Summary
Rita solved a linear equation in one variable and got How many solutions does it's equation have?
How do you know?
Answers
Answer:
i!^dkk
Step-by-step explanation:
more than
Answer:
4 or less
Step-by-step explanation:
because that's how many it has
Related Questions
what is a chord in a circle
Answers
Answer:
A chord is the line segment joining two points on a curve. The endpoints of a chord always lies on the circle.
It has a formula of ;
\(2r sin\frac{\theta}{2}\)
Step-by-step explanation:
Mr. Hooper has a tree in his front yard that grows every year. If the tree was 3 feet tall when he planted it 6 years ago , what is the current height of the tree in terms of f?
A. 3f + 6 feet
B. 6f + 3 feet
C. 3f + 18 feet
D. 6f + 18 feet
Answers
Therefore, the current height of the tree in terms of "f" would be 3f + 6 feet. So the correct answer is A. 3f + 6 feet.
If a wheelchair access ramp has to have an angle of elevation no more than 4.8 degrees and it has to rise 18 inches above the ground, how long must the ramp be?
Answers
The wheelchair access ramp must be 216.09 inches long.
To find the length of the wheelchair access ramp, we can use trigonometry.
The tangent function relates the angle of elevation to the ratio of the opposite side (height) to the adjacent side (length of the ramp).
Let's denote the length of the ramp as "x".
The height of the ramp is given as 18 inches.
Using the tangent function:
tan(angle of elevation) = height/length of the ramp
tan(4.8 degrees) = 18/x
To solve for x, we can rearrange the equation:
x = 18 / tan(4.8 degrees)
Using a calculator to evaluate the tangent of 4.8 degrees:
x = 18 / 0.08331
x= 216.09
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Citizen Bank sent a bank statement to Bane Co. showing an ending balance of $ 1,480. On the bank statement there was a service charge of $20. The bookkeeper of Bane Co. noticed in the reconciliation process a deposit in transit of $200 along with checks outstanding of $300. Complete the reconciliation for Bane assuming a beginning balance of $1,400.
Answers
The reconciliation for Bane can be summarized as,
Adjusted bank balance = $1380.
What is meant by bank Reconciliation?A bank reconciliation is defined as a method which is used to match the balances for a cash account in an organization's records of accounting with the bank statement.
Given that,
Beginning checkbook balance is $1400.
Service charge = $20
Adjusted balance = $1400 - $20 = $1380
Also, given that,
Ending balance on the statement = $1480
Deposit in transit = $200
Checks outstanding = $300
Adjusted balance = $1480 + 200 - 300
= $1380
Hence the adjusted balance is $1380.
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A grocer wants to mix a type of spice which costs £22 per kilogram with another type
which costs £12 per kilogram, to obtain 20 kilograms of mixture which will cost £15 per
kilogram. What quantity of each spice must the grocer take?
Answers
Answer:
60
Step-by-step explanation:
let a = 22 / kg, and b = 12 / kg
a + b = 20 kg
22a + 12b = 15 * 20
12a + 12b = 240
10a = 60
Express 34% as a fraction in simplest form.
34/100
8/25
17/50
3/4
Answers
Did you just state the answer? Because it seems like you just answered the question for us.
help with number 38find the first, fourth, and eighth terms of the sequence
Answers
Given:The sequence is:
\(A(n)=-5\cdot(4^{n-1})\ldots\ldots\ldots\ldots(1)\)We have to find the first,fourth,eighth term of the sequence.
For first term,put n=1 in equation ..(1).
We get,
\(\begin{gathered} A(1)=-5\cdot(4^{1-1}) \\ =-5\cdot(4^0) \\ =-5\cdot1 \\ =-5 \end{gathered}\)For fourth term,put n=4 in equation (1),
We get,
\(\begin{gathered} A(4)=-5\cdot(4^{4-1}) \\ =-5\cdot(4^3) \\ =-5\cdot64 \\ =-320 \end{gathered}\)For eighth term,put n=8 in Equation (1);
We get,
\(\begin{gathered} A(8)=-5\cdot(4^{8-1}_{})_{} \\ =-5\cdot(4^7) \\ =-5\cdot16384 \\ =-81920 \end{gathered}\)Hence, option (d) is correct.
did i get this right????
Answers
Answer and Step-by-step explanation:
We are given the perimeter equation: P = 2w + 2l, where w is width and l is length.
We want to find l. We do this by getting all of the variables to one side of the equation and have l by itself on the other side of the equation.
We start off by subtracting 2w from both sides of the equation.
P - 2w = 2w + 2l - 2w
P - 2w = 2l
Now we divide both sides of the equation by 2.
\(\frac{P-2w}{2} = \frac{2l}{2}\)
\(\frac{P-2w}{2} = l\)
To simplify it further, we can write the equation as such:
\(l = \frac{1}{2}P - w\)
Have a good day!
2. Jamal makes $11.50 an hour and works 37.5 hours a week. Jamal's friend, Trenten,
makes $13.45 an hour and works 32 hours a week. Jamal thinks he should quit his job
and get a job with Trenten.
Does Jamal make more money than Trenten in a week?
O
O
CLEAR ALL
Yes
No
Answers
Solve equation
176 =-4(4 + 6m)
Answers
to solve for m
distribute into parentheses
176 = -16 - 24m
get m on one side
176 + 16 = -24m
192 = -24m
divide by -24
-8 = m
m = -8
Fon baked a cake and ate 1/8 of it she shared the remaining cake equally to her 4 friends whag Frection of the whole cake did each of her friends received?
Answers
Answer:
Each of her friends ate 7/32 of the cake.
Step-by-step explanation:
Given that Fon baked a cake and ate 1/8 of it, and then she shared the remaining cake equally to her 4 friends, to determine what fraction of the whole cake did each of her friends received, the following calculation must be performed:
(8 - 1/8) / 4 = X
(7/8) / 4 = X
(28/32) / 4 = X
7/32 = X
Thus, each of her friends ate 7/32 of the cake.
What is equivalent to 51/9?
Answers
There are three forms of answers for 51/9 and it’s in the image below ↓
If AB = 4 centimeters, which is closest to BC?
Options
4.7 cm
3.4 cm
2.5 cm
2.1 cm
Answers
in my opinion it is 3.4 cm because in any case it is a right triangle,then you can see whith the naked eye that AB is longer
URGENT
Factor.
4m² - 52m + 88
Answers
Answer:
\(4(m - 11)(m - 2)\)
Step-by-step explanation:
\(4 {m}^{2} - 52m + 88\)
\( = > 4( {m}^{2} - 13m + 22)\)
\( = > 4( {m}^{2} - 11m - 2m + 22)\)
\( = > 4(m(m - 11) - 2(m - 11))\)
\( = > 4(m - 11)(m - 2)\)
A residential community was polling households to find out whether they wanted to get their TV signal from a satellite or cable. The results are shown in the Venn diagram.
A circle labeled satellite 55 overlaps a circle labeled cable 75. Overlap is labeled 12. 4-column table with 3 rows. First column has no label with entries satellite, not satellite, total. Second column is cable with entries blank, 51%, blank. Third column is not cable with entries a, b, blank. Fourth column is labeled total with entries blank, blank, 100%.
What are the values of a and b in the relative frequency table for the survey results? Round answers to the nearest percent.
a = 82%, b = 3%
a = 38%, b = 50%
a = 38%, b = 3%
a = 93%, b = 19
Answers
The correct answer is:
a = 43%
b = 88%
To determine the values of a and b in the relative frequency table, we need to analyze the information provided in the Venn diagram and the given table.
From the Venn diagram, we can gather the following information:
The circle labeled "satellite" has a value of 55.
The circle labeled "cable" has a value of 75.
The overlap between the two circles is labeled as 12.
Using this information, we can complete the table:
First column - "Satellite":
Entries: Satellite, Not satellite, Total
Total: 55 (as given in the Venn diagram)
Second column - "Cable":
Entries: Blank, 51%, Blank
To find the value for the "Cable" entry, we need to subtract the overlap (12) from the total number of cable users (75).
Cable: 75 - 12 = 63
Therefore, the entry becomes: Blank, 51%, Blank
Third column - "Not Cable":
Entries: a, b, Blank
To find the value for "a," we subtract the overlap (12) from the total number of satellite users (55).
a: 55 - 12 = 43
To find the value for "b," we subtract the overlap (12) from the total number of households (100).
b: 100 - 12 = 88
Therefore, the entries become: 43, 88, Blank
Fourth column - "Total":
Entries: Blank, Blank, 100%
The total number of households is given as 100% (as stated in the question).
Therefore, the values of a and b in the relative frequency table are:
a = 43% (rounded to the nearest percent)
b = 88% (rounded to the nearest percent)
Hence, the correct answer is:
a = 43%
b = 88%
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Help me with this math question. Please no links.
Answers
I cant read it, the picture is blurry
Write a sine function with an amplitude of 5, a period of
Pi/8,and a midline at y = 7.
f(x) = 4sin(8x) + 5
f(x) = 5sin(16)+7
f(x) = 5sin(16x) + 4
f(x) = 4sin(8x) + 7
Answers
Answer:
\(\textsf{B)} \quad f(x) = 5 \sin (16x) + 7}\)
Step-by-step explanation:
The sine function is periodic, meaning it repeats forever.
Standard form of a sine function\(\boxed{f(x) = A \sin (B(x + C)) + D}\)
where:
A is the amplitude (height from the midline to the peak).2π/B is the period (horizontal distance between consecutive peaks).C is the phase shift (horizontal shift - positive is to the left).D is the vertical shift (y = D is the midline).Given values:
Amplitude, A = 5Period, 2π/B = π/8Phase shift, C = 0Vertical shift, D = 7Calculate the value of B:
\(\dfrac{2\pi}{B}=\dfrac{\pi}{8}\implies 16\pi=B\pi\implies B=16\)
Substitute the values of A, B C and D into the standard formula:
\(f(x) = 5 \sin (16(x + 0)) + 7\)
\(f(x) = 5 \sin (16x) + 7\)
Therefore, the sine function with an amplitude of 5, a period of π/8, and a midline at y = 7 is:
\(\Large\boxed{\boxed{f(x) = 5 \sin (16x) + 7}}\)
Val's whole-house central air conditioner uses 2,500 watts when running. Val runs the AC 5 hours per summer day. Electricity costs (12 cents)/(1 kilowatt-hour). How much does Val's AC cost to run for a summer month of 30 days?
Answers
The total cost to run Val’s AC costs for a summer month of 30 days will be $67.5.
What is the unitary method?The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.
Quantity of electricity used in kilowatts is;
1000 watts = 1 kilowatts
2,500 watts = 2.5 kilowatts
Given that Number of hours Val runs AC per day = 5 hours
Number of days = 30 days
Cost of electricity = $0.18 kilowatts per hour
The Cost of Val’s AC to run for a summer month of 30 days can be calculated as;
= Quantity of electricity used × Number of hours Val runs AC per day × Number of days × Cost of electricity
= 2.5 × 5 × 30 × 0.18
= $67.5
The total cost to run Val’s AC costs for a summer month of 30 days will be $67.5.
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Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s). Solve the given system of equations 4x+5y=10 -x-8=3y
Answers
Answer:
\(4x + 5y = 10 - - - (a) \\ - x - 8 = 3y \\ - x - 3y = 8 \\ x + 3y = - 8 - - - (b) \\ 4 \times (b) - (a) : \\ = > 0x + 7y = - 42 \\ y = - 6 \\ x - 21 = - 8 \\ x = 13 \\ { \boxed{x = 13}} \\ { \boxed{y = - 6}}\)
Answer:(10,-6)
Step-by-step explanation:
https://app.edmentum.com/mimetex/mimetex?\fs3%5Cbegin%7Barray%7D%7BrclC30C30C30C30C30%7D%204x%20%5C%20+%20%5C%205y%20&=&%2010%20%5C%5C%20-4x%20%5C%20-%20%5C%2012y%20&=&%2032%5C%5C%20%5Chline%200%20%5C%20-%20%5C%207y%20&=&%2042%5C%5C%20y%20&=&%20-6%20%5Cend%7Barray%7D
https://app.edmentum.com/mimetex/mimetex?\fs3%5Cbegin%7Barray%7D%7BrclC30C30C30C30C30%7D%204x%5C%20+%20%5C%205y%20&=&10%20%5C%5C%204x%5C%20+%20%5C%205(-6)%20&=&10%20%5C%5C%204x%5C%20-%20%5C%2030%20&=&10%20%5C%5C%204x%20&=&%2040%20%5C%5C%20x%20&=&%2010%20%5Cend%7Barray%7D
Twice the sum of three and a number is 30. Find the number
Answers
9514 1404 393
Answer:
2(x +3) = 3012Step-by-step explanation:
When x represents the number, "the sum of 3 and a number" is (x+3). Twice that sum is 2(x+3). "Is 30" means this expression is equal to 30:
2(x +3) = 30 . . . . an equation for the given conditions
__
We can solve this equation by dividing by 2:
x + 3 = 15
x = 12 . . . . . . subtract 3
The number is 12.
When loaded with bricks, a lorry has a mass of 11600 kg. If the mass of the bricks is three times that of the empty lorry, find the mass of the bricks.
Answers
Answer:
8700kg
Step-by-step explanation:
b = mass of bricks
l = mass of lorry
b+l = total mass = 11600kg
b = 3l ==> l = b/3
substitute: b + b/3 = 11600
multiply every term by 3 to get rid of denominator: 3b + b = 34800
simplify and solve: 4b = 34800 ==> b = 8700
check: l = 8700/3 = 2900
2900 + 8700 = 11600? YES
What is the answer I need help and I can’t seem to figure it out
Answers
The new dimension of the rectangular field are 45 ft by 120ft.
How to find the new dimensions of the field?If the field has originally dimensions length L and width W, and we apply a scale factor K, then the new dimensions of the rectangle are:
lenght = K*L
width = K*W
In this case the original dimensions are:
L = 30ft
W = 80ft
And the scale factor is K = 1.5, then the new dimensions are:
L' = 1.5*30ft = 45ft
W' = 1.5*80ft = 120ft
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What is the equation of the line that passes through the points (-1, 3) and (1, 11)? (5 points)
4x - y = 1
x - 4y = -13
4x - y = -7
4x + y = 1
Answers
Answer:
4
Step-by-step explanation:
I am pretty sure its that one
In the right triangle shown, mZA = 45° and AB = 12. How long is BC?
Answers
Answer:
I think BC is 45°÷2 Or 12÷2
Step-by-step explanation:
so the answer is 15° or 6
I’ll mark you brainliest .
It’s either B,C,or D
Answers
Answer:
I believe it may be C or D.
C and D are the exact same, but I don't think it is B, seeing as it is an absolute value function. If I'm wrong, please forgive me.
Step-by-step explanation:
Ivanna drove 696 miles in 12 hours. At the same rate, how many miles would she drive in 7 hours?
Answers
Answer:
406
Step-by-step explanation:
We need to find the unit rate or how many miles can they drive in 1 hour. So we do 696/12 which is 58. So we have 58 miles in 1 hour. Now we multiply the number of desired hours, 7 and multiply it by 696. Which is 406
Keiko, Chang, and Abdul sent a total of 109 text messages over their cell phones during the weekend. Keiko sent 7 fewer messages than Chang. Abdul sent 4
times as many messages as Keiko. How many messages did they each send?
Answers
9514 1404 393
Answer:
Keiko: 17Chang: 24Abdul: 68Step-by-step explanation:
Let c represent the number of messages sent by Chang. Then Keiko sent (c-7) messages, and Abdul sent 4(c-7) messages. The total number sent was ...
c + (c -7) +4(c -7) = 109
6c -35 = 109 . . . . . . . . . . simplify
6c = 144 . . . . . . . . . . . add 35
c = 24 . . . . . . . . . . . divide by 6
c-7 = 17
4(c-7) = 68
Keiko sent 17, Chang sent 24, and Abdul sent 68 text messages.
Inga is solving 2x2 + 12x – 3 = 0. Which steps could she use to solve the quadratic equation? Select three options. 2(x2 + 6x + 9) = 3 + 18 2(x2 + 6x) = –3 2(x2 + 6x) = 3 x + 3 = Plus or minus StartRoot StartFraction 21 Over 2 EndFraction EndRoot 2(x2 + 6x + 9) = –3 + 9
Answers
The step that Inga could use to solve the quadratic equation is;
2(x² + 6x + 9) = 18 + 3.
How to solve quadratic equations?The solution to the quadratic equation is calculated as follows;
2x² + 12x - 3 = 0
Add 3 to both sides to get;
2x² + 12x = 3
Divide through by 2 which is the coefficient of x² to get;
x² + 6x = ³/₂
Square half of the coefficient of x, and then add it both sides of the equation to get;
(x + 3)² = ³/₂ + 3²
x² + 6x + 9 = 9 + ³/₂
2(x² + 6x + 9) = 18 + 3
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PLEASE AM N MDDLE SCHOOL!
Answers
(If you want an explanation, just ask in the comments and I’ll provide)
You have a recipe for crepes. The recipe makes 8 crepes. You need 100 crepes for a school event. Increase the recipe proportionally to make 100 crepes.
Answers
first let's find the ratio, how much we need to increase the recipe
the recipe is for 8 crepes, so if we divide it by 8, will be for 1 crepe
and then if we multiply it by 100 will be for 100 crepes, so the ratio is:
\(\begin{gathered} x\cdot\frac{100}{8} \\ or\text{ x}\cdot\frac{25}{2} \end{gathered}\)x: the value of the recipe.
So now all we need to do is multiply the recipe by 25/2
Flour
original: 1 cup
for 100 crepes:
1*25/2 = 25/2
25/2 is 12 1/2 so Tile 1
Eggs
original:2
for 100 crepes:
2*25/2 = 25 so Tile 2
Milk
original: 1/2 cups
for 100 crepes:
1/2*25/2= 6 1/4 so Tile 3a
Water
Original: 1/3 cups
for 100 crepes:
1/3*25/2= 4 1/6 So Tile 4
Salt
Original: 1/4 teaspoon
for 100 crepes:
1/4*25/2= 3 1/8 so Tile 5