Answer:
The appropriate null hypothesis is [tex]H_0: \mu = 1250[/tex]
The appropriate alternate hypothesis is [tex]H_a: \mu < 1250[/tex]
Step-by-step explanation:
At the null hypothesis, we test if the mean area is the advertised area of 1250 square feet, that is:
[tex]H_0: \mu = 1250[/tex]
A tenant group thinks that the apartments are smaller than advertised.
Smaller, thus, at the alternate hypothesis, we test if the mean area is less than the advertised area of 1250 square feet, that is:
[tex]H_a: \mu < 1250[/tex]
Need help
Four students answered the problem at the top of the table. The table shows their answers. Which student gave the correct answer?
7a² - 4 if a = 4
Student Answer
Lucia 110
Terry 108
Heath 24
Robin 22
Robin B) Heath C) Terry D) Lucia
and question 2
At Claremont Junior High, 72 out of 120 students usually ride the bus. If there are 500 students, how many should the bus drivers be prepared to bring to school?
Answer:
Terry 108
300
Step-by-step explanation:
7a² - 4 if a = 4
7(4)² - 4
7(16) - 4
112 - 4
108
Terry 108
----------------------------
72/120 * 500
300
solve 2x+5 = 2x-3 for me
- thanks
Answer:
2x+5=2x-3
2x-2x=-3-5
0=-8
Step-by-step explanation:
Find the value of x,$3$3)/7:):7):7:
(3x - 5) + 2(5x - 10) + 2(6x + 25) = 540
3x - 5 + 10x - 20 + 12x + 50 = 540
25x + 25 = 540
25x = 540 - 25
25x = 515
x = 515 / 25
x = 20.6
Answer:
[tex]\huge\boxed{\sf x = 20.6}[/tex]
Step-by-step explanation:
We know that the sum of interior angles of a pentagon is:
=> (n-2) *180
Were n is the no. of sides
=> (5-2)*180
=> 3 * 180
=> 540
Hence, The sum of interior angles of a pentagon is 540.
So,
=> 3x - 5 + 6x + 25 + 5x - 10 + 5x - 10 + 6x + 25 = 540
Combining like terms
=> 3x + 6x + 6x + 5x + 5x - 5 + 25 + 25 - 10 - 10 = 540
=> 25x + 25 = 540
=> 25x = 540 - 25
=> 25x = 515
Divide both sides by 25
=> x = 515 / 25
=> x = 20.6
[tex]\rule[225]{225}{2}[/tex]
Hope this helped!
~AH1807what is x to the 2nd power?
Answer:
x2 or x square
Step-by-step explanation:
hope it helps
An architect makes a scale drawing of a building. The scale used is 1 cm represents 20 m. Calculate the actual width of the building if the width on scale drawing is 24.5 cm
Answer: 490 m
Step-by-step explanation:
Matthew has 3 1/4 gallons of lemonade. He sells 4/8 of the lemonade. How many gallons of lemonade does Matthew have left?
Answer:
He would have 11/4 gallons of lemonade or 2 3/4
Step-by-step explanation:
A bag contains 25 red cubes, 15 green cubes, 12 blue cubes, and 8 yellow cubes. The cube is picked at random from the bag. Find each probability as a fraction is lowest terms
Answer:
25/70=red cubes
15/70=green cubes
12/70=blue cubes
8/70=yellow cubes
Step-by-step explanation:
you have to add up all the cubes together and get 70 so you have to see the possibility of getting each cube from the bag.
sorry if you get this wrong
Answer:
Step-by-step explanation: Alright so first add up how many cubes there are in total - 25 + 15 + 12+ 8 = 60. Then, each color cube is its number out of 60. So, for example, for 25 red cubes, it would be 25/60 as a fraction and that’s the probability as a fraction for the red cubes. So:
red = 25/60
green = 15/60
blue = 12/60
yellow = 8/60
then simply the fractions.
25/60 —> 5/12
15/60 —> 1/4
12/60 —> 1/5
8/60 —> 2/15
I hope that helped!
Find the area of the bolded sector in the circle below.
Leave your answer in terms of pi. Just type what number should be multiplied to the pi)
area sector = ?? π
Answer:
Area of the sector formula:
A = πr²(θ/360)We have:
θ = 120r = 12 miSubstitute values and find A:
A = π(12²)(120/360) = 144π/3 = 48πFind the median and mean of the data set below:
14, 6, 30, 23, 4,4
Answer:
Median is 10 and mean is 13.5
Para contratar uma assinatura, o cliente deve pagar uma entrada de R$24,00 e mais 12 parcelas no valor da assinatura contratada. Escreva uma expressão algébrica para representar o valor P a ser pago por uma assinatura. Quanto pagará um cliente que contratar a assinatura que possuí parcelas de R$17,00?
Answer:
Total amount pay for subscription = $228
Step-by-step explanation:
Given:
Down payment of subscription = $24
Number of installments payment = 12
Amount of each installment = $17
Find:
Total amount pay for subscription
Computation:
Assume;
Total amount pay for subscription = P
So,
Total amount pay for subscription = Down payment of subscription + (Number of installments payment)(Amount of each installment)
P = 24 + 12(17)
P = 24 + 204
P = 228
Total amount pay for subscription = $228
a tennis ball is hit with a vertical velocity of 40ft/s from an initial height of 7ft. In how many seconds will the ball hit the ground? Round your answer to the nearest tenth, if necessary. PLEASE SHOW ANY WORK IF POSSIBLE!!!!! THANK YOU SO MUCH TO WHOEVER ANSWERS THIS!!!!
Answer:
friend me on here and imma send you the link Step-by-step explanation:
Find the value of the variable. If your answer is not an integer, leave it in simplest radical form.
92√
9 square root of 2
93√
9 square root of 3
93√2
the fraction with numerator 9 square root of 3 and denominator 2
92√2
Priscilla can make 4 bracelets in 13 minutes. At this rate, how many bracelets can she make in 26 minutes?
Answer:
8
Step-by-step explanation:
To find the answer, multiply 4 and 2 together, since 13 is 2 times less than 26.
----------------------------------------------------------------------------------------------------------------
Let's double check,
26 ÷ 13 = 2
so,
4 × 2 = 8
----------------------------------------------------------------------------------------------------------------
Have a good day :)
The city of Redmond is planning to build a new park by enlarging the current park by a scale factor of 3. The current park has an area of 30,125 yd².
The area of the new park is ___ yd².
Answer: I think it’s Area of the new park is 602000 yd
Answer:
90,375 yd^2
Step-by-step explanation:
A scale factor of three means that the park will be 3 times larger than the original, they may use fancy words, but it’s that simple.
30,125 * 3 = 90,375 yd^2
Se deposita 4000 soles a una tasa de interés del 0,8% quincenas .¿Que interes producirá en cinco quincenas?
Answer:
Interes= 162,58
Step-by-step explanation:
Dada la siguiente información:
Se deposita 4000 soles a una tasa de interés del 0,8% quincenas
Primero, debemos calcular el valor final de la inversión:
VF= [VP*( 1 + i)^n]
VF= 4.000*(1,008^5)
VF= 4.162,58
Para calcular el interés ganado en 5 quincenas, debemos usar la siguiente formula:
Interes= 4.162,58 - 4.000
Interes= 162,58
PLSS HELP ASAP I NEED RN
which quadratic equation has 2 and -3 as its roots ?
Answer:
alfa = 2
beeta = -3
product of zeros = 2x-3= -6
sum of zeros = 2+[-3] = -1
POLYNIMIAL = k[x²-[sum]+product]
=k[ x²-[-1] +[-6]]
= k[ x²+1 -6]
= x²-5
hence , the quadratic equation is x²-5
HERES UR ANS .
HOPE IT DOES HELP U
IF SO PLZ MARK THE BRAINLIESTT !!!!\
Help me please I need this like rnnnnn
The area of a square tile is the same as the area of a rectangle tile that is 18 inches long and 8 inches wide.
What is the side length of the square tile?
Please answer seriously it’s important.
Step-by-step explanation:
Brother Answer is 12 inches
On a number line, the distance between x and 8 is 2 units.
Which equation can be used to determine the possible values for x?
2−|x|=8
|8−x|=2
|2−x|=8
8−|x|=2
Answer:
|8−x|=2
Step-by-step explanation:
because you have to subtract them together to see how far apart they are
The stem-and-leaf plot shows the number of broken crayons in each crayon box at a preschool. What is the greatest number of broken crayons in a box? A 7 crayons B 47 crayons c 477 crayons d 1469 crayons
Answer:
47
Step-by-step explanation:
Values on a stem and leaf plot can be obtained by using the key :
Stem | leaf
With each value in the stem representing the first digit and the value in the leaf denoting the second digit.
The highest stem value here is 4 and the highest leaf value is 7.
Hence, the highest number of broken crayon is 47.
What is the opposite operation of squaring a number?
A Taking the cube root
B Taking the square root
C Dividing by the number
D Multiplying by the number
Factor completely 2n + 13n + 15
Hey there!
“Factor completely 2n + 13n + 15”
2n + 13n + 15
COMBINE your LIKE TERMS
(2n + 13n) + (15)
2n + 13n = 15n
15 = 15
Answer: 15n + 15
Good luck on your assignment and enjoy your day!
~Amphitrite1040:)
Answer:
15(n + 1)
Step-by-step explanation:
Given
2n + 13n + 15 ← collect like terms
= 15n + 15 ← factor out 15 from each term
= 15(n + 1) ← in factored form
can someone pls pls help me ?
Answer:
a=4
Step-by-step explanation:
13x2=26
34-26=8
8/2=4
What is the value of y in the diagram?
х
56°
у
29°
Answer:
2y+29+29 =360
2y +58 =360
2y. =360-58
2y. =302
y. =151
HELP ASAP
a slice is made parallel to the base of a right rectangular pyramid, as shown.
What is the area of the resulting two-dimensional cross-section?
Enter your answer in the box.
Answer:
27.5cm^2
Step-by-step explanation:
you can cut the triangle to make two right triangles
so 11 is the height and the width is 2.5 since your cutting the triangle in half
so 11x2.5=27.5 since its a right triangle you have to divide by two 27.5/2=13.75
that's the answer for one of the triangles now multiply it by two since you need the two right triangle to make the other triangle so the answer is 27.5
PLs, help me with this math question
Answer
for a area of 10 i would do rays like 2 by 5
Step-by-step explanation:
it would be like 5 over and 2 down
Helpppppppppp please
Answer:
1. tanQ = 16/12 = 1.3
tanR = 12/16 =0.75
2. tanN = 7/13
arctan(tanN) = arctan(7/13)
N = arctan(7/13)
N = 28.3 degrees
My bill at the hair salon came to $110. If I tip my stylist 20% what will the total bill be
Answer:
I think it would be 132
Step-by-step explanation:
20% of 110=22 (22+110)=132
Now say you invest the $6,500 and the highest interest rate you can find is 2.5% compounded annually, but you would have to leave the investment in the account for a minimum of 5 years. If you decide to wait 5 years to buy the car, how much more money will you have to save to buy a car at the $8,000 price?
Answer:
$648.5
Step-by-step explanation:
Given data
Principal= $6,500
Rate= 2.5%
Time= 5 years
The compound interest formula is given as
A= P(1+r)^t
substitute
A= 6500(1+0.025)^5
A= 6500(1.025)^5
A=6500*1.131
A=$7351.5
After 5 years the money in the account will be $7351.5
Now to buy a car of $8,000
The added amount will be
=$8,000-$7351.5
=$648.5