Answer:
He losses 27 $
Step-by-step explanation:
On Monday he got 47$
On Tuesday he loss 12$
On Wednesday he loss 8$
Total :
47 - (12 + 8)
47 - 20 = 27
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Is the following relation a function?
Yes
No
Answer:
no
Step-by-step explanation:
Answer:
No
Step-by-step explanation:
The vertical line test can be used to decide whether a relation is a function. If you draw a vertical line x = a, the line will intersect the graph of the relation twice for all a > 0. This just means that there are values of x where there is more than one y value, so this is not a function.
The figure shown is often used to prove the Pythagorean theorem. Part of the proof is
showing that QRST is a square. The four sides of QRST are the same length. Which
explanation best completes the proof that QRST is a square?
Answer: D
Step-by-step explanation:
Formalize the following argument by using the given predicates and then rewriting the argument as a numbered sequence of statements. Identify each statement as either a premise, or a conclusion that follows according to a rule of inference from previous statements. In that case, state the rule of inference and refer by number to the previous statements that the rule of inference used. Dogs bark at cats. Max is a dog. Moonbeam is a cat. Therefore, Max barks at Moonbeam. Predicates: B(x,y) = "x barks at y". D(x) = "x is a dog". C(x) ="x is a cat". The common domain of discourse is all animals.
Based on the inference, we can conclude that Max barks at Moonbeam.
What's the inference?To formalize the argument, we can use the given predicates and rewrite the statements as a numbered sequence, identifying each statement as either a premise or a conclusion that follows according to a rule of inference from previous statements. Here's the formalization:
Premise: Dogs bark at cats. (For all animals x and y, if D(x) and C(y), then B(x, y).)
Premise: Max is a dog. (D(Max))
Premise: Moonbeam is a cat. (C(Moonbeam))
Conclusion: Max barks at Moonbeam. (B(Max, Moonbeam))
In this formalization, statement 4 is the conclusion, and it follows from statements 1, 2, and 3. The rule of inference used is the universal instantiation, which allows us to instantiate the universal statement from statement 1 to a specific case involving Max (statement 2) and Moonbeam (statement 3). Therefore, we can conclude that Max barks at Moonbeam.
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Classify each inequality by the graph of its solution.
Answer:
Step-by-step explanation:
1). |10 - 3x| < 12
⇒ -12 < (10 - 3x) < 12
⇒ -12 -10 < -3x < 12 - 10
⇒ -22 < -3x < 2
⇒ [tex]-\frac{2}{3}<x<\frac{22}{3}[/tex]
[Intersection]
2). |8x| ≥ 0 ⇒ -∞ < x < ∞
[All real numbers]
3). -2|x - 9| > 6
⇒ |x - 9| < -3
[No solution]
4). |2x + 9| + 7 ≥ 6
⇒|2x + 9| ≥ -1
⇒ (2x + 9) ≥ -1
⇒ x > -5
Or (2x + 9) ≤ -1 ⇒ x < -5
-∞ < x < ∞
[All real numbers]
5). |-3 - x| ≥ 5
⇒(-3 - x) ≥ 5
⇒-x ≥ 8
⇒ x ≤ -8
Or -(3 + x) ≤ -5
⇒ x + 3 ≥ 5
⇒ x ≥ -2
[Union]
6). -18 + |x + 9| ≤ -5
⇒ |x + 9| ≤ 13
⇒ -13 ≤ (x - 9) ≤ 13
⇒ -4 ≤ x ≤ 22
[Intersection}
Graph the solution to this inequality on the number line.
−6x+8<−40
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Verify whether 2 and 0 are zeroes of the polynomial x2 – 2x
Answer:
Yes, 2 and 0 are the zeroes.
Step-by-step explanation:
Given polynomial: x²-2x
p(2)= 2²-2(2)
= 4-4
= 0
p(0)= 0² -2(0)
= 0-0
= 0
What is 38,050,000 expressed in scientific notation?
Answer:
8.05 x 10³³ (the ³³ means 6)
Step-by-step explanation: a x 10b
Answer:
idek
Step-by-step explanation:
PLEASE HELP Solve this equation show your work and choose the best answer: 5X +8 = 18
Write words to match the expression 3 + (4 × 12)
Answer:
4 times 12 plus 3
Step-by-step explanation:
Answer:
cccc
Step-by-step explanation:
cccccc
2000×40 with step by step explaination
Answer:
80000
Step-by-step explanation:
you multiply 2000x40 and get 80000 or you can do 8x10^4
Hugh works two part-time jobs. One is at a grocery store that pays $10 an hour, and the other is babysitting for $13 an hour. Between the two jobs, Hugh wants to earn at least $260 a week. How many hours does Hugh need to work at each job to earn at least $260? Let x be the number of hours he works at the grocery store, and let y be the number of hours he works babysitting. Write an inequality that would model this situation.
Answer:
7(10x+13y)≥260
Step-by-step explanation:..........x=3/y=1
The inequality that would model this situation is; 7(10x+13y ) ≥ 260.
What is a solution set to an inequality or an equation?If the equation or inequality contains variable terms, then there might be some values of those variables for which that equation or inequality might be true. Such values are called solution to that equation or inequality. Set of such values is called solution set to the considered equation or inequality.
We are given that at a grocery store that pays $10 an hour, and the other is babysitting for $13 an hour.
Also Between the two jobs, Hugh wants to earn at least $260 a week.
suppose x be the number of hours he works at the grocery store, and let y be the number of hours he works babysitting.
Now we will Write an inequality that would model this situation.
7(10x+13y ) ≥ 260
Therefore, the inequality that would model this situation is; 7(10x+13y ) ≥ 260.
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if r and s are two solutions of the equations above r > s which of the following is the value of r-s
Answer:
= r
Step-by-step explanation:
as r is greater than s the possibel outcome would be r in the value r-s
Dave took a math test. The test started at 9:21, and was 29 minutes long. What time was it when Dave's test ended
Answer:
9:50
Step-by-step explanation:
Answer:
9:50
Step-by-step explanation:
9:21 + 29 mins = 9:50
Evaluate each function.
h(x) = 2x + 2; Find h(10)
O 22
O 18
O 8
O -8
Answer:22
Step-by-step explanation:
Substitute and solve
An adult ticket to a football game was $1.75. A student ticket was $1.25. The number of student tickets sold was twice the number of adult tickets. The total from the ticket sales was $850. If a represents the number of adult tickets, which linear equation can be used to determine how many adult tickets were sold?
Answer:
1.75/1.25=1.4
Step-by-step explanation:
Which number is most likely an irrational number?
5.262626262...
4.279458105...
-7.933333333...
-2.800000000...
Answer:
4.79458105...
Step-by-step explanation:
As you can see after the decimal all the numbers have a sequence like:5. 2626... 2 and six are repeated and 7.93333...,2.8000... 3 and 0 keeps on repeating but for 4.79458105... so there for its irrational
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Please help me I need this today !!!!!
Answer:
mom jogs 6 miles every hour
Step-by-step explanation:
30 miles divided by 5 equals 6 so 6 miles per hour
Answer:
6 miles per hour
Step-by-step explanation:
take 30 and divide by 5
A car is 12 feet long. Levi makes a scale model of the car at 1:8 of its actual model .how long is the model?
Random samples of size 81 are taken from an infinite population whose mean and standard deviation are 200 and 18, respectively. The distribution of the population is unknown. The mean and the standard error of the sampling distribution of sample mean are
Select one:
a. 200 and 18
b. 9 and 2
c. 81 and 18
d. 200 and 2 Correct
Answer:
D 200 and 2
Step-by-step explanation:
standard error of the sampling distribution of sample mean is expressed using the formula;
Standard error of the mean = S/√n where;
S is the standard deviation
n is the sample size
Given
S = 18
n = 81
SEM = 18/√81
SEM = 18/9
SEM = 2
The mean of the distribution according to the question is 200.
Hence the mean and the standard error of the sampling distribution of sample mean are 200 and 2 respectively.
Heather invested $8,000 in a 4-year Certi!cate of Deposit (CD) that pays 4.1% interest COMPOUNDED QUARTERLY. What is the value of the CD at the end of the 4 years? Round your answer to the nearest cent.
Answer:
Step-by-step explanation:
THE ANSWER IS 10
Naheem is thinking of going canoeing with some of his pals this weekend. It costs $35 to rent the canoe and $3 per hour its rented. If Naheem has $50 total, how many hours can he afford?
Hello! My name is Chris and I’ll be helping you with this problem.
Date: 9/28/20 Time: 9:51 am CST
Answer:
5 hours
Explanation:
Step 1: Set up an equation:
35 + 3x = 50
Step 2: Solve:
35 + 3x = 50 Subtract 35 from both sides
3x = 15 Divide 3 from both sides
x = 5
I hope this helped answer your question! Have a great rest of your day!
Furthermore,
Chris
What are the rate of change and the intercepts of the graph?
Answer:
rate of change is a #
Step-by-step explanation:
Rewrite in simplest terms: (3x + 2) + (-10x-3)
Answer:
Step-by-step explanation:
Remove the brackets
3x + 2 - 10x - 3
-7x - 1
Answer: - 7x - 1
Step-by-step explanation:
Combine Like Terms
3x - 10x = - 7x
2 - 3 = - 1
Then write them together
- 7x - 1
The chart shows the number of votes received by Mr. Peters and Mr. Samson out of a
total of 100 votes. What percent of the votes did Mr. Samson receive?
Teacher
Votes
Mr. Peters
44
Mr. Samson
56
56%
» 40%
() 45%
>) 50%
Answer:
100 I guess so........
Step-by-step explanation:
100
Mr. Samson received 56% votes.
What are percentages?A percentage is a number or ratio that can be expressed as a fraction of 100. If we have to calculate the percent of a number, divide the number by the whole and multiply by 100. Hence, the percentage means, a part per hundred. The word percent means per 100. It is represented by the symbol “%”
Given here Mr. Samson receives 56 votes out of 100 thus we have in percentage terms as 56/100 × 100=56%
Hence, Mr. Samson received 56% votes.
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One day 28 small and 12 large merchant spaces were rented. Another day, 30 small and 15 large spaces were rented. Write and evaluate an expression to show the total rent collected
Answer:
The expression which shows the total rent collected is S + L
The total rent collected is 85 of different size
Step-by-step explanation:
Let us list the given information
→ On one day: 28 small and 12 large merchant spaces were rented
→ Another day: 30 small and 15 large spaces were rented
Let S represents the small spaces and L represents the large spaces
∴ The total rent collected = S + L
∵ S in the two days = 28 + 30
∴ S = 58
∵ L in the two days = 12 + 15
∴ L = 27
Substitute The values of S and L in the expression of the total above
∴ The total rent collected = 58 small spaces + 27 large spaces
∴ The total rent collected = 85 of different size
The expression which shows the total rent collected is S + L
The total rent collected is 85 of different size
I need help with this someone!!
Answer:
Do u have answer choices?
Answer:
Your proportional constant would be 3 in this case.
Step-by-step explanation:
To find it yourself, try and find what number the y-axis equals when x=1. Hope this helps!
At CVS, the tax paid was $2.45, which was 7% of the cost. What was the cost of the items purch
ased?
'Percentage' is obtained by multiplying 2.45 by - 7%.
- 7% × 2.45 =
(- 7 ÷ 100) × 2.45 =
(- 7 × 2.45) ÷ 100 =
- 17.15 ÷ 100 =
- 0.1715 ≈
- 0.17;
How do we check the result?If - 7% × 2.45 = - 0.1715 =>
Divide - 0.1715 by 2.45...
... And see if we get as a result: - 7%.
Note:100/100 = 100 ÷ 100 = 100% = 1
Multiply a number by the fraction 100/100,
... and its value doesn't change.
n/100 = n%, any number.
I need help please, 20 points
Answer:
3/16
Step-by-step explanation:
Ronald drives his car down a road for 4 miles then turns around and drives back towards his starting point for 1 mile. what
is his distance traveled?
Answer:
5 miles
Step-by-step explanation:
4+1 =5
Answer:
5 miles
Step-by-step explanation:
Ronald's total distance traveled would be 5 miles because he travels 4 miles in one direction and 1 mile in another. 4+1= 5
His displacement would be 3 miles because he went, let's say, right 4 miles and then turned around and went left for 1 mile. This puts Ronald at 3 miles from his starting point.
The length of shoes is 25 centimeters. how long is the shoe meters?
Answer:
The shoe is 0.25 or 1/4 meters long.
Step-by-step explanation:
