The ground speed of the plane is 402 mph
We have given,
A plane leaves an airport traveling at 400 mph in the direction n 45° e. a wind is blowing at 40 mph in the direction n 45° w.
Now, Draw a right triangle with 400 and 40 as the two legs.
This is a right angle because 45 degrees NE is perpendicular to 45 degrees NW.
So, the two side lengths are 400 and 40
Using the Pythagorean theorem,
What is the Pythagorean theorem?(a^2 + b^2 = c^2)
[tex]400^2+40^2=c^2\\\\c^2=160000+1600\\c^2=161600\\c=401.99[/tex]
Therefore the answer is 401.995, or 402mph.
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i do not know this answer
Answer:
Move all terms that don't contain x to the right side and solve. x = 10 − 2 y
Step-by-step explanation:
Find an equation for the line that passes through the points (6, -1) and (-6, 2).
Answer:
[tex]D : y = \frac{-1}{4}x + \frac{1}{2}[/tex]
Step-by-step explanation:
let D be the line that passes through the points (6, -1) and (-6, 2)
Then D has an equation of the form D: y = ax + b
Now we need to find a and b in order to be able to write the equation of the line D:
[tex]a = \frac{-1-2}{6-(-6)}= \frac{-3}{12}= \frac{-1}{4}[/tex]
Since the point (6 , -1) lies on the line D then :
-1 = (-1/4) × (6) + b
then
-1 = (-6/4) + b
then
b = -1 - (-6/4) = -1 + 6/4 = -4/6 + 6/4 = (-4+6)/4 = 2/4 = 1/2
then
b = 1/2
Conclusion:
Since a = -1/4 and b = 1/2 then
[tex]D : y = \frac{-1}{4}x + \frac{1}{2}[/tex]
Suppose a population contains 20,000 people. All else being equal, a study
based on a population sample that includes which of the following numbers
of respondents would you have the most confidence in?
A. 200
B. 2000
C. 20
D. 2
Answer:
2000
Step-by-step explanation:
larger sample sizes have more reliable results
PLS HELPPP I HAVE NO IDEA WHAT THIS IS HELPPPPP
What is the y-intercept of the line: 8x - 4y = 20
Answer:
The y-intercept is 5
Step-by-step explanation:
First Step is to set y by itself:
4y = -8x + 20
y = -2x + 5
Remember: y = mx + b and b is the y intercept
b = 5
Find the volume, in cubic centimeters, of the rectangular prism pictured below.
3 cm
| 21 cm
2 cm
(Your answer must be entered as a mixed number with a simplified fraction)
HURRY
Answer:
Step-by-step explanation:
Formula
Use V = L*w* h
Givens
L = 3 cm
w = 2 1/2 cm
h = 2 1/2 cm
Solution
V = 3 * 2 1/2 * 2 1/2
Answer: V = 18 3/4 cm^3
Which of the following produces the loudest sound?
Evaluate the expression if x=2, y=7, and z = -4
(z - x) + y
Answer:
1
Step-by-step explanation:
Evaluate (z - x) + y if x = 2, y = 7, and z = -4
(z - x) + y <== substitute the numbers for the variables
(-4 - 2) + 7
-6 + 7 <== add
1
Hope this helps!
Compare using >, <, or=.
3 miles
5,000 yards
Answer:
3 miles > 5,000
Step-by-step explanation:
hope this helps :)
have a great day or night.
pls brainliest first to answer.
Determine the amplitude or period as requested.
Period of y = negative one-third sine 2 x
a.
Negative one-third
b.
StartFraction pi Over 3 EndFraction
c.
One-third
d.
Pi
The time period of the given function will be π.
What is a expression? What is a mathematical equation?A mathematical expression is made up of terms (constants and variables) separated by mathematical operators.A mathematical equation is used to equate two expressions.Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.We have the following expression -
y = (-1/3)sin(2x)
We have -
y = (-1/3)sin(2x)
We can write -
ωx = 2x
Now -
ω = 2π/T
(2π/T)x = 2x
2π/T = 2
T = 2π/2
T = π
Therefore, the time period of the given function will be π.
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The variables a, b, and c represent polynomials where a = x2, b = 3x 2, and c = x – 3. what is ab – c2 in simplest form? 3x3 2x2 – x 3 3x3 2x2 – x – 3 3x3 x2 – 6x 9 3x3 x2 6x – 9
The simplest form of a^2-ab is given by 3x^3 + x^2 + 6x - 9.
We have given that,
a = x^2,
b = 3x + 2,
c = x – 3
We have to determine ab- c^2.
What is the meaning of the simplest form?
A fraction is in its simplest form when the numerator and the denominator have no common factors besides one.
ab- c^2
[tex]=x^2(3x+2) - (x-3)^2\\ =3x^3 + 2x^2 - (x^2 - 6x + 9) \\=3x^3 + 2x^2 - x^2 + 6x - 9 \\=3x^3 + x^2 + 6x - 9\\[/tex]
The simplest form of a^2-ab is given by 3x^3 + x^2 + 6x - 9.
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WILL GIVE BRAINLIESTTT, FIVE STARS, AND THANKS
can someone explain this to me and what the question means and is asking?
In other words, it shows when the ball hits the ground.
What number goes in the box?
394 -
= 153
A 242
B 547
C 240
D 241
Answer:
d
Step-by-step explanation:
394-153=241
Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.
10 ft
2 ft
2 ft
20 ft
What is the area of the kite?
Answer:
60ft^2
Step-by-step explanation:
area= 1/2(b)(h)
b for both traingles is 4
height of 1 triangle is 10 and the other is 20
total are will equal both triangles added together
area of first triangle = 1/2(10)(4)= 20ft^2
area of second triangle = 1/2(20)(4)= 40ft^2
area of the kite= 20+40= 60ft^2
Simplify ratio
1. 65:15
2. 56:45
3. 98:24
4. 380:56
5. 246:39
6. 98:112
7. 54:12
8. 87:15
9. 47:17
10. 90:117
1) 13:3
2) Same
3) 49:12
4) 95:14
5) 82:13
6) 7:8
7) 9:2
8) 29:5
9) Same
10) 10:13
Your basically dividing them by each other on a calculator
E.g. 90 ÷117 = 10/13
(10:13)
Or
20:30
20÷30=2/3
(2:3)
So, you could find the HCF of both numbers.
( highest factor of 20 & 30 is 10)
Hope this helps!
What is .006 as a percent
Answer:
.006 as a percentage is .6%
Step-by-step explanation:
Multiply your number by 100 to get the percentage.
.006 x 100 = .6
Therefore, your answer is .6%.
A number, n, is multiplied by −0. 7. The product is -1/2. What is the value of n?
Step-by-step explanation:
-0.7n = -1/2
-0.7n = -0.5
n = 0.5/0.7
n = 0.715
Harry takes medicine every day. If the dosage is 0.2 of a gram per day, what is the total amount of medicine he consumes in a week?
Answer:
1.4 grams of medison for thr whole week combinded
Answer:
1.4 g
Step-by-step explanation:
0.2 gram per day x 7 days = 1.4 g total consumed in a week
What is the definition of Comparative Advantage?
Answer:
When one country has a commercial advantage over another country.
Step-by-step explanation:
(This is actually an AP Human Geography question). Ex: Florida grows oranges better than Maine due to Florida’s tropical climate. Florida has the comparative advantage.
$6.62 for 2 pounds of tomato’s
Answer:
$3.31 for each
Step-by-step explanation:
$6.62 divided by 2 = $3.31
Answer:
$6.62 divided by 2= $3.31
Step-by-step explanation:
What your going to do is divide 6 by 2 = 3
Next divided 62 by 2 = 32
Easy =)
Have a great day/night
An atrium is being designed to house an exhibit of tropical birds. The atrium must enclose 250,000 cubic feet of space, and the designer wants it to have the shape of a hemisphere. Is such a design possible given that the plot of land on which it will be built is a rectangle 90 feet wide and 100 feet long?
The proposed design of the atrium (V < V') is possible since its volume is less than the maximum possible atrium.
Can this atrium be built in the rectangular plot of land?
The atrium with the maximum allowable radius (R), in feet, is represented in the image attached. The real atrium is possible if and only if the real radius (r) is less than the maximum allowable radius and therefore, the real volume (V), in cubic feet, must be less than than maximum possible volume (V'), in cubic feet.
First, we calculate the volume occupied by the maximum allowable radius:
V' = (8 · π / 3) · (45 ft)³
V' ≈ 763407.015 ft³
The proposed design of the atrium (V < V') is possible since its volume is less than the maximum possible atrium. [tex]\blacksquare[/tex]
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Susu is solving the quadratic equation 4x2-8x-13=0 by completing the square. her first four steps are shown in the table. a table listing the first few steps in deriving the quadratic formula in which step did susu first make an error? step 1 step 2 step 3 step 4
The error is in step 2 in step 2 Susu forgot to divide 8 by 4 for finding the solution of a quadratic equation.
What is a quadratic equation?The name Quadratic comes from "quad" meaning square, because the variable gets squared (like x2). It is also called an "Equation of Degree 2"
Susu is solving the quadratic equation [tex]4x^2-8x-13=0[/tex] by completing the square
To apply to completing the square method we need to get x^2 alone
Susu added 13 on both sides. So step 1 is correct
When we factor out 4, we divide both terms by 4
[tex]4(\dfrac{4x^2}{4}-\dfrac{8x}{2})=13[/tex]
[tex]4(x^2-2x)=13[/tex]
Susu forgot to divide 8 by 4
So , error in step 2
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Answer:
Step-by-step explanation:
2
Madden needs to choose an object for his math project that shows volume. He has a choice between a container for catching bugs and a poster from his favorite movie. Which item should Madden choose and why?
Answer:
container for catching bugs because posters have nothing to do with volume
Answer:
I think Madden should go for the poster because poster have more angles as well as width length and height.
Step-by-step explanation:
Brainliest??????
PLEASE PLEAS HELP ME !!!
please help me I will give BRAINLY , 5 STARS and a THANKS
Answer:
2, 4, 8
Step-by-step explanation:
Well, it says Max put $1 on the first day(which is already entered for you), then it says that he put in $2 on the second day. Then it says that he doubles how much he puts in each day after, which just means to multiply the last entered amount by 2. So, he put in 2 x 2 = $4 on the third day, and lastly, 4 x 2 = $8 on the fourth day.
Hope this helps :)
A bag contains 6 blue marbles, 5 yellow marbles, 3 white marbles, and 1 red marble.
What is the probability of not selecting a white marble?
A. 2/3
B. 3/4
C. 4/5
D. 1/5
Please explain how you got the answer so I can learn
Any links and you will be reported please help
[tex]6 + 5 + 3 + 1 = 15 \: marbles[/tex]
Total number of possibilities excluding white marbles:[tex]6 + 5 + 1 = 12 \: marbles[/tex]
The probability of an event occuring is given by:[tex]p(a) = \frac{number \: of \: possibilities}{total \: number \: of \: possibilities} [/tex]
[tex]p(a) = \frac{12}{15} = \frac{4}{5} [/tex]
Letter CAnswer:
The total number of marbles in the bag is:
6 blue marbles + 5 yellow marbles + 3 white marbles + 1 red marble = 15 marbles
The probability of not selecting a white marble can be calculated as follows:
Number of non-white marbles / Total number of marbles
There are a total of 15 - 3 = 12 non-white marbles in the bag (6 blue marbles + 5 yellow marbles + 1 red marble).
So the probability of not selecting a white marble is:
12 / 15 = 4/5
Therefore, the answer is C) 4/5.
Step-by-step explanation:
A 40-pound case of bananas costs $23.60. How much would a 70-pound case cost?
Answer:
$41.30
Step-by-step explanation:
First, divide 23.60 by 40
23.60/40 = 0.59
0.59 is the unit price, (or the worth of one {1} pound case)
0.59 * 70 = 41.3
$41.30 is the cost of a 70-pound case of bananas
hope this helps :)
Latoya drove 585 miles in 9 hours. At the same rate, how many miles would she drive in 13 hours?
Answer:
845 miles
Step-by-step explanation:
Hope this helps!
I need to put this equation into standard form help please!
-4.9t²+7.5t+1.8=21
20.5 yeah :)
"HABANG BUHAY SONG"
Find the perimeter of each figure in feet, 48 in 3yd 5ft 1yd .
Answer:
Step-by-step explanation:
Remark
First of all, all the units must be the same. Inches is probably the best unit to use.
Second the base line at the bottom must be completed. How long is it
Givens
Left side = 48 inches
Top = 3 yards
1 yard is 36 inches.3 yard is 3* 36 = 108 inches.Right side = 5 feet.
1 foot = 12 inches5 feet = 12 * 5 = 60 inchesBottom = 1 yard + top
Bottom = 1 yard + 3 yards
Bottom = 4 yards
1 yard = 36 inches4 yards = 144 inchesPerimeter = 144 + 60 + 108 + 48
Perimeter = 360 Inches.
Answer
Perimeter = 360 inches
Perimeter = 360 / 12 = 30 feet There are 12 inches in a foot
Perimeter = 360 / 36 = 10 yards. There are 36 inches in a yard
The question does not specify the units. Probably inches would work, but if a computer is marking your answer and you get it wrong, you are going to have to try the other two answers in turn.
How to solve (3x)^0 for applying the exponent rule for zero exponents