Step-by-step explanation:
the slope of the line is expressed as the ratio
y coordinate change / x coordinate change
when going from one point to the other.
the trick in such a situation is to find good points on the chart that are crossed by the line. and by "good" I mean points with round integer coordinates.
I see 2 such points :
(-3, 4) and (1, -3)
x changes by +4 (from -3 to 1)
y changes by -7 (from 4 to -3)
the slope is therefore -7/+4 = -7/4
Order the given rational numbers from least to greatest: 4 1/4
3.3
3 1/3
-4 1/4
-3
Answer:
-4 1/4 , -3 , 3.3, 3 1/3, 4 1/4
Step-by-step explanation:
make all fractions decimals
4 1/4 = 4.25
3 1/3 = 3.33333..
-4 1/4 = -4.25
4.25 , -3 , 3.3 , 3.33... , 4.25
parallel perpendicular or neither
Examine the table, which represents a linear function.
What is the rate of change of the function?
Input (x) Output (y)
-5 18
−3 23
−1 28
1 33
Answer:
I believe it should be 3 23
Answer:
2.5
Step-by-step explanation:
The rate of change can be found from the slope formula.
m = (y2 -y1)/(x2 -x1)
Using the first two lines of the table, we find ...
m = (23 -18)/(-3 -(-5)) = 5/2
The rate of change of the function is 5/2 = 2.5.
Put the following decimals in order from
least to greatest
{0.067, 0.06, 0.007, 0.09, 0.0076)
Everyone loved Caroline's cookies so much that they ate them all! She wants to make some more to eat at
home, but would only like to make 1 dozen cookies. How much of each ingredient will she need? Rewrite
the recipe so that it will only make 1 dozen cookies.
the sum of the three consecutive integers is -105 what are the three numbers?
Answer: -34, -35, -36
Explanation: To find the sum of the three consecutive integers which add up to -105, let us find the sum of three consecutive integers which add up to 105. The only possible solution is 34, 35, and 36. Now we can just make this negative for -105. To double check, put this into a calc: -34 + -35 + -36
Would appreciate brainly <3
y/−7 = 1 /4 what does y =
Answer:
y = - [tex]\frac{7}{4}[/tex]
Step-by-step explanation:
[tex]\frac{y}{-7}[/tex] = [tex]\frac{1}{4}[/tex] ( cross- multiply )
4y = - 7 ( divide both sides by 4 )
y = - [tex]\frac{7}{4}[/tex]
Please help me I need help with solving this equation worth 30 points
Answer:
1. -20
2. 27
3. 36
4. -200
The swim coach is planning to attend the district swim meet next week. She must decide who will swim the different events. Find the combined time of her star swimmers as well as the difference of their times for the 25-Meter Freestyle.
The combined Time is ------ seconds
The difference of Times is ------- second
Answer:
the combined time 55.316
diffrence of times 0.856
Step-by-step explanation:
its 6th grader math
Answer:
55,316 0.856
Step-by-step explanation:
Jada measured the height of a plant in a science experiment and finds that, to the nearest 1/4 of an inch, it is 4 3/4 inches.
What is the largest the actual height of the plant could be?
4 7/10
inches
Answer:
Step-by-step explanation:
Given that the height(h) of the plant to the nearest 1/4 of an inch is 3/4 inches = 0.75 inches.
It is obvious that the height will lie within the range
2.5/4<h<3.5/4
which corresponds to the range
5/8<h<7/8 OR 0.625<h<0.875
Thus,
a. The largest actual height could be 0.875 inches, while
b. The smallest actual height could be 0.625 inches
c. The percentage error is given by the formula:
[(approx.-exact)/exact]*100%
If we take the lowest value, for instance, as the exact, i.e. 0.625 inches,
then % error = [(0.75-0.625)/0.75]*100% = 16.7%
Obviously, the same value is expected if we take the upper limit of 0.875, i.e. % error = [(0.75-0.875)/0.75]*100% = -16.7%, only that the absolute value will be taken.
Which of the following lists of ordered pairs is a function?
A. (3, –2), (2, –1), (3, 4), (4, 7)
B. (0, 4), (1, 2), (1, 0), (2, 3)
C. (2, 5), (3, 8), (4, 11), (4, 12)
D. (1, 7), (2, 5), (3, 6), (4, 1)
Answer:
D
Step-by-step explanation:
In this case, we can define a function as a "relation and the set of ordered pairs that doesn't contain 2 pairs with matching components"
In A above, (3,-2), (2,-1), (3,4), (4,7)
There is a repeat of 3 in both (3, -2) and (3,4) so this can't be considered a function.
B. (0, 4), (1, 2), (1, 0), (2, 3)
There is a repeat of 1 in both (1, 2) and (1, 0), so this is not a function.
C. (2, 5), (3, 8), (4, 11), (4, 12)
4 is repeated in (4, 11) and (4, 12) so this cancel out its probability of it being a function.
D. (1, 7), (2, 5), (3, 6), (4, 1)
D. (1, 7), (2, 5), (3, 6), (4, 1)There is no repeat of components, so this is considered a function.
The farmer bought 2.5 sacks of fertilizer for $2.20 per sack and 4.5 sacks of essential soil for $1.80 for each sack from the supplier. If he gave a $15 bill to the supplier, how much would his change be?
Answer:
$0.50 or 50 cents
Step-by-step explanation:
If he bought 2 and a half sacks of fertilizer for $2.20 that means u multiply 2.20 2 and a half times so first lets divide 2.20 by 2 to find the solution of the "0.5" which is 1.10
2.20 times 2 equals 4.40 then we add the 1.10 so 4.40 plus 1.10 is $5.50.
For the 4.5 sacks of 1.80 we will do the same technique half o 1.80 is 90 cents so 0.90 and 4.5 times 1.80 is $8.10 we then add the 90 cents making it $9.
We then add the 2 totals of $9 and $5.50 which equals $14.50, the change would be 50 cents which in decimal form would be $0.50
Whoever answers first gets brainliest, 5 stars, and a thanks! Pls help asap!
Answer:
a. In the first step: Nick is supposed to subtract 1 1/2 instead of adding it
b. He should subtract 1 1/2 instead
c. 3 3/22
Step-by-step explanation:
Work for c.
4 7/11 - 1 1/2
4 14/22 - 1 11/22
3 3/22
-Chetan K
Answer:
3 3/22
Step-by-step explanation:
a) he subtracted 5 from a mixed fraction without converting it first
and for 1 1/2 - sign should be there
b) first convert mixed fraction and add the terms in the parentheses
c) 9 7/11 - (5 + 1 1/2)
= (9*11 + 7) / 11 - ( 5 + (1*2 + 1)/2 )
= 106/11 - (5 + 3/2)
= 106/11 - (5*2 + 3)/2
= 106/11 - 13/2
= lcm of 2 and 11 is 22
= (106*2 - 13*11) / 22
= (212 - 143) / 22
= 69/22
= 66 + 3 / 22
= 3 3/22
Add and write in standard form: (-3x^4 + 6x^3 - 43) + (8x^5 - x^2 + 12x + 10)
A.) 8x^5 - 3x^4 + 6x^3 - x^2 + 12x - 33
B.) x^5 - 5x^3 + 12 - 33
C.) -33 + 12x - x^2 + 6x^3 - 3x^4 + 8x^5
D.) -13x^14
Answer:
A.) 8x^5 - 3x^4 + 6x^3 - x^2 + 12x - 33
Answer: A
Step-by-step explanation:
Because the only thing that can be combined is - 43 and 10, you just need to combine that and write everything else out.
- 43 + 10 = - 33
Now just write everything out...
8x^5 - 3x^4 + 6x^3 - x^2 + 12x - 33
Which is A
Please help fast i will mark you if you get it right
Answer:
6/1 * 2/3= 4
5/6 - 3/4= 1/12
3/5 / 1/3= 9/5
Step-by-step explanation:
Stella is ordering a taxi from an online taxi service. The taxi charges $3 just for the pickup and then an additional $1.75 per mile driven.
Answer:
and wht is the question?
A=-4.5-2. B=0-3.5 a) What are the coordinates of A?
b) What are the coordinates of B?
Step-by-step explanation:
Coordinates of A are (-4.5, 2).
Coordinates of B are (0, -3.5)
Answer:
Both answers are true
Step-by-step explanation:
Coordinates of A are [-4.5,2]
Coordinates of B are [0,-3.5] { because it lies on the negative side of Y axis}
What does this sentence mean? Or write the formula
Find all sets of 2 consecutive positive integers with a sum that is at least 8 and less than or equal to 24.
Answer:
An odd integer is denoted by 2n+1 where n is an integer.
First odd integer = 2n+1
Next odd integer = 2n+3
8 ≦ (2n+1)+(2n+3) < 24
8 ≦ 2n+1+2n+3 < 24
8 ≦ 4n+4 < 24
Divide through by 4
2 ≦ n+1 < 6
Subtract 1 for all three sides:
1 ≦ n < 5
n ∈ {1,2,3,4}
Answer: {2n+1, 2n+3} {1,3}, {3,5}, {5,7
Step-by-step explanation:
67 is 0.12% of what number?
we have 67/x . 100% = 0.12 %
so x = 67.100%/0.12% = 55833,(3) ≈ 56
ok done . Thank to me :>
Help please Ill give brainlest!
Answer:
1. A.
2. C.
Step-by-step explanation:
1. these angles are corresponding because if the line passes through parallel lines 1-6, 2-5,3-7,4-8 will all be corresponding angles
2.
Since 2 and 5 are corresponding angles they will have the same degree measures
OMG FOR A BRAINLIST HELP ANSWER!!!!!!!!!
Answer:
C is answer
Step-by-step explanation:
7≥ 3x + 4 is it 4, 1, 2 or -1
Answer:
x≤1
Step-by-step explanation:
7≥3x+4
Intercambie los lados para que todos los términos de las variables estén en el lado izquierdo. Esto cambia la dirección de la señal.
3x+4≤7
Resta 4 en los dos lados.
3x≤7−4
Resta 4 de 7 para obtener 3.
3x≤3
Divide los dos lados por 3. Dado que 3 es >0, la dirección de desigualdad sigue siendo la misma.
x≤
3
3
Divide 3 entre 3 para obtener 1.
x≤1
PLS HELP WILL MARK BRAINLIEST!
Answer:
10 adultsStep-by-step explanation:
Convert 50 kg into pounds:
50*2.2 = 110 lbsNumber of adults the elevator can take:
1200 / 110 = 10 (rounded down)Answer:
The Elevator can hold 10 adults
Step-by-step explanation:
Step 1- Convert kg to lbs to get 110lbs
Step 2- Divide 1200 (the elevators max compacity) by 110 to get 10
Step 3- The elevator can hold 10 adults
-Rocketgamer360
Which value of m is a counterexample for the following statement?
If m is an odd prime number, then m + 2 is also prime.
Group of answer choices
7
3
5
9
11
Answer:
3
Step-by-step explanation:
because 3 is a prime number and 3+2=5 which is also a prime number
pls help!! need it to study fr the exam tmrw
Answer:
[tex] \frac{88}{4} \\ 22 \\ here \: u \: go[/tex]
Answer:
22 cm
Step-by-step explanation:
The angle subtended at the centre by the arc is 90°
This represents [tex]\frac{90}{360}[/tex] = [tex]\frac{1}{4}[/tex] of the circle
The arc length will be quarter of the circumference, that is
arc = [tex]\frac{1}{4}[/tex] × 88 = 22 cm
Find the roots of the equation: 6y^2 + 24 = 0
Answer:
y = ±2i
Step-by-step explanation:
6y^2 + 24 = 0
Divide both sides by 6
y^2 + 4 = 0
Subtract 4 from both sides
y^2 = -4
Take the square root of both sides
y = ±√-4
y = ±2√-1
y = ±2i
Answer:
Step-by-step explanation:
6y^2+24=0
/6
y^2+4=0
y^2=-4
y=±[tex]\sqrt{-4}[/tex]
y=±[tex]\sqrt{4}[/tex] i
Lucy has ridden 45 miles of a bike course. The course is 60 miles long. What percentage of the course has Lucy ridden so far?
Answer:
a
Step-by-step explanation:
$61.60 for parts and labor rate is $30.00 per hour total cost 136.60 how many hours will the job take? Write an equation and explain how you used it to find the number of hours the job will take.
Answer:
(136.60 - 61.60) / 30 = 2.5 hours
Step-by-step explanation:
First, subtract the cost of parts from the total: 136.60 - 61.60 = 75
Now you have the total labor cost. Divide by the hourly rate: 75 / 30 = 2.5
What is an equation of the line perpendicular to y=1/5x+2
That contains (15, -4)?
PLS HELP
Answer:
y+4=-5(x-15)
Step-by-step explanation:
Use point-slope form:
y-y1=m(x-x1)
m is the slope
x1 is the x coordinate of the point that the line contains
y1 is the y coordinate of the same point
We are already given the coordinates of the point (15, -4), so we just need m, the slope.
We are given that equation of the line is perpendicular to line y=1/5x+2. Perpendicular lines have slopes that are negative reciprocals of one another. The slope of y=1/5x+2 is 1/5, so all we need to do it get the negative reciprocal of 1/5.
The negative reciprocal of 1/5 would be -5. (switch the numerator and denominator and slap on a negative)
Now we know
m is -5
x1 is 15
y1 is -4,
so plug those into point-slope form: y-y1=m(x-x1)
y-(-4)=-5(x-15)
y+4=-5(x-15) is the answer
Find the coordinates of a point that divides the directed line segment PQ in the ratio 5:3.
Question 7 options:
A)
(4, 1)
B)
(4, 5)
C)
(2, 2)
D)
(–6, 6)
Answer:
B ......................