Answer:
On occasion objects move within a medium that is moving with respect to an observer. For example, an airplane usually encounters a wind - air that is moving with respect to an observer on the ground below. As another example, a motorboat in a river is moving amidst a river current - water that is moving with respect to an observer on dry land. In such instances as this, the magnitude of the velocity of the moving object (whether it be a plane or a motorboat) with respect to the observer on land will not be the same as the speedometer reading of the vehicle. That is to say, the speedometer on the motorboat might read 20 mi/hr; yet the motorboat might be moving relative to the observer on shore at a speed of 25 mi/hr. Motion is relative to the observer. The observer on land, often named (or misnamed) the "stationary observer" would measure the speed to be different than that of the person on the boat. The observed speed of the boat must always be described relative to who the observer is.
Evaluate 4x-(y + 2) + 6 when x = 2 and y = 3
Answer:
answer is 3
Step-by-step explanation:
8-5
4(2)=8
3+2=5
8-5=3
Answer:
46
Step-by-step explanation:
x^2+6x-19=0 pls helpppp
Answer:
Step-by-step explanation:
Since this is not factorable, let's just complete the square:
[tex]x^2+6x=19\\x^2+6x+9=28\\(x+3)^2=28\\x+3=\sqrt{28}\\x=2\sqrt{7}-3[/tex]
Please help and number the questions
Giving 50 points please solve it
And I won’t report
Answer:
1. 18.84 in
2. 56.52 cm
3. 4.71 ft
4. 25.12 m
5. 37.68 ft
6. 12.56 yd
7. 43.96 in
8. 28.26 cm
9. 7.85 m
Step-by-step explanation:
[tex]C=2\pi r[/tex]
Solve for x for the equation 5x+2=12
Answer:
x=12
Step-by-step explanation:
Subtract 2 from both sides
Subtract 2 from 12 to get 10
Divide both side by 5
Finally,divide 10 by 5 to get 2
5(2)+2=12
Helpppp!!
Select all the functions whose graphs include the point (16,4).
y = 2x
y = x?
y = x + 12
y = x - 12
Answer:
it is the first one I am sure of it
How can we classify the following shapes ? Pleasee choose the correct answers !!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!
Answer:
Quadrilateral, Square, and Rhombus
Step-by-step explanation:
Hope it helped!
Answer:
I think quadrilateral and rhombus.
Step-by-step explanation:
There are 2214 bacteria in a petri dish at the beginning of an experiment. The number of bacteria doubles every 3 hours. How many bacteria will there be after 2 days? Your answer: 145,096,704 95,305,440,290 8856 19926
Answer:
1)145,096,704
Step-by-step explanation:
24*2=48
48/3=16
1.2214*2=4428
2.*2=8856
3.*2=17712
4.*2=35424
5.*2=70848
6.*2=141696
7.*2=283392
8.*2=566784
9.*2=1133568
10.*2=2267136
11.*2=4534272
12.*2=9068544
13.*2=18137088
14.*2=36274176
15.*2=72548352
16.*2=145096704
HELP HELP HELP I REALLY NEED HELP PLEASE PLEASE PLEASE!!!!!
Answer:
i think 7 maybe?
An astronaut drops a rock off the edge of a cliff on the moon. The distance d(t), in meters, the rock travels after t seconds can modeled by the function d(t)= .5x^2. What is the average speed, in meters per second, of the rock between 5 and 10 seconds after it was dropped
Answer:
The average speed is 7.5 [tex]\frac{ m}{ s}[/tex]
Step-by-step explanation:
Speed is a physical quantity that expresses the relationship between the space traveled by an object and the time used for it.
Then, the average speed relates the change in position to the time taken to effect that change:
[tex]speed=\frac{change in position}{change in time}[/tex]
The change in position is the difference between the final position and the initial position, while the change in time is the difference between the final and initial time.
In this case, the starting and ending positions are calculated by replacing the times in the function of the distance d (t):
d(5)= 0.5*5²= 12.5 m
d(10)= 0.5*10²= 50 m
So:
change in position= final position - initial position= 50 m - 12.5 m= 37.5 mchange in time= 10 s - 5 s= 5 sReplacing in the definition of speed:
[tex]speed=\frac{37.5 m}{5 s}[/tex]
and solving you get:
speed= 7.5 [tex]\frac{ m}{ s}[/tex]
The average speed is 7.5 [tex]\frac{ m}{ s}[/tex]
Write the equation of the line, in point-slope form. Identify (x1, y1) as the point (-2, 2). Use the box provided to submit all of your calculations and final answers.
Answer:
Slope: -1
Point-Slope Form: y - 2 = -1 (x - (-2))
Step-by-step explanation:
Answer: y-2=-1(x+2)
Step-by-step explanation: use whichever points you want I’m using (-2,2)
Find slope: y2-y1/x2-x1 so 2+2/-2-2 = 4/-4 = -1
Plug in these into y-y1= m(x-x1)
y-2= -1(x+2)
In your own words, define the conic section you chose as a collection of points (loci) on a plane.
The conic section as a collection of points(loci) on a plane can be defined in this way .
What is conic section?A conic section is a curve obtained by intersecting a cone with a plane. In Algebra , There are four main types of conic sections:
circles, parabolas, ellipses and hyperbolas. Each of these conic sections has different characteristics and formulas that help us solve various types of problems.
What is loci?A locus (plural: loci) (Latin word for "place", "location") is a set of all points (commonly, a line, a line segment, a curve or a surface), whose location satisfies or is determined by one or more specified conditions.
According to the question
There are 4 main types of Conic section :
circles, parabolas, ellipses and hyperbolas. Each of these conic sections has different characteristics and formulas
Loci for circle : The locus of a circle is defined as a set of points on a plane at the same distance from the center point.
Loci for parabola : A parabola is a locus of points that are equidistance form a focus and a directrix .
Loci for hyperbola: A hyperbola is the locus of points such that the absolute value of the difference between the distances from to and to is a constant.
Loci for ellipse: An ellipse is the locus of all those points in a plane such that the sum of their distances from two fixed points in the plane, is constant. The fixed points are known as the foci (singular focus), which are surrounded by the curve.
Hence, The conic section as a collection of points(loci) on a plane can be defined in this way .
To know more about conic section and loci here:
https://brainly.com/question/10311514
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A wheel with a diameter of 12 inches will move 377 inches when rolled five times. How far will the same wheel move to the nearest inch in 16 rolls?
HELP ME I BEG YOU SMART PEOPLE
Answer:
1, 206 inches
Step-by-step explanation:
Anyone please help like I said I will Venmo you 5 dollars not joking but please help
Answer:
0 = 0 miles
1 = 1.5 miles
2 = 3 miles
3 = 4.5 miles
4 = 6 miles
5 = 7.5 miles
Step-by-step explanation:
multiply each hour by 1.5
If a garden snail travels 1.5 miles per hour, then when 0 hours pass, it would have travelled 0 miles (no time has passed).
After 1 hour, it would have travelled 1.5 miles.
After 2 hours, it would have travelled 3 miles (1.5 miles × 2 hours).
After 3 hours, it would have travelled 4.5 miles (1.5 miles × 3 hours).
After 4 hours, it would have travelled 6 miles (1.5 miles × 4 hours).
After 5 hours, it would have travelled 7.5 miles (1.5 miles × 5 hours).
I hope this helps!
F(x)= x^6 + 63x^3 -64
Valerie and her parents are going to her grandparents' house in Tennessee. It is a 3-hour drive. If they leave at 9:00 am and don't make any stops, what time will they be at Valerie's grandparents' house?
Answer: 12:00 pm
Step-by-step explanation:
Valerie and her parents are goig to see her grandparents.
The grandparents leave 3 hours away.
They leave at 9:00 am.
The rime they'll arrive is therefore:
= 9 + 3 hours
= 12:00 pm
PLEASE ANSWER ASAP !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
and answer like
answer 1. ___________________
answer 2.___________________
answer 3.___________________
answer 4.___________________
answer 5.___________________
Answer:
answer 1: proportinal
answer 2:proportinal
answer 3:not proportinal
answer 4:proportinal
answer 5:not proportinal
Step-by-step explanation:
btw im in k12 too i hope this helps
Answer:
1) proportional
2) proportional
3) not proportional
4) proportional
5) not proportional
Step-by-step explanation:
PLZ HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!
Use the original price and the markup to find the retail price.
Original price: $64; Markup: 20%
The retail price is $ ___________
Answer:
$72 would be the retail price
Step-by-step explanation:
3x+4y=-36, -2x+4y=-16
Answer:
3x+4y=-36
x= -4/3y-12
-2x+4y=-16
x= 2y+8
A traveler is walking on a moving walkway in an airport. The traveler must walk back on the walkway to get a bag he forgot. The traveler's ground speed is 1 fts against the walkway and 5 ft/s with the walkway. What is the traveler's speed off the walkway? What is the speed of the moving walkway? The traveler's speed off the walkway is ft/s.
Answer: here is your answer
Step-by-step explanation:
You can put this solution on YOUR website!
+t+ = traveler's speed in ft/sec
+w+ = walkway's speed in ft/sec
given:
+t+-+w+=+2+
+t+%2B+w+=+6+
-------------
Add the equations
+2t+=+8+
+t+=+4+
and
+t+%2B+w+=+6+
+4+%2B+w+=+6+
+w+=+2+
The traveler's speed off the walkway is 4 ft/sec
The speed of the moving walkway is 2 ft/sec
What is the solution to the equation below? Round your answer to two
decimal places.
6 • e^x = 25
x = 1.43 is the solution to the equation 6 • e^x = 25, rounded to two decimal places
In order to solve the equation 9x = -3 (2+ 3y) for y a student simplifies the equation as shown
Step 1: 9x = –3x + -3 (Gy)
Step 2: 9x = -3x + - y
Step 3: 92
Step 4: 6x = -Y
Step 5: Y = -6
3x = -Y
Which statement describes the error the student made in simplifying the equation?
find the measure of angle 1
(simplify your answer. type an integer or a decimal)
Answer:
<1=117°
Step-by-step explanation:
The sum of two opposite interior angles equals one exterior angle.
<1=58+59=117°
Here are two similar rectangles find the area of the largest one
Answer:
40.32 cm²
Step-by-step explanation:
The area of the small rectangle = 7 × 4 = 28 cm²
Given the ratio of the sides of similar rectangles = a : b , then
the ratio of the areas = a² : b²
Here ratio of sides = 4 : 4.8 = 1 : 1.2
ratio of areas = 1² : 1.2² = 1 : 1.44
Let x be the area of the larger rectangle then by proportion
[tex]\frac{1}{28}[/tex] = [tex]\frac{1.44}{x}[/tex] ( cross- multiply )
x = 40.32
Area of larger rectangle is 40.32 cm²
Answer:
do it yourself loser
Step-by-step explanation:
loser
a. 16
b. 39
c. 98
d. 21
will give brainliest to whoever can answer fastest
Answer:
I would say B. 39.
Step-by-step explanation:
Hope this helps:)
Hellllllllllllllllllllllllllllllllllllllllllllllllllllllllppppppppppppppp
Answer:
144 calories
Step-by-step explanation:
12%(1200)=
0.12(1200)=144
Select the correct solution for 12x = 60.
O A. x = }
B. X = 5
C. X = 48
O D. x = 72
Answer:
B.5
Step-by-step explanation:
5*12=60
A chef is going to use a mixture of two brands of Italian dressing the first brand contains contains 7% vinegar and the second brain contains 12% vinegar the chef wants to make 220 mL of dressing that is 11% vinegar how much of each branch should he said he use
Answer:
176 of 12% vinegar
44 of 7% vinegar
Step-by-step explanation:
Percentage vinegar required = 11%
Volume = 220 mL
First brand % = 7%
Second brand % = 12%
Let p = volume of 12% vinegar material
Mixture :
0.12p + 0.07(220 - p) = 220 * 0.11
0.12p + 15.4 - 0.07p = 24.2
0.05p = 8.8
p = 8.8 / 0.05
p = 176
176 of 12% vinegar and
220 - 176 = 44
44 of 7% vinegar
I need help with this please help????
Answer:
D.29
Step-by-step explanation:
all you have to do is replace the x's with -2
4(-2)^2-3(-2)+7=4*4+6+7=16+6+7=22+7=29
An architect uses a cylindrical container to protect her blueprints. The dimensions of the cylinder are shown in the diagram. 3 in. 15 in. Which measurement is closest to the total surface area of the container in square inches?
Keisha is reading a 310 page book at a rate of 23 pages per day.Use a point-slope equation to determine how many pages she will have left to read after reading the book for 10 days. She will still have [ ] pages left to read after 10 days.
Answer:
80 pages
Step-by-step explanation:
Point slope Equation is :
y = mx + c
In the above question
y = 310 pages
x = number of days = 10 days
m= 23 pages per day
c = ?? Unknown
c = y - mx
c = 310 - 23 × 10
c = 310 - 230
c = 80 pages
She will still have 80 pages left to read after 10 days