Answer:
$(19x + 42n + 15)
Step-by-step explanation:
Devi bought 7 skirts at $x each, n skirts at $12 each, (2n + 1) skirts at $15 each and 4 skirts at $3x each. Find the total cost of the skirts she bought.
total cost of the skirt bought can be determined by adding the total costs of each shirt bought
7 skirts at $x each = $7x
n skirts at $12 each = $12n
(2n + 1) skirts at $15 = (2n + 1) x 15 = 30n + 15
4 skirts at $3x each = $12x
7x + 12n + 30n + 15 + 12x
combine like terms
19x + 42n + 15
Given that x/1 = 3y/8, find the ratio of : y
Answer:
3 : 8
Step-by-step explanation:
[tex]\frac{x}{1} = \frac{3y}{8}[/tex]
cross multiply
8x = 3y
x = 3/8
x : y = 3 : 8
Select the correct answer from each drop-down menu.
Use the given functions represented by the equation and the graph to complete the statements.
f(x)=2x^3 - 3x^2 + 5x + 7
As x approaches positive infinity, f(x) approaches [negative infinity, positive infinity, zero] and g(x) approaches [negative infinity, positive infinity, zero]. The y-intercept of function f is [equal to, less than, greater than] the y-intercept of function g.
Answer:
f(x) approaches positive infinity.
g(x) approaches negative infinity.
the y-intercept of f(x) is less than the y-intercept of g(x).
Step-by-step explanation:
the highest power of x in f(x) is 3, and it has a positive sign. so, the bigger x the more the x³ part will dominate.
therefore, with x going to positive infinity, also f(x) goes to positive infinity.
the graph of g(x) clearly dives down never to come back up or flatten out. so, with x going to positive infinity, g(x) goes to negative infinity.
the y-intercept of f(x) = f(0).
that means the functional value when x=0.
so, for x=0 this means
y = 2×0³ - 3×0² + 5×0 + 7 = 7
the graph of g(x) shows that g(0) is 8.
so f(0) is less than g(0).
As x approaches positive infinity, f(x) approaches positive infinity and g(x) approaches negative infinity. The y-intercept of the function f is 7 and the y-intercept of function g is 8. #SPJ5
How to analyze the behavior of two given polynomialsPolynomials are algebraic expressions whose form is described below:
[tex]y = \sum \limits_{i = 0}^{n} c_{i}\cdot x^{i}[/tex] (1)
Where [tex]c_{i}[/tex] is the i-th coefficient of the polynomial.
In this question we have two polynomials in two distinct presentations, an analytical and a graphical one, whose behaviors must be analyzed to fill the blanks of the paragraph given. The complete paragraph is shown below:
As x approaches positive infinity, f(x) approaches positive infinity and g(x) approaches negative infinity. The y-intercept of the function f is 7 and the y-intercept of function g is 8. #SPJ5
To learn more on polynomials, we kindly invite to check this: https://brainly.com/question/20121808 #SPJ5
Write the additive inverse of -1/3
Write the additive inverse of [tex]\frac{ - 1}{3} [/tex].
➼ The additive inverse of [tex] \frac{ - 1}{3} [/tex] is [tex]\frac{+ 1}{3} [/tex].
[tex]\circ \: \: { \underline{ \boxed{ \sf{ \color{green}{Happy\:learning.}}}}}∘[/tex]
Pls help not sure how to answer
Answer:
i think its yz but not sure
Step-by-step explanation:
What are the amplitude and midline?
A. Amplitude: 1; midline: y = 1
B. Amplitude: 0; midline: y = 0
C. Amplitude: 2; midline: y = 1
D. Amplitude: 2; midline: y = 0
Answer:
A. Amplitude: 1; midline: y = 1
Answer:
A. Amplitude: 1; midline: y = 1
Step-by-step explanation:
i took the test
3n - 5 = -8
what is the value of n?
Evaluate (-362) + 9 ÷ 10
6/8 - h/8 = 1/8
What is the value of h?
Please answer, I really need help.
Answer:
h = 5
Step-by-step explanation:
6/8 - h/8 = 1/8
Multiply each side by 8 to clear the fractions
8*(6/8 - h/8) = 1/8*8
6 - h = 1
Subtract 6 from each side
6-h-6 = 1-6
-h = -5
Multiply each side by -1
h = 5
Answer:
[tex]h = 5[/tex]
Step-by-step explanation:
Solve the equations:
[tex] \frac{6}{8} - \frac{h}{8} = \frac{1}{8} [/tex]
Reduce fractions to the lowest term by canceling the greatest common factor:
[tex] \frac{3}{4} - \frac{h}{8} = \frac{1}{8} [/tex]
Rerreange unknown terms to the left side of the equation:
[tex] - \frac{h}{8} = \frac{1}{8} - \frac{3}{4} [/tex]
Find the common denominator and write the numerator above common denominator:
[tex] - \frac{h}{8} = \frac{1 - 6}{8} [/tex]
Calculate the sum or difference:
[tex] - \frac{h}{8} = \frac{ - 5}{8} [/tex]
Reduce the greatest common factor on both sides of the equation:
[tex] - h = - 5[/tex]
Divide both sides of the equation by the coefficient variable:
[tex]h = 5[/tex]
Which relation is a function?
Answer:
the answer should be A
Step-by-step explanation:
be your X values are not supposed to repeat
please help me I will give brainlist
Answer:
Option B
Step-by-step explanation:
I am sure
Hope this helped u
Answer:A
Step-by-step explanation:
solve, then check albebraically and graphically 7x+14=56
Answer:
7×+14=56
= 7×=56 -14
= × = 6
Step-by-step explanation:
I hope it helps you
PLSSSSS HELP MEEEE!!!!!!
Jose drove 35 miles in 2/3 hours. If he drove at a constant rate, how far did he travel in one hour? Enter your answer as a whole number, proper fraction, or mixed number in the simplest form.
Answer:
Jose traveled 52.5 miles in 1 hour
Step-by-step explanation:
What we're actually doing here is finding the "unit rate": the speed in mph:
35 mi 105 mi
------------ = ------------ = 52.5 mph = 52.5 miles in 1 hour
2/3 hr 2 hr
Jose traveled 52.5 miles in 1 hour
Karla scored 75, 80, and 92 on her history quizzes. What is the minimum score she needs on her next quiz to have a mean of 85?
Answer:
The answer should be 93.
Step-by-step explanation:
So this took a lot of work to figure out, I did not solve it normally.
What i first did was add 75, 80, and 92 to get = 247. 247/3 was only 82, but in the equation you said the score on her next quiz, which means I would need to divide by 4.
But that was not possible with the numbers I had.
i started adding numbers to see if I would get the mean of 85, and eventually I added 93. to get 340, which I divided by 4 (the number of quizzes that were taken) to get the mean of 85.
so yeah, I made it more complicated than it need to be, but that's the answer lol
-your very overworked friend who went to great extent to solve this problem,
Azalea
Circle P is graphed in the coordinate plane with center (- 4, 7) Circle P contains the point (-1,9 9). What is an equation of circle P?
Given:
Center of the circle P = (-4,7)
Point on the circle = (-1,9).
To find:
The equation of the circle P.
Solution:
The standard form of a circle is:
[tex](x-h)^2+(y-k)^2=r^2[/tex] ...(i)
Where, (h,k) is the center and r is the radius of the circle.
Center of the circle is at point (-4,7). So, [tex]h=-4,k=7[/tex].
The center passes through the point (-1,9). So, the distance between the point (-1,9) and the center (-4,7) is the radius.
Distance formula:
[tex]Distance=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
Using the distance formula, we get
[tex]r=\sqrt{(-4-(-1))^2+(7-9)^2}[/tex]
[tex]r=\sqrt{(-3)^2+(-2)^2}[/tex]
[tex]r=\sqrt{9+4}[/tex]
[tex]r=\sqrt{13}[/tex]
Substituting [tex]h=-4,k=7[/tex] and [tex]r=\sqrt{13}[/tex] in (i), we get
[tex](x-(-4))^2+(y-7)^2=(\sqrt{13})^2[/tex]
[tex](x+4)^2+(y-7)^2=13[/tex]
Therefore, the equation of the circle P is [tex](x+4)^2+(y-7)^2=13[/tex].
The equation of the circle P is (x +4)² + (y-7)² = 13
What is the standard equation for a circle ?The standard equation for a circle is
(x - h)² +(y-k)² = r²
here the centre of the circle is (h,k) and r is the radius
It is given that
Circle P is graphed in the coordinate plane with centre (- 4, 7)
The equation can be written as
(x +4)² + (y-7)² = r²
It is also given that
Circle P contains the point (-1,9)
Therefore
( -1 +4)² + (9-7)² = r²
3² + 2² = r²
r² = 9+4 = 13
r = √13
Therefore the equation of the circle P is
(x +4)² + (y-7)² = 13
To know more about standard equation for a circle
https://brainly.com/question/13658927
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Can someone please help me? need this done ASAP!!!!
Answer:
They are not similar
Step-by-step explanation:
Angles dont match
A bag contains 9 discs of which 4 are red, 3 are blue and 2 are yellow. The discs are similar in shape and size. A disc is drawn at random from the bag. Calculate the probability that it will be either red or blue.
Answer:
the probability that it will be either red or blue is 7/9
Step-by-step explanation:
There are 9 disks altogether. Since there are 4 red disks, the probability that a red disk will be drawn is 4/9. The probability that a blue disk will be drawn is 3/9. These two events are independent of one another.
The probability that it will be either red or blue is that of the union of the two events. Thus, we add together 4/9 and 3/9, obtaining 7/9
Need help with figuring out this zingoes problem asap, willing to give brainliest!
Answer:
Zingo, not Zingo, Zingo, Zingo, and not Zingo (left to right)
Step-by-step explanation:
We can notice that all of the Zingoes have a vertical line down an enclosed shape. Additionally, the line must be fully inside the enclosed shape.
Using these properties, starting from the left, we hafd a Zingo, not Zingo, Zingo, Zingo, and not Zingo.
I hope this helps! If you have any questions, feel free to ask. :)
Hey help me please much help
Answer:
C
Step-by-step explanation:
Slope
up 3, right 1 3/1slope = 3Y-intercept = -4
Knowing the slope is 3 and the y-intercept is -4, the answer should be y=3x-4.
What’s answer I needed help please
If the quadratic equation has the form y = ax 2and y = ax 2+ c, then their axis of symmetry must always be?
9514 1404 393
Answer:
x = 0
Step-by-step explanation:
When there is no linear term in the equation, the axis of symmetry is x=0.
__
The values 'a' and 'c' represent a vertical scale factor and a vertical translation, respectively. They do not change the axis of symmetry from that of the parent function, which is x=0.
Please help me i need help ASAP!!! please help
Answer:
BC = 17.1
m<B = 6.7 deg
m<C = 83.3 deg
Step-by-step explanation:
Find BC
a^2 + b^2 = c^2
AC^2 + AB^2 = BC^2
2^2 + 17^2 = BC^2
4 + 289 = BC^2
BC^2 = 293
BC = sqrt(293)
BC = 17.1
Find <B
tan B = opp/adj
tan B = 2/17
B = tan^-1 2/17
B = 6.7 deg
Find <C
m<A + m<B + m<C = 180
90 + 6.7 + m<C = 180
m<C = 180 - 90 - 6.7
m<C = 83.3
A rectangular lawn is yards by 26 yards. It would cost $6.00 per yard to install a fence around the lawn. How much would it cost to put a fence around the lawn?
I need help plea people
A group of oceanographers measured the water temperature of the Atlantic Ocean at various depths and found that the temperature is different. Which of the objects are the independent variable and which is the dependent variable?
Answer:
The independent variable (IV) is the depths at the Altantic Ocean and the dependent variable (DV) is the water temperatures.
Step-by-step explanation:
The IV is what is changed between the groups of the study.
The DV is what is being measured for the groups.
You can say that the DV depends on the IV because changes and differences in the DV depends on the changes for the IV.
I hope this helps! :)
marqualyn needs help...
Answer:
20mins
Step-by-step explanation:
3/4 * 60 = 45 mins
1/4 * 60 = 15mins
15mins + 10mins = 25 mins
45 - 25 = 20mins
How do I generate equivalent expressions by combining like terms, simplifying, or factoring this? ( 4b + 8) =
Answer:
4(b + 2)
Step-by-step explanation:
Given data
The expression is
( 4b + 8)
Looking at the expression, 4 is common
factor 4 out
4(b + 2)
Hence the equivalent expression is
4(b + 2)
A customer borrows $450 at 5% interest compounded annually
Question 3 and 5 please ASAP!
Step-by-step explanation:
a=bx + cx
2
2*a=x(b+c)*2
2
2a = x(b+c)
(b+c) (b+c)
2a = x
(b+c)
which fraction is greater than 5/9 ?
7/13 6/10 3/7 or 4/8
Step-by-step explanation:
First of all, we'll have to eliminate 4/8 and 3/7 because they're both 1/2 or smaller and 5/9 is bigger than 1/2.
That leaves 7/13 and 6/10. 6/10=54/90 and 5/9 is 50/90.
So 6/10 is the correct answer
Solve 2x^2-11x-6=0 please i need this to pass
Answer:
x = -0.5 or 6
Step-by-step explanation:
→ First find the first set of terms in brackets
( 2x + ? ) ( x - ? )
→ Find 2 numbers which multiply to give -6 and subtract to give -11 when multiplied by 2
( 2x + 1 ) ( x - 6 ) = 0
→ Now solve
x = -0.5 or 6
Answer:
x = 6 and -0.5
Step-by-step explanation:
Equation; 2x² - 11x - 6 = 0
a = 2
b = -11
c = -6
Substitute in the values of the equation for the quadratic formula;
-b ± [tex]\sqrt{b^2 - 4ac}[/tex] / 2a
-(-11) ± [tex]\sqrt{(-11)^2 - 4(2)(-6)}[/tex] / 2(2)
11 ± [tex]\sqrt{121+48}[/tex] / 4
11 ± 13 / 4
=> 11 + 13 / 4 = 6
=> 11 - 13 = -0.5
So;
x = 6 and -0.5
Hope this helps!