Answer:
Against the direction of the wind is [tex]x-10=35-10=25\ \text{mph}[/tex] and with the wind is [tex]x+10=35+10=45\ \text{mph}[/tex]
Step-by-step explanation:
Let x be the speed of the hawk in still air
The speed of the wind is 10 mph
So speed of the hawk when flying against the wind is [tex]x-10[/tex] and with the wind is [tex]x+10[/tex].
Distance the hawk travels when going against the wind is 50 miles and going with the wind is 90 miles
The hawk covers the above mentioned distances in the same amount of time.
[tex]\text{Time}=\dfrac{\text{Distance}}{\text{Speed}}[/tex]
[tex]\dfrac{50}{x-10}=\dfrac{90}{x+10}\\\Rightarrow \dfrac{50}{x-10}-\dfrac{90}{x+10}=0\\\Rightarrow \dfrac{50(x+10)-90(x-10)}{x^2-100}=0\\\Rightarrow 50x+500-90x+900=0\\\Rightarrow -40x+1400=0\\\Rightarrow x=\dfrac{1400}{40}\\\Rightarrow x=35\ \text{mph}[/tex]
The speed of the hawk in still air is 35 mph.
Speed of the hawk against the direction of the wind is [tex]x-10=35-10=25\ \text{mph}[/tex] and with the wind is [tex]x+10=35+10=45\ \text{mph}[/tex].
The table shows input and output values for a cubic function.
Which statement explains why the function is cubic?
There is a constant first difference of 2.
There is a constant second difference of 0.
There is a constant third difference of 0.
There is a constant third difference of 24.
Answer:
It's D - There is a constant third difference of 24.
Step-by-step explanation:
Mr Hernandez asked his students to estimate the area of the circular garden in front of the school if the radius of the garden is 7 feet which estimated is closed to the area of the garden
Answer:
A = pi * r^2
Step-by-step explanation:
Hope this right if not im sorry
Jennifer and two friends went out to eat. Their bill was $54.25 and they need to pay tax of 8% and leave a 17% tip. If they split the bill evenly, how much will they each pay?
Answer: $22.8501
Step-by-step explanation:
Since their bill was $54.25 and they need to pay tax of 8% and leave a 17% tip, the total amount that will be paid will be:
= $54.25 + (8% × $54.25)
= $54.25 + (0.08 × $54.25)
= $54.25 + $4.34
= $58.59
We then add the 17% tip. This will be:
= $58.59 + (17% × $58.59)
= $58.59 + (0.17 × $58.59)
= $58.59 + $9.9603
= $68.5503
Since they want to split the bill evenly, we divide the total amount gotten by 3. This will be:
= $68.5503 / 3
= $22.8501
Each person will pay $22.8501
It takes Zach 15 minutes to walk 7 1/2 blocks to the swimming pool. At this rate, how many blocks can he walk in one minute? Circle the letter of the correct answer.
Dee chose c as the correct answer. What was her error?
What was her error?
Answer:
mathmodemathmodemathmodemathmodemathmode
Step-by-step explanation:
I WILL LITERALLY GIVE OUT 50 POINTS FOR THIS!!!!
Answer: B) -3
Step-by-step explanation:
X<-11/3 if u divide -11/3 = is about -3.6666
Answer:
B
Step-by-step explanation:
Which pair of functions are inverse functions?
PLEASE ILL GIVE BRAINLIEST
Answer:
A
Step-by-step explanation:
To find an inverse function you switch f(x) and x, and solve for f(x) (in this case you also rename it to g(x) )
inverse of y=(x-4)/5 is
5x = x -4
x = 5x + 4 so A works
someone please help me!!!!!
Explanation:
Each time x goes up by 1, y goes up by 18
slope = rise/run
slope = (change in y)/(change in x)
slope = 18/1
slope = 18
You can also use the slope formula to get the same answer. Let's say we picked the points (2,36) and (3,54). We then would get
m = (y2-y1)/(x2-x1)
m = (54-36)/(3-2)
m = 18/1
m = 18
We get the same result as before.
Since x represents the number of years and y is the number of inches, the slope of 18/1 indicates an increase of 18 inches per 1 year, or just 18 inches per year.
help im bad at math AHHHHHHHHHHHHHHHHHHHHH
Answer:
36
Step-by-step explanation:
Answer:
The answer is D
Step-by-step explanation:
because am very good at math
couldn't fit the whole graph but someone please help im so confused
7 1/2 divided by 3 1 /8
Answer:
2.4 or 2 2/5
Step-by-step explanation:
help me with this please
Answer:
12
Step-by-step explanation:
The sum of two interior angles in a triangle is equal to an exterior angle
3x + 4 + 2x + 1 = 6x - 7 add like terms
5x + 5 = 6x - 7
5 + 7 = 6x - 5x
12 = x
If (ax+2)(x+b) = 3x^2 + 5x + c for all values of x, what is the value of c?
Answer:
c=2
Step-by-step explanation:
(ax+2)(x+b) = ax^2+2x+abx+2b = ax^2+(2+ab)x+2b
Given, ax^2+(2+ab)x+2b = 3x^2+5x+c
a=3
2+ab=5 => 2+3b=5 => 3b=5-2=3 => b=1
2b=c => c=2*1 = 2
So, c=2
Graph the following equations on the graphs below.
( GRAPHING PAPER NEEDED, NOT A WEBSITE )
First, you want to identify the slopes and y-int.
Equation 1 = y = -2x + 2
Slope = -2
y-int. = 2 or (0,2)
Equationt 2 = y = 2x + 3
Slope = 2
Y-int. = 3 or (0,3)
To graph, first plot the y-intercepts. Then do the slopes.
Slope = -2
Down 2 over 1 (to the right)
Slope = 2
Up 2 over 1 (to the right)
Then just connect the dots in a line!
One serving of Dominique’s chips has 210 calories and a mass of 15 grams. How many calories are in 6 grams of the chips?
A-35
B-84
C-201
D-525
Answer:A
Step-by-step explanation:isuausie
-(- 3.8a - 9b + 5.8)
Answer:
3.8a + 9b - 5.8
Step-by-step explanation:
distributing the negative
Please help! Will give brainliest answer
Which of the following represents an irrational number?
0 to the power of 16
_
O 1.3
O to the power of 4
O to the power of 10
Answer:
I think it's B, 1.3 repeating is a irrational number
What is the first step in solving -5x-1/6>3/4
A. Add 1/6 to both sides
B. Subtract 1/6 from both sides
C. Divide both sides by -5
D. Multiply both sides by -5
Answer:
sotrrrrrrrrrrryyyyyyytyyttyyytttt plzzzzzz
Answer:A
Step-by-step explanation:
Add 1/6 to both sides
HELP ME IM TIMED!
Which expression best estimates -18
– ,
O 18-3
O -18-3
O-18-(-3)
O 18-(-3)
Answer:I think it’s c
Step-by-step explanation:I’m think me smart
PLEASE HELP ME PLEASEEEEEEEEW
Answer:
i would say its not but I could also be wrong or it could be letter b
Man school is 10 blocks west of the library and his house is 10 blocks east of the library, which location is farthest from the library?
Answer:
It's either his house or they are the same distance
Step-by-step explanation:
I'm gonna say that they are the same distance from the library because his school is 10 blocks west of the library and his house is 10 blocks east.
Hope this helps!
What is 50% of 3000? *
What is 15% of 150 leave as decimal
Please anyone help me
Answer:$2094.00
Step-by-step explanation:Put in desmos calculator and put 4.7 percent of 2000 and you get 94 then add 94 to 2000 and you got $2094
At the beginning of 2019, Milos owned 30 model cars. If he purchases and builds 2 models each month, which of the following tables represents the numbers of model cars he has m months after January 1, 2019
What are the tables? I would need to get more info
A large shipment of batteries (several million) contains 4% that are defecttive.It 60 batteries are selected randomly,What is the probability that at most two are defective?
Answer:
0.5676
Step-by-step explanation:
We have been given these informations from this question ,
probability of 4% = 0.04
q = 1 - p = 1 - 0.04 = 0.96
Sample size n = 60
We solve further by Using binomial probability formula,
P(X = x) = (nCx)*px*(1 - p)^n - x
We have:
(60C0)x 0.04⁰x(0.96⁶⁰+(60C1)x0.04¹x(0.96)⁵⁹+(60C2)x0.04²x (0.96)⁵⁸
From this we would get the probability to be = 0.5676
Can someone help me please
Answer:
The slope is -2 and the slope-intercept form is y=-2x+20
Step-by-step explanation:
To find the slope between two points, remember to use the equation y2-y1 over x2-x1. That will help you get the slope. To find the y-intercept, use any of the two points given and insert the slope into the equation y=mx+b. For this one I used the two points (7,6)
Which expression is equivalent to 9 y minus 3?
Answer:
B
Step-by-step explanation:
3(3y-1) = 9y-3
3*3y=9y
3*1=3
combine those and you get 9y-3.
During the Lakers game, Kobe made 19 shots; some were 2-pointers and the others were 3-pointers. If he scored 45 points, how many were 2 pointers. How many 3-pointers?
Five 3 pointers and two 2 pointers
Step-by-step explanation:
The required expression that represents the number of 2 pointers and 3 pointers scored is 2x + 3y = 45 where x represents the number of 2 pointers and y tend the number of 3 pointers.
Given that, During the Lakers game, Kobe made 19 shots; some were 2-pointers and the others were 3-pointers. If he scored 45 points, how many were 2 pointers. How many 3-pointers is to be determined.
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,
Let the number of 2 pointer be x and the number of 3 pointer be y,
According to the question,
2x + 3y = 45
where x represents the number of 2 pointers and y tend the number of 3 pointers.
Thus, the required expression that represents the number of 2 pointers and 3 pointers scored is 2x + 3y = 45.
Learn more about simplification here: https://brainly.com/question/12501526
#SPJ2
HELP 6TH GRADE MATH
Enter the phrase as an algebraic expression. The product of 54 and c
Answer:
54c
Step-by-step explanation:
The word "product" means that the operation is multiplication. So the two numbers need to be multiplied. In algebra, the way you multiply a constant and a variable is simply by putting the two next to each other with no other symbol.
whats the x value of the solution to this system of equations
x=2y-4
7x+5y=-66
Answer:
x=2y−47x
Step 1: Add 47x to both sides.
x+47x=−47x+2y+47x
48x=2y
Step 2: Divide both sides by 48.
48x
48
=
2y
48
x=
1
24
y
Answer:
x=
1
24
y
Step-by-step explanation:
Answer:
-19/7
Step-by-step explanation:
Uber is now charging a $2.50 flat rate in addition to $0.75 per mile for your ride. Janae can spend at most $13 on her Uber Ride. Which answer choice below represents the number of miles Janae can travel without exceeding her budget?
A:22
B:10
C:30
D:18
Answer:
B: 10Step-by-step explanation:
Full charge can be expressed as equation:
c = 2.5 + 0.75m, where c- charge, m- milesThe limit for charge is $13, then we got inequality:
0.75m + 2.5 ≤ 130.75m ≤ 9.5m ≤ 9.5/0.75m ≤ 12.66Option B: 10 is correct as the only number satisfying the inequality
Answer:
B:10
Step-by-step explanation: bcs it is
