Answer:
y = 1/2x - 2.5
Step-by-step explanation:
(15, 5) and (42, 18.5)
Slope:
m=(y2-y1)/(x2-x1)
m=(18.5 - 5)/(42 - 15)
m = (13.5)/27
m = 1/2
y - y1 = m(x - x1)
y - 5 = 1/2(x - 15)
y - 5 = 1/2x - 7.5
y = 1/2x - 2.5
Answer:
2 or 1/2
Step-by-step explanation:
change in y over change in x
you didnt define what what x and what was y so ill provide both answers and you can figure which is correct
42-15/18.50-5 =27/13.5 =2
18.50-5/42-15 =13.5/27 =1/2
3.7 as a fraction simplified
Answer:3 7/10
Step-by-step explanation:
:)
Complete the following
a)
3
5
20
b)
11
25
30
6.
Answer:
The answer should be B
David correctly graphed an inequality as shown below. -10-9-8-7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 The inequality David graphed was written in the form 7 S 2 What is an expression that could be put in place of the question mark so that the inequality would have the same solution set as shown in the graph?
Answer:
Step-by-step explanation:
Answer:
Step-by-step explanation:
What scale factor was used in the dilation of ABC to FED?
Answer:
SF= 2
Step-by-step explanation:
Side AB had the legnth of 4
the congruent side of EF has a length of 8
therefore the original shape doubled in size
(4x2=8)
The value of the function f(x) is 600 when x=0 and decreases by 9% for every one-unit increase in x. Complete the equation that represents the function f(x)
its a open answer please help
Answer:
[tex]f(x)=600(0.09)^x[/tex]
Step-by-step explanation:
Since f(x) decreases by 9% for every one unit increase in x, it means that f(x) is an exponential decay function. An exponential function is given by:
f(x) = [tex]ab^x[/tex]; where a is the value of f(x) at x = 0, b is the multiplier and is less than 0 for a decay.
Therefore since at x = 0, f(x) = 0. Hence a = 600. Also, b = 9% = 0.09.
The function f(x) can hence be represented as:
[tex]f(x)=600(0.09)^x[/tex]
5) Mario owns a plumbing business. He charges an hourly rate plus a onetime set up fee. His first job was 4 hours and he charged $450. His second job was 3 hours and he charged $675. If his set up fee is $150, how much does he charge per hour?
Answer:
Results are below.
Step-by-step explanation:
First, we need to calculate the variable income per job:
First job= 450 - 150= 300
Second job= 675 - 150= 525
Now, the hourly rate:
Hourly rate= total variable income / number of hours
First job= 300 / 4= $75
Second job= 525 / 3= $175
It is probably that the second job was 7 hours long. If not, he doesn't charge the same amount per hour
I would appreciate it if someone helped me:)
Answer:
24 more chocolotae chip cookies are sold
Step-by-step explanation:
CCC 7(15)+6 105+6=111
SC 6(15)-3 90-3 = 87
111-87 = 24
15+(√9 *7)/3
Simplify
Step-by-step explanation:
15+(3×7)/3
simplify by 3
15+7
22
Find the area of the parallelogram shown below.
6
14
square units
Answer:
Step-by-step explanation:
Answer:
84sq units
Step-by-step explanation:
To find the area of a parallelogram, it is the same formula to find a rectangles area. L x H or Base x Height.
Have a great day!
A scientist used a microscope to count the number of bacterial cells in a petri dish every hour. The graph shows the data collected.
Which function most accurately represents this data, where n is the number of bacteria and t is the time elapsed, in hours?
n = 2t
n = 2^t
n = t^2
n =
During a basketball game, Jeremy scored triple the number of points as Donovan. Kolby scored double the number of points as Donovan. If the three boys scored 36 points, how many points did each boy score?
Answer:
6.......................
Answer:
Jeremy scored 108 and kobly scored 72 and donvan scored 37
Step-by-step explanation:
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
Answer:
D
Step-by-step explanation:
Hello There!
I had made a graph with the given points plotted
If you were to draw a line straight through the middle of the points
most of the points would be near the line therefore the correlation is strong
The relationship is also positive because the points are going from left to right up
So we can conclude that the answer would be D
I included a picture of what I need help on.
Answer:
x = 4
Step-by-step explanation:
In similar triangles, the ratios of the length of the corresponding sides are equal.
[tex]\frac{CD}{ED}=\frac{GD}{FD}\\\\[/tex]
[tex]\frac{48}{5x-2}=\frac{40}{2x+7}\\[/tex]
Cross multiply,
48*(2x + 7) = 40*(5x - 2) {use distributive property: a*(b+c)=(a*b)+ (a*c)}
48*2x + 48*7 = 40*5x - 40*2
96x + 336 = 200x - 80 {Subtract 96x from both sides}
336 = 200x - 96x - 80
336 = 104x - 80 {Add 80 to both sides}
336 + 80 = 104x
416 = 104x {divide both sides by 104}
416/104 = x
x = 4
I cant seem to figure this out. Help
Answer:
108 cm^2
Step-by-step explanation:
This solid is a triangular prism.
The total surface area is made up of the area of 5 faces.
The front and rear faces are called the bases and are two congruent triangles.
The other three faces are three rectangles and form the lateral area.
SA = area of bases + lateral area
The area of the bases is 2 times the area of a triangle.
The lateral area is the sum of the area of the three lateral faces, 3 rectangles, and is also the product of the perimeter of the base and the height of the prism.
SA = 2 * bh/2 + PH
where
b = base of triangular base,
h = height if triangular base,
P = perimeter of the base, and
H = height of the prism
SA = 2 * (3 cm)(4 cm)/2 + (3 cm + 4 cm + 5 cm) * (8 cm)
SA = 12 cm^2 + 96 cm^2
SA = 108 cm^2
The expression (3 + 6i) + (5 - 10i) simplified is
Answer:
The answer is 8 - 4i
you collect the like terms
HELP ASAP ILL MARK BRAINLIEST
Answer:
300 voters
Step-by-step explanation:
1000 x 0.30 = 300
Answer:
300
Step-by-step explanation:
A fair dice is rolled
Work out the probability of getting a multiple of 2.
Give your answer in its simplest form.
Answer:
1/2
Step-by-step explanation:
you could get 2 or 4 or 6
Write the equation of the line which passes through (1, 2) and with slope of −1/3
in standard form.
Answer:
x + 3y = 7Step-by-step explanation:
The equation of a line which passes through (x₁, y₁) and with slope of m in point-slope form:
y - y₁ = m(x - x₁)
m = -¹/₃
(1, 2) ⇒ x₁ = 1, y₁ = 2
Therefore, the equation of the line which passes through (1, 2) and with slope of −1/3 in point-slope form:
y - 2 = -¹/₃(x - 1)
y - 2 = -¹/₃x + ¹/₃ {add ¹/₃x to both sides}
¹/₃x + y - 2 = ¹/₃ {add 2 to both sides}
¹/₃x + y = 2¹/₃ {multiply both sides by 3}
x + 3y = 7
How do you know which number in an exponential function controls how much it is stretched or compressed?
find a, b and c such that the number a , 7,b,23,c are in A.P please solve it
Answer:
since a,7,b,23,c are in A.P.
first term t1=a
second term t2=7
common difference (d)=7-a
forth term t4=a+3d
23=a+3(7-a)
23=a+21-3a
23=21-2a
2a=21-23
a=-2/2=-1
common difference =7-a=7--1=8
third term =a+2d=-1+2×8=15
:.b=15
5th term =c
a+4d=c
c=-1+4×8=31
a=-1
b=15
c=31
Step-by-step explanation:
what is stoichiometry ?
only for faizan !!!!
PLEASE HELPPPPPPPPPPPPPPPPPPPPPPPP
Answer:
The right answer is third option 68°.
lol I am having an exam ....no but help
.
when arturo makes a muffin recipe there is a priportional relationship between the number of teaspoons of bakin powder and the number of muffin , the table below shows that relationship.what is the constant of proportionality
Answer:
3
Step-by-step explanation:
It should be 3 because when you look at it divide them all and each one gives you 3. If it's not then sorry.
Look at this graph what is the y- intercept?
Please help me!
[One Step Inequalities]
Answer: B
Step-by-step explanation:
Answer:
x is greater than or equal to 4
Step-by-step explanation:
divide both sides by two, treating it as an equation
so x is greater than or equal to 4
Given the roots of 4 and -2 find the equations of the quadratic.
4 points
Answer:
p(x) = x² - 2x -8
Step-by-step explanation:
We need to find the quadratic equation with roots 4 and -2 , we know that if a and ß are the roots of equⁿ , then the polynomial is ,
[tex]\implies p(x) =k[ x^2-(\alpha + \beta)x+\alpha\beta] [/tex]
Where k is constant . Substitute respective values ,
=> p(x) = k [ x² - ( a + ß )x + aß ]
=> p(x) = k [ x² - ( 4-2) x + (4)(-2) ]
=> p(x) = k [ x² -2x - 8 ]
If k = 1 ,
=> p(x) = x² - 2x - 8
please answer with steps
Answer:
both of these.will be solved by angle sum property which states that sum of all interior angles is 180 degrees
in a
one angle is 30 degrees
other is right angle means 90 degrees
total sum of these angles is 120
total sum of all angle must be 180 degrees
so the third angle is 60 degrees
in b
one angle is 45 degrees
other is a right angle means 90 degrees
total sum of these angles is 135
total sum of all angles must be 180 degrees
so the third angle is 45 degrees
hope this helps
have a good day
thanks for points
write the following number in standard form plezz
7.6 x 10^3
10^3=1,000
Anything multiplied by 1 is that number. In this case, multiply 7.6 by 1, then add 3 zeroes.
---
hope it helps
Answer:
7,600
Step-by-step explanation:
when you have to multiply by 10 to a power, you just move the decimal to the left as many times as by the power
just help me again for 2 times
Answer:
A. 86.7
first, the base. length x width.
it's square, so
5.1 x 5.1= 26.01
then the sides. formula for a triangle is base times height divided by 2.
5.1 x 5.95= 30.345 divided by 2 is 15.1725
there are 4 sides, so multiply times 4
4 x 15.1725= 60.69
now, add the base to the sides
26.01 + 60.69= 86.7
Timothy has $50 in his bank account and saves $3 every week. Tina has $30 and saves $5 a week. When will they have the same amount of money? How much money?
Answer:
Timothy will have $150 in about 3 to 4 weeks.
Tina will have $150 in about 5 to 6 weeks.
Step-by-step explanation:
I hoped this helped!
Alyssa is going to invest in an account paying an interest rate of 4.3% compounded daily. How much would Alyssa need to invest, to the nearest dollar, for the value of the account to reach $330 in 17 years?
Answer:
159
Step-by-step explanation:
158.877856673=P
round:
P=159
Answer:
159
Step-by-step explanation: