HOw far away can a person live from a radio station and hear its broadcast if the signal covers a circular area of 40000 square miles?
Answer:
The radio station is at the center of a circle with an area of 40,000 square miles. The furthest point that you could hear the broadcast would be on the outer edge of the circle or at the end of the radius of the circle. The formula for the area of a circle is:
Area = π[tex]r^{2}[/tex]
So we take what we know and work the formula in reverse.
40,000 = πr²
40,000 / π = r²
12,732.4 = r²
√12,732.4 = √r²
112.84 = r
The radius of a circle with an area of 40,000 square miles is 112.84 miles. This is the furthest point that you would be able to hear the broad cast.
Step-by-step explanation:
I try to find it but I could PLEASE help I’ll say the answer when I’m done
Answer: false
Step-by-step explanation:
Find the unit rate and determine which rate is greater: 500 miles in 10 hours or 125 miles in 2 hours.
Answer:
30 miles in 2.5 hours= 12 mph
Step-by-step explanation:
This is a fraction equal to
30 miles ÷ 2.5 hours
We want a unit rate where
1 is in the denominator,
so we divide top and bottom by 2.5
30 miles ÷ 2.5
2.5 hours ÷ 2.5
=
12 miles
1 hour
=
12 miles
hour
= 12 miles per hour
This cuboid is made from 6 small cubes,
Write how many small cubes there are in this cuboid
Answer:
6 small cubes
Step-by-step explanation:
given in cuboid made from 6 small cubes
Answer:
in a cuboid, there is a total of 36 cubes
Step-by-step explanation:
because, There are 3 layers in total, so three layers of 12 cubes. 12 x 3 = 36 so there are 36 cubes inside the cuboid.
have a wonderful day
(the answer is for this cuboid)
Pants at clothes 4 us are 20% off. with this dicount, the pants cost $25.60. what was the original price of the pants?
Answer:
The answer is $30.72
Step-by-step explanation:
25.60 + 20% = 30.72
You have to divide 25.60 / 20% and that would be 5.12 so to the original answer 25.60 you add 5.12.
Final Answer
30.72
Please someone help I’ll mark brainlesss !!! Please help me
Answer:
left top: 37
right top: 8
left bottom: 14
right bottom: 6
Step-by-step explanation:
i need a brainliest and i hope this helps!
What are formulas in maths?
Areas. Square. `A=l^2` ...
Volumes. Cube. `V=s^3` ...
Functions and Equations. Directly Proportional. `y = kx` `k = y/x` ...
Exponents. Product. `a^mxxa^n=a^(m+n)` ...
Radicals. Multiplication. `root(n)(x)xxroot(n)(y)=root(n)(x xx y)` ...
Trigonometry. Trigonometry Ratios. ...
Geometry. Euler's Polyhedral Formula. ...
Vectors. Notation
Determine whether the following is an example of a sampling error or a non sampling error. A psychiatrist surveyed 8000 people to see the proportion who had seen a psychiatrist at least once in their lives. Unfortunately, there was confusion amongst the respondents about the difference between a psychologist and a psychiatrist and the recorded proportion was higher than it should have been due to this confusion.
Answer:
The correct answer is - Non sampling error
Step-by-step explanation:
Sampling errors arises when a sample does not represent the whole population.
It is difference between the real values of the population and the values derived by using samples from the population.
A non-sampling error refers to an error that occurs during data collection, causing the data to differ from the true values.
Non sampling error are of two types , response error and non response error.
In the given question , the error is a response error.
So , it is an example of Non-Sampling error.
Drag each statement to show whether it is true, based on the graph.\
Answer:
noice
Step-by-step explanation:
Determine the solution to the system of equations graphed below and explain your reasoning in complete sentences.
Answer:
The solution to the system of equations is (0, -3) because that is where the two graphs intersect. It is the only solution since the equations intersect at that point only.
Step-by-step explanation:
We have the two equations:
[tex]f(x)=|x+1|-4\text{ and } g(x)=-2x-3[/tex]
Remember that graphically, the solution(s) of a system of equations is always where the graphs intersect.
We can see that the two graphs intersect at (0, -3).
So, g(0) = -3 and f(0) = -3 also.
And that is the only point of intersection. So the only solution to our system here is (0, -3).
Jerome takes a math course and a science course for summer school. For every 4 hours Jerome spends studying math, he studies science for 3 hours. If Jerome spent a total of 49 hours studying last week, then how long did he study math?
What type of triangle is triangle ABC?
Give your reasons for your answer:
Answer:
a. Isosceles
b. It has two equal angles
Step-by-step explanation:
✅<DCA = <BAC = 50° (alternate interior angles are congruent)
<ACB = 180 - (<BAC + <ABC) (sum of triangle)
<ACB = 180° - (50° + 80°) (substitution)
<ACB = 50°
✅∆ABC is an isosceles triangle judging from the measure of its three angles. ∆ABC has two equal angles. ∆ABC is therefore an isosceles ∆.
What is the radius?
Diameter =36ft
Answer:
18ft
Step-by-step explanation:
Diameter is double the radius.
36/2=18
Answer:
r = 18 ft
Step-by-step explanation:
The radius is 1/2 of the diameter
r = 1/2 d
r =1/2 ( 36 ft)
r = 18 ft
To thank her five volunteers mai gave each of them the same number of stickers then she gave them each two more stickers altogether she gave them a total of 30 stickers
Answer: 4
Step-by-step explanation:
I got it right when i did my math
The equation which represents the given situation is 5(y + 2) = 30 and the value of y = 4.
What is an Equation?An equation is the statement of two expressions located on two sides connected with an equal to sign. The two sides of an equation is usually called as left hand side and right hand side.
Given that,
Total number of volunteers = 5
Mai gave each of them the same number of stickers.
Let y be the number of stickers she gave to each of them.
Then she gave 2 more stickers to each of them.
Then number of stickers each has = y + 2
Total number of stickers = 30
5(y + 2) = 30
5y + 10 = 30
5y = 20
y = 4
Hence the number of stickers each one has is 4.
Learn more about Equations here :
https://brainly.com/question/29657983
#SPJ2
algebra is hard
6-9y > 30-5y
Answer:
y=6
Step-by-step explanation:
6-9y>30-5y,-9y+5y>30-6, -4y>24,-4y/-4so -will concel -and 4 will cancel 4>24/4=y=6
Write an expression that has 5 terms and that is equivalent to 5x+y
The expression should be written when there is 5 terms and that is equivalent to 5x+y should be likely 5x + y - 2 + 3 - 1.
Calculation of an expression;Since we have to determine the 5 terms
And, it should be equivalent to 5x + y
So here the equation be like
= 5x + y - 2 + 3 - 1
hence, The expression should be written when there is 5 terms and that is equivalent to 5x+y should be likely 5x + y - 2 + 3 - 1.
Learn more about an expression here: https://brainly.com/question/24595897
The Reyes want grilled chicken and tilapia for dinner. Mrs.
Reyes finds that chicken sells at Php 150 per kilogram and
tilapia sells at Php 100 per kilogram. How many kilograms of
each she buy if the total cost is not to exceed to Php 450?
Answer:
Kilogram of chicken = 1
Kilogram of tilapia = 3
Step-by-step explanation:
Cost of chicken = 150 per kilo
Cost of tilapia = 100 per kilo
Number of kilos of each if total cost should not exceed 450
Let :
Number of kilo of chicken = x
Number of tilapia kilo = y
The constraint :
150x + 100y ≤ 450
We could choose some reasonable values of x and y then, test the constraint ;
If x = 1 and y = 3
150(1) + 100(3) = 450
Hence,
1 kilo of chicken with 3 kilos of tilapia offers the greatest combination of Number of kilograms of tilapia and chicken that could be purchased and still satisfy the maximum cost constraint.
Help plz:)))I’ll mark u Brainliest
9514 1404 393
Answer:
5
Step-by-step explanation:
The bottom left segment has length ...
84 -49 = 35
So, we can write the proportion relating the whole to that segment.
84/35 = 24x/50
Multiplying by 50/24, we get ...
x = (50/24)(84/35)
x = 5
Witch describes the slope of this line?
undefined
zero slope
negative slope
positive slope
Answer:
Undefined
Step-by-step explanation:
The amount Cami raised during last year’s charity walk, $45.50, is StartFraction 7 over 10 EndFraction of the amount she raised this year. Which equation represents n, the number of dollars she raised this year
Answer:
The equation is given by:
[tex]n = \frac{7}{10} \times 45.50[/tex]
Step-by-step explanation:
During last years's charity walk, she raised $45.50.
During this years walk, she raised n, which is 7/10 of this amount. So, the equation is given by:
[tex]n = \frac{7}{10} \times 45.50[/tex]
Answer: 45.50=0.7n
Step-by-step explanation:
Which of these is the smallest number: A.0.452
B. 45%
C. 0.045
Answer:
C. 0.045
Step-by-step explanation:
87 7/40 as a decimal
Answer:
87.175 :)
Step-by-step explanation:
A singles tennis court measures (8x – 2) ft long and (3x – 3) ft wide.Which expression represents the area of the court?
Answer:
The expression that represents the area of the court is: [tex]24x^2 - 30x + 6[/tex]
Step-by-step explanation:
Area of a rectangle:
A rectangle has length l and width w. The area of a rectangle is:
[tex]A = lw[/tex]
A singles tennis court measures (8x – 2) ft long and (3x – 3) ft wide.
This means that [tex]l = 8x - 2, w = 3x - 3[/tex]
Which expression represents the area of the court?
The tennis court is rectangular, so
[tex]A = lw = (8x - 2)(3x - 3) = 24x^2 - 24x - 6x + 6 = 24x^2 - 30x + 6[/tex]
The expression that represents the area of the court is: [tex]24x^2 - 30x + 6[/tex]
Can someone please help me Im so stressed out .
Answer:
38 students chose to fly
Step-by-step explanation:
add the female and male
PLEASE HELP! i have by the end of the day to turn this in. PLEASE DONT GUESS :)
Answer:
x = 101°
Step-by-step explanation:
180-147 = 32
180-47-33 = 101
also this is not college math what
Quadrilateral ABCD with AB = 5.5cm, BC = 3.5cm, CD = 4cm, AD = 5cm, and <A = 45°.
Step-by-step explanation:
hope it helps
mark me brainliest
Raul has 6 shoeboxes on his bookshelf. If he has 9 toy robots in each shoebox, how
many toy robots does Raul have?
A. 63
B. 54
C. 36
D. 15
< Back
Clear Answer
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pls answer this for me i would really appreciate it! i have a few minutes
You owe $748.11 in taxes, and you have paid $692.40. Which statement best describes your refund/taxes due?
A): You owe an additional $55.71.
B): You will receive a refund of $55.71.
C): You owe an additional $155.71.
D): You will receive a refund of $155.71.
Answer:
A.
Step-by-step explanation:
748.11 - 692.40 = 55.71
so you will still owe 55.71
Answer: A). You owe an additional $55.71.
Hope this helps :)
The first floor of a tiny house has the length of 11 feet. The width of the kitchen feet is 7 feet and the width of the bottom bathroom feet is 4 feet the expression 11(7+4) represents the total area in the square feet.
why an expression to represent a total area as a some of the areas of each room
Answer:
11 and 4
Step-by-step explanation: