[tex]3(x+2)-2x[/tex]
So, the result is four more than the smaller.
i.e., [tex]3(x+2)-2x=x+4[/tex]
Hence, the option (4) is correct.
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When point F
is reflected in the line y = x, the image is located at F"(-7, 1).
The coordinates of F' when reflected in the line y=x is F'(1,-7)
Given:
When point F is reflected in the line y = x, the image is located at F"(-7, 1).
The x-coordinate and y-coordinate are reversed when a point is reflected over the line y = x. The x-coordinate and the y-coordinate switch places and become negated if you reflect over the line y = -x (the signs are changed). The point is on the line y = x. (y, x).
so the point F"(-7, 1) after reflection changes to:
F'(1,-7)
Hence we get the value of F' as (1,-7).
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Mrs. Boyer is buying folding chairs that are on sale for $8. She has $56. Which inequality
can be solved to show the number of chairs c Mrs. Smith can buy?
a. 8c ≤ 56
b.8 >56
c. 56c<58
d. 56c>28
An inequality that can be solved to show the number of chairs c Mrs. Smith can buy 8c ≤ 56
In this question we have been given Mrs. Boyer is buying folding chairs that are on sale for $8.
She has $56
We need to find an inequality that can be solved to show the number of chairs c Mrs. Smith can buy.
A price of one chair is $8
So, the price of 'c' number of chairs would be 8c
But she has $56
So, to find the number of chairs she can buy, we need to divide 56 by 8
We can write is as 8c = 56
⇒ c = 7
But she might buy less that 7 chairs.
So, we write above relation in inequality form as,
8c ≤ 56
Therefore, an inequality that can be solved to show the number of chairs c Mrs. Smith can buy 8c ≤ 56
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Find the equation in slope intercept
Answer:
y=-1/4x+4
Step-by-step explanation:
The graph starts on 4 so that is your y-intercept
Use slope formula to get the slop (y2-y1 over x2-x1)
Use 2 coordinates for formuls (In your case (0,4) and (4,3))
3-4=-1 4-0=4
slope is -1/4
y= -1/4x+4
18
8. Carey bought a $2,100 computer system on the installment plan. He made a $400 down
payment, and he has to make monthly payments of $79.50 for the next two years. How much
interest will he pay?
Answer:
$208
Step-by-step explanation:
$79.50 x 24 = 1908
$1908 + 400 = 2308
$2100/2308 = 9%
Carey will pay a total interest of $1,508 over the course of the installment plan for the computer system.
What is Interest?Interest is a financial concept that represents the cost of borrowing money or the return on invested capital. It is a fee charged for the use of borrowed funds or the compensation received for lending money or investing in assets.
Total number of monthly payments
= 12 months/year x 2 years
= 24 months
and, Monthly payment amount = $79.50
Total amount paid in monthly installments
= Monthly payment amount x Total number of monthly payments
= $79.50 x 24
= $1,908
Next, we can subtract the initial down payment from the total amount paid to find the interest paid:
Total interest paid = Total amount paid - Down payment
= $1,908 - $400
= $1,508
Therefore, Carey will pay a total interest of $1,508 over the course of the installment plan for the computer system.
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the sum of two numbers is 33. the sum of 3 times the larger and 4 times the smaller is 107
The value of the larger number and the smaller number are 25 and 8 respectively.
What is Simultaneous Equation?Simultaneous equations are two or more algebraic equations that share variables e.g. x and y.
They are called simultaneous equations because the equations are solved at the same time.
If the bigger value is represented by x and the smaller value is represented by then
x+y= 33 equation 1
3x+ 4y= 107 equation 2
using Elimination method,
we multiply the coefficients of x by opposite equation
3x+3y=99 equation 3
3x+4y= 107 equation4
subtracting equation 3 from 4
y=107- 99
y= 8
substituting 8 for y in equation 1
x+8= 33
x= 33-8=25
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