Answer:
θ ≈ 81.37°Explanation:
let the angle the ladder makes with the ground be θ
θ = cos⁻¹(3/20)
θ = cos⁻¹(0.15)
θ ≈ 81.37°
X = 10
3x + 5y = 20
What is the solution (x,y) of the system of equations?
Answer:
X=10
Y=-2
Step-by-step explanation: The value of X is given therefore you use it to find the value of Y in the equation:
3(10)+5y=20
5y=20-30
5y=-10
5y/5=-10/5
5 is cancelled out leaving y=-2
I hope this helps. :)
A tank contained 80 liters of water. The function “w” represents the relationship between “t”, time in minutes, and the amount of water in the tank in liters. The equation w(t) = 80 - 2.8t defines this function. How would the graph of the inverse function of compare to the graph of “w”? PLEASE HELP!!
w(t) tells you the amount of water w at a given time t.
The inverse function tells you at which time t the tank contains an amount of water w.
To get the inverse function, solve the equation
w = 80 - 2.8t
for t :
w = 80 - 2.8t
2.8t = 80 - w
t = (80 - w) / 2.8
t ≈ 28.57 - 0.357 w
The graph of w(t) is a downward-sloping line. The graph of the inverse is also a downward-sloping line, but its intercept (28.57) and slope (-0.357) are both smaller than the intercept and slope of w(t).
Four runners are training for long races. Noah ran 5.123 miles, Andre ran 6.34 miles, Jada ran 7.1 miles, and Diego ran 8 miles.
a. What is the total running distance of the four runners?
b. Jada ran how much farther than Noah?
Answer:
26.56300 1.97700
Step-by-step explanation:
You add up all of them which was 26.5630 then you do 7.1-5.123+1.97700
Answer:
a. 26.563 milesb. 1.977 milesStep-by-step explanation:
Given,
Distance Noah ran = 5.123 miles
Distance Andre ran = 6.34 miles
Distance Jada ran = 7.1 miles
Distance Diego ran = 8 miles
Hence,
a. Total running distance of four runners
= (5.123 + 6.34 + 7.1 + 8) miles
= 26.563 miles (Ans)
b. Distance more ran by Jada than Noah
= (7.1 - 5.123) miles
= 1.977 miles (Ans)
Prateek, Dipti and Manoj jogs daily in the morning around a square park,
they take, 6 mins, 5 mins, and 10 mins respectively to take one complete
round. In one morning, all of them start at same time from the same point and
jog in the same direction for an hour.
A- After how many minutes will all three of them meet again? (30 min)
B- How many times will they meet together during the one hour period?
C- What physical and emotional values can be created through this exercise
STEP BY STEP ANSWER
Answer:
A
To solve this find the LCM of 6, 5 and 10
6 = 2*35 = 510 = 2*5LCM(6, 5, 10) = 2*3*5 = 30They will all meet after every 30 min
B
1 hour / 30 min = 60 min / 30 min =2 timesC
Physical and emotional healthPLEASEEEEE HELP Jonah bought 3 packages of hot dogs and 2 packages of hot dog buns and paid $21.90. He went back and purchased 2 more hot dog packages of and 5 more packages of hot dog buns and paid $23.40. Assuming there was no change in the individual cost of each item, what is the cost per package of hot dogs and hot dog buns?
Answer:
each hot dog packege is 7.30 and each hot dog bun packege is 3.65
Step-by-step explanation:
What is the significance of the value 0.31 in the context of the data? A It represents the probability that a student in Mr. Lopez's classes does not have chores. B It represents the probability that a student in Mr. Lopez's classes does not receive an allowance. C It represents the probability that a student in Mr. Lopez's classes either does not have chores or does not receive an allowance. D It represents the probability that a student in Mr. Lopez's classes does not have chores and does not receive an allowance.
Step-by-step explanation:
The significance level, also denoted as alpha or α, is the probability of rejecting the null hypothesis when it is true. For example, a significance level of 0.05 indicates a 5% risk of concluding that a difference exists when there is no actual difference
If a bear and half give birth to a cub and a half in a day and a half, how many Cubs will six bears give birth to in seven days?
Answer:
28 cubsStep-by-step explanation:
See ratios and step changes below
Bears >> Cubs >> Days1.5 1.5 1.51.5 1 11.5 7 76 28 7A map says that 4 centimeters represents 10 kilometers. What is the real distance that 18 centimeters represents?
Answer:
The real distance that 18 centimeters represent is 45 kilometers.
Step-by-step explanation:
In this case, you can use a rule of three to find the real distance that 18 centimeters represent given that 4 centimeters represent 10 kilometers:
4 cm → 10 km
18 cm → x
x=(18*10)/4
x=45 km
According to this, the answer is that the real distance that 18 centimeters represent is 45 kilometers.
A bird is flying at an altitude of 400 feet and descending to its nest located in a tree 20 feet above the ground. The angle from the nest to the bird is 24 degrees. Approximately how far is the bird from the nest.
ANSWER:
The answer is 934 If you make a right triangle with 380 as the height because the bird has 380 ft to go until the nest then you make the angle 24 opposite to that side. After you use sin to find the missing side which is 380/x= sin24 the answer you get is rounded.
Answer:T he bird will land at a radios of 20 feet in th air.
Step-by-step explanation: The object is falling 380 feet out of the air out of 400.
Question 8 (4 points)
(08.03)
Identify the factors of x2 - 8x - 20. (4 points)
1) (x + 4)(x - 5)
O 2) (x + 5)(x - 4)
3) (x - 10)(x + 2)
O 4) (x - 2)(x + 10)
PLEASE HELP!!
Answer:
(x − 10)(x + 2)
Step-by-step explanation:
i just took the test and thats the right answer:)
1 Professor Peterson is buying a writing
desk. The width of the desk must be less
than 4 ft.
HELP
The inequality of the width of the desk must be less than 4 ft is w < 4.
What is inequality?It shows a relationship between two numbers or two expressions.
There are commonly used four inequalities:
Less than = <
Greater than = >
Less than and equal = ≤
Greater than and equal = ≥
We have,
Inequalities are mathematical statements that compare two expressions using symbols like "<" (less than), ">" (greater than), "<=" (less than or equal to), ">=" (greater than or equal to), or "!=" (not equal to).
In this case, the problem states that the width of the desk must be less than 4 ft.
We can use the symbol "<" to indicate that the width (w) is smaller than 4 feet. Therefore, we can write the inequality as w < 4, which means that any value of w that is less than 4 feet satisfies the given condition.
Thus,
The width of the desk must be less than 4 ft is w < 4.
Learn more about inequalities here:
https://brainly.com/question/20383699
#SPJ2
Simplity each expression using the distributive property.
1. 6(3x -4)
NO FILES OR LINKS, PLS HELP ITS TIMED
I will report if u send links or files
PS
Mike has attempted 84 free throws. Of those attempted,
63 have gone in the basket. Based on this rate, what is the
probability that Mike's next free throw attempt will go in
the basket?
Answer:
63 ÷ 84 = 0.75 // 75% // 3/4
Step-by-step explanation:
63 divided by 84 equals 0.75, 75%, or 3/4. meaning the probability of Mike making his next free throw 75%
HELP ASAP!!!! thank you if you helped!!!
PLEASE I’m in classssss
Answer:
25 minutes
Step-by-step explanation:
Think about how many steps per minute Paul can walk. Knowing that he can walk 15 steps in 5 minutes, we can say that Paul can walk 3 steps/minute.
We're asked to figure out how many minutes it would take him if he walks at a constant speed if he takes 75 steps. So we can just divide 75 steps into 3 steps/minute and then we should get 25 minutes!
Answer:
25 Minutes.
Step-by-step explanation:
Its hard to explain.
Please help me with these two, they are hard
_______ is the amount of space________ a two-dimensional shape. It can be measured in units such as_______ or _________
Answer:
Area; inside; centimeters; meters.
Step-by-step explanation:
Area is the amount of space inside a two-dimensional shape. It can be measured in units such as centimeters or meters.
In Mathematics, it is typically used to measure the amount of space contained in two-dimensional shapes such as a square, rectangle, circle, sphere, etc.
Consider the area of the following shapes;
I. The area of a circle = πr²
Where, r is the radius of the circle.
II. Area of square = L²
Where, L is the length of its sides.
III. Area of rectangle = Length * width.
Answer:
Area; inside; centimeters; meters.
Step-by-step explanation:
Area is the amount of space inside a two-dimensional shape. It can be measured in units such as centimeters or meters.
Find the area of the figure
Answer:
bro its 24
Step-by-step explanation:
Tickets to the movies cost $9.50 for adults and $6.50 for kids. A large group bought 12 tickets and spent a total of $87. How many kid's tickets did the group purchase?
Please include an equation.
Answer:
12
Step-by-step explanation:
Answer:
9 kids tickets
Step-by-step explanation:
Let k = no. of kid's tickets
12 - k = no. of adult's tickets
9.50(12 - k) + 6.50k = 87
95(12 - k + 65k = 870
1140- 95k + 65k = 870
- 30k = -270
k = 9 kids
A new tv show will air live at 8pm Eastern Standard Time.
What time will it air in Central Standard Time?
Answer:
7:00pm
Step-by-step explanation:
Can someone please help me !!!!!
Answer:
Step-by-step explanation:
Sorry I didn't mean to do that.
semaj bought a souvenir cup at the zoo for 8.50. any time semaj brings the cup back to the zoo he can purchase fountain drinks for 0.75 each. if semaj has spent 15.25vso far, including the orginal purchase of the cup, how many fountain drinks has he purchased
Answer:
9
Step-by-step explanation:
15.25-8.50= 6.75, 6.75÷.75=9
Answer:
9 fountain drinks
Step-by-step explanation:
8.50+0.75x=15.25 is the equation you will use. 8so is your starting point and for every drink you get, it is 75 cents.
Solve by subtracting 8.50 from 15.25
0.75x=6.75
Divide 6.75/0.75 to isolate the x.
x=9
Select the equivalent expression.
Answer:
b.
[tex] {4}^{15} \times {5}^{10} [/tex]
Step-by-step explanation:
In the given expression u can bring the 5^-2 in the neumerator making it 5^2.
Then multiply both powers by 5.
Hope this helps !!!HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
Answer:
it is the first one
Step-by-step explanation:
if right give brainliest
answers are
126in cubed
377in cubed
565in cubed
1131in cubed
126
Step-by-step explanation:
hdhfgdhdgdhdhrgdgdgdhdgdhdhdh
PLEASE HELP!!!! While observing the fare meter in a taxi, a student records the following data:
Reading on Taxi Fare Meter
Time (minutes) Meter Reading
0 $7.75
10 $13.25
20 $18.75
30 $24.25
What is the equation that relates the cost, C(t), of the taxi ride and time, t, in minutes? What is the cost of a 42-minute taxi ride? (7 points)
C(t) = 0.55t + 7.75, $30.85
C(t) = 1.71t + 7.75, $79.57
C(t) = 0.775t + 5.50, $38.05
C(t) = 5.5t + 0.775, $231.78
Answer:
C(t) = 0.55t + 7.75, $30.85
Step-by-step explanation:
the fixed cost is $7.75. this is the cost incurred at zero minutes of the taxi ride
the variable cost or the cost per minutes driven =
(13.25 - 7.77) / (10 - 0) = 0.55
total cost = 7.75 + 0.55t
cost of 42 minutes = 7.75 + 0.55(42) = $30.85
What is the difference between the cost of 15 visits with and without a membership? Show your work swimming
Question is incomplete :
It costs $4 to go to the swimming pool
The cost of n visits =
Membership at the pool costs $21. Members pay $3 each time. WHAT is The cost for a member to swim including membership fee?
What is the difference between the cost of 15 visits with and without a membership?
Answer:
Kindly check explanation
Step-by-step explanation:
Given that:
Swimming cost = $4
Cost of swimming n Times = cost per swim * number of swims
= $4 * n
= $4n
Membership cost = $21
Cost per swim for members = $3
Swimming cost including membership fee :
21 + 3n ; n = number of visits
For 15 visits ; n = 15
Amount paid :
Members = 21 + 3(15) = 21 + 45 = $66
Non - Member = 4(15) = 60
Difference :
$66 - 60 = 6
Members incur $6 more than non - members
What is the ratio(fraction) for sin B
Answer:
sin B = 4/5
Step-by-step explanation:
sine is opposite over hypotenuse
What's the answer I need help right away
Answer: ?=28
Step-by-step explanation: 35/7=5
49/7=7
28/7=4