Answer:
a
Step-by-step explanation:
What is the value of the positive zero of the function defined by x2 + x - 30?
Answer:
5
Step-by-step explanation:
(x+6)(x-5)
x = 5
x = -6
Find x. Round to the nearest tenth if necessary.
Answer:
your answers are in the attachment
hope it helps...
Step-by-step explanation:
A pair of shoes that normally sells for $85.00 goes on sale for 35% off. Season thinks that the sale price should be $50.00 but Melanie disagrees and says the price should be $55.25. Aiyanna says they are both wrong and decides the price should be $29.75. Who is correct and why?
Answer:
Melanie is correct
Step-by-step explanation:
35% of 85 is 29.75 so take that away from the original price and you get 55.25
This means the price will be 55.25$
Answer:
Melanie is correct since 65% of $85.00 is $55.25.
Step-by-step explanation:
The original price of the shoes is $85.00. That is 100% of the price of the shoes since 100% is a whole amount.
The discount on the shoes is 35%.
100% - 35% = 65%
That means the sale price is 65% of the original price. Now we calculate 65% of $85.00.
65% of $85.00 =
= 0.65 * $85.00
= $55.25
Answer: Melanie is correct since 65% of $85.00 is 55.25.
what is the equation of the line that passes through the point (3,4) and has a slope of -2/3
Аnswer is in а photo. I couldn't аttach it here, but I uploаded it to а file hosting. link below! Good Luck!
xlnk․cf/tcMG
Answer:
y= -2/3x+6
Step-by-step explanation:
A school board is interested in knowing how the teachers in the school district feel about the new professional development plan. They create a list of the 245 teachers in the district and randomly select 40 names from the list to survey anonymously.
Which description matches each term?
the 40 randomly selected teachers
the list of all teachers in the school district
the 245 teachers in the school district
sample
arrowRight
population
arrowRight
frame
Answer:
frame: the list of all teachers in the school district
population: the 245 teachers in the school district
sample: the 40 randomly selected teachers
Step-by-step explanation:
hope this helped !! :) #plato/edmentumfam
Answer:
Answer:
frame: the list of all teachers in the school district
population: the 245 teachers in the school district
sample: the 40 randomly selected teachers
Step-by-step explanation:
correct on plato:)
Avis purchased a Jeep for $12,480. Her down payment was $3,600. She paid the remainder in 48 monthly payments. Write a numerical expression that represents her monthly payment. *
9514 1404 393
Answer:
(12480 -3600)/48
Step-by-step explanation:
Assuming a 0% interest rate, the monthly payment will be 1/48 of the amount remaining after the down payment:
(12480 -3600)/48
_____
= 185
Help me please , thank you so much
Domain: All real numbers, or (-∞,∞) depending on how you want to write it.
Range: [-4, ∞)
Vertex: (-2, -4)
Axis of symmetry: x = -2
Interval of increase: (-2, ∞)
Interval of decrease: (-∞, -2)
Y-int: (0, 0)
X-int/Zero/Solution(s): (-4, 0) and (0, 0)
For a polynomial function like this, which is a quadratic function, the domain is always negative infinity to positive infinity, or all real numbers.
The range is the lowest y-value to the highest y-value. The lowest y-value for this is at the vertex, but the function has no upper limit for the y-value.
The vertex is the point that you can very clearly see is at the tip of the graph.
Axis of symmetry is the vertical line that splits the graph in half at the vertex.
Interval of increase is the interval x values for which the function is increasing. The function increases to the right of the vertex.
Interval of decrease is to the left of the vertex.
The y-intercept is clearly (0, 0), where the graph intersects the y-axis.
The x-intercepts are also clear, since you can see where the graph intersects the x-axis.
if you invest $1,600 at 5.35% for 18 months how much simple interest is earned
Answer:
Step-by-step explanation:
Answer:
1540.8
Step-by-step explanation:
i=prt
i= 1600(.0535)(18)
i=1540.8
also i is equal to interest, p is equal to principal, r is equal to rate and t is equal to time.
A fair coin and a spinner with an
equal chance of landing on the
numbers 1, 2, 3, 4, 5, and 6 are used
in a game. What is the probability of
getting an even number on the
spinner and heads on the coin?
A 1/12
B 1/6
C 1/4
D 1/2
Answer:
1/4
Step-by-step explanation:
There are 3 evens given the 6 numbers
P(even) = 3/6 =1/2
There is 1 head on a two sided coin
P(head) = 1/2
Multiply the probabilities together since they are independent events
P(even, heads) = 1/2*1/2 = 1/4
Answer:
Solution :-For odd
P = 3/6
P = ½
For head
P = ½
For both
½ × ½ = ¼
[tex] \\ [/tex]
HURRY TIMEDWrite an equation of the line that passes through a pair of points:
(negative 2, 2), (5, negative 5)
a.
y = StartFraction 3 Over 7 EndFractionx – StartFraction 20 Over 7 EndFraction
c.
y = Negative StartFraction 3 Over 7 EndFractionx + StartFraction 7 Over 20 EndFraction
b.
y = Negative StartFraction 3 Over 7 EndFractionx + StartFraction 20 Over 7 EndFraction
d.
y = Negative StartFraction 3 Over 7 EndFractionx – StartFraction 20 Over 7 EndFraction
Answer:
the answer is b
Step-by-step explanation:
Answer:
D.) y= -3/7x - 20/7
Step-by-step explanation:
on edge 2021
BOTS ARE LEGIT EVERYWHERE LIKE I CANT EVEN FIND A SPOT FOR PPL TO POST THEIR REAL ANSWER PLS ANYONE, BRAINLY NEEDS TO BE BETTER AT THIS
Answer:
y=-5x-3
Step-by-step explanation:
Slope: -5/1 =-5
Y2-Y1/X2-X1=2-7/1-2=-5/1
Y-intercept: -3
Solve this for me (geometry)
Answer:
YES
Step-by-step explanation:
Any line that is tangent to a circle is always perpendicular to the radius of the circle, forming a right angle at the point of tangency.
Therefore, ∆BAC is a right triangle if it satisfy the pythagorean triple rule which says that c² = b² + a²
Where,
c = the hypotenuse = 30
b = 24
a = 2(9) = 18
Thus:
30² = 24² + 9²
900 = 900 (this is true)
Therefore, line AB is tangent to circle O.
The answer is YES
3/5 of a number is 30. What's the number?
PLEASEEE HELP
Answer:
N = 50
Step-by-step explanation:
Of means multiply and is means equals
3/5 * N = 30
Multiply each side by 5/3 to isolate N
5/3 * 3/5 * N = 30 * 5/3
N = 50
Find the solution of the system of equations.
Answer:
(1, -7)
Step-by-step explanation:
If you need the work:
5x+3y =-16
5x= -3y -16
x= -3/5y - 16/5
---------------
Substitute x
-10x-3y=11
-10(-3/5y-16/5)-3y=11
y= -7
---------------
Substitute y
x= -3/5(-7) -16/5
x= 1
ANSWERS FOR MATH LESSON 5.05 7TH GRADE
Answer:
I am so sry i don't know
Step-by-step explanation:
Answer:
file:///C:/Users/mctas/Downloads/4_14_22Project5.05Slides.pdf
attend live lesson on homepage
What is 1/4 divided by 4
A plumber charges a customer a one-time service fee of $79, $62 per hour for labor, and a surcharge of $15 per hour due to the call being an emergency.
Write an expression to represent the total charges for the plumber in two different ways. Let h represent the number of hours the job takes.
Enter the correct answers in the boxes.
One Way:
Second Way:
Answer:
One Way: 79 + 62H + 15H = X
Second Way: 79 + ((62 + 15) x H) = X
Step-by-step explanation:
Given that a plumber charges a customer a one-time service fee of $ 79, $ 62 per hour for labor, and a surcharge of $ 15 per hour due to the call being an emergency, to write an expression to represent the total charges for the plumber in two different ways, with H representing the number of hours the job takes, the following equations should be formulated:
79 + 62H + 15H = X
So, for example, if the job had lasted 2 hours, the equation would apply as follows:
79 + 62x2 + 15x2 = X
79 + 124 + 30 = X
233 = X
79 + ((62 + 15) x H) = X
In the case, if the work had lasted 1 hour, the equation would apply as follows:
79 + (62 + 15) x 1) = X
79 + 77 x 1 = X
79 + 77 = X
156 = X
The total charge when there is an emergency is $79 + $77h. The total charge when there is no emergency is $79 + $62h.
There are two ways of representing the total charges of the plumber,one when there is an emergency call and two when there is no emergency call. The total charge a function of the one-time service fee, labor charge and the surcharge.
Total charge when there is an emergency = one-time service fee + labor charge per hour + surcharge per hour
$79 + $62h + $15h
= $79 + $77h
Total charge when there is no emergency = one-time service fee + labor charge per hour
$79 + $62h
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13.50 x 8.5????????
help
Answer:
[tex]13.50 \times 8.5 \\ = 13.5 \times 8.5 \\ = 114.75[/tex]
A piece of art weighing 30 pounds is hung from two wires as shown below. Each wire is supporting half of the weight of the picture. However, since the wires extend out at an angle, they are also imparting force towards the left and right. Therefore, the force on each wire is greater than 15 pounds. Look at the diagram above with the vectors. Use trigonometry to find ||→ux||and ||→vx||.
||→ux||= pounds ||→vx||= pounds
What is the total force (in pounds) exerted on each wire?
||→u||= pounds ||→v||= pounds
Answer:
mind fact sub happy wala birthday quiz frist
The grocery store is located at (-6,5), the school is located at (8,5), and the library is located at (-6,-8). How much farther is the school from the grocery store than the library is from the grocery store?
Answer:
by 1 unit
Step-by-step explanation:
School to the grocery store is 14units
Library to grocery store is 13 units
14-13=1
I need some help by today or tomorrow how can I express the ratio of 500 miles to 50 gallons of gas as a unit rate?
Answer:
More than happy to help with your homework:
500 miles = 50 gallons
(Divide both sides of the EQ by 50)
10 miles = 1 gallon
(Divide both sides by gallon)
10 miles per gallon
Can someone help me with this question
Answer: 85
Step-by-step explanation:
The circumference of a circle measures 360 degrees, so arc FD measures 170 degrees.
By the inscribed angle theorem, angle G measures 85 degrees.
Shaquira's monthly income is $2,500. Her monthly budget is represented by the circle graph. Monthly Budget Utilities 18% Entertainment 9% Rent 51% Gasoline 7% Food 15% Which part of Shaquira's budget is equal to $175?
Answer:
Gasoline 7%
Step-by-step explanation:
2500 * 0,07 = 175
Number * 0, percent = answer
Gasoline is the part of Shaquira's budget which is $175.
What is Percentage?In mathematics, a value or ratio that can be expressed as a fraction of 100 is known as a percentage. To find the % of a number, divide it by its value, then multiply the result by 100. Since one percent (symbolized as 1%) is equal to one hundredth of something, 100 percent stands for everything, and 200 percent refers to twice the amount specified.
As per the given data:
Shaquira's monthly income = $2,500
Monthly Budget Utilities = 18% of income
Entertainment = 9% of income
Rent = 51% of income
Gasoline = 7% of income
Food = 15% of income
To find which part is $175 let's calculate all parts:
Monthly Budget Utilities = (18/100) × 2,500 = $450
Entertainment = 9% × 2,500 = $225
Rent = 51% × 2,500 = $1275
Gasoline = 7% × 2,500 = $175
Food = 15% × 2,500 = $375
Hence, gasoline is the part of Shaquira's budget which is $175.
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What is the relationship between a and b?
Answer:
Supplementary angle.
Pls mark Brainliest :)
Step-by-step explanation:
voting rates in presidential elections from 1996-2012 are modeled below
The statement that does not model the situation:
(1) For citizens 18-29 years of age, the rate of change in voting rate was greatest between the years 2000-2004.
What is a confidence interval?A confidence interval is a range of values that are constrained by the statistic's mean and that is likely to include an unidentified population parameter. The proportion of likelihood, or certainty, that the confidence interval would include the real population parameter when a random sample is drawn several times is referred to as the confidence level.
Given:
Voting rates in presidential elections from 1996-2012 are modeled below.
Voting Rates in Presidential Elections, by Age, for the Voting-Age Citizen Population: 1996-2012
The interpretation of the statements is given below;
(1) For citizens 18-29 years of age, the rate of change in voting rate was greatest between the years 2000-2004.
No, the greatest was in the year 2008.
(2) From 1996-2012, the average rate of change was positive for only two age groups.
True, the age groups are 39.6 to 45.0 and 69.1 to 72.0.
(3) About 70% of people 45 and older voted in the 2004 election.
Yes.
(4) The voting rates of eligible age groups lie between 35 and 75 percent during presidential elections every 4 years.
Yes, the interval difference is 4.
Therefore, option (1) is incorrect.
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Wich if the following is the slope of a line that passes through the points below ? Show all work
Answer: m = -1/2
Use (y2-y1)/(x2-x1) to find the slope.
Which expression will determine the perimeter, in inches, of the rectangle? O 10 x 7 10 + 7 O (2 x 7) + (2 x 10) O 10 x 7 x 7 x 10
Answer:
[tex](2 * 7) + (2 * 10)[/tex]
Step-by-step explanation:
The missing details in the question are:
[tex]Length = 10[/tex]
[tex]Width = 7[/tex]
Required
The perimeter
This is calculated as:
[tex]Perimeter = 2 * (Length + Width)[/tex]
So, we have:
[tex]Perimeter = 2 * (10 + 7)[/tex]
Open bracket
[tex]Perimeter = 2 * 10 + 2 * 7[/tex]
Rewrite as:
[tex]Perimeter = (2 * 7) + (2 * 10)[/tex]
Answer:
c
Step-by-step explanation:
In a lab experiment, the decay of a radioactive isotope is being observed. At the
beginning of the first day of the experiment the mass of the substance was 500 grams
and mass was decreasing by 9% per day. Determine the mass of the radioactive
sample at the beginning of the 17th day of the experiment. Round to the nearest tenth
(if necessary).
Answer:
Approximately 110.6 grams remain at the beginning of the 17th day.
Step-by-step explanation:
At the beginning of the first day, the mass of the substance was 500 grams.
It decreases by 9% per day.
And we want to determine the mass of the sample at the beginning of the 17th day.
First, we need to find our ratio of decay. Since it decreases by 9% or 0.09 each day, the mass of the substance after each subsequent day will be 100% - 9% or 1 - 0.09 or 0.91 of the previous day.
We can write a exponential function to model this. An exponential function has the form:
[tex]f(x)=ar^x[/tex]
Where a is the initial term and r is the rate.
Let x represent the number of days after the first day. Substitute 500 for a and 0.91 for r:
[tex]f(x)=500(0.91)^x[/tex]
The 17th day is 16 days after the first day. So, the amount of mass remaining on the beginning of the 17th day is when x = 16. Substitute:
[tex]f(x)=500(0.91)^{16}[/tex]
Approximate. Therefore:
[tex]f(x)\approx110.6\text{ grams}[/tex]
Approximately 110.6 grams remain at the beginning of the 17th day.
A poll was conducted during the final game of the basket season to determine whether fans wanted to see the defending champions win the game or the challenging team win the game. From the poll, 216 of the 374 residents sampled from urban areas want the defending champions to win the game. In more rural areas, 304 of the 466 residents polled want the defending champions to win the game. Assuming lo an has nothing to do with team preference, the probability that the data gathered was the result of chance is calculated to be 0.03. What is the correct interpretation of this calculation?
There will be a significant difference between the two proportions. A further explanation is given below.
As shown by the data, families in remote regions are much more likely to desire the protecting winners to control the tournament than individuals throughout large cities, and this difference is statistically substantial.Throughout this case, it's because the p-value of further 0.03 would be significantly less than the threshold of 0.05 significance. As a result, we may claim that perhaps the results are statistically significant at such a 0.05 range.
Thus the above is the appropriate solution.
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4) Divide x^4 – 14x^2 + 45 by (x - 3)
Answer:
Ok 9-8=1 times 2 = 2
Step-by-step explanation:
Answer:
x^3−5x+3x^2−15
Step-by-step explanation:
Common math
