The length of the windshield wiper to the nearest inch is 24 inches
How to calculate the area of a sectorThe formula for calculating the area of a sector is given as:
A = r²β/2
r is the length of the wiper
β is the subtended angle
Given the following
A = 500.3 square in
β = 98 degrees = 98pi/180 = 49pi/90
Substitute
500.3 = r²49pi/180
500.3 = 153.86r²/180
153.86r² = 90054
r² = 585.298
r = 24.19
Hence the length of the windshield wiper to the nearest inch is 24 inches
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Find the equation of the line that passes through the points: (2, 2) and (3, 4)
Answer:
y=2(x-2) +2
Step-by-step explanation:
4.
—-
——
help please
math geniuses pls help!!!
pls check other questions too!
Answer:
Always in the range zero to one
Step-by-step explanation:
Option c is the answer
#88 will give brainliest to the best response!
Answer:
Mean: 80
Mode: 81
Median:81
Step-by-step explanation:
First, let's get the set of numbers from this Stem-and-Leaf plot:
[60,61,73,75,79,81,81,81,92,96,98]. From here we can solve for the mean by adding all the numbers up and dividing it by the number of terms that we have: [tex]\frac{60+61+73+75+79+81+81+81+92+96+98}{11} = 80[/tex] when rounded to the nearest whole number. The median is the middle number of the set when arranged from least to greatest, in this case, the median is 81.
Hope this helps! :)
Find the equation of the line that
is perpendicular to y = -8x + 2
and contains the point (-4, 1).
Answer:
Step-by-step explanation:
Perpendicular lines will have negative inverse slopes of each other. In this case, the slope of the known line is -8. The negative of -8 or -(-8) is just +8. The inverse of +8 is +1/8.
Now we know the slope of the line perpendicular to y=-8x+2 and we are given the point (-4,1).
All linear lines have the form of y=mx+b and we know the slope.
y=1/8x+b
We plug in (-4,1) into the equation:
1=1/8 * -4 +
1=-1/2+b
b=3/2
We now have the b constant and can simply just write the equation:
y=1/8x+3/2
Answer:
=-8x+2
Step-by-step explanation:
step by step explanation
Write the inequality given in the diagram below
Answer:
x < 2
Step-by-step explanation:
the open circle above 2 on the number line indicates that x cannot equal 2
the arrow points left indicating values of x are less than 2 , that is
x < 2
help please!! ⬇️⬇️
find the volume
In two or more complete sentences, determine the appropriate model for the given data and explain how you made your decision. (2,-1), (3,0.5), (6,1.5), (9,2)
Pease help :((
The solution to the question is arrived at using the knowledge of mathematical models.
What is a mathematical model?A mathematical model is a linguistic and mathematical concepts-based description of a system.
The appropriate model for the given data is:
Because there are discrepancies and no direct equation that can complete all of these points, a Least Square Regression Line is the best option for resolving this problem.
They could be outliers, so we need use a calculator to create a regression line to find the residual value.
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b) The mean of 7, 5, 0, 1, 3, 4 and h is 10. Find the value of h.
Step-by-step explanation:
mean =10
sum of no =7+5+0+1+3+4+h=20+h
N=7
now
mean=sum of no/N
10=20+h/7
10×7=20+h
70-20=h
h=50
the hypotenuse of a right triangle has endpoints (2,7) and (11,-5) what is the perumeter of the triangle?
Answer:
36 units
Step-by-step explanation:
Using the coordinates, you can find the length of each leg of the triangle.
Find the distance between the x-coordinates, 2 and 11 by subtracting.
11 - 2 = 9.
Find the distance between the y-coordinates, 7 and -5 by subtracting.
7 - (-5)
7 + 5 = 12
The two legs of the right triangle are 9 and 12.
Use the pythagorean theorom to find the hypotenuse.
[tex]a^{2} +b^{2} =c^{2} \\9^{2} +12x^{2} =c^{2} \\81 + 144 = c^{2} \\225 = c^{2} \\\sqrt{225}=\sqrt{c^{2} } \\c = 15[/tex]
The three sides of the triangle are 9, 12, and 15. To find the perimeter, add the sides together.
9 + 12 + 15 = 36
line plots please help
Answer:
46 hours do the students play video games per week
What is 1/2 + blank = 7/8?
Can someone please answer this, ill give you brainliest Would be very appreciated.
[tex]\bf Blue \ Color \ Line : y = x^2[/tex]
If you are going to make it open from downwards. The function should be negative : -(x)²If the graph moves 10 units downwards. : y = (x)² - 10If you are going to move the graph horizontally 2 units left. : y = (x+ 2)²When added all together:
[tex]\bf Black \ color \ Line: y=-\left(x+2\right)^{2}-10[/tex] = Final answer.
Can someone pls help me ASAPP
the answer is 48 square 72
Step-by-step explanation:
72+46=48square and 48square x 0
please help!! geometry problem need asap
Answer:
Step-by-step explanation:
pls help im confused
Use the drop-down menus to order the decimals from greatest to least.
8.31, 8.296, 8.06, 8.3
8.31 8.3 8.296 8.06
youre welcome
The correct order from greatest to least is: 8.31, 8.3, 8.296, 8.06.
How to to order the decimals from greatest to least.let's order the decimals from greatest to least:
1. 8.31
2. 8.3
3. 8.296
4. 8.06
So, the correct order from greatest to least is: 8.31, 8.3, 8.296, 8.06.
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During normal breathing, about 12% of the air in the
lungs is replaced after one breath. If the initial amount of
air in the lungs is 500 mL, how much of the original air is
present after 8 breaths?
The original air present after 8 breaths will be equal to 179.81 ml.
What is an equation?
The equation in mathematics is the relationship between the variables and the number and establishes the relationship between the two or more variables.
It is given in the question that:-
During normal breathing, about 12% of the air in the lungs is replaced after one breath
If the initial amount of air in the lungs is 500 mL
how much of the original air is present after 8 breaths?
The calculation for the eduction of the air will be done by the following equation:-
[tex]\rm =Volume \ present\times (0.88)^n\\\\\\= 500\times (0.88)^8[/tex]
=179.88 ml
Hence original air present after 8 breaths will be equal to 179.81 ml.
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Answer:
8 breathes = 179.81 ml.8 breathes = 179.81 ml.8 breathes = 179.81 ml.8 breathes = 179.81 ml.8 breathes = 179.81 ml.8 breathes = 179.81 ml.8 breathes = 179.81 ml.8 breathes = 179.81 ml.8 breathes = 179.81 ml.8 breathes = 179.81 ml.Step-by-step explanation:
Find the area of the figure. A. 24.3 ft2 B. 38.1 ft2 C. 48.6 ft2 D. 35.7 ft2
The area of the figure is the amount of space on it, and the calculated area is 48.6 square feet
How to determine the area?The figure is a triangle with the following parameters:
Base = 20
Height = 4.86
The area of a triangle is:
Area = 0.5 * Base * Height
So, we have:
Area = 0.5 * 20 * 4.86
Evaluate
Area = 48.6
Hence, the calculated area is 48.6 square feet
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In how many ways can 7 people be seated in a row of chairs if two of the people, Wilma and Paul, refuse to sit next to each other
Answer:
let X be the number of ways they can be seated without condition,
let M the the number of ways they can be seated if the two people must sit together,
let N be the number of ways they can be seated if the two must not sit together.
X=7! =5040
M= 6!× 2!=1440
M+N=X
then N=X–M=5040–1440=3600ways
A rectangle has a perimeter of 80 centimeter. its height is four times the length of its base. what is the lenght of its base?
Answer:
8 cm
Step-by-step explanation:
To find the length of the rectangle's base, form 2 equations using the given information.
Perimeter of rectangle= 2(height +base)
Let the lengths of the height and base of the rectangle be h and b cm respectively.
Perimeter= 80
2(h +b)= 80
h +b= 80 ÷2
h +b= 40 -----(1)
h= 4b -----(2)
Let's solve by substitution!
Substitute (2) into (1):
4b +b= 40
5b= 40
b= 40 ÷5
b= 8
Thus, the length of its base is 8 cm.
(a+4)²-11(a+4)- 42 factorize
[tex](a+4)^2 -11(a+4) -42\\\\=x^2 -11x -42~~~~~~~~~~~~~~~~~~~~~~~~;[a+4 = x]\\\\=x^2 -14x +3x -42\\\\=x(x-14) +3(x-14)\\\\=(x+3)(x-14)\\\\=(a+4+3)(a+4-14)~~~~~~~~~~~~;[\text{Substitute back}~ a+4 =x]\\\\=(a+7)(a-10)[/tex]
Answer:
(a - 10) (a + 7)
Step-by-step explanation:
⠀
⠀
⠀⠀⠀⠀□ Question(a + 4)² - 11(a + 4) - 42
Fractorize
⠀
⠀
⠀⠀⠀⠀■ Solution⠀
⠀
Let (a + 4) = xSo the equation will be
⠀
[tex] \sf \large {x}^{2} - 11x - 42[/tex]
⠀
⠀
Using spitting the middle term method.⠀
[tex] \sf {x}^{2} - 14x + 3x - 42[/tex]
⠀
⠀
Taking common⠀
[tex] \sf x(x - 14) + 3(x - 14)[/tex]
⠀
[tex] \sf (x - 14)(x + 3)[/tex]
⠀
⠀
Putting value of 'x'⠀
[tex] \sf (a + 4 - 14)(a + 4 + 3) \\ \\ \boxed{ \frak{(a - 10)(a + 7)} } [/tex]
⠀
Need help please answer ASAP!
Perimeter of larger sail
10+24+2660ftNow
Let shorter sail's Perimeter be x
x/6=60/10x/6=6x=36#2
Let they be 2x and 7x
2x+7x=1809x=180x=20Smaller angle
20(2)=40What is Surface area for 5ft, 16ft, and 8ft
The surface area of the given rectangular prism is:
S = 496 square feet.
How to find the surface area?
For a rectangular prism of length L, width W, and height H is:
S = 2*(L*W + W*H + L*H).
In this particular case, we have:
L = 5ftW = 16ftH = 8ft.If we replace that in the surface area equation, we will get:
[tex]S = 2*(5ft*16ft + 5ft*8ft + 16ft*8ft) = 496 ft^2[/tex]
The surface area of the rectangular prism is 496 square feet.
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Find the slope between the two given points:
5. (3,4) and (6,7) 6. (-2,-6) and (-1,-4)
Please show Work Due Tommorow!!!!
I will give brainiest if it's right
Answer:
5.1 6.2
Step-by-step explanation:
5.y2-y1/x2-x1
7-4/6-1=1
6.y2-y1/x2-x1
-4+6/-1+2=2
if you work 8 hours every two days, how many hours will he work in 7 days
Answer:
28 hours for 7 days
Step-by-step explanation:
8/2 =
4
4 hours for 1 day
1 x 7 =
7
7 x 4
28
28 for 7 days
Answer:
I would say the answer is 28
Step-by-step explanation:
In two days, you would work 8 hours. To make sense, in one day you would work 4 hours.
Mulitply 4*7
or
2 days: 8 hrs
4 days: 16 hrs
6 days: 24 hrs
7 days: 28hrs
Good evening! Can someone please answer this, ill give you brainliest and your earning 50 points. Would be very appreciated.
Answer:
1) x² + x
2) Check Below.
Explanation:
step 1 = 2 sqauresstep 2 = 6 squaresstep 3 = 12 squaresHence sequence can be created:
2, 6, 12
Find difference:
2, 6, 12
4 6
2
Find Equation:
2a = 2a = 1Then,
3a + b = 4b = 4 -3(1)b = 1Then,
a + b + c = 2c = 2 - 1 -1c = 0So Equation:
ax² + bx + c --- main formulaex² + 1x + 0 x² + x [equation]B)With Step Increasing, The step number multiplies the step number and plus the step number. That is the number of squares.
Given function g(x) = 3/x, and composite function gh(x) = 64, find h(x)
The key to this problem is to identify the functions; isolate the functions dependent on only x; and define each function in terms of x. Once every function is in terms of x then we can apply them to the equation that needs to be solved. Identify the functions: Here we are given four functions f(x); g(x); h(x); and i(x) so anytime we see these letters appear in an equation is where we would substitute the function. Isolate the functions dependent on only x: At a glance we can tell that only g(x) is purely in terms of x, every other function contains another function within their equations.
Define each function in terms of x: Since g(x) is in terms of x and i(x) contains g(x) then we can substitute 3x+4 for g(x) making i(x)=(x-2)*(3x+4) which then simplifies to i(x)=3x2-2x-8
Since h(x) contains i(x) then we can substitute the i(x) we made in 3a to get h(x)=3x2-11-(3x2-2x-8) which then simplifies to h(x)=2x-3
Since f(x) contains g(x) and h(x) then we can substitute those equations to get f(x)=2(3x+4)-(2x-3) which then simplifies to f(x)=4x+11
Now we apply our defined equations to the equation in question. There are two ways to do this, we can either apply our x values to each individual equation first or make the equation in question in terms of x. In this case I will make the equation in terms of x first. The first part of this process is understanding that the ° symbol does not represent degrees in this case, it represents the substitution of a function into another function. For example, if you saw (f°g)(x) then you would take the equation for g(x) and substitute it for every x value in the f(x) equation. Based on the process around ° it would be best to start from i(x) and work backwards to f(x) then h(x). So 2i=2(i(x))=2(3x2-2x-8)=6x2-4x-16 Ignoring the 3 we then evaluate f°2i=f(2(i(x)))=4(6x2-4x-16)+11=24x2-16x-64. Then we multiply the 3 to get 3f°2i=3(24x2-16x-64)=72x2-48x-192
Then we get to h°3f°2i=2(72x2-48x-192)-3=144x2-96x-384 which can simplify to 48(3x2-2x-8) or 48(3x+4)(x-2).
Finally we can divide g(x) making (h°3f°2i÷g)(x)=(48(3x+4)(x-2))/(3x+4)=48(x-2)
With the final equation in terms of only x we can finally solve by substituting each x value, giving us -288 when x=-4; -240 when x=-3; and 0 when x=2.
It took Shane 2 hours to drive 120 miles. If she continues at this rate, how far will she travel in 4 hours and 30 minutes?
Answer:
270 miles
Step-by-step explanation:
If she drove 120 miles in 2 hours, that means she drives at 60 miles per hour. 4 hours and 30 minutes can be seen as 4.5, since 30 minutes is half an hour. So then you multiply 60 by 4.5 and get 270.
solve inequality
-3m > 75
Step-by-step explanation:
-3m > 75
3m < -75
m < -25
that's it.
Answer:
m< - 25
Step-by-step explanation:
-3m > 75
(-3m)/(-3) <75/(-3) (divide both members by (-3) (which is a negative number so ">" becames "<")
m<-25
Guys I really need some help this is due tomorrow Help me asap
I hope y’all know how to margin of error please help me ASAP
Answer:
please explain the question better so sorry
Step-by-step explanation:
I can't understand the question please explain it and I'll help the best I can