The total time they will be driving the second day is 8 hours
The total distance they are planning to go = 900 miles
Distance travelled on first day = 420 miles
Distance yet to be travelled on second day = Total distance - distance covered = 900 miles- 420 miles= 480 miles
The speed of the car = 60 miles per hour
60 miles of distance covered in time = 1 hour
1 mile of distance covered in time = 1 hour /60 miles = 1 minute
This is solved using Unitary Method
1 hour = 60 minutes
480 miles can be covered in time = 1 minute × 480 miles
= 480 minute
=8 hours
Hence, The total time they will be driving the second day is 8 hours
Distance and displacement are two quantities that appear to mean the same thing but have very different meanings and definitions. Distance is defined as "how much ground an object has covered during its motion," whereas displacement is defined as "how far out of place an object is."
Distance is defined as an object's total movement without regard for direction. Distance can be defined as how much ground an object has covered regardless of its starting or ending point.
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) consider the following sets s with binary operation ∗. which pairs (s,∗) form a group? if (s,∗) is not a group, which axioms fail? (a) let s be the set of integers z and let a ∗ b
The sum of two odd integers is an even integer. Therefore, the set S is not closed under addition.
The following subsets of Z (with ordinary addition and multiplication) satisfy all but one of the
axioms for a ring. In each case, which axiom fails?
(a) The set S of odd integers.
• The sum of two odd integers is an even integer. Therefore, the set S is not closed under addition.
Hence, Axiom 1 is violated.
(b) The set of nonnegative integers.
• If a is a positive integer, then there is no solution of a + x = 0 that is also positive. Hence, Axiom
5 is violated.
In general, to show that a subset S of a ring R, is a subring of R, it is sufficient to show that
(i) S is closed under addition in R
(ii) S is closed under multiplication in R;
(iii) 0R ∈ S;
(iv) when a ∈ S, the equation a + x = 0R has a solution in S.
Let a, b, c ∈ S ⊂ Z with a = rk, b = sk, c = tk.
(i) a + b = rk + sk = (r + s)k ∈ S
(ii) ab = (rk)(sk) = (rsk)k ∈ S
(iii) 0Z = 0 = 0 · k ∈ S
(iv) a = rs ∈ S ⇒ x = −rs ∈ S is a solution ofa + x = 0S
Thus, S is a subring of Z.
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Tell whether the figure has line symmetry. If so how many lines of symmetry are there?
2x+3y-4;where x=1 and y=-1 answer
Answer:
-5
Step-by-step explanation:
2x+3y-4
Evaluate for x=1,y=−1
(2)(1)+(3)(−1)−4
(2)(1)+(3)(−1)−4
=−5
help pls i hslsjdnkxkdjdjdj
Answer:
(a)20π
(b)74π
Step-by-step explanation:
(a) 2π(5) + (2π(10) × 1/2) = 2π(5) + 2π(5)
= 2π(10)
= 20π
(b) π(5)^2 + (π(10)^2 × 1/2) = 25π + 50π
=75π
Answer: P=20 cm S=75 cm²
Step-by-step explanation:
We have 2 semicircles with diameter d=10 cm and 1 semicircle with diameter D=20 cm
[tex]\displaystyle\\The\ length \ of \ the\ circle\ is\ \pi D\\The\ length\ of \ the\ semicircle \ is\ \frac{\pi D}{2}[/tex]
[tex]\displaystyle\\a)\\P=2*\frac{\pi d }{2} +\frac{\pi D}{2} \\\\P=\pi d+\frac{\pi D}{2} \\\\P=\pi *(d+\frac{D}{2} )\\P=\pi *(10+\frac{20}{3} )\\\\P=\pi *(10+10)\\\\P=20\pi \ cm\\\\[/tex]
[tex]b)\\\displaystyle\\The\ area \ of \ the\ circle\ is\ \frac{\pi D^2}{4} \\The\ area\ of \ the\ semicircle \ is\ \frac{\pi D^2}{8}\\\\S=2*\frac{\pi d^2}{8} +\frac{\pi D^2}{8} \\\\S=\frac{2*\pi *10^2}8} +\frac{\pi *20^2}{8} \\\\S=\frac{2*\pi*100 }{8} +\frac{\pi *400}{8} \\\\S=\frac{200\pi }{8}+\frac{400\pi }{8} \\\\S=\frac{600\pi }{8} \\\\S=75\pi \ cm^2[/tex]
Keeping the properties of exponents in mind, to what power must you raise the expression 7 to get 7 as the result?
What numbers are a distance of 1/2 unit from 3/5 on a number line?
Select the locations on the number line to plot the points.
info(i rather you draw on the image where the dot goes, if you can)-
picture-------------------------------------------------------
Step-by-step explanation:
hey try out the questions urself some tips would be to make the 1/2 and 3/5 have the same denominator as those shown in the diagram denominator means the number below
so1/2 x5 would give u 5/10 and 3/5 would give you 6/10
The tree in Naomi's backyard lost 120 leaves in 12 days.
Which expression below models the change in the number of
eaves per day?
a. 120 ÷ 12
D. -120 ÷ 12
c. 120
-12
d. -120
-12
The tree in Naomi's backyard lost 120 leaves in 12 days. Therefore, the required expression is A. 120÷12
Hope this helps :)
which operation should be used to solve x-5=12
The required solution of the given expression is x = 17, this is been evaluated by the association of alike terms.
What is simplification?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,
Given expression,
x - 5 = 12
Now,
Adding 5 on both sides,
x = 17
Thus, The required solution of the given expression is x = 17, this is been evaluated by the association of alike terms.
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I am offering 50 points to answer this and i will do it again and again
Answer: Between 2 and 7
Answer:
2 to 5
Step-by-step explanation:
i don't know because of i don't this transmission may not have the completed Questionnaire
. f(x) = 2x-5; Find f(-8)
Answer:
D.
Theres no need for a explanation :)
Let f(x)=5x-6. Write a function g whose graph is horizontal shrink of the graph of f by a factor of 1/4
The transformed function is g(x)=
The transformed function is g(x) = 20x-6.
The graph of the function y=f(ax) represents a Horizontal Shrink by a factor of "1/a" of the graph y=f(x) .
To find the horizontal shrink by a factor of 1/a we multiply the input by a .
In the given question
f(x)=5x-6 , is horizontally shrink by a factor of 1/4.
So we multiply the inputs by 4 .
On multiplying the inputs by 4 , we get
f(4x)=5(4x)-6 (...as 5*4=20)
Let g(x) represents the horizontal shrink of f(x) by factor 1/4 , So
g(x)=20x-6
Therefore , the horizontal shrink of the graph of f by a factor of 1/4 is g(x)=20x-6.
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1. There are 2 floors in the initial building.
The workers can build 3 floors each week.
When will the building have 15 more floors
than the INITIAL building?
week #
2
5
0 1
8
2
?
The number of weeks it would take the workers to build 15 more floors is 5 weeks.
How many weeks would it take to build 15 more floors?
The number of weeks it would take to build 15 more floors can be determined by dividing the number of additional floors by the number of floors the workers can build in one week.
Division is the process of grouping a number into equal parts using another number. The sign used to denote division is ÷. Division is one of the basic mathematical operations. The result of the division process is known as the quotient.
Number of weeks = additional floors ÷ number of floors that can be built in a week
15 ÷ 3 = 5 weeks
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The midpoint of \overline{\text{AB}} AB is M(-5, 0)M(−5,0). If the coordinates of AA are (-3, 3)(−3,3), what are the coordinates of BB?
The coordinate of B is (13, -3).
What is Midpoint of line?
Measure of Distance between the two points and then divide by two is known as midpoint of line.
Given that;
The midpoint of the line AB is M (-5, 0).
The coordinate of A is (-3, 3).
Now, Let the coordinate of the point B is (x, y )
Then, By definition of midpoint of two point,
(-3 + x / 2 , 3 + y / 2 ) = (-5, 0)
By compare we get;
-3+ x / 2 = -5
- 3 + x = 2 * 5
- 3 + x = 10
x = 10 + 3
x = 13
And, 3 + y / 2 = 0
3 + y = 0
y = -3
Hence, The coordinate of B (x, y) = (13, -3).
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Answer: (−7,−3)
Step-by-step explanation: I had the question
Write the following statement in the "if-then" form.
A side of a square measures 3 decimeters if the side's measure is 30 centimeters.
Choose the correct answer below.
OA. If the side of a square measures 3 decimeters, then the side's measure is 30 centimeters.
OB. If the side's measure is 30 centimeters, then the side of a square measures 3 decimeters.
If the side's measure is 30 centimeters, then the side of a square measures 3 decimeters, is the "if-then" form of A side of a square measures 3 decimeters if the side's measure is 30 centimeters.
A statement with an assumption and a conclusion is known as a conditional statement (also known as an if-then statement). The hypothesis is the initial clause, or "if," part of a conditional statement which is followed by the second, or "then," component of a conditional statement is the conclusion. The theory led to the conclusion.
Thus, option B is correct which is, if the side's measure is 30 centimeters, then the side of a square measures 3 decimeters.
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please help i will mark brainliest if u help
The correct option is D, -√15 < -2.75 < -2 3/8 < 15/2.
What is a number line?
A number line is just that – a straight, horizontal line with numbers placed at even increments along the length. It’s not a ruler, so the space between each number doesn’t matter, but the numbers included on the line determine how it’s meant to be used.
The value of the given numbers in the decimal form can be written as,
-√15 = -3.873
√15 = 3.873
15/2 = 7.5
-15/2 = -7.5
2 3/8 = 2.375
-2 3/8 = -2.375
Now, let's check in which options are the numbers arranged correctly.
A.) -√15 < -2 3/8 < -2.75 < 15/2
Since -2 3/8 > -2.75. Therefore, this is wrong.
B.) 15/2 < -2 3/8 < -2.75 < -√15
Since -2 3/8 > -2.75. Therefore, this is wrong.
C.) 15/2 < -2.75 < -2 3/8 < -√15
Since 15/2 > -2.75. Therefore, this is wrong.
D.) -√15 < -2.75 < -2 3/8 < 15/2
This is correctly arranged.
Hence, the correct option is D.
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What are the minimum and maximum temperatures recorded in this table?
Temperature (°C) 11 0 24.2 -32.4 -0.6 0.5
The minimum temperature recorded is -32.4°C and the maximum temperature is 24.2°C, as seen by basic comparison of values.
What is comparison of values?The process of comparison of numbers establishes the similarities between two numbers and determines which number is greater, smaller, or equal to another number.
Now, given values :11.0, 24.2, -32.4, -0.6, 0.5
Arranging them in ascending order: -32.4, -0.6, 0.5, 11.0, 24.2Thus, The minimum temperature recorded is -32.4°C and the maximum temperature is 24.2°C, as seen by basic comparison of values.
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What is the value of (-2) • (7) • (5) • (-4)= Enter your answer as a number, like this: 42
Answer:
280
Step-by-step explanation:
-2 x 7 = -14
-14 x 5 = -70
-70 x -4 = 280
Answer:
280
Step-by-step explanation:
PEMDAS
The PEMDAS rule is an acronym representing the order of operations in math:
ParenthesesExponentsMultiplication and Division (from left to right)Addition and Subtraction (from left to right)According to the order of operations (PEMDAS), when multiplying, work from left to right:
Given expression:
(-2) · (7) · (5) · (-4)
Multiply -2 by 7:
⇒ (-14) · (5) · (-4)
Multiply -14 by 5:
⇒ (-70) · (-4)
Finally, multiply -70 by -4, remembering that if both numbers are negative, the answer is positive:
⇒ 280
19yd.28in.-16yd.31in.
Answer:
2yds 33 in
Step-by-step explanation:
Convert everything to the lowest unit(inches) perform the operation and convert back
1 yard = 3 feet
1 foot = 12 in
1 yard = 3feet x 12in = 36 in
19yd, 28in = 19 x 36 + 28 = 684 + 28 = 712 in
16yd, 31 in= 16 x 36 + 31 = 576 + 31 = 607 inches
19yd, 28in - 16yd, 31 in = 712 - 607 = 105 inches
Divide by 36 to get the whole number of yards as quotient
105/36 with remainder of 33
∴ 19yd, 28in - 16yd, 31 in = 105 inches = 2yds 33 inches
We can verify this by converting 2yds 11inches to inches and seeing the values agree
2 yds 33 in = 2 x 36 + 33 = 105
Find the unit rate for each store. Then decide which offers the better buy.
Store A
5 bottles of juice for $10
Store B
9 bottles of juice for $21
2x + 6y = -3
12y = 4x + 20
Answer: x=-3.25
y=7/12
Step-by-step explanation:
2x + 6y = -3
12y = 4x + 20
6y = -3-2x
6y=20-(-3)+4x-(-2x)
6y=20+3+4x+2x
6y=23+6x
23+6x=-3-2x
23=-3-8x
-8x=26
x=-13/4
x=-3.25
12y = 4(-3.25) + 20
12y=-13+20
12y=7
y=7/12
Solve negative four and one fifth ÷ two and one fourth.
one and 39 over 45
negative one and 39 over 45
negative eight and one twentieth
negative nine and 9 over 20
Solving the fraction negative four and one fifth ÷ two and one fourth gives; negative one and 39 over 45
How to divide fractions?We want to divide the fraction negative four and one fifth ÷ two and one fourth. This can be expressed as;
-4¹/₅ ÷ 2¹/₄
Converting to improper fraction gives;
-21/5 ÷ 9/4
= -21/5 * 4/9
= -84/45
3 is a common factor that both numerator and denominator can be divided by to get; -28/15
Expressing the answer as a mixed fraction is; -1 ³⁹/₄₅
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Write 2 decimals that are equivalent to the decimal 9.50?
Please help
Answer: 9.5 and 9.500
Answer:
One would be 9/5 and another could be 1.8
4. State what additional information is required in order to know that the triangles are congruent by the SSS Triangle Congruence Postulate
The additional information required to prove the SSS Triangle Congruence Postulate is TR = JL
How to state the additional information required?The congruence postulate is given as:
SSS Triangle Congruence Postulate
The above means that the three sides of the triangles are congruent.
From the figure, the following side lengths are said to be congruent
ST and KL
SR and KJ
For the congruence postulate of the triangle to be SSS Triangle Congruence Postulate, then the third corresponding sides must be congruent
This is represented as:
TR = JL
Hence, the additional information required to prove the SSS Triangle Congruence Postulate is TR = JL
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Find the volume of this object.
Use 3 for π.
Volume of a Cylinder
V= πr²h
6 in
10 in
8 in
12 in V≈ [?]in³
The volume of the object which is made up of two different cylinders will be 383 cubic inches.
What is the volume of a right circular cylinder?Let r be the radius and h be the height of the cylinder. Then the volume of the cylinder will be given as,
V = π r²h cubic units
The object is made up of two cylinders. Then the volume of the object will be
V = π x (3)² x 8 + π x (5)² x 2
V = π(72 + 50)
V = 3.14 x 122
V = 383.08 ≈ 383 cubic inches
The volume of the object which is made up of two different cylinders will be 383 cubic inches.
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Help please
An airline charges an extra fee for a checked bag that weighs more than 50 pounds.
Your bag weighs 44.9 pounds.
You have a 2.5 pound hair dryer, a 1.3 pound souvenir, and a 3.6 pound pair of boots.
Which items can you add to the bag without paying the extra fee?
you can choose any of the 3 items, or any combination of two of the items unless the hair dryer and the boots, because the combined weight is 3.6lb + 2.5lb = 6.1 lb
Which items can you add to the bag without paying the extra fee?
The maximum weight that your bag can have is 50 pounds.
The actual weight of your bag is 44.9 pounds, so if we define x as the weight you can add, then we can write the inequality:
44.9 lb + x ≤ 50lb
Solving the inequality for x, we get:
x ≤ 50lb - 44.9 lb
x ≤ 5.1 lb
Now, the weight of the items are:
hair dryer = 2.5 lb
souvenir = 1.3 lb
boots = 3.6 lb
So you can choose any of the 3 items, or any combination of two of the items unless the hair dryer and the boots, because the combined weight is 3.6lb + 2.5lb = 6.1 lb
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Given the line y = -1, write the equation
of the line that is parallel to that line and
passes through (-3,5).
Answer:
Y+5=0
Step-by-step explanation:
Here,given eqn of line is 0.X+Y+1=0_____(i)
since required eqn is parallel to eqn (i)
0.X+Y+K=0____(ii)
passing point (-3,5)
putting the value of Y
5+K=0
.-.K=(-5)
r required eqn is Y-5=0
help like rn, like rn rn rn rn , thanks
Answer: 13π/6 √45
Step-by-step explanation:
[tex]\displaystyle\\\sqrt{11} +3\approx6.32\\\\\pi +3,8\approx6.94\\\\Hence,\\\\6.32 < x,6.94\\\\\frac{61}{10}=6.1 \notin\\\\\frac{13\pi }{6}\approx6.81\in\\\\\sqrt{45}\approx6.71\in \\\\6\frac{1}{9}\approx6.11\notin\\\\\sqrt{83}-3\approx6.11\notin[/tex]
Find the 6th term of the arithmetic sequence x+2, -6x-3, -13x-8,...
To the citizens of the country of Merka, there is no meal
better than a hot dog nestled securely in a hot dog bun. Relish is optional, mustard is not. The hypothetical market for hot dogs in Merka is graphed. Suppose that the price of hot dog buns decreases. Illustrate the impact of this change on the
market by manipulating the appropriate curve or curves.
The equilibrium price it hot dogs:
a) decreases
b) increases
c) remains the same
The equilibrium quantity of hot dogs:
a) increases
b) decreases
c) remains the same
The supply curve shifts:
a) left
b) right
The demand curve shifts:
a) left
b) right
Based on the price of hot dog buns decreasing, the impact on the market would be the equilibrium price of hot dogs decreases.
The equilibrium quantity of hot dogs decreases.
The supply curve shifts left. The demand curve shifts right.
What happens to the supply curve when prices drop?When the price of a good like the hot dog duns decreases, supplier will have less incentive to keep making it and so will reduce the quantity supplied to the market. This would mean that the supply curve would shift left.
The demand curve on the other hand would shift right because more people would demand the cheaper hotdogs. The equilibrium price which had fallen would then have to rise.
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determine the gradient of the line through (-1;2)and (0;-4)
Step-by-step explanation:
gradient = slope. or similar names.
it expresses the "steepness" of the line. how strongly is it going up or down or ... at all ?
it is represented by the ratio
(y coordinate difference / x coordinate difference)
when going from one point on the line to another.
for these 2 points we see (when going from the first to the second)
x changes by +1 (from -1 to 0).
y changes by -6 (from 2 to -4).
so the slope or gradient is
-6/+1 = -6