Answer:
78x98 7644
34x65 2210
45x65 2925
23x65 1495
11x98 1078
1029x75674 77868546
Helppppp
a. 90
b. 85
c. 75
d. 115
Answer:
85is the correct answer
A company that makes robotic vacuums claims that their newest model of vacuum lasts, on average, two hours when starting on a full charge. To investigate this claim, a consumer group purchases a random sample of five vacuums of this model. They charge each unit fully and then measure the amount of time each unit runs. Here are the data (in hours): 2.2, 1.85, 2.15, 1.95, and 1.90. They would like to know if the data provide convincing evidence that the true mean run time differs from two hours. The consumer group plans to test the hypotheses H0: μ = 2 versus Ha: μ ≠ 2, where μ = the true mean run time for all vacuums of this model. Are the conditions for inference met?
No, the random condition is not met.
No, the 10% condition is not met.
No, the Normal/large sample condition is not met.
Yes, all conditions for inference are met.
Answer:
2 one is the right one
Step-by-step explanation:
Find the angle of x please
Answer:
i believe the answer is x= 85
The diameter of a circle is 50.267 feet. Find the circumference of the circle and use 3.14 for π. Round your answer to the nearest whole number.
The circumference is
feet.
Answer:
C=2πr=2·π·25.13≈157.9153
Step-by-step explanation:
The green parallelogram is a dilation of the black parallelogram. What is the scale factor of the dilation?
A) 1/3
B) 1/2
C) 2
D) 3
=============================================================
Explanation:
"The green parallelogram is a dilation of the black parallelogram"
This tells us that the preimage is the black parallelogram and the image is the green one.
In short, the mapping is [tex]\text{black} \to \text{green}[/tex]
The image is smaller than the preimage (green is smaller than black), indicating the scale factor is some value of k such that 0 < k < 1. We can rule out choices C and D because of this.
--------------------
Measuring along the top, we can see that the black parallelogram goes from x = -6 to x = 8. Check out the image shown below where I've marked your given diagram, adding on helpful lines to show this going on.
The number-line distance from x = -6 to x = 8 is 14 units, so the top side of the black parallelogram is 14 units long.
The corresponding top side of the green parallelogram is 7 units long (because it spans from x = -3 and x = 4; as shown in blue in the figure below).
Divide the image length over its corresponding preimage length to get the scale factor.
scale factor = (image length)/(preimage length)
scale factor = 7/14
scale factor = 1/2
which points to choice B as our final answer.
Answer:
THE ANSWER IS C)2
Step-by-step explanation:
I GOT IT WRONG CUZ THIS DUDE ABOVE MEEE
(im big mad)
What is the slope of the line that passes through (12, -18) and (11, 12)?
QUICK!!
Answer:
slope= m=-30 hope that helps
Solve 1/2+(3/4x4/9)=
Answer: -1/6
Step-by-step explanation:
Can someone Simplify this.
(2a+5)^2
Answer:
[tex]4a^{2} + 20a+25[/tex]
Step-by-step explanation:
[tex]( 2a+ 5 ) ( 2a + 5 )[/tex]
[tex]2 a ( 2 a + 5 ) + 5 ( 2 a + 5 )[/tex]
[tex]4 a^{2} + 1 0 a + 5 ( 2 a + 5 )[/tex]
[tex]4a^{2} + 1 0 a + 1 0 a + 2 5[/tex]
[tex]4a^{2} + 20a+25[/tex]
Answer:
[tex]4a^{2}[/tex]+20a+25
Step-by-step explanation:
Need help ASAP PLEASE DUE SOON!!!
Answer:
11
Step-by-step explanation:
all u need to do is to cube root 1331, because it is a cube. hope i helped.
In what ratio must 40m3 be decreased to become 24m3?
Answer:
40m3 must be decreased by 40% to become 24m3.
Step-by-step explanation:
To determine in what ratio must 40m3 be decreased to become 24m3, the following calculation must be performed:
40 = 100
24 = X
24 x 100/40 = X
2400/40 = X
60 = X
100 - 60 = 40
Therefore, 40m3 must be decreased by 40% to become 24m3.
If 5 inches represent 12 miles, how many inches represent 108 miles?
In direct variation y = kx. What is the value of k if y = 20 and x = 4 ?
The question and answers are there
PLEASE HELP I WILL MARK YOU BRAINLIEST
(1)Mai had $14.50. She spent $4.35 at the snack bar and $5.25 at the arcade. What is the exact amount of money Mai has left?
(2)Kristina rides her bicycle 384.25 miles over 29 weeks too and from her job. How many miles does she ride each week to and from her job if she rides the same amount each week?
Answer:
question 1 she has 4.90 dollars left question 2 she rides 13.25 miles every week
What is the value of x?
Answer:
x=5
Step-by-step explanation:
move the terms 10x-9=9x-4
collect like terms 10x-9x=-4+9 and calcate
x=5
The height (in feet) of objects launched from a
pirate ship's rocket launcher can be modeled by
the equation h = -16t? + 180t + 18 where t is the
time in seconds.
*Find the maximum height a launched item
could reach. (Round to two decimal places).
*After how many seconds will an item hit the
water after being launched? (Round to nearest
whole number).
Please someone help me
Answer:
i) 524.25feet
ii) 11secs
Step-by-step explanation:
1) Given the height of the rocket modelled by the equation
h = -16t² + 180t + 18 where
t is in seconds
At the maximum height, the velocity of the object is zero.
v(t) = dh/dt = 0
dt/dt = -32t + 180
0 = -32t + 180
32t = 180
t = 180/32
t = 5.625secs
Get the maximum height
h = -16t² + 180t + 18
h = -16(5.625)² + 180(5.625) + 18
h = -16(31.640625)+ 180(5.625) + 18
h = -506.25+1,012.5+18
h = 524.25feet
Hence the maximum height a launched item could reach is 524.25feet
ii) The item will hit the water at h = 0
Substitute inti the expression
h = -16t² + 180t + 18
0 = -16t² + 180t + 18
16t² - 180t - 18 = 0
Divide through by 2
8t² - 90t - 9 = 0
t = 90±√90²-4(8)(-9)/2(8)
t = 90±√8100+288/16
t = 90±√8,388/16
t = 90±91.586/16
t = 90+91.586/16
t = 181.586/16
t = 11.35sec
Hence the item hit the water after 11secs (to nearest whole number)
3,-5 reflection over the x-axis
Answer:
It would be (3,5)
Step-by-step explanation:
hope this helps
PLEASE HELP WILL MARK BRAINLY
(ATTACHED)
Answer:
$3.60
282.6
80
576 in
175
45
3.12
31.7
10
36
9
36
-3,√3,3,3² and √3
1/4
√64
9
1.6
4x
1
3
Step-by-step explanation:
24*.15=3.6
200=2.5*speed
speed=80
1:1/12
x:48
576 in
35=.2*x
x=175
30*1.5=45
48*.065=3.12
.5*(2π*5)=15.7
15.7+6+10=31.7
24²+a²=26²
a²=100
a=10
Pretty sure it's just 36
Volume of a cylinder :πr²*h
10*3²*π=282.6
8:12
6:x
x=9
2x+3x=90
x=18
2*18=36
-3,√3,3,3²
1/2*1/2=1/4
√64=8
3x-12+x=24 ,
4x=36
x=9
12.5w=20
w=1.6
2xy*6x²=12x³y
12x³y/(3x²y)=4x
3²+(-2)³
9-8=1
-18-6= -24
-2-2-4= -8
-24/-8=3
neiwiendnjcisnwbdjxisjbshdixjsnshdixjnsbskxknxx
1/2⋅8 to the power of two+3(7)=
Answer:
The answer for this equation is 53
Answer:
53
Step-by-step explanation:
I'm not sure you worded I weird to me
What is the slope line?
Answer:
slope or gradient of a line is a number that describes both the direction and the steepness of the line.
A group of friends wants to go to the amusement park. They have no more
than $110 to spend on parking and admission. Parking is $19.25, and tickets
cost $30.25 per person, including tax. Write and solve an inequality which
can be used to determine x, the number of people who can go to the
amusement park.
Answer:
if the number of the friends is x...
19.25+30.25x ≤ 110
x ≤ 3
An adult has a total of about 21.4 square feet (ft2) of skin. Use the fact that 1 m is approximately equal to 3.281 feet to convert this measurement to square meters (m2).
Answer:
1.99m²
Step-by-step explanation:
From the above question
1 ft = 3.281 m
1 ft² = (3.281 m)²
Converting 21.4 ft² to m²
1 ft² = (3.281 m)²
21.4 ft² = xm²
x m² = 21.4 ft²/ (3.281 m)²
x m² = 1.9879310292 m²
Approximately :
21.4 ft² = 1.99m²
36x+27y in factored form
2. What will be the circumference of a circular table having diameter x
meter? Find it.
Answer:
im just doingthis for points
Step-by-step explanation:
Solve for n
2n +4 = 3.4
Answer:
n= -0.3
Step-by-step explanation:
What are the volume of a rectangular pyramid with a length of 39 m, a width of 15 m, and a height of 16 m?
Answer:
3120 m³
Step-by-step explanation:
Is the point (3, −5) within the shaded region?
The answer must be true or false
Answer:
its false
Step-by-step explanation:
what must be the length of a ladder that mr. rizzo can use if he wishes to place the bottom of the ladder five feet from a wall and he wishes to reach a window that is 15 feet above the ground? use the pythagorean theorem to solve pls
Answer:
jgdnh svfbbth1f we ra r ti
ASAP someone please help. Given the following angle measurements for a triangle, find the remaining angle.
a. 53, 58
b. 28, 47
c. 65, 25
Answer:
c
Step-by-step explanation: