Answer:
x: Colleen
Luis: x+4
x+x+4=52
2x+4=52
2x=48
x=24: Colleen
x+4=28 Luis
The accuracy of verbal responses is tested in an experiment in which individuals report their heights and are then measured. The data consist of the reported height and measured height for each individual.
A. Cannot be determined from the information given
B. Dependent samples
C. Independent samples
Answer:
B. Dependent samples
Step-by-step explanation:
Dependent samples occur when you have two samples that do affect one another. Dependent samples are paired measurements for one set of items.
While independent samples occur when you have two samples that do not affect one another.
Independent samples are measurements made on two different sets of items.
A washer and dryer cost 1019$ combined. The washer costs 69$ more than the dryer. What is the cost of the dryer?
Answer:
440.5$
Step-by-step explanation:
1019$ ÷ 2 = 509.5
509.5 - 69$ = 440.5$
How much more gasoline will it take to fill the tank?
Answer:
I think you need to divide both fractions and see if you will get a answer from the answer choices.
Step-by-step explanation:
solve the equation2.2^2x-7×2^x-4=0.
Answer:
2
Step-by-step explanation:
2×2^2x - 7×2^x - 4=02×(2^x)^2 - 7×2^x - 4 = 0Substitute 2^x = y, where y>0
Then we get quadratic equation:
2y^2 - 7y - 4 = 0Solving this, we get y = 4 as positive root, so;
y = 42^x = 42^x = 2^2x = 2Answer is 2
Refer to the following distribution:Cost of Textbooks Frequency $25 up to $35 2 S35 up to $45 5$45 up to $55 7$55 up to $65 20 S65 up to $75 16What is the relative class frequency for the $25 up to $35 class? A) 0.10 B) 0.05 C) 0.02 D) 0.04
Answer:
[tex]Relative\ Frequency = 0.04[/tex]
Step-by-step explanation:
Given
Cost of Textbooks ---- Frequency
$25 up to $35 ----- 2
$35 up to $45 ------- 5
$45 up to $55 ------- 7
$55 up to $65 ------ 20
$65 up to $75 ---- -- 16
Required
Determine the relative class frequency for the $25 up to $35 class
First, we need to get the total frequency
[tex]Total = 2 + 5 + 7 + 20 + 16[/tex]
[tex]Total = 50[/tex]
Next, is to write out the frequency of $25 up to $35 class
[tex]Frequency = 2[/tex]
Divide this frequency by the total frequency; This gives the relative frequency
[tex]Relative\ Frequency = \frac{Frequency}{Total}[/tex]
[tex]Relative\ Frequency = \frac{2}{50}[/tex]
[tex]Relative\ Frequency = 0.04[/tex]
Hence;
Option D answers the question
An article claims that 12% of trees are infested by a bark beetle. A random sample of 1,000 trees were tested for traces of the infestation and found that 127 trees were affected.
z = p - p/underroot pq/n
Using the formula and data provided, what is the value of the z-test statistic?
Answer:
0.68
Step-by-step explanation:
The formula for z test is given above as:
z = p' - p/√(pq/n)
p' = sample proportion
= Number of infested samples(trees)/ Number of samples
p' = 127/1000 = 0.127
p = 12% = 0.12
q= 1 - 0.12 = 0.88
n = number of samples = 1000
z = 0.127 - 0.12/√(0.88 × 0.12/1000)
z = 0.007/√0.0001056
z = 0.007 /0.0102761861
z = 0.6811865737
Therefore, the z test statistic is approximately ≈ 0.68
please help me!!
find the variables!
1) 8x -44= -3x
2) 1w- 9= 4w
3) 5n- 16=1n
4) 8h+ 36=2
Answer:
Step-by-step explanation:
1. 11x = 44
x = 4
2. 3w = -9
w = -3
3. -4n = -16
n = 4
4. 6h = 36
h= 6
On a recent road trip, Johnny was able to drive 360 miles on 12 gallons of gas. a. What is the average gas mileage for Johnny’s car?
Answer:
1/30 gallon per mile
12/360=1/30
Answer:
Step-by-step explanation:
The answer is 1/30 of a gallon
12/360=1/30
An online merchant sells products that can be classified into the following non-intersecting categories: video games, electronics and clothing.In any given week, it is estimated that twice as many video games are sold compared to clothing items. However, the number of electronic items sold would be two-thirds of the number of video games sold, less one-fifth of the number of clothing items sold. A total of five items were independently sold in the past week.What is the probability that the five items consisted of three video games, one electronic item and one clothing item?A. 0.03B. 0.06C. 0.08D. 0.12E. 0.15
Answer:
0.15 ( E )
Step-by-step explanation:
Assuming
video game to be : V
electronics : E
clothing : C
From the content of the question
V = 2c
hence E = 2/3 V - 1/5 C
= 2/3 ( 2c ) - 1/5 c
= [tex]\frac{17c}{15}[/tex]
therefore : V = 2c and E = 17c / 15
assuming the number of clothing ( c ) = 15
V = 2*15 = 30 and E = ( 17 *15 ) / 15 = 17
Total number of items sold = V + C + E = 30 + 15 + 17 = 62
from here we can determine the probability that of the five items independently sold that there are 3 video game, 1 electronic item and 1 clothing item
attached below is the remaining part of the solution
Answer:
Step-by-step explanation:
I don’t understand this bs i need help.
Answer:
Easy answer is 7
Step-by-step explanation:
Subtract
Answer:
x<-1 or x>4
Step-by-step explanation:
Open ended means Less than
Close ended/colored means less than or equal to
I need help I'm in Jr high
Answer:
8
Step-by-step explanation:
It is at value 8
You may award me brainliest.
each line represent one interval numerically, space from 4-6 is five therefore teh numbers above are simply one above six and further more.
Samantha is building a miniature maze for a science experiment. she determines that she needs 6 yards of wood for the exterior walls. how many feet of wood must she by in order to build her maze?
Answer:
18 ft
Step-by-step explanation:
Convert yards to feet:
6 yds 3 ft
------------ * ------------ = 18 ft
1 1 yd
if a right cylinder have the same radius and height as the oblique cylinder shown here, what is the volume of the right cylinder? Use 3.14 for pi. Round to the nearest whole number.
Answer:
[tex]\displaystyle V_\text{right} \approx 1696\text{ units}^3[/tex]
Step-by-step explanation:
Recall that the volume for an oblique cylinder is the same for the volume of a right cylinder. That is:
[tex]\displaystyle V_\text{right} = V_\text{oblique} = \pi r^2h[/tex]
Hence, find the volume of the oblique cylinder:
[tex]\displaystyle \begin{aligned} V_\text{oblique} & = (3.14)(6)^2(15) \\ \\ & = 1695.6 \text{ units}^3 \\ \\ &\approx 1696\text{ units}^3\end{aligned}[/tex]
Therefore:
[tex]\displaystyle V_\text{right} \approx 1696\text{ units}^3[/tex]
In conclusion, the volume of the right cylinder is about 1696 units³.
Simplify (5x^2 + 3x + 4) + (2x^2 − 6x + 3).
Answer:
7x² - 3x + 7
Step-by-step explanation:
Step 1: Write out expression
5x² + 3x + 4 + 2x² - 6x + 3
Step 2: Combine like terms (x²)
7x² + 3x + 4 - 6x + 3
Step 3: Combine like terms (x)
7x² - 3x + 4 + 3
Step 4: Combine like terms (constants)
7x² - 3x + 7
Answer:
[tex]\Large \boxed{7x^2-3x+ 7}[/tex]
Step-by-step explanation:
[tex](5x^2 + 3x + 4) + (2x^2 -6x + 3)[/tex]
Removing brackets.
[tex]5x^2 + 3x + 4 + 2x^2 -6x + 3[/tex]
Grouping like terms.
[tex](5x^2 + 2x^2) + (3x -6x)+ (4 + 3)[/tex]
Combining like terms.
[tex](7x^2) + (-3x)+ (7)[/tex]
Solve for y. 8/5=4y. Simplify your answe
Answer:
2/5 =y
Step-by-step explanation:
8/5 = 4y
Divide each side by 4
8/5 * 1/4 = 4y/4
8/4 *1/5 = y
2 *1/5 = y
2/5 =y
Answer:
y=2/5
Step-by-step explanation:
8/5=4y
y=(8/5)/4
y=(8/5)(1/4)
y=8/20
simplify
y=2/5
What is [−7,−5)∩[−5,0]?
Answer:
[−7,−5)∩[−5,0] = [-5]
Step-by-step explanation:
A = A1 ∩ A2 means that A contains the intersected elements (shared elements) of A1 and A2
Find the differential of each function. (a) y = tan( 5t ) dy = Correct: Your answer is correct. (b) y = 5 − v2 5 + v2
Answer:
[tex](a)[/tex] [tex]dy = 5sec^2(5t) \ dt[/tex]
[tex](a) \ dy = \frac{-20v}{(5+v^2)^2} \ dt[/tex]
Step-by-step explanation:
Given;
(a) y = tan(5t)
[tex](b) \ y = \frac{5-v^2}{5+v^2}[/tex]
Solving for (a)
y = tan(5t)
let u = 5t
⇒y = tan(u)
du/dt = 5
dy/du = sec²u
[tex]\frac{dy}{dt} =\frac{dy}{du} *\frac{du}{dt} \\\\\frac{dy}{dt} = sec^2(u)*5\\\\\frac{dy}{dt} = 5sec^2(u)\\\\\frac{dy}{dt} = 5sec^2(5t)[/tex]
[tex]dy = 5sec^2(5t) \ dt[/tex]
Solving for b;
let u = 5 - v²
du/dv = -2v
let v = 5+ v²
dv/du = 2v
[tex]\frac{dy}{dv} = \frac{vdu - udv}{v^2} \\\\\frac{dy}{dv} = \frac{-2v(5+v^2) - 2v(5-v^2)}{(5+v^2)^2}\\\\\frac{dy}{dv} = \frac{-10v-2v^3-10v+2v^3}{(5+v^2)^2}\\\\[/tex]
[tex]\frac{dy}{dv} = \frac{-10v-10v}{(5+v^2)^2}\\\\\frac{dy}{dv} = \frac{-20v}{(5+v^2)^2}\\\\dy = \frac{-20v}{(5+v^2)^2} dt[/tex]
Plz help 7th grade math picture below
Answer: balance is -44 dollars
This indicates he owes 44 dollars
=======================================================
Explanation:
21 + (-30) = -9 is the balance if we don't account for the overdraft fee
If we do account for the overdraft fee, then -9 + (-35) = -44 is the bank balance.
Note how I'm using negative values to indicate balances in which Nick owes money, rather than it's the amount of money he has. So he owes the bank $44.
------------
A slightly different way to get the answer is to say
21-30 = -9
-9-35 = -44
This is because adding a negative is the same as subtraction.
match each statement to the reasons given for the geometric proof.
Given: ABCD is a parallelogram
Prove: Diagonals bisect each other(AE=CE and BE = DE
Answer: 5, 3, 1, 2, 6, 4
Step-by-step explanation:
The proof should be written as follows (which is a different order than provided):
Statement Reason
1. ABCD is a parallelogram 1. Given
2. AB||DC and AD||BC and AB ≅ DC 2. Definition of parallelogram
3. ∠ABD ≅ ∠CDB 3. Alternate Interior Angles Theorem
4. ∠DEC ≅ ∠BEA 4. Vertical Angles Theorem
5. ΔABE ≅ ΔCDE 5. AAS Congruency Theorem
6. AE = CE and BE = DE 6. CPCTC
This is the order provided in your question:
5. ΔABE ≅ ΔCDE 5. AAS Congruency Theorem
3. ∠ABD ≅ ∠CDB 3. Alternate Interior Angles Theorem
1. ABCD is a parallelogram 1. Given
2. AB||DC and AD||BC and AB ≅ DC 2. Definition of parallelogram
6. AE = CE and BE = DE 6. CPCTC
4. ∠DEC ≅ ∠BEA 4. Vertical Angles Theorem
Help Me out with this question plz thx
Answer:
6x³ - 8x + 9
Step-by-step explanation:
Step 1: Write out expression
2x + 7 + 6x³ - 1 + 3 - 6x - 4x
Step 2: Combine like terms (x)
6x³ - 8x + 7 - 1 + 3
Step 3: Combine like terms (constants)
6x³ - 8x + 9
Answer:
6x^3-8x+9.
Step-by-step explanation:
Rearrange the number with its like terms.
i.e. 6x^3+2x-6x-4x+7-1+3.
which will give us 6x^3-8x+9.
Another florist has 16 yellow mums and 40 white carnations. Which question can be answered by finding the GCF of 16 and 40? How many different combinations of yellow mums and white carnations can the florist make? What is the greatest number of identical groups that can be made with a number of mums and carnations in each group? How many total number of flowers will be in each group of mums and carnations? What is the greatest number of white carnations that can be in each group?
Answer:
B
Step-by-step explanation: I got correct on ed2020!
Hope this helps!~ :>
Answer:
B
Step-by-step explanation:
it's correct
According to an April 2019 report by the Cruise Lines International Association, in 2018 28.5 million people went on cruises, and this accounted for 2% of international travelers. How many people traveled internationally in 2018? Write your answer in millions of people.
Answer:
Total people international traveler on cruises = 1,425 million people
Step-by-step explanation:
Given:
Total people international traveler on cruises = 28.5 million
Percentage of international traveler = 2%
Find:
Total people international traveler on cruises
Computation:
Total people international traveler on cruises = 28.5 million × [100/2]%
Total people international traveler on cruises = 1,425 million people
The number of international travelers in 2018 was 570000.
Percentage is a number or ratio expressed as a fraction of 100. One percent is a hundredth part.
Given that in 2018 28.5 million people went on cruises, and this accounted for 2% of international travelers.
Number of international travelers = 2% of 28.5 million = 0.02 * 28.5 million = 570000The number of international travelers in 2018 was 570000.
Find out more on percentage at: https://brainly.com/question/24304697
16.75 + 3.2d - 4 + 6d = 51.39
HEEELP ME WITH THIS PROBLEM PLEASEEW
(The problem is in a picture)
Answer:
x < 6
Step-by-step explanation:
2 x -9 < 3
+9 . +9
2x < 3 + 9
2x < 12
__ . __
2 . 2
x < 6
You meet with the financial aid office to discuss your costs for attending MGA next semester. Tuition is
$113.67 per credit hour, and fees are a flat cost of $660. You have a grant of $350 and a scholarship of
$400. If you are taking 15 credit hours, what amount will you need to pay for your classes next
semester?
Answer:
$1615.05
Step-by-step explanation:
First, you need to determine the total cost for taking 15 credit hours:
Total cost=660+(113.67*15)
Total cost=$2,365.05
Now, you can subtract from that the amount of the grant and the scholarship you receive:
$2,365.05-$350-$400=$1615.05
According to this, the answer is that if you are taking 15 credit hours, you will need to pay $1615.05 for your classes next semester.
What number should be added to 77 to make the sum 0? (5 points)
77
-77
0
-76
Answer:
-77
Step-by-step explanation:
77+77=154 wrong
77+(-77)=0 right
77+0=77 wrong
77+(-76)=1 wrong
Answer:
b. -77
Step-by-step explanation:
What is the end behavior of the polynomial function? Drag the choices into the boxes to correctly describe the end behavior of the function. f(x)=−3x^4−3x^3−8x+2 f(x)=3x^3−8x^2−x+1
Answer:
f(x) = -3x⁴ - 3x³ - 8x + 2
As x -> ∞, f(x) -> -∞
As x -> -∞, f(x) -> -∞
f(x) = 3x³ - 8x² - x + 1
As x -> ∞, f(x) -> ∞
As x -> -∞, f(x) -> -∞
Step-by-step explanation:
Graph both functions.
End behavior is what happens to the y-values when x-values approach either +∞ or -∞.
PLS PLS HELP WILL GIVE 50 POINTS TO BRAINLIEST How do you find the radius of a circle with the equation: 03.5 (x+2.2)^2 + 3.5 (y−11.1)^2 − 21 = 0
Answer: r=√6 or r≈2.45.
Step-by-step explanation:
To find the radius, you first need to know the equation of a circle.
Equation of a circle: [tex](x-h)^2+(y-k)^2=r^2[/tex]
Now that we know the equation of the circle, we can use it to find the radius of the given equation.
3.5(x+2.2)²+3.5(y-11.1)²-21=0
So far the equation looks pretty similar with the exception of the bolded areas. To get rid of them, we need to use our algebraic properties.
3.5(x+2.2)²+3.5(y-11.1)²-21=0 [add both sides by 21]
3.5(x+2.2)²+3.5(y-11.1)²=21 [factor out 3.5]
3.5((x+2.2)²+(y-11.1)²)=21 [divide both sides by 3.5]
(x+2.2)²+(y-11.1)²=6
Now, our equation is the same as the one posted above. You may think that 6 is our radius, but if you look closely, the equation is equal to r². Therefore, 6 is actually r², not r.
r²=6 [square root both sides]
r=√6
Finally, we have the final answer, r=√6 or r≈2.45.
The length of a rectangle is four times its width. If the area of the rectangle is 324m^2, find its perimeter.
Answer:
[tex]perimeter=90[/tex]
Step-by-step explanation:
We know that the length is four times the width, so:
[tex]l=4w[/tex]
We also know the area, which is 324 m². The formula for area:
[tex]A=l*w[/tex]
Insert the known values:
[tex]324=(4w)*w[/tex]
Solve for w. Simplify by removing parentheses:
[tex]324=4w*w\\324=4w^2[/tex]
Divide 4 from both sides to isolate the variable:
[tex]\frac{324}{4}=\frac{4w^2}{4} \\\\81=w^2[/tex]
Find the square root of both sides:
[tex]\sqrt{81} =\sqrt{w^2} \\\\w=9[/tex]
The width is 9 m.
We know the width. Now find the length by using the area formula and inserting known values:
[tex]324=l*9[/tex]
Solve for l. Divide both sides by 9:
[tex]\frac{324}{9}=\frac{l*9}{9}\\\\ l=36[/tex]
The length of the rectangle is 36. (You can check: 4 times 9 is 36)
Now find the perimeter:
[tex]P=2l+2w[/tex]
Insert values:
[tex]P=2(36)+2(9)\\\\P=72+18\\\\P=90[/tex]
The perimeter is 90 m.
A sample of 40 11th graders were asked to select a favorite pattern out of 6 choices. The following display shows what their favorite color patterns were. The counts have been recorded in the accompanying table according to pattern and the number of students who chose that pattern.
Answer:
C. Graph C
Step-by-step explanation:
To easily find out which graph correctly displays the data from the list and table, note, the frequency of each color that in ascending order.
The color with the highest frequency would have the longest bar, followed by the 2nd highest, then the third, and so on. Thus, frequency should tally with the length of the bar.
From the table given, the top 3 are:
Pink polka dots => 12
Purple => 8
Ted and orange stripes => 7
Green => 6
Blue and gray => 4
Yellow => 3
The graph that has length of bars that corresponds to the frequency of the colors is graph C
Answer: graph c
Step-by-step explanation:
A P E X