Answer:
2.5 inches
Step-by-step explanation:
Using Alfonso's scale of the drawing, which is 1in=10 ft, we can conclude the height of the tower to be 2.5 inches because
the actual height of the tower is 25 feet
10+10=20, which by following the scale, is 2 inches
we then have 5 left, 5 being half of 10, and .5 being half an inch.
Therefore the height of the tower using Alfonso's scale is 2.5 inches.
Hope this helps and take care
Please help me.......................
Answer:
I think that the answer is
-g + 12
I used a math check calculator and it said that the above is the answer
Let R be a region in the xyâplane and β >0 be a constant. What is the region R that will minimize the value ofintegral(x^2 + y^2 - b^2)?
Let R be region in the xy-plane and β>0 be the constant. What is the region R that will minimize the value of integral (x² + y² - β²).
i.e.
[tex]\int \int _R (x^2 +y^2 - \beta^2) \ dA[/tex]
Answer:
0
Step-by-step explanation:
Given that:
[tex]\int \int _R (x^2 +y^2 - \beta^2) \ dA[/tex]
where;
R is the region in the xy-plane.
To minimize our double integral, we have to determine the region over which the function we are integrating has a negative value.
x² + y² - β² ≤ 0 ; where β > 0 is a constant
x² + y² ≤ β² is the circle with center (0,0)
Radius "β" because R: x² + y² ≤ β²
The polar coordinates: x = rcosθ and y = rsinθ
x² + y² = r²
⇒ r limits : r = 0 → β
⇒ θ limits : r = 0 → 2π
[tex]\iint_R(x^2+y^2-\beta^2) \ dA =\int\limits ^{2 \pi}_{\theta=0} \int \limits ^{\beta}_{r=0}( \beta^2 -\beta^2) \ rd \ rd\ \theta[/tex]
[tex]\int \int _R (x^2 +y^2 - \beta^2) \ dA[/tex] = 0
A manufacturer of running shoes knows that the average lifetime for a particular model of shoes is 15 months. Someone in the research and development division of the shoe company claims to have developed a longer lasting product. This new product was worn by 25 individuals and lasted on average for 17 months. The variability of the original shoe is estimated based on the standard deviation of the new group which is 5.5 months. Is the designer's claim of a better shoe supported by the trial results?
Answer:
The decision rule is
Fail to reject the null hypothesis
The conclusion is
There is no sufficient evidence to show that the designer's claim of a better shoe is supported by the trial results.
Step-by-step explanation:
From the question we are told that
The population mean is [tex]\mu = 15 \ months[/tex]
The sample size is n = 25
The sample mean is [tex]\= x = 17 \ months[/tex]
The standard deviation is [tex]s = 5.5 \ months[/tex]
Let assume the level of significance of this test is [tex]\alpha = 0.05[/tex]
The null hypothesis is [tex]H_o : \mu = 15[/tex]
The alternative hypothesis is [tex]H_a : \mu > 17[/tex]
Generally the degree of freedom is mathematically represented as
[tex]df = n -1[/tex]
=> [tex]df = 25 -1[/tex]
=> [tex]df = 24[/tex]
Generally the test statistics is mathematically represented as
[tex]t = \frac{\= x- \mu }{\frac{s}{\sqrt{n} } }[/tex]
=> [tex]t = \frac{ 17 - 15 }{\frac{5.5}{\sqrt{25} } }[/tex]
=> [tex]t = 1.8182[/tex]
Generally from the student t distribution table the probability of obtaining [tex]t = 1.8182[/tex] to the right of the curve at a degree of freedom of [tex]df = 24[/tex] is
[tex]p-value = P(t > 0.18182 ) = 0.4286[/tex]
From the value obtained we see that [tex]p-value > \alpha[/tex] hence
The decision rule is
Fail to reject the null hypothesis
The conclusion is
There is no sufficient evidence to show that the designer's claim of a better shoe is supported by the trial results.
Caleb draws two triangles (image)
Answer:
no no yes yes
Step-by-step explanation:
Find the domain : 15 - sq root (x+2)
Answer:
x ≥ -2
Step-by-step explanation:
Solve an equation. 24 kg = ___ g
Answer:
24000 regular grams
Answer: 24000
Step-by-step explanation: because you have to multiply the mass value by 1000
An Air Force plane left Paris and flew toward Moscow. A cargo plane left one hour later flying 40 km/h faster in an effort to catch up to it. After four hours the cargo plane finally caught up. What was the Air Force plane's average speed?
(Use box method)
Their is your answer hope i get a like
Answer:
The plane is traveling at 160 km/h
Step-by-step explanation:
This is because if the first plane is traveling at 160 and flies for 5 hours it'll travel 800 km. then the second plane will have to catch up in 4 hours since it left an hour late, this means traveling at 160 km with an extra 40 km in 4 hours will get it to the first plane at 800 km in the 4 hours given
13. F(x)= -2x squared help please
Answer:
Step-by-step explanation:
(0,-2)
Triangles are 3 sided polygon's. true or false?
True Triangles are 3 sided polygon's
Does (2,-3) satisfies the equation 5x+3y=1
Answer: Yes
Step-by-step explanation: We're going to have to substitute
in the coordinates of that ordered pair into the equation.
I am going to substitute in the x and substitute in the y.
So it's really 5(2) + 3(-3) = 1.
From here it should be pretty straightforward,
all we are doing is evaluating the statement.
Simplifying on the left we have 10 + -9 = 1 or 1 = 1.
Now we know that the ordered pair (2, -3) satisfies this equation.
34
x 56
show your work and solve the equation
Answer:
1,904
Step-by-step explanation:
Multiply the bolded number first
34
x 56
----------
204
Multiply the 2nd group of bolded number
34
x 56
----------
170
Add 0 as a place holder
34
x56
---------
204
1700
Add the 2 answers together
1700
+ 204
-----------
1.904
Hopefully that helped!!!!
Find each value if f(x) = 2x- 1 and g(x) = 2 - x2,
f(12)
f(0)
Patricia can drive 36 kilometers for every 3 liters of gas she puts in her car.
Complete the table using equivalent ratios.
Kilometers Liters
36 3
48 ____
____ 11
Answer:
There are two, the first one is 4 and the second is 132
Step-by-step explanation:
36 divided by 3 is 12, so 48 divided by 12 would give us the answer 4. In the last one, you multiply 11 by 12 instead.
Step-by-step explanation:
the second one is 132 uuwwuu
Drag and Drop. Determine whether the following descriptions belong to countries with a limited government or unlimited government.
Answer: unlimited: the military attacked a group of peaceful protesters fighting for the night to form professional unions and citizens were imprisoned for traveling to another part of the
Country without a government permit. The other two are limited government
Answer:
Step-by-step explanation:
(a) What percent of 76 is 19?
(b) 68 is 85% of what?
Answer:
A. 25
B. 80
Step-by-step explanation:
Hope this helped, Have a Wonderful Day/Night!!!
Five pounds is equal to 2.268 kilograms. How many kilograms is 2 pounds?
O 0.4536
O 0.9072
1.8144
O 4.536
Answer:the answer is 0.9072 or B
Step-by-step explanation:
-5(4m - 6) + (-9 + 7m)
Answer:
-13m + 21
Step-by-step explanation:
How long is 70% of 60 mins
Answer:
140%of minutes
Step-by-step explanation:
Answer:
42 minutes
Step-by-step explanation:
Store A is selling 7 pounds of bananas for $7:00. Store B is selling 3 pounds of bananas for $6:00. Which Store has the better deal
Answer:
Store A has a better deal
Step-by-step explanation:
Answer:
Store A has the better deal
Step-by-step explanation:
People would see that 7 pounds of bananas is worth 7$ and would buy from store A instead of store B for selling a lesser amount for almost the same price.
GIVING BRAINLIST ASAP
A basketball that sold for $65 is marked up to $70.20. What is the percent of the markup?
i got 8%
Amount of markup:
70.20 −65.00= 5.20
Markup as a percentage of original price
5.20/65.00 x 100 = 8
please help me asap
Answer:
3) 2 and 2/9
4) 1 and 1/9
Step-by-step explanation:
convert 6¼ % to fraction
Answer:
[tex]\frac{1}{16}[/tex]
Step-by-step explanation:
[tex]6\frac{1}{4}=\frac{25}{4}[/tex]
since percent means divided by 100
[tex]\frac{25}{4} *\frac{1}{100}[/tex]
=[tex]\frac{1}{16}[/tex]
Answer:
1/16
Step-by-step explanation:
625/10000
What is 100/82 ×683.3
Answer:
833.29
Just work it out on a piece of paper.
)Hannah's electricity company charges her $0.15 per kWh (kilowatt-hour) of electricity, plus a basic connection charge of $25.00 per month. Write a linear function that models her monthly electricity bill as a function of electricity usage.
Answer:
Linear function: y = 24x + 25
Step-by-step explanation:
24 hours = 1 day
30 days = 1 month
0.15 x 24 = 6
30 x 6 = 180
180 + 25 = 205
Linear function: y = 24x + 25
Hope this helps! :)
You are making punch for a baby shower. Your make 6 quarts of punch. How many pints of punch did you make?
8 oz = 1 cup
2 cups = 1 pint
2 pints = 1 quart
4 quarts = 1 gallon
I HATE THIS APP PEOPLE PUT FAKE ANWSERS ALL THE ONES I PUT WERE WRONG
Answer:
ok?
Step-by-step explanation:
Answer:
Avocados from Mexico
Step-by-step explanation:
Difference between 25 and the product of two and three
Answer:
19
Step-by-step explanation:
25 - (2×3) = 25 - 6 = 19
.........
Marie can find the volume of a cube by using the formula V = s³, where s represents the side length of the cube. If Marie’s cube has a side length of 2 1 2 centimeters, what is the volume of her cube? Show your work. Write your answer as a fraction and a decimal.
Answer: 7 1/2 cubic cm
Step-by-step explanation:
describe how to solve a system of equations using elimination
Answer: In the elimination method you either add or subtract the equations to get an equation in one variable. When the coefficients of one variable are opposites you add the equations to eliminate a variable and when the coefficients of one variable are equal you subtract the equations to eliminate a variable.
Step-by-step explanation:
Answer:
In the elimination method you either add or subtract the equations to get an equation in one variable. When the coefficients of one variable are opposites you add the equations to eliminate a variable and when the coefficients of one variable are equal you subtract the equations to eliminate a variable.
Step-by-step explanation:
plz help me thanks very nuch whoever helped me
Answer:
(1) 56 miles/hour
Step-by-step explanation:
We need to find the average rate of change from t = 2 to t = 9.
At t = 2 hours, d = 106 miles.
At t = 9 hours, d = 498 miles.
The average rate of change in function f(x) from x = a to x = b is
[f(b) - f(a)]/(b - a)
average rate of change from t = 2 to t = 9 =
(498 - 106)/(9 - 2) = 392/7 = 56
Answer: (1) 56 miles/hour