Answer:
P = 45 W
Step-by-step explanation:
Given that,
The weight of a box, W = 90 N
Distance moved, d = 10 m
Time, t = 20 s
We need to find the amount of power used. The rate of doing work is called power It can be calculated as the formula,
[tex]P=\dfrac{W}{t}\\\\P=\dfrac{Fd}{t}\\\\P=\dfrac{90\times 10}{20}\\\\P=45\ W[/tex]
So, 45 W of power was used.
Help plz imagine attached
Answer:
Angle of elevation = 21.167°
Step-by-step explanation:
Given:
Horizontal distance cover by rover = 180 m
Vertical distance cover by rover = 65 m
Find:
Angle of elevation
Computation:
Using trigonometry function;
Sin θ = Perpendicular / Hypotenuse
⇒ Sin θ = Vertical distance cover by rover / Horizontal distance cover by rover
⇒ Sin θ = 65 / 180
⇒ Sin θ = 0.3611
⇒ Sin⁻¹ (0.3611) = 21.167°
Angle of elevation = 21.167°
39
x
27
Solve for x round to nearest 10th
Answer:
526.50
Step-by-step explanation:
39 x 27 = 1,053
1,053 divided by 2 = 526.5
rounded to the nearest tenth would be 526.50
(im not sure if its correct)
Answer:
whats the question
Step-by-step explanation:
The depth of the snow in my yard is normally distributed, with a mean of 2.5 inches and a standard deviation of 0.25 inches what value is one standard deviation above the mean
Let f open parentheses x close parentheses equals ln open parentheses x squared close parentheses space space space a n d space space space g open parentheses x close parentheses equals square root of e to the power of 3 x end exponent end root. Find f o g open parentheses x close parentheses and its domain?
Answer:
[tex](f\ o\ g)(x) = 3x[/tex]
[tex]-\infty < x < \infty[/tex]
Step-by-step explanation:
See comment for right presentation of question
Given
[tex]f(x) = ln(x^2)[/tex]
[tex]g(x)=\sqrt{e^{3x}}[/tex]
Solving (a): (f o g)(x)
This is calculated as:
[tex](f\ o\ g)(x) = f(g(x))[/tex]
We have:
[tex]f(x) = ln(x^2)[/tex]
[tex]f(g(x)) = \ln((g(x))^2)[/tex]
Substitute: [tex]g(x)=\sqrt{e^{3x}}[/tex]
[tex]f(g(x)) = \ln(\sqrt{e^{3x}})^2[/tex]
Evaluate the square
[tex]f(g(x)) = \ln(e^{3x})[/tex]
Using laws of natural logarithm:
[tex]\ln(e^{ax}) = ax[/tex]
So:
[tex]f(g(x)) = \ln(e^{3x})[/tex]
[tex]f(g(x)) = 3x[/tex]
Hence:
[tex](f\ o\ g)(x) = 3x[/tex]
Solving (b): The domain
We have:
[tex]f(g(x)) = 3x[/tex]
The above function has does not have any undefined points and domain constraints.
Hence, the domain is: [tex]-\infty < x < \infty[/tex]
drag the tiles to the correct boxes to complete the pairs. not all tiles will be used. match the values with the box plots.
I don't know I am on the same qusten sorry
find three rational numbees between -2/5 and -1/5
Answer:
-3/10, -25/100, -3/8
A rectangular gate is made using 6 straight pieces of steel.the weight of the steel is 2.5 kg per metre . Work out the total weight of the steel gare
Answer:
150 kg
Step-by-step explanation:
here is the complete question
A rectangular gate is made using 6 straight pieces of steel.
5 m
12 m
The weight of the steel is 2.5 kg per metre.
Work out the total weight of the steel gate.
To solve this question determine the square root of 12 and 5
√169 = 13
5 + 12+ 5 + 12+ 13 + 13 = 60 m
total weight = 60 x 2.5 = 150kg
Ken got to the school bus stop at 6:41 A.M. The bus came at 6:47 A.M. How long did ken wait for the school bus?
Answer:
6 minuets subtract 47 and 41 ur answer can be 6 or 46
please help!! will give brainliest ASAP
Answer:
c = 36.06
Step-by-step explanation:
a² + b² = c²
20² + 30² = c²
400 + 900 = c²
c² = 1300
[tex]\sqrt{c^2} =\sqrt{1300}[/tex]
c = 36.06
pls helppppp it's hard :(
Answer:
The answer is A .
Step-by-step explanation:
Good luck ;)
Quincy is having a sale at his store. He is selling a table for $450. If the sales tax is 8.5%, then how much will a customer need to pay in taxes if they buy the table?
Answer:
488.25
Step-by-step explanation:
Mr. Chow is buying rolls of paper for the school. This is a list of the suppliers, the size of their rolls, and their cost per roll. Supplier X sells 25 meter rolls for $18.98.
Supplier Y sells 30 meter rolls for $21.89.
Supplier Z sells 40 meter rolls for $29.59.
To the nearest cent, what is the cost per meter for a roll of paper from the LEAST expensive supplier?
A. $0.72 per meter
B. $0.73 per meter
O O O
C. $0.74 per meter
OD. $0.75 per meter
E. $0.76 per meter
Answer:
B.
Step-by-step explanation:
I rounded to the nearest cent and got the cost of 73 cents per meter.
Question Help
Fund A sells for $15 a share and has a 3-year average annual return of $0.25 a share. The beta value is 1.07.
Fund B sells for $17 a share and has a 3-year average annual return of $0.91 a share. The beta value is 0.77.
Jonquin wants to spend no more than $3600 investing in these two funds, but he wants to obtain at least $80
in annual revenue. Jonquin also wants to minimize the risk. Determine the number of shares of each fund that
Jonquin should buy.
Set up the linear programming problem. Let a represent the number of shares in Fund A, b represent the
number of shares in Fund B, and z represent the total beta value.
Minimize
z=0
subject to
15a + 17b
0.25a +0.91b
a 20, b20.
(Use integers or decimals for any numbers in the expressions. Do not include the $ symbol in your answers.)
Answer:
sana all may jowa jowain na kita
find the measure of angle A
Answer:
60 degrees
Step-by-step explanation:
All angles of a triangle will add up to equal 180 degrees.
Set up an equation to solve for x:
9x - 3 + 50 + 9x + 7 = 180
Combine like terms
18x + 47 + 7 = 180
18x + 54 = 180
Subtract 54 from both sides
18x = 126
Divide both sides by 18
x = 7
Now plug in 7 for x in the expression for angle A:
9(7) - 3
63 - 3
60
Check work:
60 + 50 + 9(7) + 7 = 180
110 + 63 + 7 = 180
173 + 7 = 180
180 = 180
Correct
Franco's bill for breakfast at a restaurant was $14.79. He left a 15% tip. What was the total cost of his breakfast, including the tip.
Step-by-step explanation:
15/100x14.79(simplify)
=217.9
Thanks
hope it helped.
Find the difference 0.2−0.05
Answer:
0.15
Step-by-step explanation:
:))))))))))))))))))))
Select the reason that supports the following statement.
Answer:
B. Subtraction property of equality
Step-by-step explanation:
If you subtract angle 3 from both sides, then angle two and angle four must be equal. The property you would be using is the subtraction property of equality.
Answer:
Subtraction property of inequality
Step-by-step explanation:
See
<2+<3=<3+<4As <3 is same on both sides We can cancel it out
The expression yields
<2=<4How can I get the answer for c
Don't you times by a thousand then times the answer
I got 60,000
Answer:
i think that's right
Step-by-step explanation:
What is the surface area of the triangular prism
Answer:
[tex]surface \: a = 9 \times 5 \\ = 45ft \times 2 \\ = {90}^{2} ft\\ surface \: b = \frac{1}{2} bh \\ = \frac{1}{2 } \times 6 \times 4 \\ = 3 \times 4 \\ = 12 \times 2 \\ = {144}^{2} ft \\ = 90 + 144 \\ = {234}^{2} ft[/tex]
Need help with these questions
Answer:
Area = 31.5 units²
Step-by-step explanation:
Area of the triangle = ½ × base × height
base = 9
height = 7
Substitute
Area = ½ × 9 × 7
Area = ½ × 63
Area = 31.5 units²
Elijah invested $530 in an account paying an interest rate of 8 % compounded
continuously, Cafter invested $530 in an account paying an interest rate of 8%
compounded annually. After 11 years, how much more money would Elijah have in
his account than Carter, to the nearest dollar?
Answer: the answer is $18
Step-by-step explanation:
h = -16t ^2 + 38t + 5.
Answer:
for rewrite in vertex form is -16(t-19/16)^2 + 441/16
for rewrite in intercept form is h= -16(t-5/2)(t+1/8)
Step-by-step explanation:
X^2+x-2=0
Factor
Fast
How many 18-pound patties can she make from 78of a pound of hamburger? We can 7 patties out of 78pound of hamburgers
Answer: 4.3
Step-by-step explanation:
she can make 4.3, 18 pound patties out of a 78 pound of hamburger
27
The diagram shows a right-angled triangle and a quarter circle.
D
9 m
А
6 m
B.
The right-angled triangle ABC has angle ABC = 90°
The quarter circle has centre C and radius CB.
Work out the area of the quarter circle.
Give your answer correct to 3 significant figures.
You must show all your working.
Answer:
A ≈ 35.3 units²
Step-by-step explanation:
Calculate the radius CB using Pythagoras' identity in the right triangle.
CB² + AB² = AC²
CB² + 6² = 9²
CB² + 36 = 81 ( subtract 36 from both sides )
CB² = 45 = r²
Then area of quarter circle is
A = [tex]\frac{1}{4}[/tex] × πr² = [tex]\frac{1}{4}[/tex] × π × 45 ≈ 35.3
Use the net as an aid to compute the surface area of a triangle pyramid with an equilateral triangle base
Answer:
106 ft 2
Step-by-step explanation:
Answer:
323 in
Step-by-step explanation:
Pls help me for my 6th grade study buddy review pls explain the equation
Brainliest for correct answer
solve the system of equations 3(x+y)-7=12x+y 6(y-2x)
Answer:
Step-by-step explanation:
☁️ Answer ☁️
Sup m8, ur answer is:
x = 6y^2 - 3y + 7 / 3 (4y - 3)
(Sorry if I made any mistake)
Hope it helps.
Have a nice day noona/hyung.