The values of a and b are 1/2 and 7/4 respectively. The sum of a and b is 9/4.
Explanation:To find the values of a and b, we need to solve the system of equations formed by the given lines. Let's start by substituting the given coordinates (1, 2) into the equations:
x = (1/4)y + a -> 1 = (1/4)(2) + a -> 1 = 1/2 + a -> a = 1 - 1/2 = 1/2
y = (1/4)x + b -> 2 = (1/4)(1) + b -> 2 = 1/4 + b -> b = 2 - 1/4 = 7/4
Therefore, a = 1/2 and b = 7/4. To find the sum of a and b, we add them: a + b = 1/2 + 7/4 = 2/4 + 7/4 = 9/4
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is the line through points p(-3,-2) and Q(2,3) perpendicular to the line through points R(10,-1) and S(15,-6)? explain.
The line through the points p(-3,-2) and Q(2,3) is perpendicular to the line through points R(10,-1) and S(15,-6) because the product of their slopes is -1
C: Yes, their slope have product -1
Two lines are perpendicular if the products of their slope equals -1
The slope(m) of a line passing through the points [tex](x_1, y_1)[/tex] and [tex](x_2, y_2)[/tex] is given as:
[tex]m = \frac{y_2-y_1}{x_2-x_1}[/tex]
For the line PQ:
P(-3, -2) and Q(2, 3)
[tex]m_1 = \frac{3-(-2)}{2-(-3)} \\\\m_1 = \frac{3+2}{2+3} \\\\m_1 = \frac{5}{5} \\\\m_1 = 1[/tex]
For the line RS:
R(10,-1) and S(15,-6)
[tex]m_2 = \frac{-6-(-1)}{15-10} \\\\m_2 = \frac{-6+1}{5} \\\\m_2 = \frac{-5}{5} \\\\m_2 = -1[/tex]
[tex]m_1m_2 = -1(1) \\\\m_1m_2 = -1[/tex]
Since the products of the slopes of line PQ and RS is -1, the line PQ is perpendicular to the line RS
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A grocer sells eggs only in boxes of 8. If he starts with 175 eggs and fills as many boxes as he can with eggs, how many eggs will he have left over?
After dividing the total number of eggs (175) by the number of eggs per box (8), the grocer will have 7 eggs left over once 21 boxes are filled.
Explanation:To solve how many eggs the grocer will have left over, we need to divide the total number of eggs (175) by the number of eggs in a box (8).
Divide 175 by 8 which equals 21 with a remainder of 7.Therefore, the grocer can fill 21 boxes with 8 eggs each.The grocer will have 7 eggs left over.This calculation involves basic division and understanding remainders, which are common math skills taught in middle school.
The grocer starts with 175 eggs and sells them in boxes of 8. To find the number of boxes he can fill, we divide the total number of eggs by the number of eggs per box: 175 / 8 = 21.875. Since the grocer can only sell whole boxes, he can fill 21 boxes. To find the number of eggs left over, we subtract the number of filled boxes from the total number of eggs: 175 - (21 * 8) = 175 - 168 = 7 eggs left over.
A geologist had two rocks on a scale that weighed 3.3 kilograms together. Rock A was 0.1 of the total weight. How much did rock A weigh?
Answer:
Rock A had a weight of 0.33Kg
Step-by-step explanation:
Let X: the weight of rock A and Y: the weight of rock B. The information available suggests that:
X + Y = 3.3 [Eq. one]
X = 0.1 (X + Y) [Eq. two]
Considering equation 2, we have that X = 0.1X + 0.1Y, which produces:
0.9X = 0.1Y ------------> 9X = Y. Substituting this last result in equation 1, you have:
X + 9X = 3.3, that is,
10X = 3.3 --------> X = 3.3 / 10 = 0.33Kg. As Y = 9X, then, Y = 9 (0.33) = 2.97Kg
Since September, Mrs.Bishop has wriiten a check for $178.23 and made a deposit of $363.82. Her balance was $666.00. Which amount should Mrs.Bishop's checkbook balance show now?
The Earth is approximately 2 × 107 km from Venus at its closest approach. The Earth is also about 4 × 1013 km from Proxima Centauri, a star. Which of the following is true?
A.
The distance from Earth to Proxima Centauri is approximately two million times the distance from Earth to Venus.
B.
The distance from Earth to Proxima Centauri is approximately two trillion times the distance from Earth to Venus.
C.
The distance from Earth to Proxima Centauri is approximately two billion times the distance from Earth to Venus.
D.
The distance from Earth to Proxima Centauri is approximately two thousand times the distance from Earth to Venus.
Answer:
D. The distance from Earth to Proxima Centauri is approximately two million times the distance from Earth to Venus.
Step-by-step explanation:
Sophie is playing a game called circles and stars. Sophie rolls one number cube and gets the number six. Sophie draws six circles on her paper. Sophie rolls the number cube again and gets the number three. Sophie draws three stars in each of the six circles. Sophie writes 6×3 on her paper. Sophie plays the game again. Sophie rolls one number cube and gets the number. Sophie draws three circles on her paper. Sophie tools the number cube again and gets the number six. Sophie draws six stars in each of the three circles. Sophie writes 3×6 on her paper. Sophie says she got the total number of stars both times! Is Sophie correct?
Sophie is not correct in her statement. The total number of stars is the same in both scenarios, which is 18.
Explanation:Sophie is not correct in her statement. Let's calculate the total number of stars in each scenario:
Scenario 1: Sophie drew 6 circles, and in each circle, she drew 3 stars. So the total number of stars is 6 × 3 = 18 stars.
Scenario 2: Sophie drew 3 circles, and in each circle, she drew 6 stars. So the total number of stars is 3 × 6 = 18 stars.
As we can see, both scenarios result in the same total number of stars, which is 18. Therefore, Sophie's statement is correct, and she did get the same total number of stars both times.
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How do you solve 1/2 / -2/5 + (-1/4)
Which algebraic expression is equivalent to the expression below?
HELP
Choose the one expression below that is true.
A. 14 - (19 + 3) = (14 - 19) + 3
B. (6 - 5) + 11 = 6 - (5 + 11)
C. 18 - (10 + 9) = (18 - 9) + 10
D. (3 + 2) + 10 = 3 + (2 + 10)
8 gallons of batter are poured equally into 4 bowls. How many gallons of batter are in each bowl
6/7 CD What are the factors of the expression? Drag all of the factors of the expression into the box.
The factor of the expression is [tex]6 \div 7[/tex], c, and d.
Given that,
It is mentioned that [tex]6 \div 7[/tex] CD.We need to find the factors of the expression.Based on the above information, the factors are as follows:
[tex]6 \div 7[/tex], c, and d.
Therefore we can conclude that the factor of the expression is [tex]6 \div 7[/tex], c, and d.
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how would u even find the shaded part?
which expression is equivalent to -1.3 +(-4.9)+(-2.6)?
Aaaay the answer is -8.8
suppose nicole saves 2.50 every day how much money will she have in 4 weeks
8wsquared2
[tex]8w {2 }^{2} - 18w[/tex]
-18w
[tex]
{\text{Here, we have the algebraic expression}} \hfill \\
8w \times {2^2} - 18w \hfill \\
{\text{For simplifying the expression, first we solve the exponent part,}} \hfill \\
{\text{and then the resultant will be multiply with the monomial }}18w \hfill \\
8w \times {2^2} - 18w \hfill \\
= 8 \times w \times {2^2} - 18w \hfill \\
= \left( {8 \times {2^2}} \right) \times w - 18w\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\left[ {\because \,{\text{By associative law }}a \times \left( {b \times c} \right) = \left( {a \times b} \right) \times c} \right] \hfill \\
= \left( {8 \times 4} \right) \times w - 18w \hfill \\
= 32 \times w - 18w \hfill \\
= 32w - 18w \hfill \\
= 14w \hfill \\
[/tex]
1. Use the graph for Parts A–D.
A. Is the relation a function? Explain.
B. What is the domain of the relation?
C. What is the range of the relation?
D. What is the value of y when x = 2? Explain.
Add. Write the doubles fact you used to solve the problem.. 7+8=15 ??? __ __ __ __ __
PLEASE HELP!!!!!!!!!!!!!!!!!!!!
Tara is looking for a job cutting hair. One option is self-employment at The Booneville Salon, where she would pay $767 per month to rent a station and keep all of her earnings. Another option is to work at a franchise, where she would just have to pay the salon $13 for every haircut. If she performed a certain number of haircuts every month, the amount paid to either salon would be the same. How much would Tara pay? How many haircuts would that be?
Tara would pay $ to either salon if she performed haircuts
the product of two consecutive pages is 182 find the page number
product is multiplication so find the square root of 182
sqrt(182) = 13.49
so use the whole number above and below that
13 * 14 = 182
the page numbers are 13 & 14
Acelynn borrows $1337 to buy a four wheeler. The interest rate is 4% for the 14 year loan.
Final answer:
Acelynn will pay back a total of $748.72 in interest over the 14 years of her loan for the four-wheeler. This was calculated using the simple interest formula.
Explanation:
To calculate how much interest Acelynn will pay back on the money borrowed for the four-wheeler, we use the simple interest formula: Interest (I) = Principal (P) × Rate (R) × Time (T).
Here, the principal P is $1337, the rate R is 4% (or 0.04 as a decimal), and the time T is 14 years.
Plugging these values into the formula, we get:
I = $1337 × 0.04 × 14
I = $53.48 × 14
I = $748.72
Therefore, as per the above explaination,Acelynn will pay back $748.72 in interest over the 14 years of the loan.
twelve is no less than the sum of a number n and 3
The inequality for the given statement is n+3<12.
The given statement is twelve is no less than the sum of a number n and 3.
What is an inequality?Inequalities are the mathematical expressions in which both sides are not equal. In inequality, unlike in equations, we compare two values. The equal sign in between is replaced by less than (or less than or equal to), greater than (or greater than or equal to), or not equal to sign.
Now, the sum of a number n and 3 = n+3
Twelve is no less than the sum of a number n and 3 = n+3<12
Therefore, the inequality for the given statement is n+3<12.
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If the fraction 396\x-10 is equivalent to -22. find the value of x.
Help please!
−3/4 + (1/10 ÷ 2/5)
PLEASE HELP!!! 20 POINTS THANKS
Use the Associative Property of Addition to find the total of 4, 12, and 18 in two different ways.
A. (4 + 12) + 18 = 16 + 18 = 34; 4 + (12 + 18) = 4 + 30 = 34
B. (4 + 12) + 18 = 16 + 18 = 34; (12 + 4) + 18 = 16 + 18 = 34
C. 4 + 12 + 18 = 16 + 18 = 34; 12 + 18 + 4 = 30 + 4 = 34
D. 4 + 12 + 18 = 16 + 18 = 34; 18 + 12 + 4 = 30 + 4 = 34
Answer:
Step-by-step explanation:
A. (4 + 12) + 18 = 16 + 18 = 34; 4 + (12 + 18) = 4 + 30 = 34
Find the measure of angle B in isosceles triangle ABC.
A) 40°
B) 55°
C) 65°
D) 85°
The linear function in the graph shows the population of Greeville in the years since 2010.
The exponential function in the table represents the student population of the county that Greeville is in, in years since 2010.
Years since 2010 2 3 4 5
Population 2200 4400 8800 17,600
How does the y-intercept of the exponential function compare to the y-intercept of the linear function? Drag the correct answer to the box to complete the statement.
approximately 300 more than
approximately 300 less than
approximately 2000 more than
approximately 2000 less than
The y-intercept of the exponential function is _______ the y-intercept of the linear function.
Answer: The y-intercept of the exponential function is approximately 2000 less than the y-intercept of the linear function.
Step-by-step explanation:
Given: The exponential function in the table represents the student population of the county that Greenville is in, in years since 2010.
The standard exponential function is given by :-
[tex]y=Ab^x[/tex], where A is the initial population and x is the number of years.
From table , the multiplicative rate of change b=[tex]\frac{y_3}{y_2}=\frac{4400}{2200}=2[/tex]
Put x=2 and b=2 in the equation, we get
[tex]2200=A(2)^2\\\Rightarrow\ A=\frac{2200}{4}=1950[/tex]
We know that the value of y intercept occurs when x=0,
From the given table , the y intercept of exponential function (Initial population)= 550
The linear function in the graph shows the population of Greenville in the years since 2010.
From the given graph, the y intercept of linear function (x=0 for year 2010)= 2500
The difference in y intercepts = [tex]2500-550=1950\approx2000....\text{{Rounded nearest thousand}}[/tex]
Hence, The y-intercept of the exponential function is approximately 2000 less than the y-intercept of the linear function.
Are these parallel,perpendicular, or neither. Y= -1/4x +10 and -2x+8y=6
Definition of economic
how to do s=3F-24 solve the formula fo f and plzz show how you got it
Violet ordered her annual credit reports. Her Experian score is 804, her Equifax score is 810, and her TransUnion score is 784. What is Violet's median score? (Round to the nearest whole point, if applicable.)
A) 797
B) 810
C) 804
D) 799
Answer:the answer is C 804 hope this helps
Step-by-step explanation:
Answer: Option 'C' is correct.
Step-by-step explanation:
Since we have given that
Scores of her experian, her Equifax and her TransUnion are as follow:
[tex]804, 810, 784[/tex]
We first write in ascending order:
[tex]784, 804, 814[/tex]
Since there are odd numbers of scores.
So, n = 3,
As we know the formula for "Median " :
[tex]Me=(\frac{n+1}{2})^{th}\\\\Me=\frac{3+1}{2}^{th}\\\\Me=\frac{4}{2}^{th}\\\\Me=2^{nd}\ term\\\\Me=804[/tex]
Hence, the Violet's Median Score is 804.
Therefore, Option 'C' is correct.