8. The price of a hoodie on sale increased from $25 to $45. By what percentage was the price of the hoodie increased?
Answer:
44.44%
Step-by-step explanation:
find the area of the figure below. use 3.14 for pie
Find the measure of the missing angles.
Answer:
c = 77
b = 77
Step-by-step explanation:
c and b are equal because they are vertically opposite.
In addition, they both form a supplementary pair with 103 (but not at the same time).
c + 103 = 180 c and 103 form a supplementary pair.
c = 180 - 103
c = 77
c = b = 77
PLEASE HELP ASAP!! find the zeros of the function, will mark!
Answer:
The zeros are (0,0) and (4,0)
Step-by-step explanation:
Those are the 2 points of the parabola that are on the "x" axis
(Hope this helped! Please ask and questions about this in the comments) :D
For the function
[tex]f(x)=x^2-2x-8\\[/tex]
Find the equation of the line of symmetry.
no links please and thank you! Please help ASAP! Will give Brainliest!
Answer:
x = 1
Step-by-step explanation:
For a quadratic function [tex]f(x)=ax^2+bx+c[/tex], the axis of symmetry is
[tex]x=-\frac{b}{2a}[/tex].
This comes from using part of the Quadratic Formula for finding zeros of the function:
[tex]x=\frac{-b \pm \sqrt{b^2-4ac}}{2a} = \frac{-b}{2a} \pm \frac{\sqrt{b^2-4ac}}{2a}[/tex]
See the -b/(2a) in the first term? That's the x-coordinate of the vertex (turning point) of the parabolic graph of the function. The axis of symmetry goes through the vertex.
60 POINTS PLS HELP!!
8 to the 3rd power over 8 rewritten using using a single positive exponent [tex]\frac{8^{3} }{8}[/tex]
Answer:
it is 8^2.
Step-by-step explanation:
8 ^ 3 = 8 x 8 x 8
8^3/8 = 8 x 8 x 8 / 8
you cross one 8 on the bottom and the top which leaves you with 8 x 8 or 8^2
Answer:
Solution given:
single positive exponent
[tex]\frac{8^{3} }{8}=8^{3-1}=8² [/tex]
single positive exponent is 8².
Note:
we have
[tex]\frac{x^{a}}{x^{b}}=x^{a-b}[/tex]
Which properties are best used prove a quadrilateral is a square?
a) Adjacent sides are perpendicular.
b) Diagonals are congruent.
c) Diagnonals are congruent and perpendicular.
d) Opposite sides are parallel and congruent.
Answer:
a, b, c, & d
Step-by-step explanation:
find the perimeter of the figure
Answer:
30 cm
Step-by-step explanation:
For perimeter you just need to add all the outer sides.
6+6.5+4+4+9.5
Evaluate that and you get 30.
That's your answer.
(Remember perimeter is the value AROUND the figure.)
What's the answers I'm insanely bad at reorganizing the y=mx+b equations (Possibly a brainliest if I learn a lot)
Answer:
x = 2, y = 0
Step-by-step explanation:
find y in terms of x:
8x - 4y = 16
4y = 8x - 16
y = 2x - 4
substitute y:
8x + 4y = 16
8x + 4(2x - 4) = 16
8x + 8x - 16 = 16
16x = 32
x = 2
find y:
8x + 4y = 16
16 + 4y = 16
y = 0
I need it fast/ no jokes or links please just the answer
Answer:
J
Step-by-step explanation:
Carmen uses 2/7 of a bag of flour to make 1/2 of a batch of her special homemade cookies. How many bags of flour does it take to make 3 batches of the cookies?
Answer:
12/7 or 1 5/7
Step-by-step explanation:
2/7=1/2, so 4/7=1. multiply 4 by three, since one times three equals three.
The graph below represents the path of a golf ball
Answer:
take a better picture
Step-by-step explanation:
Nobody can see that ;-;
Answer:
It is one of the 4 answers the question gives.
Step-by-step explanation:
HELPLSPLSPLPSLPSLPSL
Answer:
25.5
Step-by-step explanation:
first find the area od the rectangle than the triangle.
to find the area count the number of squares and use A=b*h
than do the same for the triangle using A=.5*b*h
15=3*5
10.5=.5*3*7
10.5+15=25.5
ngl i forgot whats 23+41
Answer:
64
Step-by-step explanation:
23
41
____
6 4
An auditorium has 28 seats
in the front row. Each row
behind the front has three
more seats than the row
directly in front of it.
How many seats are in the
eleventh row?
Answer:
11 x 3 = 33
28 x 11 = 308
308 + 33 = 341
[tex]\huge\boxed{Answer\341}
(341) is the answer
(PLEASE HELP)
what is the value of the x-coordinate of point p?
Answer:
x- coordinate of P is - 6
Step-by-step explanation:
The coordinates of any point in the form of an ordered pair (x, y )
Point P has coordinates P (- 6, 2 )
Answer:
- 6Step-by-step explanation:
Every point has two coordinates
the first is x-coordinate (we read it from X-axis)
the second is y-coordinate (we read it from Y-axis)
coordinates of poin P: (-6, 2)
so, the x-coordunate of point P is -6
people wear anklet in one leg or both leg? And which side left or right?
А
4 yards
B
С
15 yards
Find the area of AABC.
[?] yd ]
Enter
answer:
30 yd^2
step-by-step explanation:
in order to find the area of a triangle, we can use: A = 1/2 · b · hA = areab = baseh = heightplug in,
A = 1/2(b)(h)
A = 1/2(15)(4)
A = 1/2(60)
A = 30 yd^2
The following histogram shows the relative frequencies of the heights, recorded to the nearest inch, of a population of women. The mean of the population is 64.97 inches, and the standard deviation is 2.66 inches.
One woman from the population will be selected at random.
Question 3
(c) The histogram displays a discrete probability model for height. However, height is often considered a continuous variable that follows a normal model. Consider a normal model that uses the mean and standard deviation of the population of women as its parameters.
(i) Use the normal model and the relationship between area and relative frequency to find the probability that the randomly selected woman will have a height of at least 67 inches. Show your work.
(ii) Does your answer in part (c-i) match your answer in part (a) ? If not, give a reason for why the answers might be different.
Question 4
(d) Let the random variable H represent the height of a woman in the population. P(H<60) represents the probability of randomly selecting a woman with height less than 60 inches. Based on the information given, the probability can be found using either the discrete model or the normal model.
(i) Give an example of a probability of H that can be found using the discrete model but not the normal model. Explain why.
(ii) Give an example of a probability of H that can be found using the normal model but not the discrete model. Explain why.
Answer:
The following histogram shows the relative frequencies of the height recorded to the nearest inch of population of women the mean of the population is 64.97 inches and the standard deviation is 2.66 inches
(a) Based on the histogram, what is the probability that the selected woman will have a height of at least 67 inches? Show your work
Answer:
0.22268
Step-by-step explanation:
z-score is z = (x-μ)/σ,
where x is the raw score
μ is the population mean
σ is the population standard deviation.
(a) Based on the histogram, what is the probability that the selected woman will have a height of at least 67 inches? Show your work
At least means equal to or greater than 67 inches
z = 67 - 64.97/2.66
z = 0.76316
P-value from Z-Table:
P(x<67) = 0.77732
P(x>67) = 1 - P(x<67) = 0.22268
The probability that the selected woman will have a height of at least 67 inches is 0.22268
Step-by-step explanation:
A variable that can have any value between two given value is known as continuous variable, while a variable have only integer values is a discrete variable
The correct values are;
(c) (i) The probability of a height of at least 67 is 0.2263
(ii) The answers do not match due to the difference between the discrete and normal probability models
(d) (i) A probability that can be found using the discrete model but not the normal model is P (H = 60)
The probability of an exact value using the normal distribution is zero
(ii) A probability that can be found using the normal model but not the discrete model is P(H = 56)
The value is for height of 56 inches is not given on the histogram and therefore
The reason the above selections are correct is follows:
(c) (i) Using the normal probability model, we have;
The mean = 64.27 inches, the standard deviation = 2.66 inches
The z-score for the height of 67 inches is given as follows;
[tex]z = \mathbf{\dfrac{x - \mu}{\sigma}}[/tex]
Therefore, we have;
[tex]z = \dfrac{67 -64.97}{2.66} \approx 0.7632[/tex]
From the z-score table, the probability P(x < 67) = 0.7737
P(x > 67) = 1 - P(x < 67) = 1 - 0.7737 = 0.2263
The probability of a height of at least 67, by the normal model = 0.2263
(ii) Based on the histogram, we have;
The probability of at least 67 = The area of the bars equal to and larger than 67 = (0.11 + 0.07 + 0.05 + 0.02 + 0.01 + 0.01) × 1 = 0.27
The probability of a height of at least 67 = 0.27
The answer in part (c-i) and the answer in part (a) using the histogram do not match
The reason they do not match is that the normal model used in part c is
based on normal probability, which focuses on future events, using the
normal model which is a continuous probability model, while the value of
probability calculated using the histogram is based on the relative
frequency, which focuses on historical values, based on the discrete model
(d) (i) An example of a probability that can be found using the discrete model but not the normal model is the probability that the height of a woman is a discreet single value such as 65 inches
Therefore, using the discreet model, we have;
P(H = 65) = 0.18
Using the continuous model, we have;
P(H = 65) = 0
This is so because the continuous model is given by the area under the curve, which for a single value is infinitesimally small
(ii) An example of a probability that can be found using the normal model but not the discrete model is the probability of the height of a woman selected is 56 inches, P(H = 56) is not given in the histogram
Learn more about discrete and normal probability distributions here:
https://brainly.com/question/6476990
Samuel spends a winter day recording the temperature once every three hours for science class. At 9 am, the temperature was -14.7°F. Between 9am and noon, the temperature increased by 17.8°F. Between noon and 3pm, the temperature increased by 5.1°F. Between 3pm and 6pm, the temperature went down 14.5°F. What was the temperature at 6pm?
Answer:
The temperature at 9 am = -14.7°F
Between 9am and 12 pm = -14.7 + 17.8 = 3.1°F
Between 12pm and 3 pm = 3.1+5.1 = 8.2°
Between 3pm and 6 pm = 8.2-14.5 = -6.3°F
2) The length of the road is 600 miles. If 1 inch represents 30 miles, what is the
length of the road?
Answer:
Are you asking for it from miles to inches?
If so it would be 20
Step-by-step explanation:
600/30=20
Hope this helps <3
Answer:I think it would be 20 inches that is if your supposed to do 600÷30
Step-by-step explanation:uhh I hope this is right good luck tho
what is the area of the composite figure shown?
Answer:
under the figure 16in
Answers
Step-by-step explanation:
You add all of them
A university has 33,810 students. In a random sample of 270 students, 18 speak three or more languages. Predict the number of students at the university who speak three or more languages.
The expected number of students at the university who speak three or more languages is_____?
Answer:
Approximately 2254 people.
Step-by-step explanation:
(7x18+45) divided by 3x2
Answer:
114
Step-by-step explanation:
hope this helps!
Answer:
114
Step-by-step explanation:
7x18= 126
126+45=171
171 divided by 3=57
57x2= 141
9. The following illustration represents the height beam on the adult scale. Each small line represents 1/4 inch.
Each long line represents 1 inch. From the bottom to the break, readings are taken in an upward direction.
If a patient is taller than 50 inches, readings are taken in a downward direction and recorded directly at the
break in the scale.
Answer:
Helloooooooooo theree
Answer:
don't
Step-by-step explanation: it hard
please help me brailyist for correct answer
Answer:
photo is blurr bro
Step-by-step explanation:
i can't help with this photo
What is the area of a regular hexagon with sides that measure 10 feet and an
apothem that measures 8.66 feet?
Answer:
259.8 square feet
Step-by-step explanation:
What is the area of a regular hexagon with sides that measure 10 feet and an
apothem that measures 8.66 feet?
The formula to solve the above question is given as:
Area = (3√3 s²)/ 2 where
s is the length of a side of the regular hexagon
Area of this Hexagon is calculated as:
= (3√3 × 10²)/2
= 3√3 × 100/2
= 259.80762114 square feet
Approximately = 259.8 square feet
The area of the regular hexagon = 259.8 square feet
Thirty-seven states use wind as a source of energy.
>What fraction of the states does not use wind energy?
Answer:
0.26. This is the fraction of states that do not use wind energy.
Step-by-step explanation:
There are 50 states total. If 37 use wind energy, then 50 - 37, or 13, do not.
13/50 = 0.26. This is the fraction of states that do not use wind energy.
links will be reported
what is the area of the figure
Answer:
Step-by-step explanation:
The figure is a combination of a triangle and a rectangle
Area of rectangle = bh = 15(5) = 75
We have no way of finding the height of the triangle, unless there is some information that I don't see with regard to the figure.
Evaluate the following expression: (-5)(6) + (-6) ÷ (-3). Remember to show your work
Answer:
-28
Step-by-step explanation:
(-5)(6) + (-6) ÷ (-3) =
-30 + (-6) ÷ (-3) =
-30 + 2 =
-28
Hope that helps! :)
-Aphrodite
Answer: =-28
Step-by-step explanation: Hope this help :D