Step-by-step explanation:
Identify the slope, m. This can be done by calculating the slope between two known points of the line using the slope formula. (or just count and plug it into rise over run format)
Find the y-intercept. This can be done by substituting the slope and the coordinates of a point (x, y) on the line in the slope-intercept formula and then solve for b.
PLEASE HELP ME Given the equation fine f(6)
F(x)=-4x-1
Answer:
-25 plug in 6 for x and minus one
Step-by-step explanation:
Answer:
F(6)=-25
Step-by-step explanation:
F(x) = -4x-1
F(6) means x=6
F(6)=-4(6)-1=-24-1=-25
F(6)=-25
Find x if f(x) = 2x + 7 and f(x) = -1.
a.5 b.-3 c.-4
Answer:
Answer c. -4
Step-by-step explanation:
Equations
Given:
f(x) = 2x + 7
We need to find the value of x such that:
f(x) = -1
Equating:
2x + 7 = -1
Subtracting 7:
2x = -1 - 7
Operating:
2x = -8
Dividing by 2:
x = -8 / 2 = -4
x = -4
Answer c. -4
please answersee image bellow
Answer:
62.832 mi.²Step-by-step explanation:
surface area = 2πrh + 2πr²
where r = 2 miles radius
h = 3 miles
plugin values into the formula
surface area = 2πrh + 2πr²
= 2π (2) 3 + 2π (2)²
= 37.699 + 25.133
= 62.832 mi.²
The table below shows the total number of hours Jessica Emily and Trina each studied after given a number of weeks
Answer:
Trina's number of hours studied is proportional to number of weeks studied
[tex] y = 2.5x [/tex]
Step-by-step explanation:
The ratio of each pair in any given table of values must be the same all through, for the relationship between two variables to be considered proportional.
In this case, we are looking at the relationship between number of weeks (x) and total number of hours studied (y).
The ratio for a pair is given as: y/x
If the ratio value for all pairs are the same in any of the given table, then it is proportional.
❌For Jessica's table of values, the first, second and third pair of values have a ratio of 2.5, however, the fourth pair has a different ratio of 4 (y/x = 40/10 = 4). So, this relationship is not proportional.
❌For Emily, the first, and second pair has a ratio of 2.5 while the third and fourth has different ratio. This also isn't a proportional relationship.
✅For Trina, the relationship between hours studied and the given number of weeks is proportional, because all pairs have the same ratio. That is: y/x = 5/2 = 10/4 = 20/8 = 25/10 = 2.5
✍️A proportional relationship can be written as [tex] y = kx [/tex].
Where,
y = total number of hours
x = number of weeks
k = constant of proportional = 2.5 (the ratio between y to x)
To generate an equation that represents the proportional relationship in the table of values for Trina, simply plug in the value of k in [tex] y = kx [/tex].
Thus, the equation would be:
✅[tex] y = 2.5x [/tex].
Answer:
give the dude brainliest
Step-by-step explanation:
Pls fast I need help plsssss
Answer:
ok so u know that all triangles in the inside are equal to 180
Step-by-step explanation:
1. 180-162= 18 angle a is 18, now to solve for b 180-122-18=40, angle b is 40
2.180-171=9 angle a is 9, now to solve for b 180-128-9=43, angle b is 43
3.180-35-22=132 angle c is 132, now to solve for angle d 180-22=158, angle d is 158
4. 180-20-29=131 angle c is 131, now to solve for angle d 180-20=160, angle d is 160
It costs $480.00 to rent an apartment on the Gold Coast for a weekend. Last year it cost $400.00.
What method below shows how you would calculate the % increase?
Answer:
The third choice.
(480 - 400) / 400 * 100.
Step-by-step explanation:
(480 - 400) / 400 * 100
= 80/400 * 100
= 1/5 * 100
= 20%.
The percentage increase method will be { [ 480 - 400 ] / 400 } x 100. The correct option is C.
What is the percentage?The Percentage is defined as representing any number with respect to 100. It is denoted by the sign %. The percentage stands for "out of 100." Imagine any measurement or object being divided into 100 equal bits.
The rent of an apartment is increased from $400 to $480.
The percentage change will be calculated as:-
Subtract $400 from $480 and you will get 80. Then divide 800 by 400 (because 100% = total) and you will get which means 20 %. Her hourly wage increased by 18%.
Percentage change = ( 480 - 400 ) / 400
Percentage change = 80 / 400
Percentage change = 0.2 x 100 = 20 %
Therefore, the percentage increase method will be { [ 480 - 400 ] / 400 } x 100. The correct option is C.
To know more about percentages follow
https://brainly.com/question/24304697
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Suppose you like to keep a jar of change on your desk. Currently, the jar contains the following:
13 Pennies 15 Dimes
29 Nickels 26 Quarters
What is the probability that you reach into the jar and randomly grab a dime and then, without replacement, a nickel?
Answer:
The probability is 435/6,806
Step-by-step explanation:
Firstly, the total number of coins in the jar is
13 + 15 + 29 + 26 = 83
The probability of selecting a dime is 15/83
Now we want to grab a nickel
Since we already selected a dime and we did not replace it, the number of total coins in the jar will be 83-1 = 82
So the probability of selecting a nickel this time is
29/82
So the total probability of the event in the described order is;
15/83 * 29/82
= 435/6,806
Which numbers make the comparison true? 29,651<
A 28,983
B 27,863
C 29,983
D 29,905
Which number is a factor of 92?
Answer:
46 is the factor
Step-by-step explanation:
92 / 2 = 46
po
20. Mr. Sprengel has a total amount of 91 pens and pencils. The ratio of pens to pencils is 6:7.
How many pencils does he have?
Answer:
Mr. Sprengel has 49 pencils.
Step-by-step explanation:
We are given that Mr. Sprengel has 91 pens and pencils.
We are also given that the ratio of pens to pencils is 6:7.
We can create an equation to solve for how many pencils Mr. Sprengel has.In this case, our unknown variable is how many pencils Mr. Sprengel has.Basically, the problem is telling us that for every 6 pens, there are 7 pencils.
Therefore, we can set up an equation and set our unknown (the amount of pencils) to be equal to x.
[tex]\displaystyle6x + 7x = 91\\\\13x = 91\\\\x = 7[/tex]
Now, we found our x. However, we need to plug this into a new equation and find how many pens and pencils Mr. Sprengel has.
Our new equations are:
[tex]\bullet \ 6(7) = y\\\\\bullet \ 7(7) = z[/tex]
In this case:
y will equal the amount of pens.z will equal the amount of pencils.Therefore, let's solve these:
[tex]6(7) = y\\\\y = 42\\\\\\7(7) = z\\\\z = 49[/tex]
Now, finally, we need to insert these values into our newfound equation:
[tex]\bullet \ y + z = 91[/tex]
[tex]42 + 49 = 91\\\\91 = 91 \ \checkmark[/tex]
We get a true statement, so we have determined that Mr. Sprengel has:
42 pens49 pencilsHELP LOL! IS THIS PROPORTIONAL EASY POINTS
Answer:
nonproportional
Step-by-step explanation:
nonproportional is what i think
Answer:
Yes, y= -7x is proportional
Step-by-step explanation:
Wright an equation in slope-intercept (y=Mx+b) form for each line.
Answer:
[tex] y = \frac{3}{5}x + 2 [/tex]
Step-by-step explanation:
Find slope (m) using two points (0, 2) and (5, 5):
[tex] slope (m) = \frac{y_2 - y_1}{x_2 - x_1} = \frac{5 - 2}{5 - 0} = \frac{3}{5} [/tex]
y-intercept (b) = 2 (i.e the value of y when x = 0)
Substitute m = ⅗ and b = 2 in [tex] y = mx + b [/tex]
The equation of the line would be:
✅[tex] y = \frac{3}{5}x + 2 [/tex]
Please help
Picture inserted
Multiple choice
Will appreciate it if you help!
Answer:
Step-by-step explanation:
Linear; can be written in the form y = 5x + 4
Suppose that hot dogs come in packs of 9 and buns come in packs of 7. Jim bought the same number of hot dogs as buns. It was the least number of each for
which this was possible.
Answer the following question
List the multiples of each qty:
7, 14, 21, 28,35,42,49,56,63
9, 18, 27, 36, 45, 54, 63
The least common multiple is 63
He bought 63 hotdogs and buns
Answer:
63
Step-by-step explanation:
Juan is going to make a small table with a circular top. He drew a circle with a diameter of 22 inches to
show his design.
22 in.
Which of these is closest to the area in square inches of the tabletop Juan is going to make?
O A. 69
OB. 138
O C. 380
OD. 1,520
CV
A
O EPIC
Answer:
C. 380
Step-by-step explanation:
Area of the tabletop = area of a circle
Area of a circle = πr²
radius (r) = ½*diameter = ½*22 = 11 in
Take π as 3.14
Plug in the values into the formula
Area of tabletop = 3.14*11² = 379.94
Area of tabletop would be approximately 380 in² (to nearest whole number)
Dawn works at the sponge factory and puts sponges in bags. She gets paid $0.12 for every sponge. If she got a paycheck for $864.00, then how many sponges did she put in bags?
A. 7,200
B. 23,000
C. 103
D. 865
Answer:
A.) 7,200
Step-by-step explanation:
Which expressions are equivalent to 5 ( -2k - 3 ) + 2k?
A. ( -5 - 3 ) - 8k
B. -15
C. None of the above
Answer:
C
Step-by-step explanation:
What is the equation of the line below?
Answer:
[tex] y = -\frac{2}{3}x + 1 [/tex]
Step-by-step explanation:
The equation of the line shown can be expressed in the slope-intercept formula as [tex] y = mx + b [/tex]
Let's find m = slope, and b = y-intercept.
Using two points on the line, (0, 1) and (1½, 0),
[tex] slope (m) = \frac{y_2 - y_1}{x_2 - x_1} = \frac{0 - 1}{\frac{3}{2} - 0} = \frac{-1}{\frac{3}{2}} = - \frac{2}{3} [/tex]
y-intercept, b is where the line intercepts the y-axis = 1.
To create an equation for the line, substitute m = -⅔, b = 1 in [tex] y = mx + b [/tex].
✅The equation would be:
[tex] y = -\frac{2}{3}x + 1 [/tex]
What is the slope of a line that is perpendicular to the line to the line represented by the equation y=1/3x+4
Answer:
C.
Step-by-step explanation:
Perpendicular slope means it's the opposite, meaning the perpendicular slope of 1/3 is -3 because -3 = -3/1. [note: if it's positive it should come out negative and just the opposite if it's a negative (the fraction should also be flipped)]
Which list orders the numbers from least to greatest?
3.-25.13,-23.12
A. 0 13,13.-25.-23.3
B. 25-23.13.13.3
C. -25.-27. 12. 13.3
D. 0-23-25, 13, 133
What is the Area of a circle with a radius of 2xy
Answer:
So the area of the circle with radius 2xy is 4px2y2.
How to use place value strategies to find the number of zero in the product
Answer:
Count them?
Step-by-step explanation:
Which rules define the function whose graph is
shown?
on
X<-2
-2
on
on
Osx<2
-4
on
2
-4X
x=
X=-4
Answer:from top to bottom it’s
-4,-x^2,x^2,4
Step-by-step explanation:
Hope this helps :)
You are running at a speed of 2 meters per second. At that speed, how many feet would you run in a minute?
1 meter = 3.28 feet
Answer:
393.6
Step-by-step explanation:
1 minute=60 seconds
60 seconds x 2 meters= 120 meters
3.28 feet x 120 meters=393.6
Answer: 120 meters
explanation: times 2 meters by 60 Seconds
Step-by-step explanation:
How do you do this question?
Step-by-step explanation:
Find the next term of the Taylor series.
f⁽⁰⁾(x) = x^⅓
f⁽¹⁾(x) = ⅓ x^-⅔
f⁽²⁾(x) = -²/₉ x^-⁵/₃
f⁽³⁾(x) = ¹⁰/₂₇ x^-⁸/₃
f⁽⁴⁾(x) = -⁸⁰/₈₁ x^-¹¹/₃
So the fourth term would be:
(-⁸⁰/₈₁ z^-¹¹/₃) (x − 1)⁴ / 4!
For 0.8 ≤ z ≤ 1.2, │f⁽⁴⁾(z)│is a maximum at z = 0.8. Therefore:
│R₃(x)│≤ │(-⁸⁰/₈₁ (0.8)^-¹¹/₃) (0.8 − 1)⁴ / 4!│
│R₃(x)│≤ 0.00014923
Looks like you accidentally wrote an extra zero.
Use the GCF and the distributive property to find the expression that is
equivalent to 36 - 48
A 6(6+8)
B. 12(3+4)
C. 2(18-24)
D. 419-12
a line with a slope of -2 passes through the point (3,-2). write the equation of line in point-slope form.
Answer:
y-(-2)=-2(x-3)
Step-by-step explanation:
point-slope form:y-y1=m(x-x1)
y-(-2)=-2(x-3)
-2+2=0
-3+2=(-1)
y=-2(x-1)
-2*x=(-2x)
-2*-1=2
y=-2x+2
-2 is the slope
2 is the y-intercept
hope this helps :3
if it did pls mark brainliest
Solve this inequality. Show all work.
-25(x+5)>100
x<−9
is your answer
x+5<−
25
100
x+5<−4
x<−4−5
x<−9
MNQP is a square. What are the values of t and f?
Answer:
t = 17.5
f = 12
Step-by-step explanation:
interior corner angles in a square = 90 degrees
4t + 20 = 90
4t = 90 - 20
4t = 70
t = 17.5
7f + 6 = 90
7f = 90 - 6
7f = 84
f = 12
HOWDY CAN I ET SOME HELP PLEASEEEEEEEEEEEEEEEEEEEEE WILL GIVE BRAINLIST
Answer:
Step-by-step explanation:
the answer is 1/5
Answer:
the answer is Z h e n g H e
Step-by-step explanation:
a p e x