The ordered pair (2, -4) is a solution to the system y= -2x and x -2y = 10.
11
Car Repair. Your bill for a car repair is $166.50. One third of the bill is for labor. How much is the charge for
labor? The mechanic worked on your car for 1.5 hours. What is the hourly charge for labor
Answer:
Labor = $49.95
Hourly Charge = $33.3
Step-by-step explanation:
166.50 x .3 = $49.95
$49.95 x 2/3 = $33.3
PLEASE HELP, DUE TODAY AND IM STUCK, ITS TWO QUESTIONS, WILL GIVE BRAINLIEST ♥
Drop down options for #4:
13
4x
-4x
3
-3
Answer:
#4: Blank 1: 4x, Blank 2: 3; #5: A) or D)
Step-by-step explanation:
Question 4: 4x, 3
Divide using the rules of synthetic divison (see Khan Academy)Blank 1: 4xBlank 2: 3Question 5: A) or D)
B) and C) are automatically out- they have the wrong notationIt's either A) or D) - don't know for sureWhich function is most likely graphed on the coordinate plane below?
Answer:
2nd one
Step-by-step explanation:
Pls let me know in 5 min or I’m dead
Answer:
( 0 , 4 )
Step-by-step explanation:
Your estimate is correct
Answer:
(-1, 6)
Step-by-step explanation:
sub the points into the equation if LHS and RHS are equal to each other, it is correct
Let A={a,b,c} and B={a,b,d}. (a) List or draw the ordered pairs in A×A. (b) List or draw the ordered pairs in A×B. (c) List or draw the set {(x,y)∈A×B:x=y}.
Previous question
a. The ordered pairs in A×A, where A is the set {a, b, c}, can be listed as {(a, a), (a, b), (a, c), (b, a), (b, b), (b, c), (c, a), (c, b), (c, c)}.
b. The ordered pairs in A×B, where A is the set {a, b, c} and B is the set {a, b, d}, can be listed as {(a, a), (a, b), (a, d), (b, a), (b, b), (b, d), (c, a), (c, b), (c, d)}.
c. The set {(x, y) ∈ A×B: x = y} consists of the ordered pairs where the elements of A and B are the same, i.e., {(a, a), (b, b)}.
a. To find the ordered pairs in A×A, we take each element in set A and pair it with every other element in set A. In this case, A = {a, b, c}, so the resulting ordered pairs are {(a, a), (a, b), (a, c), (b, a), (b, b), (b, c), (c, a), (c, b), (c, c)}.
b. To find the ordered pairs in A×B, we take each element in set A and pair it with every element in set B. In this case, A = {a, b, c} and B = {a, b, d}, so the resulting ordered pairs are {(a, a), (a, b), (a, d), (b, a), (b, b), (b, d), (c, a), (c, b), (c, d)}.
c. The set {(x, y) ∈ A×B: x = y} consists of the ordered pairs where the elements of A and B are the same. In this case, the elements of A and B that are the same are 'a' and 'b'. Therefore, the set {(x, y) ∈ A×B: x = y} contains the ordered pairs {(a, a), (b, b)}.
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Hannah deposited the same amount of money into her savings account each month after 5 months she had $2,550 into the savings account after 8 months she had $3,300 and the savings account create an equation that models the amount a and the savings account after x months not included interest show your work ever explain how you determine your equation
Answer:
a = 250x + 1300Step-by-step explanation:
We have pairs (5, 2550) and (8, 3300)
Find the rate of change:
(3300 - 2550)/(8 - 5) = 750/3 =250$250 is the amount added to savings account every month
Initial amount was:
2550 - 5*250 = 2550 - 1250 =1300Since the change is linear and we have y-intercept and slope, we can show the amount after x months as:
a = 250x + 1300Type the integer that makes the following subtraction sentence true:
-57 - ? = -151
Answer:
94
Step-by-step explanation:
Its pretty simple,
The easiest way to find the missing number is to do 151-57, which = 94
Write an exponential function in the form y = a b x that goes through points (0,7) and (3,875).
Thus, the exponential function written in the form of y = abˣ is given as: y = 7 (5)ˣ.
Explain about the exponential function?Calculating the exponential growth as well as decay of a given collection of data is done using an exponential function, which is a mathematical function.
Exponential functions, for instance, can be used to estimate population changes, loan interest rates, bacterial growth, radioactive decay, and disease spread.
Use the equation y = ab ,
Put the given points (0,7) and (3,875).
At, x = 0 and y = 7
7 = a(b)⁰
a = 7
And
At, x = 3 and y = 875
875 = 7(b)³
b = \(125^{\frac{1}{3} }\)
b = 5
Then, y = abˣ
Put values of a and b.
y = 7 (5)ˣ
Thus, the exponential function written in the form of y = abˣ is given as: y = 7 (5)ˣ.
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Complete question:
Write an exponential function in the form y = abˣ that goes through points (0,7) and (3,875).
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
Casandra rents a life jacket for a one-time fee of $5. she then rents a boat for $25 per day. write an expression represents the total cost, in dollars, to rent the life jacket and the boat for d days.
Answer:
it would be something along the lines of. 5+25d =c
This is due tonight.. <3 THANKS!! im giving brainliest
Suppose Chau has 8.04 pounds of seed. If it takes 6.7 pounds of seed to plant one acre of grass, how many acres of grass can be planted?
Answer:
its simple ans is 1.2 acres
Please answer this question now
Answer:
1306.24 cm².
Step-by-step explanation:
From the diagram given above, we obtained the following information:
Radius (r) = 13 cm
Pi (π) = 3.14
Slant height (l) = 19 cm
Surface Area (SA) =.?
The surface area of the cone can be obtained as follow:
SA = πr² + πrl
SA = πr ( r + l)
SA = 3.14 × 13 ( 13 + 19)
SA = 40.82 (32)
SA= 1306.24 cm²
Therefore, the surface area of the cone is 1306.24 cm².
A virus is very small compared to a human blood cell. A virus is about 0.0000009 meters. What is that in scientific notation?
Answer:
mark me brainliest
Step-by-step explanation:
9 x 10 *-6
Newer models of community organizing and community building have fluidity between collaboration and advocacy, and look at community strengths. Group of answer choices True False
True. Newer models of community organizing and community building emphasize a fluid approach that combines collaboration and advocacy while focusing on community strengths.
In recent years, community organizing and community building have evolved to embrace more dynamic and inclusive approaches. These newer models recognize the importance of collaboration and advocacy as complementary strategies for effecting positive change within communities. Rather than viewing collaboration and advocacy as mutually exclusive, they emphasize the need to strike a balance between the two.
This fluidity allows community organizers and builders to engage in collaborative efforts that bring together diverse stakeholders, including community members, organizations, and institutions. By working together, these stakeholders can pool their resources, expertise, and perspectives to address shared challenges and work towards common goals. Collaboration fosters cooperation, relationship-building, and collective decision-making, enabling the community to tap into its inherent strengths and assets.
Advocacy involves speaking up for community needs, raising awareness about systemic issues, and promoting policy changes that can improve the overall well-being of the community. By combining collaboration and advocacy, community organizers and builders can create a more holistic and comprehensive approach that leverages community strengths, engages a broader range of stakeholders, and promotes sustainable change.
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iRe_ cd A To Build A Fire
Which expression shows a way to find 6 x 1,295?
(6 x 12) + (6 x 95)
(6 x 1) + (6 x 2) + (6 x 9) + (6 x 5)
(6 x 120) + (6 x 95)
(6 x 1,000) + (6 x 200) + (6 90) + (6 x 5)
To find 6 x 1,295, you can use the expression (6 x 1,000) + (6 x 200) + (6 x 90) + (6 x 5). Here's a step-by-step explanation:
1. Multiply 6 by each part of the number 1,295:
6 x 1,000 = 6,000
6 x 200 = 1,200
6 x 90 = 540
6 x 5 = 30
2. Add the results from step 1:
6,000 + 1,200 + 540 + 30 = 7,770
So, 6 x 1,295 = 7,770.
An expression, also known as a mathematical expression, is a well-formed, limited, and context-dependent combination of symbols.
A mathematical expression is a sentence that includes at least one math operation and at least two numbers or variables. This mathematical operation can be division, addition, subtraction, or multiplication. An expression's structure is as follows: (Number/variable, Math Operator, Number/variable) is the expression.
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Jamal welqui play is $200 plus he earns 8%commission on his weekly sales amount what will jamal make in a week if the sells $6000
Jamal will make $680 in a week if he sells $6000 and earns an 8% commission on his sales amount.
To calculate Jamal's earnings in a week, we need to determine his commission based on his sales amount and add it to his base pay.
Base pay: $200
Commission rate: 8%
Sales amount: $6000
First, let's calculate Jamal's commission:
\(Commission = Commission $ rate \times Sales $ amount\)
Commission = 8% of $6000
\(Commission = 0.08 \times $6000\)
Commission = $480.
Next, we add the commission to Jamal's base pay to find his total earnings:
Total earnings = Base pay + Commission
Total earnings = $200 + $480
Total earnings = $680.
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ANSWER IT FOR BRIANLESTT AND POINTS
Answer:
Top right square. It's mirroring the image on the other side of the y axis. So Quadrant 2
Need help with 5 hurry I have to go somewhere in 5 minutes
Answer:
c. What is your favorite book?
Explanation:
A question is said to be biased when it is asked in such a way that it leads or skews people intentionally to a particular answer.
Looking at the given questions in the options, we can see that three of them have a particular person or thing mentioned in the question. These are examples of biased questions.
But the question, "What is your favorite book?" does not suggest a name of a particular book to the respondent which could influence their responses. This type of question is not biased.
I NEED HELP ON THIS
(see photo below for questions)
v
Answer:
∠4 = ∠5 = ∠8 = ∠1 = 140°∠2 = ∠3 = ∠6 = ∠8 = 40°Step-by-step explanation:
Given angle 1 = 140°, you want the measures of the other numbered angles where a transversal crosses parallel lines.
ReasonsWhere a transversal crosses parallel lines, corresponding angles are congruent.
Wherever lines cross. vertical angles are congruent, and linear pairs are supplementary.
These reasons together tell you all the obtuse angles are congruent, and all the acute angles are congruent. The obtuse and acute angles are supplementary.
Application∠1 = ∠4 = ∠5 = ∠8 = 140° . . . . . . given
∠2 = ∠3 = ∠6 = ∠7 = 40° . . . . . . done for you
__
Additional comment
The angles are also named according to where pairs of angles are found.
alternate — on opposite sides of the transversalconsecutive, or same side — on the same side of the transversalinterior — between the parallel linesexterior — outside the parallel linescorresponding — in the same direction from the point of intersection (for example, angles 1 and 5 are both northwest of their vertices, hence corresponding)Various theorems describe the congruent/supplementary status of pairs of angles using these names:
if the lines are parallel, then corresponding angles are congruent; if the lines are parallel, then consecutive exterior angles are supplementary; ....In general, the converses of these theorems are also true. If corresponding angles are congruent, then the lines are parallel.
[17] Write a numerical expression to represent the phrase: "The quotient of 30 and the sum of 5 and 7"
Solution:-
The sum of 5 nd 7 is:
5 + 7 = 12The quotient of 30 nd the sum of 5 nd 7 is written as:
\(\large{ \frak{\frac{30}{ \: 7 + 5 \: } }}\)\( \: \).
\( \large \frak{ \cancel \frac{ \: 30 \: }{ \: 12 \: } }\)\( \: \)
\( {\underline{\boxed{\large{ \red{ \frak{= 2.5\: }}}}}}\)\( \: \)
hope it helps! :)
.
Help me find what CD is pls I can't seem to answer the formula
Given the points:
C = (10, -1) → x = 10; y = -1;
D = (-6, 3) → x = -6; y = 3.
To find the distance CD, follow the steps below.
Step 1: Substitute the values in the distance formula.
\(\begin{gathered} d=\sqrt[]{(x_2-x_1)^2+(y_2-y_1)^2} \\ d=\sqrt[]{(-6-10_{})^2+(3_{}-(-1))^2} \end{gathered}\)Step 2: Solve the values inside the parentheses.
\(\begin{gathered} d=\sqrt[]{(-16)^2+(4)^2} \\ d=\sqrt[]{256+16} \\ d=\sqrt[]{272} \end{gathered}\)Step 3: Solve the square root and find d.
\(\begin{gathered} d=\sqrt[]{272} \\ d=16.5 \end{gathered}\)Answer: The distance CD is 16.5.
What is 100,000+4,000+800+5 in standard form
Answer: 104,805
Step-by-step explanation:
just add
Answer:
104,805
Step-by-step explanation:
add it in each placement form
What is the volume of this triangular prism?
Answer:
V=1/3πSh=72π
Step-by-step explanation:
Need to find S(area):
S(triangle)=1/2x6x8=24(ft)
h=9(ft)
=> V=1/3πSh=72π
A report by Gallup Poll showed that the proportion of Americans that fear public speaking is.5000. A student believes that the proportion of students at her school that fear public speaking is less than.5000. She randomly surveys 400 schoolmates and finds that 125 fear public speaking. Conduct a hypothesis test at the 5% level to determine if the proportion at her school is less than.5000. What is the test statistic accurate to 2 decimal places? z = 7.50 O t = 7.50 O z = -7.50 O t = -7.50 None of the above
The significance level is 0.05.
There is evidence to suggest that the proportion of students at the school who fear public speaking is less than 0.5000.
Test statistic is -6.94 accurate to two decimal places.
What method is used to calculate significance level and test statistic?We can use a one-tailed hypothesis test with the following null and alternative hypotheses:
Null hypothesis: The proportion of students at the school who fear public speaking is equal to or greater than 0.5000.
Alternative hypothesis: The proportion of students at the school who fear public speaking is less than 0.5000.
The significance level is 0.05.
To conduct the test, we need to find the test statistic and compare it to the critical value.
First, we calculate the sample proportion of students who fear public speaking:
p⁻ = 125/400 = 0.3125
Next, we calculate the standard error of the sample proportion:
SE = sqrt[p⁻(1 - p⁻) / n] = sqrt[0.3125(1 - 0.3125) / 400] = 0.027
Then, we calculate the test statistic:
z = (p⁻ - p) / SE = (0.3125 - 0.5000) / 0.027 = -6.944
Since the alternative hypothesis is that the proportion of students who fear public speaking is less than 0.5000, we use a one-tailed test and look up the critical value for a 5% level of significance in the standard normal distribution table. The critical value is -1.645.
Since the calculated test statistic (-6.944) is less than the critical value (-1.645), we reject the null hypothesis.
Therefore, we can conclude that there is evidence to suggest that the proportion of students at the school who fear public speaking is less than 0.5000.
The test statistic is -6.94 accurate to two decimal places.
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A public health official responding to an outbreak of measles needs to estimate the vaccination rate in the community. The official will use a confidence interval of ' 95
′
% and a margin of error of ' 2%, but they do not have an estimate for the population proportion.
The public health official can estimate the vaccination rate in the community with a 95% confidence interval.
A public health official responding to an outbreak of measles needs to estimate the vaccination rate in the community. The official will use a confidence interval of 95%.
To estimate the vaccination rate with a 95% confidence interval, the official will need to collect a sample of individuals from the community and determine the proportion of vaccinated individuals in that sample. The confidence interval will then provide a range within which the true vaccination rate in the community is likely to fall.
Here are the steps to calculate the confidence interval:
1. Determine the sample size: The official needs to decide on the desired level of precision for the estimate. A larger sample size will provide a narrower confidence interval. The official may consult statistical tables or use a formula to determine the appropriate sample size.
2. Collect the sample: The official will need to randomly select individuals from the community to participate in the study. It is important to ensure that the sample is representative of the population.
3. Calculate the sample proportion: The official will calculate the proportion of vaccinated individuals in the sample. This is done by dividing the number of vaccinated individuals by the total sample size.
4. Determine the standard error: The standard error measures the uncertainty in the estimate of the sample proportion. It is calculated using the formula: sqrt((p * (1-p)) / n), where p is the sample proportion and n is the sample size.
5. Calculate the confidence interval: Using the sample proportion and the standard error, the official can calculate the confidence interval. The formula for the confidence interval is: sample proportion +/- (critical value * standard error). The critical value depends on the desired level of confidence. For a 95% confidence interval, the critical value is typically 1.96.
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[-2], absolute value of -2 is:
Answer:
answer is 2
Step-by-step explanation:
absolute value of -2 is 2
Answer:
2
Step-by-step explanation:
Given that R = 8 x + 4 y Find y when x = 8 and R = 30 Give your answer as an improper fraction in its simplest form.
Answer:
y = -17/2
Step-by-step explanation:
Substitute with the givens.
30= 8(8) + 4y.
Multiply parentheses.
30 = 64 + 4y
Subtract.
30-64= -34
-34 = 4y.
Divide each side by 4.
y = - 8.5, or -17/2
hope that is right!
question content area the function f (x, y) = x 2 y 2 has a single global minimum and is relatively easy to minimize. (True or False)
The given function is f(x, y) = x²y². We are to determine if this function has a single global minimum and is relatively easy to minimize or not. To check if a function has a global minimum, we need to take the partial derivative of the function with respect to x and y.
Let's evaluate it.∂f/∂x = 2xy² ∂f/∂y = 2x²y Equating both the partial derivatives to zero, we get;2xy² = 0 => xy² = 0 => x = 0 or y = 0 2x²y = 0 => x²y = 0 => x = 0 or y = 0
Hence, the stationary points are (0,0), (0, y), and (x,0). Let's use the second derivative test to determine if the stationary point (0,0) is a global minimum, maximum, or saddle point.∂²f/∂x² = 2y² ∂²f/∂y² = 2x² ∂²f/∂x∂y = 4xy
The determinant is;∆ = ∂²f/∂x² * ∂²f/∂y² - (∂²f/∂x∂y)² = 4x²y²Since (0,0) is a stationary point, we have ∂f/∂x = 0 and ∂f/∂y = 0 which implies that x = 0 and y = 0, respectively. Thus, ∆ = 0 which means that the second derivative test is inconclusive and we cannot determine if (0,0) is a global minimum, maximum, or saddle point. The given function does not have a single global minimum and is not relatively easy to minimize.
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Claire was out at a restaurant for dinner when the bill came. Her dinner came to $26. After adding in a tip, before tax, she paid $29.12. Find the percent tip.
Answer:
0.0312
Step-by-step explanation:
You subtract 29.12 by 26 which equals 3.12
Then you divide by 100 which equals 0.0312
Answer:
12
Step-by-step explanation: