Answer:
4x^2−4x+7
Step-by-step explanation:
Let's simplify step-by-step.
4x^2−10x+9+6x−2
=4x^2+−10x+9+6x+−2
Combine Like Terms:
=4x^2+−10x+9+6x+−2
=(4x^2)+(−10x+6x)+(9+−2)
=4x^2+−4x+7
Answer:
=4x^2−4x+7
Answer:
A
Step-by-step explanation:
which one come first y axis or x axis
Answer:
x axis
Step-by-step explanation:
just remember it by saying x comes first then y
Answer:
x axis comes first.
Step-by-step explanation:
When pinpointing a point, find the x axis first, and then the y (x , y).
Given the information below, write the conclusion in context. 1. H0 : The proportion of defective batteries = 0.02 2. HA : The proportion of defective batteries < 0.02 3. Z-score of observed sample = −1.23
Answer:
[tex] z = -1.23[/tex]
And we can calculate the p value with the following probability taking in count the alternative hypothesis:
[tex] p_v = P(z<-1.23) = 0.1093[/tex]
And for this case using a significance level of [tex]\alpha=0.05 ,0.1[/tex] we see that the p value is larger than the significance level so then we can conclude that we FAIL to reject the null hypothesis and we don't have enough evidence to conclude that the true proportion is less than 0.02
Step-by-step explanation:
For this case we want to test the following system of hypothesis:
Null hypothesis: [tex]p =0.02[/tex]
Alternative hypothesis: [tex] p < 0.02[/tex]
The statistic for this case is given by:
[tex]z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}}[/tex] (1)
And for this case we know that the statistic is given by:
[tex] z = -1.23[/tex]
And we can calculate the p value with the following probability taking in count the alternative hypothesis:
[tex] p_v = P(z<-1.23) = 0.1093[/tex]
And for this case using a significance level of [tex]\alpha=0.05 ,0.1[/tex] we see that the p value is larger than the significance level so then we can conclude that we FAIL to reject the null hypothesis and we don't have enough evidence to conclude that the true proportion is less than 0.02
Evaluate the expression when x= -3.
x² – 7x+6
Answer:
-6
Step-by-step explanation:
[tex]3^{2}[/tex] = -3 × -3
-3 × -3 = 9
7 × -3 =-21
9 - 21 +6 = -6
Answer:
The correct answer is 36!
Step-by-step explanation:
Point B is located at (4, 12). It is dilated
by a scale factor of 1/2 what is the new order pair for the dilated image .
Answer:
(2,6)
Step-by-step explanation:
All you do is halve the point (4,12) so it is half of 4 (2) and half of 12 (6), making the new point (2,6)
help plsssssssssssssssssssssssssssssssss again 3
Answer:
200 minutes
Step-by-step explanation:
In order to find the range, you have to subtract the greatest number to the lowest number. In this case, 400 is the smallest number, and 600 is the greatest number. 600-400 is 200 minutes.
A number cube is rolled and a marble is selected at random from a bag containing 2 green marbles, 2 yellow marbles, 2 red marbles, 1 purple marble, and 1 blue marble. Find each probability. Show your work. 1. P(1 and red) 2. P(3 and purple) 3. P(even and yellow) 4. P(odd and not green)
Answer:
1)
1 /6 × 1/8
1/6×8
1/48
2)
3/6 ×1/8
2×1/8
1/4
3)
3/6 ×1/8
2×1/8
1/4
4)
3/6×4/8
2÷2
1
WILL GIVE BRAINLEST!! We roll a fair 6-sided die 5 times. What is the probability that we get an odd number in exactly 4 of the 5 rolls?
PLZ HELP ME FIGURE THIS OUT
Answer:
f=2
Step-by-step explanation:
3=9-3f
3-9=-3f
-6=-3f
2=f
f=2
What is the domain of the function y = 2 e Superscript x graphed below? On a coordinate plane, a curve starts in quadrant 2 and increases into quadrant 1. It crosses the y-axis at (0, 2). all real numbers greater than 2 all positive real numbers all negative real numbers all real numbers
Answer:
The answer is all real numbers.
Step-by-step explanation:
I just took it and got a 100 on EDG 2020.
Answer:
It's D - all real numbers
Step-by-step explanation:
on edge 2021
What is the equation of the line through (2, -4) and (0, 4)
Answer:
Step-by-step explanation:
(4+4)/(0-2)= 8/-2 = -4
y + 4 = -4(x - 2)
y + 4 = -4x + 8
y = -4x + 4
Answer:
y = -4x + 4
Step-by-step explanation:
took this on A P E X, hope it helps
Find the equation of the axis of symmetry for the parabola y=x^2-5x+1/2
Answer:
The axis of symmetry is x = 5/2.
Step-by-step explanation: -b -(-5)
The formula for the axis of symmetry is x = -------- = --------- = 5/2
2a 2(1)
When trying to find solutions to the system of equations x+y=3 2x+2y=6 you take several correct steps that lead to the expression 0=0. Which statement is true?
Answer:
They are the same equations. (I don't know what you mean by "true.")
Step-by-step explanation:
If you divide 2x + 2y = 6 by 2, it turns into x + y = 3. This means that the graphs of the lines are the same, or there are infinite solutions.
I am really sorry if this is wrong because I am not really sure what you meant by "Which statement is true?"
A swimming pool has 30 gallons of water in it. Water is added to the pool at a rate of 5 gallons per second. Which equation models the relationship between W, the number of gallons of water, and t, the number of seconds water is being added to the swimming pool?
Answer:
W= 30+5t
Step-by-step explanation:
Answer:
w=30 + 5t
Step-by-step explanation:
The function f(x)=200/x + 10 models the cost per student of a field trip when x students go on the trip. How is the parent function f(x)=1/x transformed to create the function f(x)=200/x + 10
Answer:
Step-by-step explanation:
We need to explain the transformations applied to 1/x to get f(x). We get f by following the following steps.
1. Multiply 1/x by 200 to get the function 200/x. This represents taking the graph of 1/x and expanding it vertically by a factor of 200.
2. Sum 10 units to 200/x. This represents a vertical shift of 10 units to the graph of 200/x.
What is the range for the number of cars, new and used, that were sold from July to December?
Answer:
75
Step-by-step explanation:
87-12= 75
edg2020
Maris put trim around a mirror that is the shape of a square. Each side is 24 inches long. Maria has 1 foot of trim left. What was the length of the trim when she started? Write your answer in yards
Answer:
16.028 yards
Step-by-step explanation:
1 inch=0.0833333 foot
24 inches=0.0833333×24
=1.9999992 foot
The mirror is square shaped and each side is 24 inches
If each 24 inches=1.9999992 foot
Then,
4 sides of 24 inches=1.9999992×24
=47.9999808 foot
Maria has 1 foot of trim left
Total Length of trim when she started=47.9999808+0.0833333
=48.0833141 foot
=16.02777136667 yards
Approximately,
16.028 yards
Circle Q is centered at the origin and has a radius of 9 units. which equation could represent circle Q
Answer:
x^2 + y^2 = 81
Step-by-step explanation:
Mathematically, the equation of a circle can be represented by ;
(x-h)^2 + (y-k)^2 = r^2
where (h,k) is the center of the circle which is the origin in this case. The origin has the coordinates (0,0)
the radius here is 9 units
Thus, the equation of the circle would be;
(x-0)^2 + (y-0)^2 = 9^2
= x^2 + y^2 = 81
Which of the following are compound events? Check all that apply.
A. drawing an ace and then a king from a deck of cards
B.drawing a red card from a deck of cards
C.rolling a 1 on a number cube and then tossing a coin and landing on tails
D.choosing a banana, then an apple, and then an orange from a fruit basket
E.choosing a dime from a piggy bank
Answer:
A, C and D
Step-by-step explanation:
In this question, we are asked to select which of the options is/are example(s) of compound event(s)
The easiest way to answer this is to have an idea of what we mean by a compound event. When we talk about a compound event, we are referring to an event that has more than one outcome. This is a direct contrast to a simple event where we have only one outcome. To find the probability of a compound event, we shall need to add up the probabilities of all the single events that lies there in
In answering this question, we shall be considering the options one after the other.
A. It is a compound event
This is because we are looking at more than one event happening
B. It is not a compound event
It is not a compound event as we have only one outcome
C. This is a compound event
We have more than one outcome here. In fact, we are dealing with more than one sample space here
D. It is a compound event
We are working on different simple events here
E. It is not a compound event
It is not because we are only focused on a particular type of outcome
Answer:
A, C, D
A: drawing an ace and then a king from a deck of cards
C: rolling a 1 on a number cube and then tossing a coin and landing on tails
D: choosing a banana, then an apple, and then an orange from a fruit basket
Step-by-step explanation:
just did it on edge 2020 hope it helps
:)
Janet is in a race at a summer camp. She must run around a circular lake. She knows rhe diameter of the lake is 1.5 miles how far will Janet run? Use 3.14 for π
Answer:
4.71 miles
Step-by-step explanation:
Janet must run the length of the circumference of the circular lake.
The circumference of a circle is given as:
C = πD
where D = diameter of the circle.
The diameter of the circular lake is 1.5 miles. Therefore, its circumference is:
C = 3.14 * 1.5
C = 4.71 miles
She must run 4.71 miles.
Answer:
4.71
Step-by-step explanation:
How many solutions are there? 5(6x + 8) = 9x - 10 + 21x
Answer:
5(6x+8) =9x - 10 + 21x: No solution
Answer: No solution
Steps below
Step-by-step explanation:
1: Groups like terms.
2: Add similar elements 9x+21x=30x
3: Expand 5(6x+8): 30x+40
4: Subtract 40 from both sides
5: Simplify
6: Subtract 30x from both sides
7: Simplify
8: Answer: No solution
Hope this helps.
Answer: none
Step-by-step explanation:
30x+40=30x-10
at a movie theater, tickets for children cost $6.50 each and adult tickets cost $8.75 each. If ticket sales for a group of 35 people totaled 259$, how many children were in this group?
Answer:
Idk sorry I really wish I could help
Step-by-step explanation:
Find the volume of a pyramid with a square base, where the area of the base is
8.7 m and the height of the pyramid is 10 m. Round your answer to the nearest
tenth of a cubic meter.
Answer: 29.0
Step-by-step explanation:
The volume of a pyramid is equal to l*w*h/ 3 and we know that the length times the width is the same as the base.
so we will multiply 8.7 * 10= 87 /3= 29
Volume = 87 m³
You need to multiply the area and the height to find the volume. If you have the length, width, and height, then you need to multiply and 3 and divide it by 3. Hope I helped :)
Isla was researching kiwi birds. She categorized each bird she observed by species and gender. The two-way frequency table below shows data from observations of 200 kiwis.
Which of the following statements is true about the kiwis observed?
(Choice A)
There were the most observations of female tokoeka kiwis.
(Choice B)
Great spotted kiwis were more likely to be male than female.
(Choice C)
More than half of the kiwis were Northland brown kiwis.
(Choice D)
Northland brown kiwis were more likely to be female than tokoeka kiwis were.
Answer:
A.
I hope it helps
There were the most observations of female tokoeka kiwis in the given frequency table so option (A) will be correct.
What is a frequency table?A frequency table is a list of objects with the frequency of each item shown in the table.
The frequency of an occurrence or a value is the number of times it happens.
Given the frequency table of kiwi birds with their gender.
Number of female tokoeka kiwis = 44
Now if we look at the table there is none of any bird that is greater than 44 which means it is the most observations in the research.
Hence "There were the most observations of female tokoeka kiwis".
To learn more about the frequency table,
brainly.com/question/12576014
#SPJ2
What is 8000000000x183838484747474747474747474
Answer:
1.47070788E36
Step-by-step explanation:
$ 26.08 + $ 41.39 * whats the answer who ever answers will be a ble to xtra pints that i have
Answer:
Your answer is 67.47$
Step-by-step explanation:
Hope this helped stay safe bye!
Scientists often use the catch, band, and release method to estimate the size of wildlife populations. For example, 250 trout were caught, banded, and released into a small lake in Northern Ontario. One month later, another 250 trout were caught in the lake, 30 of them had bands. From this information scientists could estimate the size of the trout population of the lake. What is the expected population of trout? How do you know?
Answer:
2083.33 trouts
Step-by-step explanation:
Total population of fish in the pond is unknown, therefore, let's us represent this using letter Z
The ratio of banded , caught and released trout to the total trout population is represented as 250 : Z
We can solve this type of problem with a proportion:
Total number of fishes that was tagged and caught/ Total number of fishes that was caught = Total number of tagged fishes in the pond/ Total number of fishes in the pond.
In the question, we were given this values:
Total number of banded trout's that was caught and released into the pond = 250
Total number of trouts that was caught and had bands in the lake= 30
Total number of trouts that was caught in the lake = 250
Total number of fishes in the pond = Z
Hence we have:
30/250 = 250/ Z
We cross mulitply
30× Z = 250 × 250
30Z = 62500
We divide both sides by 30
30Z/ 30 = 62500/30
Z = 2083.33
Therefore, the expected population of trout is 2083.33 trouts
Farrah is making a dragon costume for her little brother. It would have triangular spikes down the head and back each head spike has a base of 2 centimeters and a height of 6 cm each box pies will be 10 centimeters high with a base of 6 in the costume of 6 specs on the head + 10 more spice than the back how many square centimeters of fabric will far are we need for all the dragon spikes
The question is not written properly! Complete question along with answer and explanation is provided below.
Question:
Farrah is making a dragon costume for her little brother. It would have triangular spikes down the head and back.
Each head spike has a base of 2 cm and a height of 6 cm.
Each back spike will be 10 cm high with a base of 6 cm.
if the costume has 6 spikes on the back and on the head 10 more spikes than the back then how many square centimeters of fabric will farrah need for all the dragon spikes?
Given Information:
Base of head spike = b₁ = 2 cm
Height of head spike = h₁ = 6 cm
Base of back spike = b₂ = 6 cm
Height of back spike = h₂ = 10 cm
Number of head spikes = n₁ = 10 + 6 = 16
Number of back spikes = n₂ = 6
Required Information:
How much fabric is needed = ?
Answer:
Farrah would need 276 cm² of fabric for all the dragon spikes.
Step-by-step explanation:
We are given that dragon costume have triangular spikes down the head and back.
The area of triangular shape is given by
Area = ½×b×h
Where b is the base and h is the height
The area of the head spike is
A₁ = ½×b₁×h₁
A₁ = ½×2×6
A₁ = ½×12
A₁ = 6 cm²
But we know that the number of head spikes is 16 so the total area of the head spikes is
A₁ = 16×6
A₁ = 96 cm²
The area of the back spike is
A₂ = ½×b₂×h₂
A₂ = ½×6×10
A₂ = ½×60
A₂ = 30 cm²
But we know that the number of back spikes is 6 so the total area of the back spikes is
A₂ = 6×30
A₂ = 180 cm²
The total area required is the sum of the area of head spikes and back spikes,
Total area = A₁ + A₂
Total area = 96 + 180
Total area = 276 cm²
Therefore, Farrah would need 276 cm² of fabric for all the dragon spikes.
Find the area of the shaded triangle
Area of a triangle is 1/2 x base x height.
The base of the shaded triangle is 2 ft. the height is 4 ft.
Area = 1/2 x 2 x 4 = 4 square feet.
Answer:
4 ft²
Step-by-step explanation:
A = 1/2bh Use this equation to find the area of the triangle
A = 1/2(4)(4) Multiply
A = 1/2(16) Multiply
A = 8 Area of entire triangle
A = 1/2(2)(4) Multiply
A = 1/2(8) Multiply
A = 4 Area of triangle not shaded
Take the area of the whole triangle minus the area of the unshaded part
8 - 4 = 4 ft²
The transformation from the function f(x) = 3X to the function f(x)= 3x+4 indicate
Which equation is true for x= -6 and x=2
Answer:
What are you options
Step-by-step explanation:
