Answer:
D. 105
Step-by-step explanation:
D
3 x 4 1/3 = ??
-- please help me
please find the m∠DEF
Answer:
m∠DEF=29
Step-by-step explanation:
4y-7=2y+11
4y=2y+18
2y+18
y=9
2(9)+11= 29
4(9)-7=29
Given the graphs of y = 4x - 2 and y = 2x – 6, which THREE statements are true?
A)
The system has one solution.
B)
The system has infinitely many solutions
Any point on either Line is a solution.
D)
The point of intersection is the solution.
E)
The point (-2.-10) is the only solution
The true statements about the graph are as follows;
The system has one solution.The point of intersection is the solution.The point (-2.-10) is the only solution.Given
The graphs of y = 4x - 2 and y = 2x – 6.
System of equations;A system of equations, also known as a set of simultaneous or an equation systems, is a finite set of equations for which we sought the common solutions.
To solve the graphs subtract equation 1 from equation 2.
[tex]\rm y-y=4x-2-2x+6\\\\0=2x+44\\\\2x=-4\\\\x=\dfrac{-4}{2}\\\\x=-2[/tex]
Substitute the value of x in equation 1
[tex]\rm y=4x-2\\\\y=4(-2)-2\\\\y=-8-2\\\\y=-10[/tex]
The point (-2.-10) is the only solution.
The true statements about the graph are as follows;
The system has one solution.The point of intersection is the solution.The point (-2.-10) is the only solution.To know more about the system of equations click the link given below.
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Teri used 60% of 20 gallons of paint. How much did she use?
.
G:
The 20%
discount on a
$55 sweatshirt
If there is a 20% discount on a $55 sweatshirt, that sweatshirt would now only cost $44.
Answer: $44
Also: The 20% is $11
Determine the intercepts of the line.
y=-9x-14y
Answer:
x-intercept (-14/9, 0), y-intercept (0, -14)
Step-by-step explanation:
0=-9x-14
9x=-14
x=-14/9
y=-9(0)-14
y=-14
Step-by-step explanation:
1.55 I was help to you..........
pls i need help 21÷3+(3×9)×9+5
Answer:
that will be 225 ... I think
A person invests 5000 dollars in a bank. The bank pays 5.25% interest compounded semi-annually. To the nearest tenth of a year, how long must the person leave the money in the bank until it reaches 10200 dollars?
Answer:13.8
Step-by-step explanation:
HIGHER ORDER THINKING A cell phone plan is shown on the right. The rates, which include an unlimited data plan, are the same each month for 7 months. The total cost for all 7 months is $180.39. Let m represent the average number of minutes that exceeds 700 minutes each month. A. Write an equation to represent the given situation. B. Solve the equation to determine how many additional minutes, on average, you use each month.
Answer: (a). M=7x180+39+700. (B) $731
Step-by-step explanation:
Equation to represent the given situation is 7(19.70 + 1.97 + m X 0.05) = 180.39; additional minutes, on average, you use each month is 82
What is Linear Equation?A linear equation is an algebraic equation of the form y=mx+b. involving only a constant and a first-order (linear) term, where m is the slope and b is the y-intercept.
Given that;
Total cost for 7 month =$180.39
Let m be the average number of minutes that exceeds 700 minutes every month
Equation formed;
7(19.70 + 1.97 + m X 0.05) = 180.39,
or, 7(19.70 + 1.97 + m X 0.05) = 180.39,
or, 21.67 + 0.05m = 180.39/ 7,
or, 0.05m = 25.77 – 21.67,
0.05m = 4.1
m= 82
Therefore, equation for (a) : 7(19.70 + 1.97 + m X 0.05) = 180.39 and 82 will be the answer of (b)
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Choose the best graph that represents the linear equation: -5x - y = 0 Graph A On a coordinate plane, a line goes through (0, 0) and (1, 5). Graph B On a coordinate plane, a line goes through (0, 0) and (5, 1). Graph C On a coordinate plane, a line goes through (0, 0) and (negative 1, 5). Graph D On a coordinate plane, a line goes through (0, 0) and (1, negative 5). a. Graph A c. Graph C b. Graph B d. Graph D
Answer:
2,4 is indeed correct on edg.
Graphs that show a linear function is second option
The linear equation graphs are the equation of straight line graph with slope.
for example y = mx where (x,y) be the point on the line and m be the slope.
here the only second graph shows a straight line graph. y values changes by when x value changes. there is a slope.
when we a x value we can compute the corresponding y value.
Step-by-step explanation:
What are the coordinates of a point that is 3 units right and 5 units up from the origin?
Answer: (3,5)
Step-by-step explanation:
x/3=-7
find the variable
Answer:
x=−21
Step-by-step explanation:
Answer: x=-21
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
1 /3 x =−7
Step 2: Multiply both sides by 3.
3*( 1/3 x)=(3)*(−7)
x=−21
Select the solution(s) to the following equation: (3x−2)(x+5)=0 SELECT ALL THAT APPLY
x=3/2
x=5
x=-5
x=2/3
x=-2/3
x=-3/2
Answer:
Step-by-step explanation:
Check by direct substitution. If we begin by checking x = 3/2, we substitute 3/2 for x in (3x - 2)(x + 5), obtaining (9/2 - 2)(3/2 + 5), which is NOT zero. Therefore x = 3/2 is not a solution.
(3*5−2)(5+5)=0 False. x = 5 is not a solution.
(3*[-5]−2)([-5+5)=0 True. x = -5 is a solution
x = 2/3: (3*2/3 - 2)( ) = 0. True x = 2/3 is a solution
x = -2/3: ( )( ) = -17 1/3; so x = -2/3 is not a solution
x = -3/2: ( ) ( ) = -22 3/4; so x = -3/2 is not a soution
solve: 2x+3y=1
y=-2x+11
Answer:
(8, -5); x=8; y=-5
Step-by-step explanation:
i'll be solving via substitution
2x+3y=1; y=-2x+11
2x + 3(-2x +11) = 1
2x -6x +33 = 1
-4x = -32
x = 8
2(8) + 3y = 1
16 + 3y = 1
3y = -15
y = -5
(8, -5)
Check:
-5 = -2(8) + 11
-5 = -16 + 11
-5 = -5
A large school district held a district-wide track meet for all high school students. For the 2-mile run, the population of female students participating follows a Normal distribution and had a mean running time of 8.8 minutes with standard deviation of 3.3 minutes. The population of male students participating also follows a Normal distribution and had a mean running time of 7.3 minutes with standard deviation 2.9 minutes. Suppose 8 female students and 8 male students who participated in the 2-mile run are selected at random from each population. Let xF represent the sample mean running time for the female students, and let xM represent the sample mean running time for the male students. a. Find and interpret the mean and standard deviation of the sampling distribution of the difference in sample means xF − xM. b. Find the probability of getting a difference in sample means xF − xM that is less than 0.
Answer:
If the question has
What are the mean and standard deviation of the sampling distribution of the difference in sample means x¯F−x¯M ?
It is E
Step-by-step explanation:
AP classroom uses the example with different end questions.
The mean and standard deviation of the sampling distribution of the difference in sample means xF − xM is 1.5 minutes(mean) and 1.533 minutes(std. dev) approx The probability of getting a difference in sample means xF − xM that is less than 0 is 0.0239 approx.
What is the distribution of random variable which is sum of normal distributions?Suppose that a random variable X is formed by n mutually independent and normally distributed random variables such that:
[tex]X_i = N(\mu_i , \sigma^2_i) ; \: i = 1,2, \cdots, n[/tex]
And if
[tex]X = X_1 + X_2 + \cdots + X_n[/tex]
Then, its distribution is given as:
[tex]X \sim N(\mu_1 + \mu_2 + \cdots + \mu_n, \: \: \sigma^2_1 + \sigma^2_2 + \cdots + \sigma^2_n)[/tex]
For this case, it is given that:
Distribution of time taken for distance ran by female is Normal distribution and had a mean running time of [tex]\mu_F[/tex] = 8.8 minutes with standard deviation of [tex]\sigma_F[/tex] = 3.3 minutes.Distribution of time taken for distance ran by male is Normal distribution and had a mean running time of [tex]\mu_M[/tex] = 7.3 minutes with standard deviation of [tex]\sigma_M[/tex] = 2.9 minutes.Samples of size n = 8 are taken from both population.Estimated sample mean = population mean
Estimated sample standard deviation = population std. dev / √n
where n = sample size
Thus, we get:
[tex]\overline{x}_F = \mu_F = 8.8 \: \rm minutes[/tex][tex]s_F = \sigma_F/\sqrt{8} = 3.3/\sqrt{8} \approx 1.167 \: \rm minutes[/tex][tex]\overline{x}_M = \mu_M = 7.3 \: \rm minutes[/tex][tex]s_M = \sigma_M/\sqrt{8} = 2.9/\sqrt{8} \approx 1.053\: \rm minutes[/tex]For sample of females, the distribution is [tex]X_F \sim N(\overline{x}_F = 8.8, s_F = 3.3/\sqrt{8})[/tex]
For sample of males, the distribution is [tex]X_M \sim N(\overline{x}_M =7.3, s_M = 2.9/\sqrt{8})[/tex]
Also, if we take distribution of difference between sample means([tex]X_F - X_M = X_F + (-X_M)[/tex], then it would be normal with mean = 8.8-7.3 = 1.5 minutes (as mean for [tex]-X_F[/tex] will be -7.3 but same standard deviation) as factor gets squared for affecting standard deviation and variance)
and standard deviation is: [tex]s = \sqrt{s_F^2 + s_M^2} = \sqrt{3.3^2/8 + 2.9^2/8} \approx 1.553 \: \rm minutes[/tex]
The distribution of difference between sample means is [tex]X_F - X_M \sim N(\overline{x} = 1.5, s = 1.533)[/tex] approximately
We need [tex]P(X_F - X_M < 0)[/tex]
Converting this distribution to standard normal distribution, we get:
[tex]P(X_F - X_M < 0) = P(Z < \dfrac{0 - \overline{x}}{s} \approx -1.98)[/tex]
From the z-tables, we get the p value for Z = -1.98 as 0.0239
Thus, we get:
[tex]P(X_F - X_M < 0) = P(Z < \dfrac{0 - \overline{x}}{s} \approx -1.98) \approx 0.0239[/tex]
Thus, the mean and standard deviation of the sampling distribution of the difference in sample means xF − xM is 1.5 minutes(mean) and 1.533 minutes(std. dev) approx The probability of getting a difference in sample means xF − xM that is less than 0 is 0.0239 approx.
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Find mZTUV if mZTUB = 229
and mZBUV = 156°
Solve
B
180°
78°
134°
178°
Multiply the binomials and simplify your answer. (2x+9)(3x-5)
Answer: =6x^2+17x−45
Step-by-step explanation:
=(2x+9)(3x+−5)
=(2x)(3x)+(2x)(−5)+(9)(3x)+(9)(−5)
=6x2−10x+27x−45
=6x2+17x−45
Answer:
[tex]6x^{2} -17x-45[/tex]
Step-by-step explanation:
Use distribution then combine like-terms to simplify
1. A jar contains 10 marbles, 6 marbles are red, and 4
marbles are blue. If 2 marbles are chosen one at a time
with replacement, what is the probability that the first
marble will be blue and the second marble will be red?
A 1/10
B.6/100
D. 1/25
Independent or Dependent?
Final Answer:
Answer:
1/20
Step-by-step explanation:
trust me............or not...jk its either 1/20 or 1/2 NO its 1/20
what is the solution of x + 6 < 5
A) x < 11
B) x > 11
C) x < -1
D) x > -1
Answer:
C. x < - 1
Step-by-step explanation:
1. Subtract 6 from both sides.
[tex]x < 5 - 6[/tex]
2. Simplify 5 - 6 to -1.
[tex]x < - 1[/tex]
Therefor, the answer is, x < -1.
Graph the line that has a slope of −13 and contains the point (3,−7)
Graph the line that has a slope of −13 and contains the point (3,−7) intercept is 32.
straight line graph can be represented two form
cartesian form ax+ by +c=0
slope intercept form y=mx +c
Where m is slope and c is the intercept in y axis
Value of m = change in y/change in x
back to question :- slope is -13
So, [y2-y1]/[x2-x1]= -13
{y+7/x-3 } = -13
y+7 = -13x +39
for intercept just put x=0
so y = 39-7
y=32
y= -13x +32
slope = -13
intercept = 32
Graph the line that has a slope of -1/3 and contains the point (3-7)
Plot the point (3,-7)
slope = -1/3 means y decreases 1/3 when x increases by 1
Let x increase by 3, then y decreases by 3(1/3) = 1
Put your pencil at (3,-7)
Increase x by 3 to (6,-7)
Decrease y by 1 to (6,-8)
Plot the point (6,-8)
Draw the graph as a line thru (3,-7),(6,-8)
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I decided to add a room to my house and now need to know the total square feet of the house. The dimensions of the original house are (X + 8) by (x + 12) and the dimensions of the new addition are x by (x + 6). What is the total area of my new house. What's the area of the original house? What's the area of the new addition? What's the total area of the house?
Answer:
+) the area of the original house is:
(x + 8)(x + 12) = x² + 20x + 96.
+) the area of the new addition is:
(x + 6)x = x² + 6x
+) the total area of the house is:
x² + 20x + 96 + x² + 6x = 2x² + 26x + 96
3 ve 4 ün ortak katları acil cevap lütfen
Jama works for ABC, pays 1/5 of his social service salary, 1/10 of his rent, 3/5 of his children's education with $ 1800 left, and attends night classes at university and earns $ 500.
produce all his wages?
5w-11/3=-4w
What is w
Answer:
Step-by-step explanation:
Exact Form:
w
=
11/3
Decimal Form:
w
=
3.6 (6 is repeated)
Mixed Number Form:
w
=
3 2/3
Is the point \displaystyle (1,2)(1,2) a solution to the system of equations \displaystyle y-10x=-8y−10x=−8 and \displaystyle y=-8x+10y=−8x+10?
YES
NO
PLS HELP
Find the end behavior
f(x)=-x^3-3x^2
When Laura was a store manager at a movie store, she made $500 a week. Ten years later, as a clothing store manager, she made $800 a week. What was the percent of change? Show your work and explain your answer.
pls help?!?!?!?!?!??!!
Answer:
m<A = 120°
m<C = 45°
Step-by-step explanation:
We can use the triangle sum theorem to find the measures of the angles.
m<A + m<B + m<C = 180°
Then substitute in their given values.
12x + 12 + 15 + 3x + 18 = 180°
Now simplify the equation and you get
15x + 45 = 180°
Continue to solve
15x = 135
x = 9°
Now substitute this value of 9 for the angle expressions of <A and <C
(12 x 9) +12 = m<A
m<A = 120°
(3 x 9)+ 18 = m<C
m<C = 45°
Hope this helps. To check your answer you can add up all the answers to see if it equals 180°.
10 Which shows the factored form of x2 - 12x - 45?
А
(x + 3)(x – 15)
B
(x - 3)(x - 15)
c
(x + 3)(x + 15)
(x - 3)(x + 15)
Answer:
The answer is (x+3)(x-15)
You have to fill a vase 3/4 full, you have a height of 13in and a radius of 6in how much water would need to be poured in order to fill the vase. Need answer very soon, please
Answer:
Step-by-step explanation:
At the flower store they told her that the vase should be filled 2/3 for the flowers to last the longest. Her cylinder vase has a radius of 3in and a height of 8in. How much water should Mary pour into the vase? Follow • ... Get the right answer, fast. ... No packages or subscriptions, pay only for the time you need.
HELP MEEE
ill give brainliest whatever
Answer:
for diamond A: -3.6 on top, -3 on left
for diamond B: -2 on left, 6 on right
for diamond C: 24 on top, -3 on right
Step-by-step explanation:
Answer:
Sorry but you aren't posting your answer again
Step-by-step explanation: