Answer:
50 km/h
Step-by-step explanation:
so you traveled total of 350 (km) in 7 (hours) right?, just take 350, divide it by 7, which will give you km/h. (or 50 km/h) and then when you add a direction it like "west" it's no longer a speed it's a velocity.
Displacement given (in metres) = (350 × 1000)m.
Displacement = 350000 metres.
Time = (7× 3600) seconds
Time = 25200 seconds.
Velocity = Displacement / Time
Velocity = 350000 / 25200
Velocity = 13.89m/s
Approximately, Velocity = 14m/s.
Solve the equation f(x) = -9. What is f^-1(-9)?
Answer: f(x) = 9 //////
Can you help me please i will give you a branlist and make sure it roght
Answer:
x=20
Step-by-step explanation:
Find the missing side lengths.
Answer:
a.180-10
[tex]180 - 10 \sqrt{3 } - 60[/tex]
=use your calculator
Describe an “easy” method when multiplying or dividing a decimal by powers of ten.
Answer:
Move the decimal.
Step-by-step explanation:
Multiply by 10, move decimal place one place to the left. Divide by ten, move one to the right.
which expression is eqivalent to 9a +12
[tex]3(3a + 4)[/tex]
this the anwers
Answer:
An easy way to do it,is just multiply both terms by a number 2 (9a+12)=18a+24 it doesn't have to be 2, it can be any number
Hope this Helps:)
Since the war has started, you have lost 1/4 of your total body weight. If you now weigh 150 lb, how much did you weigh when the war started?
Answer:
200
Step-by-step explanation:
1/4 of 150 would be 50
If you lost 1/4 of 200
200 - 50
You would get 150
Therefore your answer is 200
Also, think of it this way, if you lost 1/4 of your body weight, 150 is 3/4 of your entire body weight- so the other 1/4 would be 50
50 x 4 = 200
1/4 = 50
2/4 = 100
3/4 = 150
4/4 = 200
A câmera is capable of snapping 1/2 of a picture per second how long will it take the camera to snap 6 pictures
Answer: 12 seconds
Step-by-step explanation:
Step 1: Find the unit rate
1÷0.5=2
1 picture takes 2 seconds
Step 2: Find amount of time taken to snap 6 pictures
2*6= 12
Ming Jie is playing an online game. He earns 5 points when his arrow hits the red targets and loses 2 points when his arrow hits the blue targets After some arrows, he earned 65 points.
(a) What is the least number of arrows he used to achieve 65 points?
(b) To win the game, he cannot use more than 30 arrows to earn at least 80 points What is the most number of blue targets he can hit?
Answer:
A) 13 B) He can hit 20 red targets and hit 10 blue targetsStep-by-step explanation:
Find the values of a, b, and c such that the equation y=ax2+bx+c has ordered pair solutions (1,16), (−1,−2), and (0,−1). To do so, substitute each ordered pair solution into the equation. Each time, the result is an equation in three unknowns, a, b, and c. Then solve the resulting system of three linear equations in three unknowns, a, b, and c.
Answer:
c = -1
b = 9
a = 8
Step-by-step explanation:
16 = a × 1² + b × 1 + c
-2 = a × (-1)² + b × (-1) + c
-1 = a × 0² + b × 0 + c .........-> -1 = c
16 = a + b + c
-2 = a - b + c
16 = a + b - 1
-2 = a - b - 1
a + b = 17
a - b = -1 .......-> a = b - 1 ........ a = 9 - 1 = 8
(b - 1) + b = 17
2b - 1 = 17
2b = 18 .......-> b = 18/2 = 9
Answer:
y = 8x² +9x -1
Step-by-step explanation:
The coefficients of the quadratic function can be found from three points by substituting the point values into the equation and solving for the coefficients.
The equation we want to find coefficients for is ...
y = ax² +bx +c
For point (1, 16), the equation is 16 = a(1²) +b(1) +c
For point (-1, -2), the equation is -2 = a(-1)² +b(-1) +c
For point (0, -1), the equation is -1 = a(0) +b(0) +c
__
The last of these equations gives a value for c (c=-1). Substituting that into the other two gives the equations in a and b as ...
a + b = 17
a - b = -1
Adding the two equations gives ...
2a = 16 ⇒ a = 8
Subtracting the second from the first gives ...
2b = 18 ⇒ b = 9
Then the desired quadratic equation is ...
y = 8x² +9x -1
Find the value of the trig functions indicated.
Answer:
Step-by-step explanation:
secθ = 17/15
Don claims that perpendicular lines are lines that intersect such that at least one of the angles is a right angle.
Determine whether each statement below justifies the claim. Select Yes or No for each statement
Yes No
Intersecting lines allow for the creation of four angles with a common vertex
If one of the angles is a tight angle, the angle vertical to it must also be a right angle
Because near pals are complementary the remaining two angles must also be right angles
A) Intersecting lines allow for the creation for angles with a common vertex
B) if one of the angles is a right angle, the angle the vertical to it must also be a right angle
Step-by-step explanation
C) is not true because linear pairs are supplementary not complementary because a line = 180°
B) it’s true because they are corresponding vertical angles
A) it’s true because they all have the same starting point or vertex
The statements that justifies don's claim about perpendicular lines being lines that intersect such that at least one of the angles is a right angle are; Option A; Intersecting lines allow for the creation of four angles with a common vertex.
Option B; If one of the angles is a tight angle, the angle vertical to it must also be a right angle
This is about perpendicular lines and whether they form right angles upon intersection. To answer this, let us look at the options; Option A; Yes, this statement is true because when a perpendicular line intersects another one, they will form 4 angles since they will all have the same starting point or common vertex.Option B; Yes, this statement is true because from corresponding angles theorem, we can say that they are corresponding vertical angles because they are congruent due to the transverse perpendicular line.Option C; No, this statement is not true because the angles would form linear pairs and as such since angles on a line sum up to 180°, it will also occur here and as such we can say they are supplementary angles.Read more at; brainly.com/question/18373668
The dimensions of this figure are changed so that the new surface area is exactly 12 what it was originally.
What is the new surface area?
Enter your answer as a decimal in the box.
yd²
Complex solid composed of rectangular prisms in an L shape. The height of the taller side of the L shape is labeled 8.4 yd. The height of the shorter side of the L shape is labeled 3.8 yd. The width of the of the shorter section of the L shape is labeled 4.3 yd. The length of the taller section of the L shape is labeled 10.1 yd and the width is labeled 2 yd. PLEASE HELP
Answer:
The answer is 181.61.
Answer: 181.61 :)
Step-by-step explanation:
June is driving from Brookline, Massachusetts to Brooklyn, new york. The cities are 200 miles apart. Pretend June lives in a world in which she encounters no traffic jams and can drive at a constant speed of 50mph the entire way. Consider the following function. the distance June has traveled, c, is a function of her driving time, t.
It took June 4 hours to get from Brookline to Brooklyn.
Time calculationGiven that June is driving from Brookline, Massachusetts to Brooklyn, New York, and the cities are 200 miles apart, and she can drive at a constant speed of 50mph the entire way, to determine the function that solves the time June takes to complete the route, the following calculation must be made:
C / Constant speed = T200 / 50 = T4 = T
So it took June 4 hours to get from Brookline to Brooklyn.
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Answer:
4 hours
the time(t)=4
If Nathan scoops 8.5 cups of ice cream in 2 minutes, how many scoops of ice cream can he do in 8 minutes?
Answer:
34
Step-by-step explanation:
in one minute he scoops 4.25 cups which you get by dividing 8.5 and 2 and then you multiply that by 8 and you get 34 cups
Answer:
34 scoops
Step-by-step explanation:
If I were you I would find how many cups nathan can scoop in a minute because not only its the easiest way it's the fastest so what you can do to find that is divide 8.5 by 2 which is 4.25.
since you know how many he can scoop in a minute you can do 8 times 4.25 because their is 8 minutes and 8 times 4.25 is 34
The possible results of an experiment are called its
Classify the triangle by its sides.
Answer:
equilateral triangle
Step-by-step explanation:
because only equilateral triangle has all three angles of 60 degree
3x – 2y = -1
y = -x+ 3
Is (1, 2) a solution of the system?
Help Pls
Answer:
Yes
Step-by-step explanation:
If you plug (1, 2) into the system, the equation would be correct.
Original Equation:
3x - 2y = -1
Plug in (1, 2)
3 - 4 = -1
Original Equation 2:
y = -x + 3
Plug in (1, 2)
1 = -2 + 3
Hope I helped :)
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In a recent year , 1286 female deer were born in Clark country.That is 93 fewer than the number of male deer born .How many male deer were born that year?
Answer:
1382 Male deer.
Step-by-step explanation:
1289 + 93 = 1382
Written in the given rational numbers into the correct
Answer:
-4/3, -4/5, -2/3, 7/10, 7/8
Step-by-step explanation:
The order from left to right is:
1. -4/3
2. -4/5
3. -2/3
4. 7/10
5. 7/8
Hope this helps :)
Hey besties! Can you solve this question i will make you brainlist
three friends shared a basket of strawberries. Sue got 2/7 of the strawberries. Jim got 54 more strawberries than sue. Dan got 78 strawberries. How many strawberries were there in the basket.
Answer:
Step-by-step explanation:
Let x be the total no. of strawberries, Let Sue be "S", Let Jim be "J" and Dan be "D"
S = 2x/7
J = 54+S -> J = 54+(2x/7)
D = 78
J+D = 5x/7
54+(2x/7)+78 = 5x/7
132+2x/7 = 5x/7
132 = (5x/7)-(2x/7)
132 = 3x/7
132*7 = 3x
924/3 = x
x = 308.
Therefore, there were initially 308 strawberries in the basket.
Of which; Sue had two-sevenths: 88, Jim had 142 and Dan had 78
To verify our answer, add these to see if we get 308
S+J+D = 308
88 + 142 + 78 = 308
Franco grew 2,820 flowers with 47 seed packets. With 67 seed packets, how many total flowers can Franco have in his garden? Assume the relationship is directly proportional.
Answer:
941
Step-by-step explanation:
Which situation could be described by the following expression: 6(n+3) *
Cecilia simplified an expression. Her work is shown below.
(6 and one-half + 2 and three-fourths) minus 1.5 times (4.5 divided by 0.5)
Step 1 9 and one-fourth minus 1.5 times (4.5 divided by 0.5)
Step 2 7.75 times (4.5 divided by 0.5)
Step 3 7.75 times 9
Step 4 69.75
Where did Cecilia make her first mistake?
step 1
step 2
step 3
step 4
Answer: second step.
Step-by-step explanation:
you then have to distribute the answer not subtract 9 1/4 from 1.5
you have to do the parenthesis next
4.5/0.5=45/5=9
then
1.5*9= 13.5
then
9.25-13.5 which I think you are capable of solving
Answer:
Step 2Step-by-step explanation:
Given work on simplification
(6 and one-half + 2 and three-fourths) minus 1.5 times (4.5 divided by 0.5) (6 1/2 + 2 3/4) - 1.5 (4.5 ÷ 0.5)Step 1 9 and one-fourth minus 1.5 times (4.5 divided by 0.5)
9 1/4 - 1.5 (4.5 ÷ 0.5)This is ok as first step is solving parenthesisStep 2 7.75 times (4.5 divided by 0.5)
7.75 (4.5 ÷ 0.5)Incorrect, subtraction should be the last stepUsing long division, what is the quotient of 3x^4 + 20x^3+ 14x^2+ 17x + 30 and X+6?
See the attatched file.
Given p: Today is October 6 and q: Today is Nina's birthday.
Match the conditional statement to its symbolic form.
----
If today is Nina's birthday, then it is October
6.
qp
If today is not October 6, then it is not Nina's
birthday
p>
If it is not Nina's birthday, then today is not
October 6.
---
If today is October 6, then it is Nina's
birthday
Answer:
Step-by-step explanation:
Find the measure of angle b.
2. Which is the absolute value of 9 and -9?
А -9
с 9
В 0
Answer:
0
Step-by-step explanation:
9-9=0
-9 is basically symbolizing subtraction
Which point would map onto itself after a reflection across the line y=-x? O(4,-4) O(4,0) O(0, 4) O (4, 4)
Answer: well it’s not b or c so I’m guess it (4,-4) if I’m wrong I’m sorry
Step-by-step explanation:
I’m taking it on edge 2020 rn
The point O(4,-4) would map onto itself after a reflection across the line y=-x.
What is Graph?Graph is a mathematical representation of a network and it describes the relationship between lines and points.
To find out which point would map onto itself after a reflection across the line y=-x, we need to reflect the given points across the line and see which one ends up in its original position.
The reflection of a point (x, y) across the line y=-x is (-y, -x).
Let's apply this formula to each given point:
The reflection of O(4,-4) across y=-x is (-(-4), -4) = (4, -4), which is same as the original point.
The reflection of O(4,0) across y=-x is (0, -4), which is not the same as the original point.
The reflection of O(0,4) across y=-x is (4, 0), which is not the same as the original point.
The reflection of O(4,4) across y=-x is (-4, -4), which is not same as the original point.
Therefore, the point O(4,-4) would map onto itself after a reflection across the line y=-x.
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An airline company claims in a recent advertisement that more than 94% of passenger luggage that is lost is recovered and reunited with the customer within 1 day. Hunter is a graduate student studying statistics. For a research project, Hunter wants to find out whether there is convincing evidence in support of the airline company's claim. He randomly selects 315 passengers of the airline whose luggage was lost by the airline and found that 276 of those passengers were reunited with their luggage within 1 day. Are all of the conditions for this hypothesis test met, and if so, what are the null and alternative hypotheses for this hypothesis test?
Answer:
The null hypothesis is [tex]H_o : p \le 0.94[/tex]
The alternative hypothesis is [tex]H_a : p > 0.94[/tex]
Step-by-step explanation:
From the question we are told that
The sample size is n = 315
The population proportion is p = 0.94
The number of luggage that was recovered and reunited with the passenger in one day is k = 276
Generally the sample proportion is mathematically represented as
[tex]\r p = \frac{k}{n}[/tex]
=> [tex]\r p = \frac{276}{315}[/tex]
=> [tex]\r p = 0.876[/tex]
The null hypothesis is [tex]H_o : p \le 0.94[/tex]
The alternative hypothesis is [tex]H_a : p > 0.94[/tex]
Five less than the quotient of a number and 4 is equal to – 12.
a). Translate the statement into a mathematical equation.
b). Solve the equation and show all your work. Check your answer.
Step-by-step explanation:fcvrrctygb
The statement into a mathematical equation form is given as -
(x/4 - 5) = - 12 and on solving the equation, we get x = - 28.
What is expression?In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations and other aspects of logical syntax.Given is the statement -
"Five less than the quotient of a number and 4 is equal to -12"
We can write it as equation -
(x/4 - 5) = - 12
Solving the equation, we get -
x/4 = - 12 + 5
x/4 = - 7
x = - 28
Therefore, the statement into a mathematical equation form is given as -
(x/4 - 5) = - 12 and on solving the equation, we get x = - 28.
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