NEED HELP FAST!!
5.
(05.03 MC)
Freddy reads an equal number of pages of a book every week. The graph below shows the number of pages of the book left to read, y, after x weeks:
Which equation best models the relationship between x and y? (1 point)
y = –5x + 40
y = –40x + 280
y = –40x + 200
y = –5x + 200
Answers
slope = (160 - 200) / (1 - 0) = -40
u have a y int (where the line crosses the y axis) at (0,200)
in y = mx + b form, the slope is in the m position and the y int is in the b position...
so ur equation is : y = -40x + 200
Related Questions
how to factorise x squared minus 16
Answers
x^2 - 4^2
If you simplify further:
it is also a difference of 2 squares giving you: (x + 4)(x - 4)
Therefore x = -4 or 4
For which value or values are the expressions 15k + 9 and 3(2k + 3) + 9k equivalent? A) no values B) 3 C) 3,5 and 8 or D) all values
Answers
15k + 9 = 6k + 9 + 9k
15k + 9 = 15k + 9
0 = 0
D) all Values
Final answer:
The expressions 15k + 9 and 3(2k + 3) + 9k are equivalent for all values of k because after simplifying the second expression, it matches the first expression exactly.
Explanation:
To determine for which value or values the expressions 15k + 9 and 3(2k + 3) + 9k are equivalent, we must first simplify the second expression.
Simplify 3(2k + 3) + 9k:
= 6k + 9 + 9k
= 15k + 9.
Now we compare the simplified forms of both expressions. It is clear that they are identical in form, meaning that they are equivalent for all values of k. No additional values are needed; the expressions are universally equivalent as they simplify to the same equation.
Which number line represents all of the values of x for the equation x2 = 16? A number line is shown from negative 10 to 0 to positive 10. There are increments of 2 on the number line, and all these are increments are labeled. A dot is shown on positive 4 and is labeled as p. A number line is shown from negative 10 to 0 to positive 10. There are increments of 2 on the number line, and all these are increments are labeled. A dot is shown on positive 8 and is labeled as p. A number line is shown from negative 10 to 0 to positive 10. There are increments of 2 on the number line, and all these are increments are labeled. A dot is shown on positive 4, another dot is shown on negative 4, and are labeled as p and q, respectively. A number line is shown from negative 10 to 0 to positive 10. There are increments of 2 on the number line, and all these are increments are labeled. A dot is shown on positive 8, another dot is shown on negative 8, and are labeled as p and q, respectively.
Answers
Answer: Its the 3rd choice.
Algebraic expression that best describes the sequence 2,4,8,16,32,...?
Answers
Answer:
Algebraic expression that best describes the sequence is:
[tex]2^{n}[/tex]
Step-by-step explanation:
We have the sequence 2, 4, 8, 16, 32,...?
With the Algebraic expression:
[tex]2^{n}[/tex] (1)
n is the number into the sequence that you want to find, we can prove it if we replace in the equation (1)
For example in the first term, n=1
[tex]2^{1}=2[/tex]
in the second term, n=2, and so on
[tex]2^{2}=4\\2^{3}=8\\2^{4}=16\\2^{5}=32\\2^{6}=64\\[/tex]
Anna took Allie out for lunch their lunches cost $13.28 and $14.25 including tax and tip and a paid with $40 how much change did Anna receive
Answers
40.00 - 27.53 = 12.47
40-27.53= 12.47
Anna received $12.47 back
Which statement could be used to explain why f(x) = 2x – 3 has an inverse relation that is a function?
Answers
Answer:
f(x) is a one to one function
Step-by-step explanation:
A thief can travel 260 miles total with on tank of gas. Using only one tank of gas, what is the farthest city that the thief can reach? (4.5 cm = 150miles)
Answers
150x=260×4.5
***
x=7.8cm
A: so, with the one tank of gas, he can arrive at town which is 7.8 cm far from start :)
How many solutions are there for the system of equations shown on the graph?
No solution
One solution
Two solutions
Infinitely many solutions
Help best answer gets brainliest
!!!!!
Answers
Rachel wants to paint her cupboard. The length of the cupboard is 2.5 meters, its width is 1 meter, and its height is 2 meters. How much area will she need to paint if she paints both the bases and all the lateral faces?
Answers
We need to find the L x W, L x H, and W x H.
It appears to be a rectangular prism.
L x W = 2.5 x 1 = 2.5
L x H = 2.5 x 2 = 5
W x H = 1 x 2 = 2
2.5
5
+2
____
9.5 x 2 because the figure has 6 sides not 3 so the answer is :
9.5 x 2 = 19 meters
P.S. You just had to find the surface area of the rectangular prism ;)
Answer:
the answer is 10 m2
Step-by-step explanation:
write general rule for adding
a. two integers with the same sign.
b. two integers with different signs.
c. two integers that vary in sign.
Answers
b. Subtract, and give the difference the sign of the number with the greatest absolute value.
When adding integers, if the signs are the same, add the numbers and keep the sign. If the signs are different, subtract the smaller number from the larger number, using the sign of the larger number.
Explanation:To offer some general rules for adding integers, consider the following scenarios:
When we add two integers with the same sign, we add the absolute values of the numbers and keep the common sign. For example, (-4) + (-3) equates to -7, as they are both negative. If we are combining two integers with different signs, we subtract the smaller number from the larger number and use the sign of the larger number. For instance, 7 + (-2) equals 5, because 7 is larger and positive. When adding two integers that vary in sign, it suggests that one number could be positive and the other negative or vice-versa. Thus, we follow the second rule mentioned above. For example, -6 + 3 gives -3 because 6 is bigger and negative. Learn more about Adding Integers here:
https://brainly.com/question/27908445
#SPJ12
PLease ANSWER
You get 30 points
On your math quiz, you earn 5 points for each question that you answer correctly. In the table below, x represents the number of questions that you answer correctly on your math quiz, and y represents the total number of points that you score on your quiz. The relationship between these two variables can be expressed by the following equation: y=5x. Suppose you answer 40 questions correctly on your math quiz.
Answers
A circle is centered at the point (-3,2) and passes through the point (1,5). What's the radius
Answers
radius = square root (( x2-x1)^2 +(y2-y1)^2)
= sqrt(1-(-3)^2+(5-2)^2
= sqrt(16+9)
=sqrt(25)
= 5
radius is 5
The radius of the circle is [tex]\boxed{5{\text{ units}}}.[/tex]
Further explanation:
The standard equationof the circle with center [tex]\left( {h,k}\right)[/tex] and radius r can be expressed as,
[tex]{\left( {x - h}\right)^2} + {\left({y - k} \right)^2}= {r^2}.[/tex]
Given:
A circle with center at [tex]\left({ - 3,2} \right).[/tex]
The passing through point is [tex]\left( {1,5} \right).[/tex]
Explanation:
The center is at [tex]\left( { - 3,2} \right).[/tex]
The passing through point is [tex]\left( {1,5} \right)[/tex]. Therefore, the point satisfies the equation of circle.
Substitute 1 for x, 5 for y, -3 for h and 2 for k in general equation of the circle to obtain the radius of circle.
[tex]\begin{aligned}{\left( {x - h}\right)^2}+{\left({y - k}\right)^2}&={r^2}\\{\left( {1 + 3} \right)^2} + {\left( {5 - 2}\right)^2}&= {r^2}\\16 + 9&= {r^2}\\\sqrt{25}&= r\\5&= r\\\end{aligned}[/tex]
The radius of the circle is [tex]\boxed{5{\text{ units}}}.[/tex]
The radius of the circle is [tex]\boxed{5{\text{ units}}}.[/tex]
Learn more:
1. Learn more about equation of circle brainly.com/question/1506955.
2. Learn more about domain of the function https://brainly.com/question/3852778.
3. Learn more about coplanar https://brainly.com/question/4165000.
Answer details:
Grade: Middle School
Subject: Mathematics
Chapter: Circle
Keywords: Circle, centered point, (-3,2), passes point (1,5), standard form of the circle, equation of the circle, center, diameter of circle, radius of the circle,center-radius form, general equation of circle, tangent, area of circle.
Consider 8x2 - 48x = -104. Write the equation so that a = 1
Answers
Answer:
x² + (-6x) = -13
ALSO the second answer,
x² + (-6x) __ = -13 + __
Both blanks are 9
Third answer, factor the trinomial and simplify:
(x + -3 )²= -4
Use the square root property of equality to solve
(x – 3)2 = –4.
The solutions are
The correct option is C. 3 ± 2i.
:D
The equation 8x² - 48x = -104 can be rewritten with 'a' = 1 by dividing all terms by 8 and rearranging to the form ax² + bx + c = 0, yielding x² - 6x + 13 = 0.
Explanation:To rewrite the equation so that 'a' = 1, it would be useful to adjust the coefficients in your equation first. Starting with the given equation: 8x² - 48x = -104. We can divide all terms by 8 to normalize the 'a' coefficient.
Doing that gives us: x² - 6x = -13. Now, to write the equation in the form ax² + bx + c = 0, we can add 13 to both sides which results in: x² - 6x + 13 = 0. Now your equation is in the standard quadratic form with 'a' = 1.
https://brainly.com/question/30098550
#SPJ2
If 30% of John's photographs were perfect, but 210 photographs were not perfect, then how many photographs were there in all?
Answers
To find the total number of photographs, we use the fact that 30% were perfect, meaning 70% were not perfect. By setting up the equation 0.70x = 210, we can solve for x, finding that there were 300 photographs in total.
If 30% of John's photographs were perfect and 210 were not perfect, determining the total number of photographs involves understanding percentages and basic algebra. Here's the step-by-step breakdown of solving the problem:
Let's call the total number of photographs 'x'.Since 70% of the photographs are not perfect (as 30% are perfect), we know that 0.70x equals the number of not perfect photographs.We can set up the equation: 0.70x = 210.To find 'x', divide both sides of the equation by 0.70: x = 210 / 0.70.This gives us the total number of photographs, x = 300.Therefore, there were 300 photographs in total.
The total number of photographs is 300.
If 30% of John's photographs were perfect, it means that 70% were not perfect. Since 210 photographs were not perfect, we can set up an equation to find the total number of photographs. Let x represent the total number of photographs. We know that 70% of x equals 210:
[tex]\[ 0.70x = 210 \][/tex]
Solving this equation, we find that
[tex]\( x = \frac{210}{0.70} = 300 \)[/tex]
Therefore, there were 300 photographs in total. This calculation assumes that all photographs are either perfect or imperfect, with no other categories.
In a set of integers between 18 and 95, inclusive, how many are divisible by 6 but not 12?
Answers
1.5≤n≤7.9
n=[2,7]
So multiples of 12 are 7-2+1=6
18≤6n≤95 divide all terms by 6
3≤n≤15.8
3≤n≤15
So multiples of 6 are 15-3+1=13
So there are 13-6=7 multiples of 6 that are not multiples of 12 in the set of integers [18,95]
1.5≤n≤7.9
n=[2,7]
So multiples of 12 are 7-2+1=6
18≤6n≤95 divide all terms by 6
3≤n≤15.8
3≤n≤15
So multiples of 6 are 15-3+1=13
So there are 13-6=7 multiples of 6 that are not multiples of 12 in the set of integers [18,95]
Find the quotient of 9 divided by 5/8 .
Answers
9 / 5/8 =
9/1 / 5/8 =
9/1 * 8/5 = 72/5 = 14 2/5
how do you find the sum of all integers between square root of 12 + square root of 40?
Answers
6 < sqrt(40) < 7
So the only integers between those square roots are 5 and 6
Add them together.
The next even integer that is larger than 2n, if 2n is an even integer.
Answers
Frankie purchases a 3 1/2 pound bag of chicken.he uses 1 1/3 of chicken for fajitas how many pounds of chicken are left?
Answers
21-8=13=13/6 or 2 1/6
=2.16
[13/6]
Just subtract what he used from what he had to calculate what he has.
Sergei says that 10%
of a number will always be less than 20%
of any other number.
Complete one inequality to support Sergei's claim and one to show that he is incorrect.
Answers
10% of 100 < 20% of 200.
10% of 1000 > 20% of 100.
What are the numbers that make the claims correct?Percentage is the fraction out of an amount that is usually expressed as a number out of hundred. Percentages are a measure of frequency. The sign used to represent percentages is %.
To learn more about percentages, please check: https://brainly.com/question/25764815
#SPJ2
There is 16 pink stripes and green stripes. Find the ratio o pink stripes to green stripes
Answers
16(pink): green(I don't know the green)
If you don't know the green I guess it would be 16:x. X stands for green.
plz help and thank you!
Answers
The answer to your question is the third option:
1/2(n+4) = 5/n - 3
three less than the quotient of five and the number: 5/n - 3
so should be
1/2(n +4) = 5/n - 3
answer is the third one (C)
1/2(n +4) = 5/n - 3
name the property the equation illustrate -5+(8+10)=(-5+8)+10
Answers
Okay so what you need to know is the the property that this equation illustrates... simple!
The property that is illustrated here is known as the Associative Property of Addition.
I hope that helped!
Please vote me for Brainliest if there is a second answer! ^__^
After a devastating winter, when thousands of fish died, an environmental scientist has replenished the trout stock in a fishing pond. He started with 5,000 baby trout and has finished a count to find that, in 4 years, the population is estimated to be 8,500. Assuming an exponential growth pattern, what is the annual growth rate (rounded to the nearest tenth of a percent) of the new trout population?
Answers
The annual growth rate of the new trout population is approximately 12.0%.
Explanation:To find the annual growth rate of the trout population, we can use the exponential growth formula:
P = P0ert
where P is the final population, P0 is the initial population, r is the annual growth rate, and t is the number of years.
In this case, we have P = 8,500, P0 = 5,000, and t = 4. Plugging these values into the formula, we can solve for r:
8,500 = 5,000e4r
Divide both sides by 5,000:
1.7 = e4r
Take the natural logarithm of both sides:
ln(1.7) = 4r
Divide both sides by 4:
r ≈ ln(1.7)/4 ≈ 0.120
Final answer:
The annual growth rate of the trout population is calculated using the formula for exponential growth. By substituting the given values into the formula, the growth rate is determined to be approximately 13.41% per year. After rounding, the annual growth rate is 13.4%.
Explanation:
To calculate the annual growth rate of the trout population, we can use the formula for exponential growth, which is P = P0e(rt), where:
P is the final population size,
P0 is the initial population size,
r is the annual growth rate,
t is the time in years.
We know that P0 = 5,000 (initial population), P = 8,500 (final population), and t = 4 years. To find r, we rearrange the formula to solve for r:
r = (ln(P/P0)) / t
Plugging in the values gives us:
r = (ln(8500/5000)) / 4 = ln(1.7) / 4 ≈ 0.1341 or 13.41% per year
Rounding to the nearest tenth of a percent, the annual growth rate is 13.4%.
The diameter of the moon is 2155 miles. Find volume of the moon. Round answers to the nearest whole number and leave pi in the answer
Answers
V=(4π/3)(d^3/8)
V=(πd^3)/6, since d=2155mi
V≈1667978979π mi^3
Answer: [tex]1667978979\pi[/tex] cubic miles
Step-by-step explanation:
We know that the shape of moon is sphere.
The volume of sphere is given by :-
[tex]\text{V}=\dfrac{4}{3}\pi r^3[/tex], where r is the radius of sphere.
Given : The diameter of moon = 2155 miles
Then the radius of moon=[tex]\dfrac{2155}{2}[/tex]
Then , the volume of moon is given by :-
[tex]\text{V}=\dfrac{4}{3}\pi (\dfrac{2155}{2})^3=1667978979.2\pi\approx1667978979\pi \text{ cubic miles}[/tex]
9. Jane has a checkbook balance of $68.00. She then writes two checks, one for $5.00 and one for $62.50. She also deposits $75.00. She then uses her calculator to determine her new balance. Which of the following is the correct series of keys she should press? A. [ON/C] [68] [+] [75] [=] [5] [=] [62.50] [=] B. [68] [+] [75] [–] [62.50] [–] [5] [=] C. [ON/C] [68] [–] [5] [–] [62.50] [+] [75] [=] D. [68] [+] [75] [–] [5] [–] [62.50] [=]
Answers
it is C
she turns the calculator on, then enters her starting balance them subtracts both checks she wrote then added the deposit.
Restaurant sales totaled 38,676 for the week. Your customer count was 7,325. What did the average customer spend for the week
Answers
divide total by number of customers
38,676/7,325 = 5.28
average was $5.28
a jar of 25 lollipops in a clinic has 7 that are grape, 10 cherry, and 8 orange. If a nurse selects 4 lollipops randomly, what is the probability that they will all be grape?
Answers
Why is the polynomial, 4x^2y + 5xy classified as a 3rd degree binomial?
Answers
you can buy 3 apples at quick market for $1.17, you can buy 5 of the same apples at Stop and Save for $2.40.
a.Which store is the better buy?
b. How much will you save per apple if you purchase it from the cheaper store?