Answer:
We can conclude that there is significant evidence that Northwood residents owned their homes for a longer period of time compare to residents in the Southlake area
Step-by-step explanation:
H0 : μ1 = μ2
H1 : μ1 < μ2
Given :
n1 = 14 ; n2 = 28
x1 = 7.4 ; x2 = 9.1
s1 = 2.3 ; s2 = 2.9
α = 0.05
Test statistic :
(x1-x2) ÷ sqrt[(((n1-1)*s1² + (n2-1)*s2²) ÷ df) * (1/n1+1/n2)]
(7.4 - 9.1) ÷ sqrt[(((13*2.3^2) + (27*2.9^2)) ÷ 40) * (1/14 + 1/28)]
t = -1.7 ÷ sqrt[((68.77 + 227.07) / 40) * 0.1071428]
t = -1.7 ÷ sqrt(0.7924281488)
t = - 1.7 ÷ 0.8901843
t = - 1.909
t = - 1.91
The Pvalue :
P(t < - 1.91) = 0.028067
At α = 0.05 ;
Pvalue < α ; We reject the Null
We can conclude that there is significant evidence that Northwood residents owned their homes for a longer period of time compare to residents in the Southlake area
If 0.09/x = 1, then x =
Answer:
[tex] \frac{0.9}{x} = 1 \\ x = 0.9[/tex]
state three different between the fundamantal and derived quantities
Step-by-step explanation:
Derived=Depends on other quantities, obtained from product or division of fundamental quantities, exist a large number of derives units in the metric system
Fundamental=Independent, can't be expressed in terms of derived units, only seven fundamental units exist in the n metric system.
The dimension of a rectangular prism are 5cm, 5 cm, and 2 cm determine the surface area
A. 50 cm
B. 25 cm
C. 60 cm
D 120 cm
E. 90 cm
Answer:
A 50
Step-by-step explanation:
Multiply 5 x 5 to get 25. Then multiply 25 x 2 to get 50 as the surface area!
Hope this helps! Pls mark brainliest!
HELP IM GIVING BRAINLIEST!!!
Answer:
I think H
Step-by-step explanation:
Answer:
It is F I belive I hope this helps
If you answer this for me I’ll give you brainless
Answer:
Step-by-step explanation:
area = [tex]3.14*(22)^2 = 1519.76[/tex]
is a polygon with 4 sides and 4 angles
a. Triangle
b. Quadrilateral
c. Polygon
Answer:
Quadrilateral is a polygon with 4 sides and 4 angles
Answer:
Quadrilateral
=> hope it helps
Of the 800 participants in a marathon 120 are running to raise money for a cause how many participants out of 100 are running for a cause
Answer:
15%
Step-by-step explanation:
Step-by-step explanation:
120 out of 800 are running for a cause. = 15 are running for a cause. 15 out of a 100 = 15%
Simplify
3(2p+5)-4p+3(5-1)
Answer:
2p+27
Step-by-step explanation:
6p+15-4p+15-3
2p+27
Answer:
2p+27
Step-by-step explanation:
3(2p+5) - 4p + 3(5-1)
so now we expand the brackets...
so we have
6p + 15 - 4p + 15 - 3
and now we group like terms....
so
6p + 4p + 15 + 15 - 3
and now we do the addition and subtraction
so our final answer is
2p + 27
A Leopoldo su Maestra l le pidió que calcular el perímetro de un rectángulo que tiene las medidas que se indican en el dibujo cuánto mide su perímetro
Answer:
Lo siento, no puedo ayudarte, porque esta resonancia es porque no tienes una imagen ni nada para que yo te ayude, lo siento, espero que tengas un buen día.
Step-by-step explanation:
Ten less than 5 times the value of a number is equal to 10 times the quantity of
12 more than one-fourth of the number. If a is the number, what is the value of a?
Answer:
The value of a is 52.
Step-by-step explanation:
Ten less than 5 times the value of a number
5a - 10
is equal to 10 times the quantity of 12 more than one-fourth of the number.
This means that:
[tex]5a - 10 = 10(12 + \frac{a}{4})[/tex]
If a is the number, what is the value of a?
Solving the equation:
[tex]5a - 10 = 120 + 2.5a[/tex]
[tex]2.5a = 130[/tex]
[tex]a = \frac{130}{2.5}[/tex]
[tex]a = 52[/tex]
The value of a is 52.
Which expression represents the surface area?
Answer:
2x + 1/2 sq. ft
Step-by-step explanation:
Surface area = 2(lw+wh+lh)
Given
length l = x ft
width w = 1/2 ft
height h = 1/2ft
Substitute
Surface area = 2(x(1/2)+(1/2)(1/2)+x(1/2))
Surface area = 2(x/2+1/4+x/2)
Surface area = 2(2x/2 + 1/4)
Surface area = 2(x + 1/4)
Surface area = 2x + 2/4
Surface area = 2x + 1/2 sq. ft
Answer:
i agree with c
Step-by-step explanation:
I need help with this worksheet.
Step-by-step explanation:
there are three phases here
in the first phase, the swimmer moved at a constant acceleration, at the second, there was no acceleration since there wasn't any decrease in speed, the third, it's actually deceleration, but it's still constant
Solve: 4x-19-x
what is the value if X? pls explain if u can
PLEASE HELP ANYONE JESUS CHRIST IVE BEEN ASKING FOR AN HOUR AND NO ONE ON HERE EVEN ACTUALLY HELPS SOMEONE PLS EXPLAIN YOUR ANSWER AND ACTUALLY HELP FOR ONCE
Answer:
d) 127,000 members
Step-by-step explanation:
A = Accrued Amount (principal + interest)
P = Principal Amount of members = 23,000 initial members
r = Annual Nominal Interest Rate as a decimal = .05
t = years left to increase (2020-1985 = ) 35 years
n = number of times amount compounds per time = 1 time/year
23,000 initial members( 1 + .05/1)^1*35
23,000*(1.05)^35 = 23,000*(5.516) = 126, 868 = around 127,000 members
A drum and bugle corps rents instruments to members. Each bugle
rents for $10 per month and each drum rents for $5 per month.
2. a. Find the monthly income Iif members rent 7 bugles and 9 drums.
Then find the monthly income if members rent 9 bugles and 7 drums.
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Evaluate 1/2y + 1/8 when y = 1/4
Answer:
1/4
Step-by-step explanation:
1/2*1/4+1/8=1/4
1/2*1/4=1/8
1/8+1/8=1/4
I need the answer for each blank
Answer:
Step-by-step explanation:
AC=BD
8x-4=6x+10
2x=14
x=7
AC=8x-4=52
BD=6x+10=52
Use the function below:
trig graph with points at 0, 1 and pi over 2, 5 and pi, 1 and 3 pi over 2, negative 3 and 2 pi, 1
What are the amplitude and midline?
Amplitude: 5; midline: y = 1
Amplitude: 5; midline: y = 0
Amplitude: 4; midline: y = 1
Amplitude: 4; midline: y = 0
Answer:wwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww
Step-by-step explanation:
amplitude 4 midline Y=1
fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
Answer:
amplitude 4 midline Y=1
Step-by-step explanation:
I am taking the algebra two segment two exam
What is the area of a rectangle measuring 4 inches by 3 1/4 inches
Answer:
13
Step-by-step explanation:
4 times 3 1/4 is 13
Answer:
13
Step-by-step explanation:
What value is an x worth
Answer:
The letter "x" is often used in algebra to mean a value that is not yet known. It is called a "variable" or sometimes an "unknown". In x + 2 = 7, x is a variable, but we can work out its value if we try! A variable doesn't have to be "x", it could be "y", "w" or any letter, name or symbol.
Step-by-step explanation:
the head of a nail is circular , as shown the head of this nail has a diameter of 6 millimeters what measurment is closet to the area
Answer:
Area of nail's head = 28.26 millimeter² (Approx.)
Step-by-step explanation:
Given:
Head of nail is circular
Diameter of nail's head = 6 millimeter
Find:
Area of nail's head
Computation:
Radius of nail's head = Diameter / 2
Radius of nail's head = 6 / 2
Radius of nail's head = 3 millimeter
Area of circle = πr²
Area of nail's head = πr²
Area of nail's head = (22/7)(3)²
Area of nail's head = (22/7)(9)
Area of nail's head = (3.14)(9)
Area of nail's head = 28.26 millimeter² (Approx.)
The area of Mammoth Cave NationalPark in Kentucky is about fifty-two thousand, eight hundred thirty and nineteen hundredths acres. Which shows this number of acres as a base ten numeral?
Answer:it’s the first one
Step-by-step explanation:
Find f(-9) when f(x) = |x|- 6.
Answer: f(x) = 3
Step-by-step explanation:
f(x) = |-9| - 6
f(x) = 9 - 6
f(x) = 3
Answer:
3
Step-by-step explanation:
F(x)= f(-9) meaning x is -9.
When -9 is in absolute value is negative it turns into positive because anytime it it absolute it will turn any number postitive. so the equation turns into 9-6=f(x) which is 3.
. A rectangular prism has a volume of 1374.28 inches. The prism is 9.4 inches wide and 17.2 inches long. What is the height of the prism?
Answer:
h = 8.5 inches
Step-by-step explanation:
Given that,
The volume of a rectangular prism = 1374.28 inches³
The prism is 9.4 inches wide and 17.2 inches long.
We need to find the height of the prism. We know that the formula for the volume of rectangular prism is given by :
V = lbh
Where
h is the height of the prism
So,
[tex]h=\dfrac{V}{lb}\\\\h=\dfrac{1374.28 }{9.4\times 17.2}\\\\h=8.5\ inches[/tex]
So, the height of the prism is equal to 8.5 inches.
triangle pqr is dilated by a scale factor of 2. the center of the dilation is (0,0). how does the image of triangle pqr relate to triangle pqr?
Answer:
The image is larger..........
1. David paints 3 rooms in 7 hours. At the same pace how long will it
take him to paint 16 rooms?
Proportions please answer with proportions thanks
Answer:
336
Step-by-step explanation:
Someone please help!!!
What is the volume of the container?
a committee of six is chosen from 12 men and 8 women. determine the number of ways of selecting the committee if
Answer: there is different types of selecting committe but most of the tuime is men before women
Step-by-step explanation:
i need help now please
Answer: 8 sq units
Step-by-step explanation:
4 sq units in middle, two triangles on sides are half of four, add two triangles to make whole 4
Please help!
1.) Find mED
2.) Find mEA
3.) Find mBDC