Answer:
Your answer would be to Use the distributive property on each side of the equation.
Step-by-step explanation:
You would first expand the equation by using the distributive property on each side of the equation
[tex]2x + 9(x - 1) = 8(2x + 2) - 5\\2x + 9(x) 9(-1) = 8(2x) 8(2) - 5\\2x + 9x-9 = 16x+16 - 5[/tex]
Then you would combine like terms on both sides
[tex]2x+9x-9=11x-9\\16x+16-5=16x+11[/tex]
Now you solve for x
[tex]11x-9=16x+11[/tex]
You subtract 11x from both sides
[tex]11x-9=16x+11\\-11x=-11x[/tex]
Then you subtract 11 from both sides
[tex]-9=5x+11\\-11=-11[/tex]
Then you divide 5 on both sides
[tex]-20=5x[/tex]
[tex]\frac{-20}{5} =\frac{5x}{5}[/tex]
[tex]x=-4[/tex]
Answer:
B
Step-by-step explanation:
Miguel takes $50 to the mall. He buys a shirt for $18.99 and a hat for $12.49. On his way home, he stops at the bank and withdraws $25. How much money does he have now?
I REALLY NEED HELP PLEASE!
Answer:
50 - 18.99 = 31.01 - 12.49 = 18.52
18.52 + 25 = 43.52$
Miguel's got 43.52$ now.
1) Of the last 100 people who failed the lie detector test, 23 turned out to be telling the truth. What is
the probability that the next person who fails the test is actually telling the truth?
A) 0.23
B) 0
C) 0.5
D) 0.77
Oh
The probability of those telling the truth is an illustration of experimental probability.
The probability that the next person tells the truth is 0.23
The given parameters are:
[tex]\mathbf{n = 100}[/tex] -- sample size
[tex]\mathbf{x = 23}[/tex] -- those telling the truth
So, the probability that the next person tells the truth is:
[tex]\mathbf{Pr = \frac xn}\\\\\\[/tex]
Substitute values for x and n
[tex]\mathbf{Pr = \frac{23}{100}}[/tex]
Divide 23 by 100
[tex]\mathbf{Pr = 0.23}[/tex]
Hence, the probability that the next person tells the truth is 0.23
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help here ASAP
which one is true?
Step-by-step explanation:
9π > 27
π > 27/9
π > 3
Option B
When 24 is multiplied by w, the product is 288. What is the quotient when 24
is divided by w? Answer
Answer:
2
Step-by-step explanation:
24*w = 288
w = 288 /24
w = 12
24 ÷ w = 24 ÷ 12 = 2
In the given figure find the value of the unknown interior angle x in the following figure.
Answer:
Therefore, the measure of angles x is 70°.
Step-by-step explanation:
From the given figure ,
115° is the exterior angle
x° and 45° are the two interior opposite angles to 115°
We know that
An exterior angle formed by extending the side of a triangle is equal to the sum of the two interior opposite angles
⇛ x° + 45° = 115°
⇛ x° = 115°-45°
⇛ x° = 70°
Therefore , x = 70°
Its due tonight pls hurry:///
Answer:
a.
f(4) = 10•4 -6
f(4) = 40 -6
f(4) = 34
b.
f(-1/2) = 10•(-1/2) -6
f(-1/2) = -5 -6
f(-1/2) = -11
c.
f(0) = 10•0 -6
f(0) = 0 -6
f(0) = -6
this is my final, this thing is hard
Answer: graph 1:no graph 2:no graph 3: yes graph 4: yes graph 5: no
graph 6: no
Step-by-step explanation:
Answer:
Graph 1 I think is yes because when determining if a function, you do the vertical line test meaning you place an imaginary vertically on the graph and if there is 2 points on the line at once, like for graph 5 or 6, then it isn't a function.
Therefore,
Graph 1: Yes
Graph 2: No
Graph 3: Yes
Graph 4: Yes
Graph 5: No
Graph 6: No
For graph 1, it is way to close to tell if a function or not. So, I would say go with your gut.2 short questions 100 point pls help
So
Common difference
t_3-t_26.8-51.8#4
The formula is
a_n=10n-14Put n=8
a_8=10(8)-14=80-14=66Answer:
3) d = 1.8
4) a₈ = 66
5) a) 138
b) 55
c) [tex]a_n=55n+83[/tex]
Step-by-step explanation:
Question 3
The common difference of an arithmetic sequence is the difference between consecutive terms.
Therefore, to find the common difference, subtract one term from the next:
⇒ d = 5 - 3.2
⇒ d = 1.8
Question 4
Given arithmetic sequence: [tex]a_n=10n-14[/tex]
To find the 8th term, substitute n = 8 into the equation:
[tex]\implies a_8=10(8)-14[/tex]
[tex]\implies a_8=80-14[/tex]
[tex]\implies a_8=66[/tex]
Question 5
General form of an arithmetic sequence:
[tex]a_n=a+(n-1)d[/tex]
where:
[tex]a_n[/tex] is the nth terma is the first termd is the common difference between termsa) The first term is the initial amount Mrs Speas has in her bank account:
a = 138b) The common difference is the amount she deposits each week:
d = 55c) The iterative rule for the amount of money she has after n weeks is:
[tex]\implies a_n=138+(n-1)55[/tex]
[tex]\implies a_n=138+55n-55[/tex]
[tex]\implies a_n=55n+83[/tex]
There are 20 dogs at the park on a busy Saturday.
9 of them are springer spaniels, 7 of them are labs
and 4 of them are bulldogs. What is the
probability that a randomly selected dog in not a
springer spaniel?
We know that 9/20 dogs are spaniels, so 11/20 of the dogs will not be spaniels. That would be your probability in fraction form, but if you need percentage, remember that you can find percentage of something by multiplying the fraction by 100 and evaluating, so [tex](\frac{11}{20} )*100= 0.55*100= 55[/tex]. So, the percentage of dogs that are not spaniels would be 55%.
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Plz Help!!! ID.K !! HELPPPPPPPPPPP!
Answer:30m
Step-by-step explanation:
15m/s x2 is 30m
Find the sale price of a $50 bookshelf that is on sale for 15% off.
Answer:
You will pay $42.50
Step-by-step explanation:
You will pay 50-7.5 which gives you 42.50
Heather's employer pays 80% of her health insurance premium. If the annual premium is $2447.25 and she is paid weekly, how much is deducted from each paycheck?
$1957.80
$75.30
$37.65
$9.41
Answer:
37.65
Step-by-step explanation:
Take 2447.25, divide by 52 (there are 52 weeks in a year) and mutiply by 0.8 (80%), and then you have the answer!
The amount of money deducted from each payback will be $37.65.
Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.
Given that Heather's employer pays 80% of her health insurance premium. If the annual premium is $2447.25 and she is paid weekly.
The payment will be calculated as,
Pay = ( 2447.25 / 52 ) x 0.8
Pay = $37.65
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What is the place value of the first 4 in the decimal 451.48
Answer:
The values of 4 behind the decimal is 4 tenths and ahead of the decimal is 4 hundred.
-NULL
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5 is 7 less than twice a number
translate into algebra
Step-by-step explanation:
2x-7=5
is it shown numbers
What is the slope of a line parallel to the line whose equation is y- x= 5?
O-1
0 1
5.
01
05
Answer:
Slope = -1 . Parallel lines have the same slope. The slope is a coefficient of the x-term.
Step-by-step explanation:
y - x = 5
y = x + 5 slope = 1
The slope of the line parallel to the given line is 1.
What is slope?Slope is a value that describes the steepness and direction of a line. In variable format, it is commonly represented by the letter m.
The slope of a line is also called its gradient or rate of change. The slope formula is the vertical change in y divided by the horizontal change in x, sometimes called rise over run.
Given that the equation of a line y - x = 5, we need to find the slope of the parallel to the same,
Converting the equation in slope-intercept form,
y - x = 5
y = x + 5
Comparing with standard form of the equation of the line y = mx + c, where m is the slope,
Hence, the slope of the given line is 1,
We know that the slopes of the parallel lines are equal.
So, the slope of the asked line is 1.
Hence, the slope of the line parallel to the given line is 1.
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6. The cost C of hiring a taxi is given by the formula C = 4 + 1.25m where m is the number of miles driven. Make a table showing the cost of hiring the taxi to drive 1, 2,3, and 4 s, Dete whether the cost of the taxi is proportional to the number of miles driven. Explain your reasoning.
The ratios are not all equal, we can conclude that the cost of the taxi is not proportional to the number of miles driven.
What is proportional?
A proportion is an equation in which two ratios are set equal to each other. For example, if there is 1 boy and 3 girls you could write the ratio as 1 : 3 (for every one boy there are 3 girls) 1 / 4 are boys and 3 / 4 are girls. 0.25 are boys (by dividing 1 by 4)
To find the cost of hiring a taxi to drive 1, 2, 3, and 4 miles, we can use the formula:
C = 4 + 1.25m
For m = 1, we have:
C = 4 + 1.25(1) = 5.25
For m = 2, we have:
C = 4 + 1.25(2) = 6.5
For m = 3, we have:
C = 4 + 1.25(3) = 7.75
For m = 4, we have:
C = 4 + 1.25(4) = 9
So the table of costs for driving 1, 2, 3, and 4 miles is:
Miles (m) Cost (C)
1 5.25
2 6.5
3 7.75
4 9
To determine whether the cost of the taxi is proportional to the number of miles driven, we can check whether the ratios of cost to distance are equal. If they are, then the cost is proportional to the number of miles driven.
Let's check the ratios:
C(1)/1 = 5.25/1 = 5.25
C(2)/2 = 6.5/2 = 3.25
C(3)/3 = 7.75/3 = 2.58333...
C(4)/4 = 9/4 = 2.25
Hence, the ratios are not all equal, we can conclude that the cost of the taxi is not proportional to the number of miles driven.
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Addition Property of Equality: If m∠ABC=m∠XYZ and m∠PQR=m∠PQR then
Answer:
A
Step-by-step explanation:
substitution
Answer:
A. m∠ABC + m∠PQR = m∠XYZ + m∠PQRStep-by-step explanation:
Addition Property of Equality is:
If a = b, then a + c = b + cApply to the given:
If m∠ABC = m∠XYZ and m∠PQR = m∠PQRthen
m∠ABC + m∠PQR = m∠XYZ + m∠PQRIs the ordered pair (4,3) a solution to the equation below?
y = 2x – 5
no
yes
Answer:
Yes
3 = 2(4) - 5
This is true
Answer:
Yes
Step-by-step explanation:
Since y is 3 and x is 4 plug those into equation
3=2(4)-5
3= 8-5
3=3
Joe bought a box of laundry detergent that contains 195 scoops each load of laundry uses 2 1/2 scoops the box of detergent was $24.96 how much is he paying for each load that was wash
Answer:
195/2.5 to get the amount of loads he can have = 78 loads
now do 24.96 the cost / 78 the amount of loads we get = $.32 per a load
For every 3 nickels, there are 2 dimes. For every 3 dimes, there are 4 quarters. There are 230 coins in the piggy bank. How many are quarters?
Answer:
57.5 quarters
If g(x) = 2(x − 4), find the value of x if g(x) = 20. (2 points) a 32 b 12 c 14 d 10
Answer:
45/56=678_78÷65×56+63×568=466
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We draw a random sample of size 25 from the normal population with variance 2.4. If the sample mean is 13.5, what is a 99% confidence interval for the population mean
Answer:
hgggy7sid8e6r7r6d66yw7e7e56
1 point
Which graph represents the solution to 5+ 83 <3(2x +4) ?
A:
-10 9 8 7 6 5
4
-3 -2 -1 0 1 2 3 4 5 6 7 8 9 10
B:
-10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10
G
-10 -9 -8 7 6 5 4 3 -2 -1 0 1 2 3 4 5 6 7 8 9 10
D:
-10 9 8 7 6 5 4 3 -2 -1 0 1 2 3 4
5
6 7 B 9 10
O
A
B
О
О
О
С
D
Answer:
adc
\Step-by-step explanation:
thanks for ur wait
The graph of the inequality is graph (B)
How to determine the graphThe inequality is given as:
[tex]5 + 8x < 3(2x + 4)[/tex]
Start by expanding the bracket
[tex]5 + 8x < 6x + 12[/tex]
Next, we collect the like terms
[tex]8x - 6x < 12 - 5[/tex]
Evaluate the like terms
[tex]2x < 7[/tex]
Solve for x
[tex]x < 3.5[/tex]
The above means that, the values of x are less than 3.5
Hence, the inequality is graph (B)
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6. The sum of three numbers A, B, and C, is $840. A is 2 times of B and C is half of B. Find the values of each number.
Find the other endpoint of the line segment with the given endpoint and midpoint.
Endpoint (8,-2) and Midpoint (3, 10)
0 (3,6,5)
0 (-2,22)
O (2.5, -6)
0 (0.5, -1.5)
Answer:
Step-by-step explanation:
The endpoint x value of 8 must be reduced by 5 to get to the mid point x value of 3. We reduce 3 by another 5 to get the opposite end x value of -2
The endpoint y value of -2 must be increased by 12 to get to the mid point y value of 10. We increase 10 by another 12 to get the opposite end y value of 22
(-2, 22) endpoint
Hey guy don’t you hate does people that said here is the link to your answer
Answer:
Thats not the way to give an answer..should write it properly
its just similar to..someone asked your name and you say this is the link and you give him the link of the ppt you made of your name
AUTO RACING At a race car driving school,
there are safety requirements.
UR FAST
DRIVING SCHOOL
RULES TO QUALIFY
18 years of age or older
Good physical condition
Under 6 ft 7 in. tall
Under 295 lb
a. Define the variables, and write a system of
inequalities to represent the height and weight
requirements in this situation. Then graph the system.
b. Name one possible solution.
c. Is (50, 180) a solution? Explain.
9514 1404 393
Answer:
a. h < 79; w < 295
b. (h, w) = (60, 280)
c. yes
Step-by-step explanation:
a.We can define h and w to represent the height in inches and the weight in pounds. Then the inequalities representing the given restrictions are ...
h < 79 . . . . . . . . height is less than 6'7"
w < 295 . . . . . . weight is less than 295 pounds
The graph is attached. The solution space is the area where the solutions to the inequalities overlap.
__
b.A 5 ft person weighing 280 pounds would meet the given restrictions.
(h, w) = (60, 280) . . . . is a possible solution
__
c.(50, 180) is a solution. The height of 50 inches is less than 79 inches, and the weight of 180 pounds is less than 295 pounds. (A person with these measurements would be quite obese.)
_____
Additional comments
As a practical matter, healthy 18-year-olds will generally have a height greater than 59 inches and a weight greater than 95 pounds. Less than 3% of the population will be shorter or lighter than that.
"Good physical condition" may require a body mass index within a certain range. This will put additional (rather narrow) limits on height and weight. We have only shown inequalities and a graph for the specific conditions listed in the problem statement.
1 1/2 - 2/3 = ???
Equivalent fractions.
Answer:
5/6
Step-by-step explanation:
1 1/2 - 2/3 =
= 1 3/6 - 4/6
We cannot subtract 4/6 from 3/6, so we borrow the 1 as 6/6 and add it to 3/6 to get 9/6. Now we can subtract 4/6 from 9/6.
= 9/6 - 4/6
= 5/6
LOOK AT ATTACHED IMAGIE! Make a two-column proof showing statements and reasons to prove that triangle ABD is similar to triangle ACB.