Answer:
The length of string = 32.35 meter (Approx.)
Step-by-step explanation:
Given:
Vertical height of kite = 22 meter
Angle with horizontal = 43°
Find:
The length of string
Computation:
Using trigonometry function;
Vertical height of kite [Perpendicular] = 22 meter
The length of string[Hypotenuse]
Sin θ = Perpendicular / Hypotenuse
Sin 43 = 22 / Hypotenuse
0.68 = 22 / Hypotenuse
Hypotenuse = 22 / 0.68
Hypotenuse = 32.35 meter
The length of string = 32.35 meter (Approx.)
What is the volume of this sphere?
Use a = 3.14 and round your answer to the nearest hundredth.
8 mm
cubic millimeters
Answer:
Volume = 2,143.57 mm³
Step-by-step explanation:
Given:
radius (r) = 8 mm
π = 3.14
Required:
Volume of the sphere
Solution:
Volume of the sphere = ⁴/3πr³
Plug in the values
Volume = ⁴/3 × 3.14 × 8³
= ⁴/3 × 3.14 × 512
= 6,430.72/3
Volume = 2,143.57333
Volume = 2,143.57 mm³ (nearest hundredth)
Christine has a rectangular poster. The poster is 1.5 meters long and 1.2 meters wide. What is the area of the poster in square centimeters? Do not round your answer. Be sure to include the correct unit in your answer.
Please please please help will Mark brainliest help quick
Answer:
do it yourself kid.
Step-by-step explanation:
f(x)=7x-2 g(x)=x2+1 h(x)=3x (x at the corner of 3 ) a- find gh(2) b- find f-1(x)
Answer: 37, [tex]\frac{x+2}{7}[/tex]
Step-by-step explanation:
Given
[tex]f(x)=7x-2\\g(x)=x^2+1\\h(x)=3x[/tex]
now,
[tex]g(h(x))=(3x)^2+1\\g(h(x))=9x^2+1[/tex]
for x=2
[tex]g(h(2))=9\cdot (2)^2+1\\g(h(2))=36+1\\g(h(2))=37[/tex]
Inverse of [tex]f(x)[/tex] is given by
[tex]y=7x-2\\x=\dfrac{y+2}{7}\\\\f^{-1}(x)=\dfrac{x+2}{7}[/tex]
please help it’s a timed test. i’ll mark u branliest. find the measure of each lettered angle
Answer:
d = 162
a = 18
e = 144
g = 78
b = 18
s = 162
h = 84
e = 81
Step-by-step explanation:
Trust
A sample of Chlorine gas has a volume of 20 L and a pressure of 4 atm. What will the
pressure of the gas be if the volume is decreased to 5 L?
Step-by-step explanation:
[tex]from \: boyle 's \: law \\ P _{1}V _{1} = P _{2} V _{2} \\ (4 \times 20) = (P _{2} \times 5) \\ P _{2} = \frac{(4 \times 20)}{5} \\ P _{2} = 16 \: atm[/tex]
Help me plz i need this done soon ty :
Answer:
A. $47,403.20
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
For this, the question is about Simple Interest, so the formula is PRT
p- principal (the amount of money you started with)
r- (rate, also the percentage)
t- time (the amount of time it says, in years or so)
So, they had $45,580
Multiply that by 4%, and 4% is 0.04 so multiply 0.04 x 45,580 = 1,823.20. So, the answer is D
Hope this helps!!
-Ketifa
find the area of the
parallegram
Answer:
To find the area, multiply the base by the height. The formula is: A = B * H where B is the base, H is the height, and * means multiply. The base and height of a parallelogram must be perpendicular.
Step-by-step explanation:
hope it helps
please mark brainliest
Find the rate percent per annum at which birr 380 earns birr 128.25 in 7 years and 6 months?
Answer:
A = $4,035.13
Step-by-step explanation:
Given: 380 earns, 128.25 in 7 years and 6 months
To find: The rate percent per annum
Formula: [tex]A = P(1 + rt)[/tex]
Solution: I = A - P = $3,655.13
Equation:
A = P(1 + rt)
First, converting R percent to r a decimal
r = R/100 = 128.25%/100 = 1.2825 per year.
Solving our equation:
A = 380(1 + (1.2825 × 7.5)) = 4035.125
A = $4,035.13
The total amount accrued, principal plus interest, from simple interest on a principal of $380.00 at a rate of 128.25% per year for 7.5 years is $4,035.13.
i need help which one is the following is correct formula to find slope
Answer:
a
Step-by-step explanation:
Thanks in advance for your help
Answer:
CA=P+2Q
Step-by-step explanation:
ei
Draw
List
UP table with
your good and
Good Stuely habits
cose Study brow
your bad Study habite
Bal Study habits
В
14
b
Answer:
wha- I have no idea what your saying
find the surface area for both
giving brainliest
The Earth has diameter of 7,917.5 miles. What is the distance a plane would have to fly if it could fly around the entire equator? USE 3.14 for π and ROUND to the nearest HUNDREDTH.
Answer:
distance or circumference= 2πr
2× 3.14× 3958.75
nb I got the radius by dividing the diameter by two
= 24,869.95
to hundreth = 24900
??????????????????????
Answer:
Multiply by -2
Step-by-step explanation:
Additive inverse essentially means the counterpart that negates a number. Then, elimination can be used. In this case, the easiest change would be with the terms -4y in the first equation, and -2y in the second equation, since 2 is a factor of 4. So,
3x - 4y = -5
5x - 2y = -6
The goal here is to cancel out the -4y.
(5x - 2y)(-2) = (-6)(-2)
-10 + 4y = 12
3x - 4y = -5
Now it works.
Plz help me no links or fake I will report
Answer:
y=6x-38
Step-by-step explanation:
That's the answer for C
Find the height of the cone. Round to the nearest
hundredths if necessary
Answer:
height of cone is 1.5 2 feet
hope it helps.
Please help me (
9th grade math)
Georgia is reading at a rate of 2 pages everything 5 minutes. Which graph below shows the same unite rate?
Answer:
D
Step-by-step explanation:
Answer:
I can't see it bc it's not close enough but since it's (2,5) D should be right. If it's not right, then sorry ;-;
Each day of the work week, Mr. Harbin uses 34 of a gallon of gas. Which estimate best describes the amount of gas Mr. Harbin would use in a five day work week?
A
less than one gallon
B
between 2 and 3 gallons
C
between 3 and 4 gallons
D
more than 4 gallons
D. because each day =34 and it is 5days 5×34= 170 so the answer is more than 4 gallons
3) Find the area of the composite figure.
Answer:
356.93sq. cm
Step-by-step explanation:
Area of the composite figure = Area of rectangle + Area of semicircle
Area of rectangle = length * wiidth
Area of rectangle = 14cm * 20cm
Area of rectangle = 280 sq. cm
Area of semicircle = πr²/2
Area of semicircle = 3.14(7²)/2
Area of semicircle = 3.14 * 49/2
Area of semicircle = 76.93 sq. cm
Hence the area of the figure = 280 + 76.93
Hence the area of the figure = 356.93sq. cm
Solve: 7.2 + 3.5
Enter the correct numbers into the box to complete the equation.
7.2 + 3.5 = 7.2 + 3 + ___ = ___
Hello~
Here!
7 + 3.5
Ary~
-10x – 2y = -30
3x + 2y = 9
X=
Answer: x = 3
Step-by-step explanation:
-10x - 2y = -30
3x + 2y =9
use elimination method...
-2y and 2y = 0
-10x = - 30
3x = 9
add together...
-7x = -21
solve...
x= 3
What would be the area of the figure
Answer:
1.3 + 1.3 = 2.6
2.6 x 2.2 = 5.72
5.72 divided by 2 = 2.86
2.86 x 2 = 5.72
HELP
At a food truck, the cost of 3 burgers plus $3 is
equal to the cost of 5 burgers. The equation is
modeled below.
What is the cost of each burger?
Answer: the answer is the second one.
Step-by-step explanation:
add
Answer:
$1.50 will be your answer!
Step-by-step explanation:
3x+3=5x
3x+3-5x-3=5x-5x-3
-2x=-3
x=1.5
please help!! like ASAP
Answer:
A
Step-by-step explanation:
Dose someone know please
Answer:
i think its like:
see that middle angle there, thats a 90° angle and straight linea measure 180°. so add 90 + 21 and subtract from 180
What are the zeros of the quadratic function?
y = x^2 - 2x - 15
Answer:
[tex]x=\frac{1+\sqrt{31}}{2},\:x=\frac{1-\sqrt{31}}{2}[/tex]
Step-by-step explanation:
[tex]-> 0=2x^2-2x-15[/tex]
-zeros means the solution aka x intercept, meaning y=0
[tex]x_{1,\:2}=\frac{-\left(-2\right)\pm \sqrt{\left(-2\right)^2-4\cdot \:2\left(-15\right)}}{2\cdot \:2}[/tex]
=> according to quadratic formula
[tex]x_{1,\:2}=\frac{-b\pm \sqrt{b^2-4ac}}{2a}[/tex]
where [tex]ax^2+bx+c=0[/tex]
=> [tex]x_{1,\:2}=\frac{-\left(-2\right)\pm \:2\sqrt{31}}{2\cdot \:2}[/tex]
simplify
[tex]x_1=\frac{-\left(-2\right)+2\sqrt{31}}{2\cdot \:2},\:x_2=\frac{-\left(-2\right)-2\sqrt{31}}{2\cdot \:2}[/tex]
[tex]x=\frac{1+\sqrt{31}}{2},\:x=\frac{1-\sqrt{31}}{2}[/tex]
Cannot simplify farther
The length of a side and the corresponding height of a triangle are (x+3) cm and (2x-5) cm respectively. Given that thr area of the triangle is 20 cm^2, find the value of x.
Answer: 5
Step-by-step explanation:
Given
The length of a side is [tex]x+3\ cm[/tex]
The height of a triangle is [tex]2x-5\ cm[/tex]
Area of triangle is [tex]20\ cm^2[/tex]
Area of triangle is given by
[tex]\Rightarrow A=\dfrac{1}{2}\times \text{base}\times \text{height}[/tex]
[tex]\Rightarrow A=\dfrac{1}{2}\times (x+3)\times (2x-5)\\\\\Rightarrow 40=(x+3)\times (2x-5)\\\Rightarrow 2x^2+x-55=0\\\\\Rightarrow x=\dfrac{-1\pm \sqrt{1^2-4(2)(-55)}}{2(2)}\\\\\Rightarrow x=\dfrac{-1\pm 21}{4}\\\\\Rightarrow x=-5.5,5[/tex]
Neglecting negative value
Therefore, the value of x is 5.
There are four cards numbered 1 through 4. The number 2 card is chosen randomly and not replaced. Find the probability of choosing a second card that is the number 3.
Answer:
1/3
Step-by-step explanation:
since number 2 card was not replaced, we have;
probability of picking a second card, 3;
let S be number of sample space
n(S)= 4
n(3)= 1
Pr(3/2)= 1/3
(because since one was already chosen and n, the sample space would reduce)