Answer:
16 hours
Step-by-step explanation:
first find the volume if the pool 12x8x4=384 then divide by how many meters per hour 384÷24=16
Write in slope form: y-7=4(x-1)
Answer:
y=4x+3
Step-by-step explanation:
y=mx+b
y-7=4(x-1)
y-7=4x-4
y=4x+7-4
y=4x+3
show that the points (1 ,7) ,(4, 2), (-1, -1) and (-4, 4) taken in order are the vertics of a square. Also find its area
Answer:
Step-by-step explanation:
A (1 ,7) , B(4, 2), C(-1, -1) and D(-4, 4)
Find the distance of sides using distance formula.
Distance = [tex]\sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}[/tex]
A (1 ,7) , B(4, 2)
[tex]AB = \sqrt{(4-1)^{2}+(2-7)^{2}}\\\\ =\sqrt{3^{2}+(-5)^{2}}\\\\ \\ = \sqrt{9+25}=\sqrt{34} units\\\\\\\\BC = \sqrt{(-1-4)^{2}+(-1-2)^{2}}\\\\ =\sqrt{(-5)^{2}+(-3)^{2}} = \sqrt{25+9}=\sqrt{34} units\\\\\\CD = \sqrt{(-4-[-1])^{2}+(4-[-1])^{2}}\\\\=\sqrt{(-4+1)^{2}+(4+1)^{2}}\\\\=\sqrt{(-3)^{2}+(5)^{2}}\\\\=\sqrt{9+25} = \sqrt{34} units\\\\\\AD = \sqrt{(-4-1)^{2}+(4-7)^{2}}\\\\=\sqrt{(-5)^{2}+(-3)^{2}} =\sqrt{25+9} = \sqrt{34} units[/tex]
AB = BC = CD = AD = √34 units. so , ABCD is a square.
Area of square = side * side
= √34 * √34
= 34 square units
A batch of 24 cupcakes requires 9 oz of flour Julio made 432 cupcakes for the bake sale how many pounds and ounces of flour did he use
Answer:
162
Step-by-step explanation:
432/24*9
162
Can someone please help me? I don’t understand this at all :/
A university interested in tracking its honors program believes that the proportion of graduates with a GPA of 3.00 or below is less than 0.16. In a sample of 200 graduates, 24 students have a GPA of 3.00 or below. The value of the test statistic and its associated p-value at the 5% significance level are _________, respectively.
Answer:
The value of the test statistic and its associated p-value at the 5% significance level are -1.54 and 0.9382, respectively.
Step-by-step explanation:
A university interested in tracking its honors program believes that the proportion of graduates with a GPA of 3.00 or below is less than 0.16.
This means that the null hypothesis is:
[tex]H_{0}: p \geq 0.16[/tex]
Testing this hypothesis, means that the alternate hypothesis is:
[tex]H_{a}: p > 0.16[/tex]
The test statistic is:
[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]
In which X is the sample mean, [tex]\mu[/tex] is the value tested at the null hypothesis, [tex]\sigma[/tex] is the standard deviation and n is the size of the sample.
0.16 is tested at the null hypothesis:
This means that [tex]\mu = 0.16, \sigma = \sqrt{0.16*0.84}[/tex]
In a sample of 200 graduates, 24 students have a GPA of 3.00 or below.
This means that [tex]n = 200, X = \frac{24}{200} = 0.12[/tex]
Value of the test statistic:
[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]
[tex]z = \frac{0.12 - 0.16}{\frac{\sqrt{0.16*0.84}}{\sqrt{200}}}[/tex]
[tex]z = -1.54[/tex]
Pvalue:
The pvalue is the probability of finding a sample mean above 0.12, which is 1 subtracted by the pvalue of z = -1.54.
Looking at the z-table, z = -1.54 has a pvalue of 0.0618
1 - 0.0618 = 0.9382
The value of the test statistic and its associated p-value at the 5% significance level are -1.54 and 0.9382, respectively.
57 POINTS!!! Pls help I really need it! You can zoom in if u have to. I will mark brainliest but will report if unrelated. Pls no links.
Answer:
153.94 yd²
Step-by-step explanation:
diameter is 14 so radius is 7
A = 7²π
A = 49π ≈ 153.94
what is the value of x.
Answer:
<U+<V +< W = 180°[sum of interior angle of a triangle is 180°]
3x+9° +30° + 24° = 180°
3x + 45° = 180°
3x = 180° -45° = 135°
x = 135/3
x = 45°
i need help with my maths work.
don't send me links I cant open links
A music store had a sale on tapes and CDs. Tapes were on sale for $5 each and CDs were on sale for $7. During the sale, 32 tapes and CDs were sold. The cash receipts from the sale of the tapes and CDs, before taxes, were $200. Let x represent the number of tapes and let y represent the number of CDs sold during the sale.
Answer:
Step-by-step explanation:
Hi there, check the image, For some reason they were telling it contained inappropriate words but I am not sure what are they referring to.
Answer:
x=12
y=20
Step-by-step explanation:
x+y=32
5x+7y=200
5x+5y=160
2y=40
y=20
x=12
If Candice has 1000 soaps and eats 5 how many apples will he have left?
Answer:
995
Step-by-step explanation:
Because you would have to subtract 5 from 1000 which is 995, hope this helped!
Pls help extra points
I will give the brainlist . Find the area of the trapezoid.
Answer:
88
Step-by-step explanation
Answer:
area = 88 m²
Step-by-step explanation:
area = ½(b1 + b2)h
area = ½(10 m + 6 m)(11 m)
area = 88 m²
Please Help Marking BRAINLIEST
Solve the following compound
inequality.
d – 4 > 3 or d – 4 < 1
Answer:
(-∞, 5 U 7 , ∞)
Step-by-step explanation:
Given the inequality expressions
d – 4 > 3 or d – 4 < 1
For d - 4 > 3
Add 4 to both sides
d-4 + 4 > 3 + 4
d > 7
7 < d
this means that d is greater than 7,
(7 , ∞)
For d - 4 < 1
Add 4 to both sides
d - 4 + 4 < 1 + 4
d < 5
This means d is less than 5
(-∞, 5)
The required solution is (-∞, 5 U 7 , ∞)
When Emily arrived home from school she spent eight minutes eating a snack then she spent 15 minutes playing with her dog and 32 minutes doing her chores finally Emily spent 45 minutes finishing her homework how long has Emily been home when she finished her homework
Answer:
1 hour and 40 minutes
Step-by-step explanation:
im high asfff
AB= Round your answer to the nearest hundredth. 3 3 65 B
Answer:
AB = 7.10
Step-by-step explanation:
Reference angle = 65°
Hypotenuse = AB = ?
Adjacent side length = BC = 3
Apply the trigonometric ratio CAH, to find AB.
Cos 65 = Adj/Hyp
Cos 65 = 3/AB
AB*Cos 65 = 3
AB = 3/Cos 65
AB = 7.09860475
AB = 7.10 (nearest hundredth)
color 1/2 of this shape
Answer:1/2
Step-by-step explanation:
What is the circumference of the circle?
Answer:
The circumference of a circle is the distance around the outside of the circle
Hope It Helps :)
Step-by-step explanation:
Answer:
Circumference of the circle or perimeter of the circle is the measurement of the boundary of the circle. Whereas the area of circle defines the region occupied by it. If we open a circle and make a straight line out of it, then its length is the circumference. It is usually measured in units, such as cm or unit m.
When we use the formula to calculate the circumference of the circle, then the radius of the circle is taken into account. Hence, we need to know the value of the radius or the diameter to evaluate the perimeter of the circle.
Circumference of a Circle Formula
The Circumference (or) perimeter of a circle = 2πR
where,
R is the radius of the circle
π is the mathematical constant with an approximate (up to two decimal points) value of 3.14
Again,
Pi (π) is a special mathematical constant; it is the ratio of circumference to diameter of any circle.
where C = π D
C is the circumference of the circle
D is the diameter of the circle
For example: If the radius of the circle is 4cm then find its circumference.
Given: Radius = 4cm
Circumference = 2πr
= 2 x 3.14 x 4
= 25.12 cm
1 pts
Question 13
If 4 meters is about 156 inches, which proportion could be used to find how many
inches are in 13 meters?
Suppose a group of research proposals was evaluated by a panel of experts to decide whether or not they were worthy of funding. When these same proposals were submitted to a second independent panel of experts, the decision to fund was reversed in 52 % of the cases. If the probability that a proposal is judged worthy of funding by the first panel is 0.27, what is the probability that a worthy proposal is disapproved by both panels
Answer:
0.3504 = 35.04% probability that a worthy proposal is disapproved by both panels
Step-by-step explanation:
We have that:
0.27 = 27% of the time, the proposal is judged worthy of funding by the first panel. So 100 - 27 = 73% probability of being disapproved.
52% of the time, the independent panel reverses the decision. So if the first panel disapproves the funding, 52% probability the second approves the funding and 100 - 52 = 48% probability it does not.
What is the probability that a worthy proposal is disapproved by both panels?
48% of 73%. So
0.48*0.73 = 0.3504
0.3504 = 35.04% probability that a worthy proposal is disapproved by both panels
can someone help please
9514 1404 393
Answer:
A, D
Step-by-step explanation:
The figure looks symmetrical, but their is no given information indicating it actually is symmetrical. Thus we can't make any statements about the segment lengths. Nor is there any indication that any of the arc lengths are identical.
If we rule out statements about segments and arcs, that only leaves statements about angles. As it happens both of those are true: inscribed angles that intercept the same arc are congruent.
The true statements are ...
A: ∠CAD≅∠CBD
D: ∠ACB≅∠ADB
Find the measure of 4
WILL GIVE 30 POINTS TO WHOEVER SOLVES THIS
Answer:
142 square meters
Step-by-step explanation:
Big rectangle Area = LxW = 18 x9= 162
White triangle Area A = (ab)/2 legs 5 and 8 ( 18-10= 8 )
= (5x8)/ 2 = 20
Subtract white triangle from green rectangle
162-20 = 142
OR
area left rectangle LxW 10x9 = 90
area right rectangle LxW 4x8 =32
area green triangle ( sides 5 an8 ) (ab)/2 = 20
90+32+20 = 142
A store by 17 sweaters for $255 and sells them for $578 how much profit does the store make per sweater.....
IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. What percentage of people have an IQ score between 69 and 137, to the nearest tenth?
Answer:97.4
Step-by-step explanation:
use calculator
Lower: 69
Upper: 137
Mean:100
Standard deviation: 15
HELP ME PLEASE I NEED TO PASS THIS CLASS
Answer: I could be wrong but it's probably 3.
Step-by-step explanation: Once there's x in the 3 sides of angles you subtract. 73 minus 3 = 3 degrees. If I'm wrong sorry about that. I will try to improve. :)
Answer:
37°
Step-by-step explanation:
70°+73°+x°=180°
143°+x°=180°
x°=180°-143°
x°=37°
Please help i would really appreciate it!
For the functions f(x) = -5(3/4)x what is the y-intercept
please help
Answer:
(0,0)
Step-by-step explanation:
the y and x intercept are 0
10.
A, B and C are the points (3, 4, (7,3) and (-2, 1) respectively. Obtain the
equation of the median through B of triangle ABC.
Answer:
[tex]y=\frac{1}{13} x+\frac{32}{13}.[/tex]
Step-by-step explanation:
1. the midpoint of the side AC is:
[tex]D:(\frac{3-2}{2};\frac{4+1}{2})=(0.5;2.5).[/tex]
2. if the coordinates of the points B and D are (7;3) and (0.5;2.5) respectively, then it is possible to make up the required equation of the median BD:
[tex]\frac{x-7}{7-0.5}=\frac{y-3}{3-2.5}; \ \frac{x-7}{13}=\frac{y-3}{1}[/tex]
or
[tex]y=\frac{1}{13} x+\frac{32}{13}[/tex]
goods bought for $800 had to be sold off at a loss of 8% the selling price was
Answer:
8% of 800 is 64
800-64=736
Step-by-step explanation:
Find the slope of the line that passes through the given two points (-3, 3) and (-9, 5)
Answer:
-1/3
Step-by-step explanation:
5-3/-9--3
2/-9--3
2/-9+3
2/-6
-2/6
-1/3
Answer:
-1/3
Step-by-step explanation:
3-5/-3-(9)
-2/6
-1/3
This week Jose played guitar for 3/4 of an hour on Tuesday, an hour and a half on Thursday, and 2.3 hours on Saturday. If Jose plays guitar for the same amount of time next week, how many hours will he have practiced over these 6 days?
Answer:
Jose will have played the guitar for 9.1 hours during those 6 days.
Step-by-step explanation:
Given that this week Jose played guitar for 3/4 of an hour on Tuesday, an hour and a half on Thursday, and 2.3 hours on Saturday, to determine, if Jose plays guitar for the same amount of time next week, how many hours will he have practiced over these 6 days, the following calculation must be performed:
3/4 = 0.75
1/2 = 0.5
(0.75 + 1.5 + 2.3) x 2 = X
4.55 x 2 = X
9.10 = X
Therefore, Jose will have played the guitar for 9.1 hours during those 6 days.