Answer:
The rate of change of the distance between the cars at that instant is 5.46 meters per second
Step-by-step explanation:
Speed of first car = 7 m/s
Speed of second car = 3 m/s
At instant, distance of first car from intersection = 5 meters
distance of second car from intersection = 12 meters
Therefore, we have
Distance between both cars at intant = √(12² + 5²) = 13 m
Rate of change of distance is given by;
2ddd/dt = d(x² + y²)/dt = 2xdx/dt + 2ydy/dt
= 26dd/dt = 2×5×7 + 2×12×3 = 142
dd/dt = 142/26 = 5.46 m/s.
That is the rate of change of the distance between the cars at that instant = 5.46 meters per second.
What is the lowest price per item? $1.40 each $9 for 6 $6 for 3 $10 for 8
Answer:
$10 for 8
Step-by-step explanation:
it would be $1.25 each
hope this helps :3
if it did pls mark brainliest
Answer:
what the first person said
Step-by-step explanation:
Is this correct??????????
It costs $3.55 to make a sandwich at the local deli shop. To make a profit, the deli sells it at a price that is 160% of the cost. The sandwich sells for $___. (Make sure to enter the answer as a decimal number only. Do not enter special characters such as the dollar symbol.)
Answer:
5.68
Step-by-step explanation
Im not sure if this is correct but if im right its 5.68
WILL GIVE BRAINLIEST determine if the function is linear. if it is, find the rate of change
Answer:
No, the function isn't linear. I know because the following points don't form a line. The values for the last 3 are y=-x.
Step-by-step explanation:
I'm so sorry. I can't find the rate of change. Use this image to help.
Give me 5 fun facts!
Daddy Long Legs arent actually spiders.
The Great Wall of China can be seen from space.
The Pepper X has been declared the hottest pepper in the world.
iCarly was cancelled.
The black widow's venom is dangerous but cant hurt you if you are super healthy but you would still need medical attention.
Your welcome. :)
Answer:
1: American flags left on the moon will eventually get bleached white by the sun.
2: White-faced capuchin monkeys greet each other by sticking their fingers up each others’ noses
3: Gummy bears were originally called "dancing bears
4: The yo-yo was originally a weapon used in the Philippine jungle
5: The Greek name for the mosquito is "anopheles," which means “good for nothing
step-by-step explanation:
List the domain and range of the relation.
{(4-3), (8,8), (0.-3)(8.1) (4.3)}
The domain is
Answer:
(4,-3) Domain: 4. (8,8) Domain: 8. (0,-3) Domain: 0. (8,1) Domain: 8 (4,3) Domain: 4
Please help me.I'll give you some points
from where I stopped, you could solve using a scientific calculator
Plz help me quickly I’ll give brainlist!!!!!!!!plz
Answer: Fraction from: 1 1/8 Decimal Form: 1.125
Step-by-step explanation:
2 1/4 = 9/4
1/2= 1/2
9/4 * 1/2 = 9/8= 1 1/8
A taxi service charges $1.00 for the first 1/10
mile then $0.10 for each additional 1/10
mile after that.
Complete the table with the missing information.
9/10
2
3 1/10
10
Answer:
9/10=$1.08
2=$1.19
3 1/10=$1.30
10=$1.99
Step-by-step explanation:
9/10-1/10=8/10
8/10x0.10=0.08
1+0.08=1.08
Same process for all the rest
Calculate the force output by the larger piston of a hydraulic lift when a force of 800 N is exerted on the smaller piston. The areas of the two pistons are 20 cm2 and 500 cm2.
answer:
F2= 5kNstep by step explanation
Note the second diameter was used as 50cm and not 500cm
given
F1=800N
D1=20cm
A1=πD1^2/4
=3.142*20^2/4
=314.2cm^2
D2= 50cm
A2=πD2^2/4
=3.142*50^2/4
=1963.75cm^2
The pressure applied on the smaller relative to the bigger end is expressed as
F1/A1=F2/A2
substitute we have
800/314.2=F2/1963.75
cross multiply we have
F2=800*1963.75/314.2
F2=1571000/314.2
F2=5000N
F2=5kN
The larger Force is 5kN
What is the 100th term of 6,10,14,18
Answer:
406
Step-by-step explanation:
6+(4x100)
C. How much fence would Mr. Brown need
to fence the garden?
Answer:
Whats the area or perimeter?
If the measure of angle 1 is (3 x minus 4) degrees and the measure of angle 2 is (4 x + 10) degrees, what is the measure of angle 2 in degrees?
A horizontal line. A line extends from the line to form a 90 degree angle. Another line cuts through the 2 lines to form angles 1 and 2, which total 90 degrees.
32 degrees
38 degrees
58 degrees
66 degrees
Answer:
58 degrees
Step-by-step explanation:
3x-4+4x+10=90
7x+6=90
7x=84
x=12
4(12)+10=angle 2
58 degrees = angle 2
Answer:
C. 58 Degrees
Explanation:
I got it right on the quiz.
Hope this Helps!
Bonnie is making a dipping sauce. She mixes 150150150 milliliters of soy sauce with 100100100 milliliters of vinegar. How much soy sauce does Bonnie mix with every 111 milliliter of vinegar?
Complete Question
Bonnie is making a dipping sauce. She mixes 150 milliliters of soy sauce with 100 milliliters of vinegar. How much soy sauce does Bonnie mix with every 1 milliliter of vinegar?
Answer:
1.5 mm soy sauce
Step-by-step explanation:
Bonnie is making a dipping sauce. She mixes 150 milliliters of soy sauce with 100 milliliters of vinegar. How much soy sauce does Bonnie mix with every 1 milliliter of vinegar?
Hence:
100 mm vinegar = 150mm soy sauce
1 mm vinegar = x
Cross Multiply
100 × x = 150 × 1
x = 150 × 1/100
x = 1.5 mm soy sauce
Hence, Bonnie mixes with every 1 milliliter of vinegarwoth 1.5 mm soy sauce
Complete Question
Bonnie is making a dipping sauce. She mixes 150 milliliters of soy sauce with 100 milliliters of vinegar. How much soy sauce does Bonnie mix with every 1 milliliter of vinegar?
Answer:
1.5 mm soy sauce
Step-by-step explanation:
Bonnie is making a dipping sauce. She mixes 150 milliliters of soy sauce with 100 milliliters of vinegar. How much soy sauce does Bonnie mix with every 1 milliliter of vinegar?
Hence:
100 mm vinegar = 150mm soy sauce
1 mm vinegar = x
Cross Multiply
100 × x = 150 × 1
x = 150 × 1/100
x = 1.5 mm soy sauce
Hence, Bonnie mixes with every 1 milliliter of vinegarwoth 1.5 mm soy sauce
A line passes through the points (-15, 4) and (5,8). What is its equation in slope-intercept
form?
What does it mean
Answer:
y=1/5x+7
Step-by-step explanation:
just checked it on paper
Marissa bought x shirts that cost $19.99 each and y pairs of shorts that cost $14.99 each. The next day she went back to the store and bought 3 more shirts that cost $19.99 each and 4 more pairs of shorts that cost $14.99 each. Which expression represents the total amount Marissa spent? StartFraction x + 3 over 19.99 EndFraction + StartFraction y + 4 over 14.99 EndFraction StartFraction 3 x over 19.99 EndFraction + StartFraction 4 y over 14.99 EndFraction 19.99 (x + 3) + 14.99 (y + 4) (3 x) 19.99 + (4 y) 14.99
Answer:
19.99(x+3)+ 14.99(y+4)Step-by-step explanation:
Step one:
given data
day one
x shirts that cost $19.99 each and
y pairs of shorts that cost $14.99 each.
Day two
3 more shirts that cost $19.99 each and
4 more pairs of shorts cost $14.99 each.
Step two:
the total number of shirts is
x+3
and the total number of shorts is
y+4
The total cost is ex[ressed as
19.99(x+3)+ 14.99(y+4)
Answer:
its c!!
Step-by-step explanation:
Enter the next three numbers of the repeating decimal produced by the fraction 4/7
Answer:
.571
Step-by-step explanation:
4/7 = .571
Find the measure of the complementary angle for letter S, 14 degrees.
Answer:
The complementary angle for letter S will be: 76°
Step-by-step explanation:
As we know that two angles will be complementary if their measures add to 90°.
Given the angle of letter S = 14°
Let suppose the other measuring complementary angle is m∠A.
so the equation becomes
So
14° + m∠A = 90°
m∠A = 90° - 14°
= 76°
Therefore, the complementary angle for letter S will be: 76°
In Triangle JKL, ∠J is congruent to ∠L. Triangle J K L is shown. Ray L K extends beyond point K to form an exterior angle that is labeled sixty-seven and eight tenths degrees. What is the measure of ∠L? Enter the correct answer in the box.
Answer:
m<L = [tex]33.9^{o}[/tex]
Step-by-step explanation:
Triangle JKL is an isosceles triangle, given that <J ≅ <L. An isosceles triangle has two of its angles and sides to be equal.
The exterior angle formed = [tex]67.8^{0}[/tex]
But,
<J + <L = [tex]67.8^{0}[/tex] (the sum of two opposite interior angles is equal to the exterior angle)
Let <J ≅ <L be represented by a, so that;
a + a = [tex]67.8^{0}[/tex]
2a = [tex]67.8^{0}[/tex]
a = [tex]\frac{67.8^{o} }{2}[/tex]
= [tex]33.9^{o}[/tex]
The measure of <L is m<L = [tex]33.9^{o}[/tex] (m<L =
Thus,
m<J ≅ m<L = [tex]33.9^{o}[/tex]
Andre has 60% of his goal of $70 saved for his trip. How much has he saved so far?
Answer:
42$
Step-by-step explanation:
So there's an easy way to know this.
100%--$70
60%--x
cross multiply
100x=4200
÷100 ÷100
______________
x=42
So he saved 42$. Hope this helps :D
5 footballs to 9 baseballs,
The ratio of the number of footballs to the number of baseballs is,
The ratio of the number of baseballs to the number of footballs is,
Answer:
footballs to baseballs is 5:9
baseballs to footballs is 9:5
Step-by-step explanation:
football to baseball: there is 5 footballs and 9 baseballs
baseball to football: there is 9 baseballs to 5 footballs
Answer:
5:9
9:5
Step-by-step explanation:
It is Saturday morning and Jeremy has discovered he has a leak coming from the water heater in his attic. Since plumbers charge extra to come out on weekends, Jeremy is planning to use buckets to catch the dripping water. He places a bucket under the drip and steps outside to walk the dog. In half an hour the bucket is ⅕ of the way full.
a. Using a table, determine the unit rate that water is leaking in terms of buckets of water per hour?
I will give you brianliest if you help me!!!
Answer:
the bucket is filled 2/5 every hour.
Step-by-step explanation:
PLZ HELPPPP HElPPPPPPPPPPP HELPPPP ME
Answer:#1.
A=the amount of miles traveled and gallons of fuel
B=Y is the first one it is the amount of miles traveled
C=30x 150
#2.
A=3x 602
B=height of tree inches
C= the number of months
Step-by-step explanation:
i have already had this question
Medical researchers studying a medication in male and female patients 20 to 29 years old noticed that, up to a certain amount, a larger concentration of an active ingredient lead to greater levels of symptom relief.
What is the explanatory variable?
A) age of patient
B) gender of patient
C) amount of symptom relief
D) concentration of active ingredient
Answer:
D
Step-by-step explanation:
The required explanatory variable is concentration of active ingredients. Option D is correct.
Given that,
From the paragraph, "Medical researchers studying a medication in male and female patients 20 to 29 years old noticed that, up to a certain amount, a larger concentration of an active ingredient lead to greater levels of symptom relief." it is to be determined which is an explanatory variable.
The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
Here,
A) age of patient = Not explanatory
B) gender of the patient = Not explanatory
C) amount of symptom relief = Not explanatory
D) concentration of active ingredient = Explanatory
Thus, the required explanatory variable is the concentration of active ingredients. Option D is correct.
Learn more about simplification here: https://brainly.com/question/12501526
#SPJ2
If the measurement of Angle 1 = 160 degrees, what is the measurement of Angle 2?
A. 40
B. 35
C. 20
Answer:
C
Step-by-step explanation:
im pretty sure it this because it would make 180 degrees ;-;
Answer:
20 degrees
Step-by-step explanation:
angles on a straight line/ straight line angles/ supplementary angles = 180 degrees
angle 1 + angle 2 = 180 degrees
160 + angle 2 = 180
angle 2 = 180 = 160
angle 2 = 20 degrees
The freezing point of of gasoline is about -50 degrees Celsius, and the freezing point of water is 0 degrees Celsius. What is the difference between the freezing point of water and gasoline? Explain your answer.
Answer:
the difference is that -50 is -50 celsius from 0 hope this helps at all!?
Step-by-step explanation:
Answer:
50
Step-by-step explanation:
0 is larger then -50 and you want the difference so minus them
0-(-50) now when 2 negative signs meet like this they turn to addition
0+50 which is 50
their difference is 50
what is ( n^2+6n-4)(2n-4)
Answer: 2
3
+
8
2
−
3
2
+
1
6
Step-by-step explanation:
Which graph shows the solution set for 2 x + 3 greater-than negative 9? A number line going from negative 8 to positive 2. An open circle is at negative 3. Everything to the left of the circle is shaded. A number line going from negative 8 to positive 2. An open circle is at negative 3. Everything to the right of the circle is shaded. A number line going from negative 8 to positive 2. An open circle is at negative 6. Everything to the left of the circle is shaded. A number line going from negative 8 to positive 2. An open circle is at negative 6. Everything to the right of the circle is shaded.
Answer:
Step-by-step explanation:
2x+3> -9
2x > -9-3
2x > -12
x > -12/2
x > -6
An open circle is at negative 6. Everything to the right of the circle is shaded.
Answer:
d
Step-by-step explanation:
cuz the top person said so and i had to use my brain to know which one they were talking about
The gallons of gasoline used on a car trip varies directly as the number of miles driven. If 25 gallons of gasoline has been used after driving 700 miles,how many gallons of gasoline would be used after driving 1000 miles? Round your answer to the nearest tenth
Answer:
35.7 gallons
Step-by-step explanation:
Given that:
Distance traveled = 700 miles
Gasoline used = 25 gallons
The gallons of gasoline used are directly proportional to the number of miles traveled.
To find the gallons of gasoline to be used after driving 1000 miles, we can use the unitary method in which we first of all find, how much gallons of gasoline would be used for 1 mile and then multiply the value with 1000 to find the answer.
700 miles are traveled by gallons of gasoline = 25
1 mile is traveled by gallons of gasoline = [tex]\frac{25}{700}[/tex]
1000 miles are traveled by gallons of gasoline = [tex]\frac{25}{700}\times 1000 = \bold{35.7\ gallons}[/tex]
If (x + 7) is a factor of f(x), what is the value of f(-7)?
Answer:
The answer is 0.
Step-by-step explanation:
Simply plug in -7 for x as they want to see what the value of the function is when x=-7.
You can then just add -7 and 7.
7 + -7 = 0
So the answer is 0