Answers
Answer: y = -5
Here you go
Related Questions
If x + 2y = 1, and 2x + y = 5, then x + y = ?
A.1 B.2 C.3 D4 E.5
Answers
The students at Matthew's school voted for a new school color. 282 students voted for blue. If there are 600 students in Matthew's school, what percentage of the students voted for blue?
Write your answer using a percent sign (%).
Answers
Answer:
Your answer would be that 47% of students voted for blue.
what happens when you multiply each side of the inequality by a negitive number
Answers
Answer:
What happens when you multiply each side of the inequality by a negative number?
Much like when you divide by a negative number, the sign of the inequality must flip. When you multiply both sides by a negative value you make the side that is greater have a "bigger" negative number, which actually means it is now less than the other side!
Does the inequality sign change when multiplying by a negative?
Because we are multiplying by a negative number, the inequalities change direction.
What is the rule for negatives and inequalities?
If a < b and if c is a negative number, then a · c > b · c. Multiplying each side of an inequality by a negative number reverses the direction of the inequality symbol. Dividing each side of an inequality by a negative number reverses the direction of the inequality symbol.
Examples of inequality by a negative number
3x < 7+3
Multiply (or divide) both sides by a negative number. Swapping left and right-hand sides.
Determine the 5-d 20°C BOD of a wastewater if the 3-d 10°C BOD is 100g/m'. Assume k at 20°C equals 0.20d", and temperature coefficient, is 1.135. The following equation is provided. ky_T1 = kr_T2
Answers
By applying the equation ky_T1 = kr_T2, where kr is the BOD rate constant at temperature T1, kr is the BOD rate constant at temperature T2, and the subscripts represent the respective temperatures, the 5-day 20°C BOD can be calculated.
To calculate the 5-day 20°C BOD, we can use the temperature coefficient and the given 3-day 10°C BOD. The equation ky_T1 = kr_T2 relates the BOD rate constants at different temperatures. In this case, we have the BOD rate constant at 20°C, ky_20, and the BOD rate constant at 10°C, kr_10.
First, we need to determine kr_20, the BOD rate constant at 20°C, by applying the temperature coefficient. The temperature coefficient value of 1.135 indicates that the rate constant increases by a factor of 1.135 for every 1°C increase in temperature. Since the given rate constant at 10°C is kr_10 = \(0.20d^{-1}\), we can calculate kr_20 as follows:
kr_20 = kr_10 * (\(1.135^{(20-10)}\))
Once we have kr_20, we can calculate the 5-day 20°C BOD using the formula:
5-day 20°C BOD = 3-day 10°C BOD * (kr_20 / ky_20)
By substituting the given values, we can solve for the 5-day 20°C BOD.
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What is the greatest common factor (GCF) of the following polynomial?
6x^3y + 12x^2y^2 - 15x^3y^3
Answers
If I multiplied these binomials (x - 3) + (4x + 2) what would be the final product?
Answers
Answer: 4x^2 - 10x - 6
Step-by-step explanation:
You can use FOIL to do this. First terms, Outer terms, Inner terms, Last terms.
(x - 3)(4x + 2)
First terms: x * 4x = 4x^2
Outer terms: x * 2 = 2x
Inner terms: -3 * 4x = -12x
Last terms: -3 * 2 = -6
Now add these together:
4x^2 + 2x - 12x - 6 = 4x^2 - 10x - 6
Answer:
4x^2 - 10x - 6
Step-by-step explanation:
If you truly want to multiply these binomials, remove the " + " sign and replace it with " * " for multiplication:
(x - 3) (4x + 2) = 4x^2 + 2x - 6 - 12x
Combining like terms, we get 4x^2 - 10x - 6
if you go bowling and an hour is $12.99 then how much would it be for 3 hours
Answers
Answer:
36.33 its not correct
Step-by-step explanation:
but if its correct thank me ;)
Math!! Pls help
Which expression is equivalent to x^2 - 4x -45
Answers
Answer:
D
Step-by-step explanation:
x^2-4x-45
(x-9)(x+5)
What two numbers when multiplied make the -45 and when added make the -4? -9 and +5
an insurance company conducted an opinion poll for a new health policy. in a sample of 200 participants, 117 of them supported this policy. does this provide strong evidence that more than a half of americans are supporting the new health policy? compute the value of the test statistic (round off to first decimal place).
Answers
Therefore , the p- value is 0.008 , thus half of population is supporting.
Describe the hypothesis .A hypothesis is a proposed explanation for a phenomenon. The scientific method states that a theory cannot be deemed scientific unless it has been put to the test. The majority of scientific ideas are founded on historical findings that are insufficiently explained by current knowledge.
Here,
test statistics Z=
Z = \(\frac{p-p'}{\sqrt{p'(1-p')/n} }\)
for
H0 : p= 0.5
And
Ha: p>0.5
Z =(0.585-0.5) / ((0.5)(0.5)/200)
Z=2.4
Since p =x/n=117/200=0.585
Thus
p- value= P(Z>2.4)=1-Ф(2.4)=1-0.992 =0.008
Therefore , the p- value is 0.008 , thus half of population is supporting.
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Examine the intersection of these two lines:
Which of the following pairs of angles are
supplementary? Select all that apply.
Answers
Answer:
You can't answer this question since there is no picture. Remember though the any 2 angles that make 180 degrees or resembles a line is 180 degrees.
Write an equation of the line with a slope of 2 and a y-intercept of 5
Answers
Answer:
y=2x+5
Step-by-step explanation:
if there is an slope and a y-intercept all you have to do is place it in the y=mx+b
m=slope
b=y-intercept
Michelle and Natasha each had to repair their new iPhones. The initial cost of each repair is \$100$100. Michelle and Natasha each have two discount coupons. Each of them uses both coupons toward the cost of the repair. One coupon is for \$25$25 off the repair cost and the other coupon is for 20\%20% off the repair cost. Michelle and Natasha use their coupons in a different order, as shown below. Michelle uses the 20\%20% off the repair cost coupon first. She then uses the \$25$25 off the repair cost coupon on the remaining balance. Natasha uses the \$25$25 off the repair cost coupon first. She then uses the 20\%20% off the repair cost coupon on the remaining balance.
Answers
send a picture of the question instead okay I don't understand
Answer:
send a pic of it
Step-by-step explanation:
Which equation represents a graph with a vertex at (1, -6)?
A. y=3x2+6x–3
B. y=3x2-6x-3
C. y=3x2-8x-1
D. y=3x2-3x-6
Answers
Answer:
the answer is B
Answer:
its b
Step-by-step explanation:
I NEED HELP ASAP!!!!!!!
A. m= -2
B. m= -1/2
C. m= 2
D. m= 1/2
Answers
Answer:
A. m = -2
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Slope Formula: \(\displaystyle m=\frac{y_2-y_1}{x_2-x_1}\)Step-by-step explanation:
Step 1: Define
Find points from graph.
Point (0, 0)
Point (1, -2)
Step 2: Find slope m
Simply plug in the 2 coordinates into the slope formula to find slope m
Substitute in points [SF]: \(\displaystyle m=\frac{-2-0}{1-0}\)[Fraction] Subtract: \(\displaystyle m=\frac{-2}{1}\)[Fraction] Divide: \(\displaystyle m=-2\)Can you change 4x−3y=12 into slope-intercept form?
Answers
Answer:
y = 4/3x -4
Step-by-step explanation:
4x -3y =12
move the variable to the right
-3y = 12 -4x
Change the signs
3y= -12 +4x
Divide both sides
y = -4 + 4/3x
Answer: y = 4/3x -4
Hope that helps!
Anytime you have a problem that asks for slope intercept for remember the formula, Y=MX+B
Have a nice day :)
8. Jose is driving at 30 mph (miles per hour).
Brett is driving at 30 kph (kilometers per hour).
If 1 mile = 1.6 kilometers
a. Who is moving faster?
How much faster give answer in kilometres.
Answers
Answer:
63 mils
Step-by-step explanation:
Five integers have a mean of 8. The
integers are 7, 3, 10, 13, X. Find the
value of x.
Answers
(7+3+10+13+x)/5 = 8
(7+3+10+13+x) = 40
x = 40-7-3-10-13 =7
Solve the two-step equation.
5.1 = –3x – 4.2
1. Add 4.2 to both sides.
2. Divide both sides by -3.
The solution is x =
.
Answers
Answer:
X = -3.1
Step-by-step explanation:
Answer:
the answer is x= -3.1
Step-by-step explanation:
proof its the right answer
The graph of a linear function “f” passes through the point (1, 3) and has a slope of 3.
What is the y-intercept?
Answers
Answer:
0
Step-by-step explanation:
Using slope intercept as ref (y=mx+b)
plug in the x and y x=1 and y=3 and the slope m=3
3=3(1)+b
solve for b
3=3+b
b=0
108 is one interior angle of a regular
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Answer:
There are 108° in each interior angle of a regular pentagon. This process can be generalized into a formula for finding each interior angle of a REGULAR polygon Each interior angle of a “regular” polygon is given by where n = the number of sides in the polygon.
Step-by-step explanation:
Here is an expression 3*2t
evaluate the exoression when t is 4
Last one for tonight!
Answers
Answer:
24
Step-by-step explanation:
3 * 2 = 6 * 4 = 24
Answer: 48
Step-by-step explanation:
3 x 2^4 =3 x 16 = 48
I need help with this answer I would like help !
Answers
hope this helped!
Find the surface area
Answers
The surface area of the square base pyramid is 1425 inches².
How to find the surface area of a square base pyramid?The surface area of the square base pyramid can be found as follows:
surface area of square base pyramid = a² + 2al
where
a = side length of the square basel = slant heightTherefore,
a = 19 inches
l = 28 inches
Therefore,
surface area of square base pyramid = 19² + 2 × 19 × 28
surface area of square base pyramid = 361 + 1064
surface area of square base pyramid = 1425 inches²
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what is (13X + 9k)+(17x +6k), simplified?
Answers
Answer:
(45x)
Step-by-step explanation:
(13x+9x) + (17x+6x)
(22x) + (23x)
(45x)
// have a great day //
use the formula for the sum of the first n integers to evaluate the sum given below. 3+6+9+12+....+150
Answers
The sum of the numbers 3+6+9+12+....+150 is 3825. To find the sum of an arithmetic series, you can use the formula:
Sum = (n * (a1 + an)) / 2
where n is the number of integers, a1 is the first integer, and an is the last integer.
In this case, the series is 3, 6, 9, ..., 150, and it's an arithmetic series with a common difference of 3. To find the number of integers (n) in the series, use the formula:
n = ((an - a1) / common difference) + 1
n = ((150 - 3) / 3) + 1 = (147 / 3) + 1 = 49 + 1 = 50
Now, use the sum formula:
Sum = (n * (a1 + an)) / 2
Sum = (50 * (3 + 150)) / 2
Sum = (50 * 153) / 2
Sum = 7650 / 2
Sum = 3825
So the sum of the given series is 3825.
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can anyone help me please :)
Answers
Answer: B
Step-by-step explanation:6+4+5+3+8=26
26-6=20 20/26=10/13
burgers cost $2.50 each and fries cost $1.30 each. if wendy spent $24.10 on 13 fries and burgers, how many of each did she buy?
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If Wendy spent $24.10 on 13 fries and burgers, then she bought 6 burgers and 7 orders of fries.
Let x be the number of burgers Wendy bought and y be the number of fries she bought.
We know that burgers cost $2.50 each and fries cost $1.30 each.
So the total cost of x burgers and y fries is:
2.5x + 1.3y
We also know that Wendy spent $24.10 on 13 burgers and fries, so:
2.5x + 1.3y = 24.10
Finally, we know that Wendy bought a total of 13 burgers and fries:
x + y = 13
Now we have two equations with two variables, which we can solve using substitution or elimination.
Let's use substitution:
x = 13 - y
Substitute this into the first equation:
2.5(13 - y) + 1.3y = 24.10
Simplify and solve for y:
32.5 - 2.5y + 1.3y = 24.10
-1.2y = -8.4
y = 7
So Wendy bought 7 orders of fries.
Substitute y = 7 into x + y = 13 to find x:
x + 7 = 13
x = 6
So Wendy bought 6 burgers and 7 orders of fries.
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What is the equation of the vertical asymptote of g(x)=4log2(x−2) 5 ? enter your answer in the box.
Answers
The equation of the vertical asymptote of the function \(g(x)=4log_{2} (x-2)+5\) is x=2.
What is vertical asymptote of a function?Vertical asymptotes are vertical lines that represent the zeros of a rational function's denominator. Asymptotes can also occur in other situations, such as logarithms. It occurs at the x-value that is outside the domain of the function, therefore the graph can never cross it.
How to find vertical asymptotes from graph?There may be a vertical asymptote along the vertical line if a portion of the graph is about to turn vertical. At the point of x along which you discovered the vertical asymptote, the function's value changes to either ∞ or -∞. A vertical asymptote, however, must never touch the graph.
Graph the function \(g(x)=4log_{2} (x-2)+5\)
(x,y)= (3,5), (4,9), (6,13)
From graph we can see that the graph is turning to be vertical from x=2. So, the equation of vertical asymptote of the function is x=2.
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The complete question is:
“What is the equation of the vertical asymptote of \(g(x)=4log_{2} (x-2)+5\)? enter your answer in the box.”
What is the first step in isolating the variable x?
X/Y - Z = W; for X
Answers
Answer:
X = Y(W + Z)
Step-by-step explanation:
X/Y - Z = W
X/Y = W + Z
X = Y(W + Z)
what is the perimeter of square abcd? units units 28 units 37 units
Answers
The perimeter of square ABCD is 28 units.
The perimeter of a square is the sum of all its sides. In this case, we need to find the perimeter of square ABCD.
The question provides two possible answers: 28 units and 37 units. However, we can only choose one correct answer. To determine the correct answer, let's think step by step.
A square has all four sides equal in length. Therefore, if we know the length of one side, we can find the perimeter.
If the perimeter of the square is 28 units, that would mean each side is 28/4 = 7 units long. However, if the perimeter is 37 units, that would mean each side is 37/4 = 9.25 units long.
Since a side length of 9.25 units is not a whole number, it is unlikely to be the correct answer. Hence, the perimeter of square ABCD is most likely 28 units.
In conclusion, the perimeter of square ABCD is 28 units.
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