Answer:
Sorry it's late but it was C
The true option is (d) 5, 20; The rate of change is $5 per hour. The initial value is $20.
(a) The rate of change
Write out any two points from the table
(x,y) = (2,30) (4,40)
So, the rate is calculated using the following slope formula
[tex]Rate = \frac{y_2-y_1}{x_2 -x_1}[/tex]
This gives
[tex]Rate = \frac{40-30}{4-2}[/tex]
Simplify
[tex]Rate = \frac{10}{2}[/tex]
Divide the fraction
[tex]Rate = 5[/tex]
So, the rate is $5
(b) The initial value
This is the y value, when x = 0.
Represent this point with (0,y).
Calculate the slope (m) of the table using points (0,y) and (2,30).
So, we have:
[tex]m = \frac{30 - y}{2-0}[/tex]
This gives
[tex]m = \frac{30 - y}{2}[/tex]
Substitute 5 for m
[tex]\frac{30 - y}{2} = 5[/tex]
Multiply both sides by 2
[tex]30 - y = 10[/tex]
Collect like terms
[tex]y = 30 -10[/tex]
[tex]y = 20[/tex]
Hence, the initial value is $20
Read more about linear functions at:
https://brainly.com/question/15602982
In ΔABC, the measure of ∠C=90°, the measure of ∠A=63°, and AB = 35 feet. Find the length of CA to the nearest tenth of a foot.
Answer: 15.9 feet
Step-by-step explanation:
Answer:
15.9
Step-by-step explanation:
It takes 32 minutes to bike 8 miles on the trail. How long would it take to
bike 2 miles? Help please!!!!
Answer:
8 minutes cause 32/8 = 4 then 4 x 2 = 8
Step-by-step explanation:
plz help i will give brainliest
Answer:
I think that it may be y=1/2+10
correct me if im wrong
Step-by-step explanation:
State if each triangle is a right triangle.
Step-by-step explanation:
second one is right
I hope
Rakesh Travels 45 km in 54 minutes how much time will he take to travel 70 kilometre
Answer:
84 minutes
Step-by-step explanation:
45:54
70:x
45/54=70/x
45x=70x54 - cross multiply
x=70x54/45 - divide by 45
x=84
I need help with question 3 please
Answer:
there's nothing there..
Step-by-step explanation:
Answer:
i need the question to answer though
Step-by-step explanation:
WILL MARK BRAINLIEST TO THE FIRST PERSON
Answer:
5
Step-by-step explanation:
7^2 = (2(6)^1/2)^2 + BC^2 (Pyth. theorem)
BC = 5
Answer:
its supposed to be 6.08 but we can take of..08 so 6
Step-by-step explanation:
[tex]a + b = c \\ ( 2 \sqrt{6} ) {}^{2} + {b}^{2} = {7}^{2} \\ 2 \times 6 + {b}^{2} = 49 \\ {b}^{2} = 49 - 12 \\ {b }^{2} = 37 \\ \sqrt{b} {}^{2} = \sqrt{37} \\ b = 6.08 \: or \: 6[/tex]
Which of the following is not a Unit fraction.
Answer:
7/16
Step-by-step explanation:
unit fractions have 1 as their numerator.
Does anyone know this
what is the name for the median of the lower half of data values?
Which expressions are equivalent to (5g+3g+4)x2
A beetle was running along a number line...
Then, the bug ran from 57 to 81. What distance did it cover? If this run took the bug
8 seconds, what was its average speed?
The distance was
units and the average speed was
units per second
what is the y-value of the solution to the system:{3x+4y=-6,5x+2y=4
Answer:
y = -3
Step-by-step explanation:
3x + 4y = -6 then, 3x = -4y - 6, x = (-4y - 6)/3
5x + 2y = 4
substitute for x:
5(-4y - 6)/3 + 2y = 4
simplify:
(-20y - 30)/3 = 4 - 2y
-20y - 30 = (3)(4 - 2y)
-20y - 30 = 12 - 6y
-14y = 42
y = -3
check:
5x + 2(-3) = 4
5x = 10
x = 2
3(2) + 4(-3) = -6
6 - 12 = -6
-6 = -6
5(2) + 2(-3) = 4
10 - 6 = 4
4 = 4
Every row consists of 2,3 and 2 seats each. If there are 51 horizontal rows, and 13 seats are empty. How many passengers are on board?
Answer:
344
Step-by-step explanation:
Part of a cross-country skier's path can be described with the vector function r = <2 + 6t 2 cos(t), (15 − t)(1 sin(t))> for 0 ≤ t ≤ 15 minutes, with x and y measured in meters.
The derivatives of these functions are given by x′(t) = 6 − 2sin(t) and y′(t) = −15cos(t) + tcos(t) − 1 + sin(t).
Find the slope of the path at time t = 4. Show the computations that lead to your answer.
Find the time when the skier's horizontal position is x = 60.
Find the acceleration vector of the skier when the skier's horizontal position is x = 60.
Find the speed of the skier when he is at his maximum height and find his speed in meters/min.
Find the total distance in meters that the skier travels from t = 0 to t = 15 minutes.
https://www.coursehero.com/tutors-problems/Calculus/16028189-Part-of-a-cross-country-skiers-path-can-be-described-with-the-vector/
Sandy can hold her breath 5/6 minute. Adele can hold her breath 3/6 minute longer than Sandy. How long can Adele hold her breath?
Answer:
4/3 minute
Step-by-step explanation:
You can just add up both numbers and simplify it: 5/6+3/6=8/6=4/6.
Artie
25%
Len
20%
Wen
30%
Gina
25%
Artie, Len, Gina, and Wen divided a carton of baseball cards as shown in the circle graph above. If Wen's
share was 60 cards, what was Gina's share of the cards?
25
50
100
200
Answer:
50
Step-by-step explanation:
Wen: 30% of the total number of cards = 60 cards
Set this up as an equation
30/100 = 60/x
Cross multiply
30 × x = 100 × 60
30x = 6000
Divide both sides by 30 to isolate the variable
x = 200
There are 200 cards total
Gina: 25% of the total 200 cards
Set this up as an equation
25/100 = x/200
Cross multiply
25 × 200 = 100 × x
5000 = 100x
Divide both sides by 100 to isolate the variable
50 = x
Gina's share is 50 cards
9) help me pls I have the ANSWERS I just need to show the WORK
How would you “find “x” in the diagram?
Answer: D
9514 1404 393
Explanation:
We have to assume the triangle is a right triangle.
In a 30°-60°-90° right triangle the side lengths have the ratio ...
short side : long side = 1 : √3
This lets you write the proportion ...
x/15 = 1/√3
Multiplying by 15 gives ...
x = 15/√3 . . . . . . matching choice D
__
There are other ways to get there. One of them is ...
x = 15·tan(30°) = 15/√3
i’ll give a brainiest to the correct answer!!!!
If CA= 4x and CB= 8x-12 , what is the length of CA ?
Answer:
Step-by-step explanation:
CA and CB are both opposite equal 90 degree angles so are equal so we can say
8x-12=4x
4x-12=0
4x=12
x=3, since CA=4x
CA=4(3)=12
Determine which translations would map Figure L onto Figure M. Help please !!!!!!! Will be marking Brianliest !!!!!!!!!!!!!!!
Answer:
8 points left and 7 points downStep-by-step explanation:
Get the difference of one point on M and corresponding point on L, and find the difference of coordinates.
Lets take top right points:
(7, 9) and (-1, 2)The difference:
-1 - 7 = -8 ⇒ 8 points left2 - 9 = -7 ⇒ 7 points downAda writes down at random a whole number larger than 1 and smaller than 11. Find the probability that it is....
a) Odd
b) even
c)a perfect square
d) a power of 2
The difference between four times a number x and 5 is 24.
Answer:
4x - 5 = 24
x= 7.25
Step-by-step explanation:
4x - 5 = 24
4x= 24 + 5
x = 29 / 4 = 7.25
I hope im right!!
Can you guys please help me!!!
Answer:
It should be A
Step-by-step explanation:
I hope this helps
Use the work shown below to write the equation for a line that has a slope of Negative two-fifths and passes through (15, –2).
y = mx + b
1. Substitute the known values: negative 2 = negative two-fifths (15) + b. 2. Solve for b: negative 2 = negative 6 + b. b = 4.
What is the equation of the line in slope-intercept form?
Negative 2 = negative two-fifths x + 4
y = negative two-fifths (15) + 4
y = negative two-fifths x minus 4
y = negative two-fifths x + 4
Answer:
y=negative two fifths x plus 4
Step-by-step explanation:
DNA tbh ishrb jd ge kem is j.g cr. ks i.v rgjs gusnrie84b isbsuosb sojdl
Answer:
its A
Step-by-step explanation:
mark me brainliest
pls and ty
<3 anmol
What is the solution to the system of equations? y = x + 3 3x - 4y = -7
Answer:
x=-5 & y=-2
Step-by-step explanation:
Step 1: Solve y=x+3 for y:
y=x+3
Step 2: Substitute x+3 for y in 3x-4y =-7:
3x-4y=-7
3x-4(x+3)=-7
-x-12=-7 (Simplify both sides of the equation)
-x-12+12=-7+12 (Add 12 to both sides)
-x=5
-x/1=-5/-1 (Divide both sides by -1)
Step 3: Substitute -5 for x in y=x+3:
y=x+3
y=-5+3
y=-2 (Simplify both sides of the equation)
x=-5 and y=-2
Complete the number sentence to solve. Enter the answer in simplest form. Four students share 6 granola bars equally. How many granola bars does each student get? 6 ÷ = Each student's share is granola bars.
Answer:
1.5 bars of granola per student
Step-by-step explanation:
Number of students = 4
Number of granola bars = 6
Four students share 6 granola bars equally.
Each student gets = 6 ÷ 4
= 1 1/2
= 1.5 bars of granola per student
Each student's share is 1.5 granola bars.
The more often a lie is told, the more people will believe it. Many mathematical models for this psychological ploy exist
Answer:
hello your question is incomplete attached below is the complete question
answer : The vertical asymptote is not relevant since a negative population holds no relevance ( option 3 )
Step-by-step explanation:
attached below is the Graph of P(x) plotted using online tools as part of the solution requested by the question
From the attached graph vertical asymptote is x = 0
Also from the graph the x-intercept is (2, 0) which means that whenever a lie is told twice, Nobody believes the lie ( i.e. y = 0 when x = 2 )
What is half of one inch?
Answer: Half of a half an inch is a quarter of an inch. Which is more, 24 inches or 1 yard? Hope this helps can u give me brainliest
Step-by-step explanation:
Answer:
the half of one inch is 1.27cm
For the boxplot
What percent of the students are above 75%?
A: 75%
B: 25%
C: 50%
D: 0%
Answer:
0%
Step-by-step explanation:
the dots don't surpass 75% so 0% is the answer