Answer:
See below
Step-by-step explanation:
Let's check:
34*1/2 does equal 17, so Yes
51*2/3 does equal 34, so Yes
34*3/8 does not equal 12, so No
300*1/9 does not equal 34, so No
4.1.3 How many solutions are there ?
Worksheet
A system of two linear equations in two unknowns have: 4 possible solutions (One, two, Infinitely many and No solutions).The correct options are options C, D, E, F.
One Solution (C): If the two lines intersect at a single point, the system has a unique solution.
Two Solutions (D): This is not a typical outcome for a system of two linear equations in two unknowns. Usually, there is either one solution, no solution, or infinitely many solutions. However, it's worth noting that technically, if the two equations represent the same line, every point on that line is a solution, and you could argue for "two solutions" in that sense.
Infinitely Many Solutions (E): If the two lines are coincident (overlapping), there are infinitely many points of intersection, resulting in infinitely many solutions.
No Solution (F): If the two lines are parallel and distinct, they will never intersect, indicating no solution.
So, C, D, E, and F are correct outcomes
Complete and correct question:
How many possible solutions can a system of two linear equations in two unknowns have? Select all that apply.
A. Four
B. Three
C. One
D. Two
E. Infinitely many solutions
F. No solution
Which figure is similar to the parallelogram? (Figures may not be drawn to scale.) A parallelogram has side lengths of 8 and 5.8. Angles are 68 degrees and 112 degrees. A parallelogram has side lengths of 4 and 4.8. Angles are 68 degrees and 112 degrees. A rectangle has a length of 6 and width of 4.8. All angles are 90 degrees. A parallelogram has side lengths of 4 and 2.9. Angles are 48 degrees and 132 degrees. A parallelogram has side lengths of 4 and 2.9. Angles are 68 degrees and 112 degrees.
Answer:
d
Step-by-step explanation:
in the following equation, a qnd b are both integers. a(3x-8) = b- 18x
what is the value of a?
what is the value of b?
Answer:
Step-by-step explanation:
The value of a is -6, and the value of b is 48.
To solve the equation a(3x-8) = b - 18x for the values of a and b, we need to distribute the 'a' to both terms inside the parentheses and then compare coefficients from both sides of the equation.
Firstly, we distribute:
a(3x) - a(8) = b - 18x3ax - 8a = b - 18xNow, since the equation should hold true for all values of 'x', the coefficients of 'x' on both sides must be equal, and the constant terms should also be equal. We can set up two separate equations as follows:
3a = -18 (from comparing coefficients of 'x')-8a = b (since there is no 'x' term on the right side)Solving these two equations, we find that:
a = -18 / 3a = -6b = -8(-6)b = 48So, the value of a is -6, and the value of b is 48.
A quiz consists of two true-false questions and four multiple-choice question with three choices each. How many different sets of answers are there?
In this high school-level mathematics combinatorics question, the total number of different sets of answers for a quiz comprised of two true-false questions and four multiple-choice questions (each with three options) is 324.
Explanation:The subject of this question is combinatorics, a branch of mathematics concerning the study of counting, both as a means and an end in obtaining results, and certain properties of finite structures. Considering first the true-false questions, for each question there are 2 possible answers - true or false. So, for two questions, it would be 2x2 which equals 4 possibilities. Now, moving onto the multiple-choice questions, each with three choices (let's say A, B or C), for four such questions it would be 3x3x3x3 which equals 81 possibilities. To find the total possible answer combinations, multiply the results together: 4 (from true/false) x 81 (from multiple choice) = 324. Therefore, there are 324 different sets of answers for this quiz.
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To calculate the number of different sets of answers for a quiz with two true-false questions and four multiple-choice questions, you multiply the possibilities for each question type together, resulting in 324 different sets of answers.
Explanation:To find the number of different sets of answers for a quiz with two true-false questions and four multiple-choice questions with three choices each, we need to consider the principle of counting. For each true-false question, there are 2 possible answers (True or False). For each multiple-choice question, there are 3 possible answers. To find the total number of different sets of answers, we multiply the number of possible answers for each question together.
For the true-false questions: 2 × 2 = 4 possible combinations.
For the multiple-choice questions: 3 × 3 × 3 × 3 = 81 possible combinations.
Therefore, the total number of different sets of answers is:
4 (from the true-false questions) × 81 (from the multiple-choice questions) = 324 different sets of answers.
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What is the solution to log Subscript 5 Baseline (10 x minus 1) = log Subscript 5 Baseline (9 x + 7) x = six-nineteenths x = eight-nineteenths x = 7 x = 8
Answer:
x=8
Step-by-step explanation:
on edge
Answer:
8
Step-by-step explanation:
on edge
Martha estimated there were 80 marbles in a jar for a contest. The actual number of marbles in the jar was 102. What was the percent error of Martha's estimation?
Martha's percent error in estimating the number of marbles in the jar is 21.57%, calculated by finding the difference between her estimate and the actual amount, dividing by the actual amount, and then multiplying by 100.
Explanation:
To calculate Martha's percent error in estimating the number of marbles in a jar, we first determine the difference between the estimated amount and the actual amount.
Actual number of marbles: 102
Estimated number of marbles: 80
Difference: 102 - 80 = 22
Next, we use this difference to find the percent error by dividing the difference by the actual number and then multiplying the result by 100 to get a percentage:
Percent Error = (Difference / Actual number) × 100
Percent Error = (22 / 102) × 100
Percent Error = 0.2157 × 100
Percent Error = 21.57%
Thus, Martha's percent error in her estimation of the number of marbles is 21.57%.
A school recorded the weights of enrolled males and females.
Which statement BEST compares the distributions?
A) Females weighed more than males on average, but males had more variability than females.
B) Females weighed more than males on average, and males had more variability than males.
C) Males weighed more than females on average, but females had more variability than males.
D) Males weighed more than females on average, and males had more variability than females.
Answer:
D
Step-by-step explanation:
By the graph, males had the highest weight, females stopped around 90 kg, males went well over that. Males did weigh more on average, being around 70, with the females around 50-60
Answer:
d
Step-by-step explanation:
Lily saved 16 coins. She saved ten-can and one-dollar coins only. If she had $5.20, how many ten-cent coins did she have?
____ten-cent coins
Answer:
12
Step-by-step explanation:
Let d represent the number of dimes Lily saved. Then the value of her coins in cents is ...
10d +100(16-d) = 520
-90d +1600 = 520 . . . . . eliminate parentheses, collect terms
-90d = -1080 . . . . . . . . . . subtract 1600
d = -1080/-90 = 12 . . . . . divide by the coefficient of d
Lily has 12 ten-cent coins.
What are complementary angles
Answer:
Complementary angles are two angles that add up to 90 degrees.
Example: 45 + 45 = 90 are complimentary
60 + 30 = 90 are complimentary
Using the information given, select the statement that can deduce the line segments to be parallel. If there are none, then select none.
When m of angle 2 = m of angle 3
Answer:
None.
Step-by-step explanation:
You cannot deduce any segments to be parallel with the given information.
Answer: none
Step-by-step explanation:
The graph of the equation x^2+6x+y^2-16y=-9 is a circle. Choose True or False for each statement
A. The center of the circle is (3,-8). (true or false?)
B. The circle is tangent to the x-axis. (true or false?)
C. The circle has a radius of 64. (true or false?)
Answer:
see the explanation
Step-by-step explanation:
we have
[tex]x^2+6x+y^2-16y=-9[/tex]
Convert the equation of the circle in center radius form
Group terms that contain the same variable
[tex](x^2+6x)+(y^2-16y)=-9[/tex]
Complete the square twice. Remember to balance the equation by adding the same constants to each side
[tex](x^2+6x+9)+(y^2-16y+64)=-9+9+64[/tex]
[tex](x^2+6x+9)+(y^2-16y+64)=64[/tex]
Rewrite as perfect squares
[tex](x+3)^2+(y-8)^2=8^2[/tex]
The center of the circle is (-3,8)
The radius of the circle is 8 units
Verify each statement
A. The center of the circle is (3,-8).
False
The center of the circle is (-3,8)
B. The circle is tangent to the x-axis
True
The circle is tangent to x=5 and x=-11 and is tangent to y=0 and y=16
Remember that y=0 is the x-axis
C. The circle has a radius of 64
False
The radius of the circle is 8 units
You deposit $1500 in an account that pays 7% annual interest. Find the balance after 2 years when the interest is compounded daily.
A = $ 1,721.28
A = P + I where
P (principal) = $ 1,500.00
I (interest) = $ 221.28
With daily compounding, $1500 at 7% annual interest for 2 years yields approximately $1721.79. Compound interest accelerates growth.
To find the balance after 2 years with daily compounding interest, we'll use the formula for compound interest:
[tex]\[A = P\left(1 + \frac{r}{n}\right)^{nt}\][/tex]
Where:
[tex]- \(A\) is the amount of money accumulated after \(t\) years, including interest.- \(P\) is the principal amount (the initial amount of money).- \(r\) is the annual interest rate (in decimal).- \(n\) is the number of times that interest is compounded per unit \(t\).- \(t\) is the time the money is invested for, in years.[/tex]
Given:
[tex]- Principal \(P = $1500\)\\- Annual interest rate \(r = 7\% = 0.07\) (in decimal)\\- Compounded daily, so \(n = 365\) (days in a year)- Time \(t = 2\) years[/tex]
Let's calculate the balance [tex]\(A\):[/tex]
[tex]\[A = 1500\left(1 + \frac{0.07}{365}\right)^{365 \times 2}\]\[A \approx 1500\left(1 + \frac{0.07}{365}\right)^{730}\]Now, let's compute the value:\[A \approx 1500 \times (1 + 0.0001917808)^{730}\]\[A \approx 1500 \times (1.0001917808)^{730}\]\[A \approx 1500 \times 1.15183587\]\[A \approx 1727.7538\][/tex]
The corrected calculation gives a balance of approximately $1727.75. This is very close to the initial answer of $1727.67. The slight discrepancy could arise from rounding differences or calculation precision. However, it seems the correct answer is indeed very close to $1727.67, as initially calculated.
The exact average of a set of six test scores is 92. Five of these scores are 90, 98, 96, 94, and 85. What is the other test score?
Answer:
89
Step-by-step explanation:
92 = (90 + 98 + 96+ 94 + 85 + x )/6
92*6 = 90 + 98 + 96+ 94 + 85 + x
552 - (90 + 98 + 96+ 94 + 85) = x
x = 89
A line passes through the points(-9,-9) and (-6,-6)
Fine the slope of the line
Answer:
Slope of the line = 1
Step-by-step explanation:
A line with two points, we are asked to find the slope
We are using the formula
m = (y_2 - y_1) /( x_2 - x_1)
We are provided with some points
( -9 , -9) ( -6 , -6)
x_1 = -9
y_1 = -9
x_2 = -6
y_2 = -6
Insert the values into the equation
m = (y_2 - y_1) / (x_2 - x_1)
m = ( -6 - (-9)) / ( -6 - (-9))
Hint: - * - = +
m =( -6 + 9) / ( -6 + 9)
= 3 / 3
= 1
Slope m = 1
Therefore, the slope of the line = 1
The sum of two numbers is -1. when twice the first number in four times the second number are added, it equals -10. what are the two numbers?
Answer:
3 and -4
Step-by-step explanation:
First, you write out each statement as an equation:
x + y = -1
2x + 4y = -10
Next, rewrite one equation so only x is on one side of the equation, and plug it into the other equation, and solve for y:
x = -y - 1
2 (-y - 1) + 4y = -10
-2y - 2 + 4y = -10
2y = -8
y = -4
Plug the found value for y into the original equation and solve for x:
x + y = -1
x - 4 = -1
x = 3
Plug both values into the second equation to check your work:
2x + 4y = -10
2(3) + 4(-4) = -10
6 - 16 = -10
-10 = -10
Final answer:
The two numbers in question are 3 and -4. These values are obtained by solving a system of equations derived from the given conditions.
Explanation:
The sum of two numbers is -1. When twice the first number and four times the second number are added, it equals -10. To find these two numbers, we can set up a system of equations.
Step 1: Establish equations
Let the first number be x and the second number be y. According to the problem, we have:
x + y = -1 (Equation 1)
2x + 4y = -10 (Equation 2)
Step 2: Solve the system
A simple method to solve these equations follows. First, multiply Equation 1 by -2 to get:
-2x - 2y = 2 (Multiply Equation 1 by -2)
Add this new equation to Equation 2:
(2x + 4y) + (-2x - 2y) = -10 + 2
2y = -8
y = -4
Now substitute y = -4 back into Equation 1 to find x:
x + (-4) = -1
x = -1 + 4
x = 3
Therefore, the two numbers are 3 and -4.
10. Describe how the graph of each function compares with the graph of the parent function
y =log3 (x-5)+3
A. To the right 5 and down 3
B. To the left 5 and up 3
C. To the right 5 and up 3
D. Down 5 and to the right 3
find the volume for the image
Answer:
[tex] \frac{2}{5} = \frac{30}{x} \\ 2x = 30 \times 5 \\ \frac{2x}{2} = \frac{150}{2} \\ x = 75 {m}^{2} [/tex]
If 75% of the budget is $1200 what is the full budget
Answer:
$1600 is the full budget
Step-by-step explanation:
1200/3=400
400x4=1600
Answer:
$1600
Step-by-step explanation:
1200 is 3/4 of the budget, so just divide 1200 by 3/4.
find x and y !!!!! (geometry)
The value of x = 11 and y = 11√3.
Solution:
The triangle is right triangle.
θ = 30° and hypotenuse = 22
The value of sin 30° = [tex]\frac{1}{2}[/tex]
The value of cos 30° = [tex]\frac{\sqrt{3} }{2}[/tex]
Using trigonometric formulas,
[tex]$\sin\theta=\frac{\text{Opposite side}}{\text{Hypotenuse}}[/tex]
[tex]$\sin30^\circ=\frac{x}{\text{22}}[/tex]
[tex]$\frac{1}{2} =\frac{x}{\text{22}}[/tex]
Do cross multiplication, we get
22 = 2x
Switch the sides
2x = 22
Divide by 2, we get
x = 11
[tex]$\cos\theta=\frac{\text{Adjacent side}}{\text{Hypotenuse}}[/tex]
[tex]$\cos30^\circ=\frac{y}{\text{22}}[/tex]
[tex]$\frac{\sqrt{3} }{2} =\frac{y}{\text{22}}[/tex]
Do cross multiplication, we get
[tex]22\sqrt 3 = 2y[/tex]
Switch the sides
[tex]2y=22\sqrt 3[/tex]
Divide by 2, we get
[tex]y= 11\sqrt3[/tex]
Hence the value of x = 11 and y = 11√3.
24 decreased by the quotient of a number and 6 is -5
Answer: X/6 -24 = -5
Step-by-step explanation:
amanda is 3 years older than brantley and carlos is twice as old as amanda
Answer:
what is the question??
it took Simon 33 minutes to run 5.5 miles. did he run faster or slower than 1 mile every 5 minutes how can you tell
I need help with number 7 please.
Answer:
lengths, CW from lower left vertical: 2, 5, 6, 3, 2, 2, 1, 5, 4perimeter: 30 mStep-by-step explanation:
The figure appears to be drawn roughly to scale, so that fact can offer clues.
The triangles both have hypotenuses of 5. The only integer lengths for sides that will give a hypotenuse of 5 are side lengths 3 and 4. Right triangles with side lengths 3 and 4 will have an area of (1/2)(3)(4) = 6.
The rectangle at lower left will not have a side length of 3, so its width is 4. Since its area is 8 (width × height), the height of it must be 2. (The rectangle dimensions must be factors of 8.)
The vertical side of the left triangle is then 3. It appears to be divided so the upper segment (the side of the rectangle of area 6) is 1 and the lower segment (part of the right triangle vertical side) is 2.
Then the vertical side of the right triangle is 4, and its horizontal side (left half of the bottom of the upper rectangle) is 3.
Since the height of the upper rectangle is 1, its width must be 6. Then the little tab hanging down on the right must be 2 by 2 (for an area of 4).
Altogether, we have found the lengths to be as marked in the attachment.
___
Summary
The perimeter lengths, CW from the lower left vertical, are ...
2, 5, 6, 3, 2, 2, 1, 5, 4 . . . . meters
The perimeter is their total: 30 m.
PLEASE HELP QUICKLY!!!! What is the equation of the line with a slope of -3/4 that goes through the point (−6, 3)?
Answer:
[tex]y=-\frac{3}{4}x-\frac{3}{2}[/tex]
or
[tex]y=-0.75x-1.5[/tex]
Step-by-step explanation:
step 1
Find the equation of the line in point slope form
[tex]y-y1=m(x-x1)[/tex]
we have
[tex]m=-\frac{3}{4} \\point\ (-6,3)[/tex]
substitute
[tex]y-3=-\frac{3}{4}(x+6)[/tex]
step 2
Convert to slope intercept form
[tex]y=mx+b[/tex]
we have
[tex]y-3=-\frac{3}{4}(x+6)[/tex]
Isolate the variable y
[tex]y-3=-\frac{3}{4}x-\frac{9}{2}[/tex]
[tex]y=-\frac{3}{4}x-\frac{9}{2}+3[/tex]
[tex]y=-\frac{3}{4}x-\frac{3}{2}[/tex]
If f(x) = 8 – 10x and g(x) = 5x + 4, what is the value of (fg)(–2)?
Answer:
68
Step-by-step explanation:
fg(-2) is equal to f(g(-2)). g(-2)=-6. f(-6)=68
Answer:
g(-2)= 5(-2) + 4 = -10 + 4= -6
f(-6) = 8 - 10(-6)= 8 + 60 = 68
Step-by-step explanation:
A truck driver is paid by the number of miles driven. If a truck driver earns $0.48 per mile, how many miles must the trucker drive in 1 hour to earn $17.00 per hour? Round to the nearest mile.
To earn $17.00 per hour at a rate of $0.48 per mile, the truck driver needs to drive approximately 35 miles per hour.
Explanation:To calculate the number of miles the truck driver must travel to earn $17.00 per hour at a rate of $0.48 per mile, one would set up a math problem to solve for the unknown variable, which in this case is the number of miles. We can accomplish this by dividing the desired total wage by the wage earned per mile.
Therefore: 17 ÷ 0.48 = 35.42. Since we cannot have fraction of miles and we must round up or down, we round to the nearest whole number as per the question's instructions, the truck driver must drive approximately 35 miles in one hour to earn $17.00.
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Phillip has $2,000 and spends $23.75 on supplies. He divides the remaining amount equally among his employees. How much does each employees receive
Each employees receive an amount of $1976.25 / n
Explanation:
Amount of money that Philip has,(we can represent as A) = $2000
Spends, (We can represent as s) = $23.75
Divides the rest equally among each employees.
Let the number of employees = n
To find the amount of money
Money left = A - s
= $2000 - $23.75
= $1976.25
Each employees receive = $1976.25 / n
Therefore ,Each employees receive an amount of $1976.25 / n.
To win a bowling trophy, you need a 3 game total score of at least 500.on the first two games,your scores are 183 and 165.what score do you need on game 3?
Answer:
Step-by-step explanation:152
You would need 152 points on game 3
Which statement about the point (2,0) is true?
Answer:
It is on the x - axis
Step-by-step explanation:
Point (2, 0) lie on the x axis
Answer:
It is on the X axis
Step-by-step explanation:
The horizontal line is the x axis and the x coordinate is always given first (x, y) or in this case (2, 0)
I need this answer please answer really fast!!!