PLZ HELP
An artist used silver wire to make a square that has a perimeter of 40 inches. She then used copper wire to make the largest circle that could fit in the square, as shown below. How many MORE inches of silver wire did the artist use compared to copper wire?
Answer:
The artist used 8.6 inches more of silver wire
Step-by-step explanation:
Perimeter of the square
P = 4*a
P = 4*a = 40 in
a = 10 in
Each side of the square has a length of 10 in
The diameter of the circle is equal to the length of the side of the square
Diameter = 10 in
Perimeter of the circle
P_c = 2*π*radius = π*diameter
P_c = (3.14)*10 in = 31.4 in
Inches of silver wire (square) = 40 in
Inches of copper wire (circle) = 31.4 in
40- 31.4 in = 8.6 in
I Hope This Helps.
if f=(x)=7(x-1)+8, what is the value of f(1)?
three point one four times eight squared
Answer:
200.96
Step-by-step explanation:
Hope it helps! Good luck with math.
Determine whether the triangles are similar.
Answer:
No
Step-by-step explanation:
Answer:
Yes or No = No
Simalarity Statement "TNS"
Step-by-step explanation:
a woman bought two tins of milk for 720 Naira how much did she pay for 12 tins
Answer:
$4320
Step-by-step explanation:
12 divided by 2 is 6
720 x 6 = 4320
I need to solve for the angle, but I just don't know how to do it! The equation is: Cos A=Sin3A
Can someone explain the formula so I can know how to do it, I will really appreciate it!
9514 1404 393
Answer:
A = 22.5°, 45°, 112.5°, 202.5°, 225°, 292.5°
Step-by-step explanation:
Use the angle reduction formula to reduce this to an expression involving only sine or cosine, then solve the resulting higher-degree polynomial.
sin(3x) = 3sin(x) -4sin³(x)
Using the identity for cosine, we have the radical equation ...
√(1 -sin²(A)) = 3sin(A) -4sin³(A)
Squaring both sides, we have ...
1 - sin²(A) = 9sin²(A) -24 sin⁴(A) +16sin⁶(A)
Letting z = sin²(A), this is the cubic equation ...
1 -z = 9z -24z² +16z³
16z³ -24z² +10z -1 = 0
Solving this by the usual methods, we find its factors to be ...
(2z -1)(8z² -8z +1) = 0
8(2z -1)((z -1/2)² -1/8) = 0 . . . . quadratic in vertex form
Then the roots are ...
z = (1 ±√(1/2))/2, z = 1/2
The angle solutions are ...
A = arcsin(±√z)
Of course, these need to be adjusted to fall in the domain of interest, and checked for extraneous solutions.
For z = 1/2-√(1/8), the angles are ...
A = ±22.5° ⇒ 22.5°, 157.5°, 202.5°, 337.5°
For z = 1/2, the angles are ...
A = ±45° ⇒ 45°, 135°, 225°, 315°
For z = 1/2+√(1/8), the angles are ...
A = ±67.5° ⇒ 67.5°, 112.5°, 247.5°, 292.5°
The angles that are in bold are the actual solutions; the others are extraneous.
_____
All of the above is "the hard way." A much simpler approach is to take advantage of the identity ...
cos(a) -sin(b) = (1/2)·sin(b/2 -a/2 -π/4)·sin(b/2 +a/2 -π/4)
Then you can use the zero product rule to find (for a=A, b=3A) ...
(3A/2 -A/2 -π/4) = nπ ⇒ A = nπ +π/4 ⇒ 45°, 225°
(3A/2 +A/2 -π/4) = nπ ⇒ A = (nπ +π/4) ⇒ 22.5°, 112.5°, 202.5°, 292.5°
_____
Rewriting the equation as a function equal to zero, the solutions are the x-intercepts of the graph. In the attached, the x-axis is set to degrees.
f(A) = cos(A) -sin(3A) = 0
Find the missing angle measures
Helppp por favor!!
J(-9, -2), K(-5, 1), L(1, -4), M(-3, -7)
is this is parallelogram?
Answer:
Yea, I'm pretty sure it is
Step-by-step explanation:
what is simple interest formula?
what is compound interest formula?
help me find the answer please need help asap
Steve is buying an $1160 T.V on the installment plan. He makes a down payments of 200 he has to make monthly payment of 55.25 fo 21/2 years what is his finance charge
Answer:
Finance charge = $200
Step-by-step explanation:
Cost of the T.V. = $1160
Steve did the down payment = $200
Monthly payment done by Steve = $22.5
Duration for the periodic payments = 2.5 years
Number of periodic payments to be done = 12 × 2.5
= 30
Amount paid in periodic payments = Number of periodic payments done × amount paid in each month
= 30 × $55.25
= $1657.5
Total payment done = Down payment + Amount paid in periodic payments
= $200 + $1657.5
= $1857.5
Therefore, finance charges = Total payments done - cost of T.V.
= 1857.5 - 1657.5
= $200
6th grade math !!!!!!!!!!!!!!
Answer: It's the second option
Step-by-step explanation:
0x1.5=0
1x1.5=1.5
2x1.5=3
3x1.5=4.5
4x1.5=6
It's simple math
Hope this helped
Help!! I need this ASAP
Answer:
x=15
Step-by-step explanation:
Well, you have 2 numbers that sum up to 90 (the angle) so you can first minus the one you know, making your number from 90-30=60. Now all thats left is the 4x=60, which you can do 60/4=15 to get your answer that x=15.
Answer:
x = 15
Step-by-step explanation:
The sum of 30 and 4x = 90, that is
4x + 30 = 90 ← equation to solve
Subtract 30 from both sides
4x = 60 ( divide both sides by 4 )
x = 15
(2x^2+4x+3) - (4x^2 -2x-3)
Answer:
x^{2}+6x+6 is your answer
Answer:
-2[tex]x^{2}[/tex] + 6x + 6
Step-by-step explanation:
2x^2 - 4x^2 = -2x^2
4x - (-2x) = 6x
3 - (-3) = 6
the sitting height (from the bottom of the seat to the top of the person's head) of female drivers is normally distributed with a mean of 34 inches and a standard deviation of 1.4 inches as shown below. If a car company designs a vehicle so that the roof is 34 inches from the bottom of the seat, what percentage of women would not fit in the driver's seat? A. 40% B. 50% C. 50.1% D. 60%
Answer:
B; 50%
Step-by-step explanation:
Here, we want to calculate the percentage of women that will not fit in the driver’s seat
We proceed as follows;
We start with calculating the z-score of this;
That would be ;
(x-mean)/SD
in this case;
x = 34 inches
mean = 34 inches
SD = 1.4 inches
Thus, we have that;
(34-34)/1.4 = 0/1.4 = 0
when z-score is 0, we are at the center of the distribution
A z-score of 0 corresponds to exactly 50%
4
Type the correct answer in each box. Use numerals instead of words,
is transformed to get function w.
The function f(x)
w(a) = -(35) }
4
What are the domain and the range of function w?
domain: 3 >
range:
w(I) <
Reset
Answer:
Domain/ 0
Rang/ -4
Step-by-step explanation:
Answer:
Domain/ 0
Rang/ -4
Step-by-step explanation:
I got a 100% on this test
Bill can mow the lawn in 2 hours, and his younger brother Tom can now it in 3 hours. If both brothers mow the lawn together, how many hours will it take them?
help me solve this problem? algebra I
which is the correct method to add rational numbers?
A a/b+c/b=ac/b B a/b+c/b=a+c/b C a/b+c/d=ac/bd Da/b+c/d=ac/b+d
Answer:
The answer is B
Hope it helps!
A professional quarterback passed for 4,383 yards in 16 games in one football season. He wants to know his passing yardage per game, assuming he passed for the same number of yards each game.
If he passed for the same number of yards each game, how many yards did he pass for in each game?
plz help me.
The answer would be 273.9375, or 274 yards a game rounding up.
Please help!!-help-help
Answer:
The scale factor is .5 I hope that this helps :)
Step-by-step explanation:
how do you calculate the area of a circle with the diameter? what's the formula?
What is the answer please I need emergency help I will mark you as brainlist✨✨✨
Answer:
D
Step-by-step explanation:
The absolute value of -5.8 is 5.8
I need help please fast mabey
Answer:
1: 80% is 4/5 of the whole quantity
2: 1/5 is 20% of the whole quantity
3: 50% is 1/2 of the whole quantity
4: 1 is 100% of the whole quantity.
answer fast pls
which of the following are exterior angles
Answer:
4, 2, 3
Step-by-step explanation:
Well interior angles you can cross out, so 6, 5, and 1 are out of the question, leaving the rest to be exterior angles.
ANSWER ASAP?please need help
Answer:
y = 1/2x + 4
Step-by-step explanation:
y = mx + b
m is slope = 1/2
b is y-intercept = 4
Simplify 3^6.3.
O A. 3^7
O B. 3^5
O c. 3^6
O D. 9^6
ASSSAPPP!!!!!!!!!!
Answer:
D. [tex]9^{6}[/tex]
Step-by-step explanation:
(3^6)(3)
(3*3)^6
[tex]9^{6}[/tex]
Urgent please get the domian and the range for this not just the Range PLEASE SUPER URGENT PLEASEEEE.
Answer:
Domain: [-5,4)
Range: (0, 4]
Step-by-step explanation:
You can see that the domain does not include the number four because of the open dot marking that spot, and the range does not include 0 because of this same reason.
I need help with this can anyone help me please
Answer:
the slope is 5/2
the y-intercept is -4
y=1−2x;x=9 can you please help
Answer:
17
Step-by-step explanation:
since you are given that x is 9 all you have to do is plug it in. So 1-2(9) 2 times 9 is 18 so 1-18=17
