Answer:
C = [tex]\frac{2.8}{7} + 0.75[/tex]
$1.15
Step-by-step explanation:
Here is the complete question :
Cookies are on sale! Today each cookie costs $0.75 less than normal price. Right now if you buy 7 of them it will only cost you $2.80!
write an equation to determine the normal price of each cookie (C). Find he normal price of each cookie.
the discounted price of one cookie = total sales price of 7 cookies / 7
$2.8 / 7 = $0.4
it was stated in the question that the sales price is $0.75 less than normal price. Thus the normal price of the cookie = $0.4 + $0.75 = $1.15
the equation : [tex]\frac{2.8}{7} + 0.75[/tex]
help im brain dead i dont understand
Answer:
A
Step-by-step explanation:
Find the 8th term of the geometric sequence 3, 9, 27, ...
Answer:
8th term- 6,561
Step-by-step explanation:
Each term in the sequence is being multiplied by 3. For example, 3x3=9 and 9x3=27. Now, we need to continue multiplying numbers, so we can list them all here, still starting with 3.
1&2) 3x3=9
3) 9x3=27
4) 27x3=81
5) 81x3=243
6) 243x3=729
7) 729x3=2,187
8) 2,187x3=6,561
The 8th term of the geometric sequence is 6,561.
Hope this helps and have a great day! ^^
Help would be gradually appreciated
Answer:
area is 60.75 m^2
Step-by-step explanation:
please help me solve this
Step-by-step explanation:
(x-2)^2
(x-2) (x-2)
x(x-2) -2(x-2)
x^2- 2x -2(x-2)
x^2-4x+4
A system of equations is shown below.
8x - 2y = -4
4x - y = -2
Answer:
Step-by-step explanation:
Solve this system using elimination by addition and subtraction:
Multiplying the second equation by -2 yields the modified system
8x - 2y = -4
-8x + 2y = +4
Adding these together, we get 0 + 0 = 0 (This is always true.)
There are an infinite number of solutions.
Which choices are equivalent to the expression below? Check all that apply.
Answer:5
Step-by-step explanation:
Answer:
the answer is 5.
Step-by-step explanation:
_/25 = 5.
Mrs. Young passed out 7 pipe cleaners to each of the 32 students in her class. When she was finished passing them out, she had 26 pipe cleaners left over. How many pipe cleaners did she start with?
Answer:
250
Step-by-step explanation:
32(7) + 26 = 224 + 26
For the school play, tickets cost $9.50 for adults and $3 for kids under 12. What
would be the total cost for 8 adult tickets and 21 kids tickets? What would be the total
cost for a adult tickets and k kids tickets?
Answer:
250 $3 tickets and 100 $2 tickets were sold
Please help me !!!!!
Answer:
3/8
Step-by-step explanation:
If 1 and 3 are odd numbers then all you have to do is count the number of 1 and 3's(3). then count the number of numbers (8).
PLEASE HELP!!!!!!!!!!!
Solve each equation:
a. x+3+3x=x+15
b. 3x+5=-3x+5x+10
c. n+n+3n=15
Answer:
A. X=4
B. X=5
C. N=3
Step-by-step explanation: Hope this help :D
What degree of rotation about the origin will cause the triangle below to map onto itself?
A. 270°
B. 180°
C. 360°
D. 90°
Answer:
the right answer will be c.360
360 degree of rotation about the origin will cause the triangle below to map onto itself.
What is Transformation?A point, line, or geometric figure can be transformed in one of four ways, each of which affects the shape and/or location of the object. Pre-Image refers to the object's initial shape, and Image, after transformation, refers to the object's ultimate shape and location.
We have to find the degree of rotation that cause the triangle below to map onto itself.
As, A figure will be mapped onto itself if it circles the graph 360 degrees.
So, there are 360 degrees in a circle, the figure has just completed a full circle and returned to where it was before rotating.
Thus, the degree of rotation is 360.
Learn more about Transformation here:
https://brainly.com/question/16941421
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David has a monthly after-tax income of $ 1430.15 1430.15 . He will be using the companies health insurance plan which costs $ 63 63 a monthand the retirement option which takes 7 7 % of his after tax income. Calculate David's Monthly Take-Home pay.
Answer:
$ 1267.
Step-by-step explanation:
Given :
David's monthly income after tax = $ 1430.15
His health insurance cost him in a month = $ 63
Percent deducted from his income after tax for his retirement option is = 7%
Therefore money left after retirement option deduction is :
$ 1430.15 - 7% of $ 1430.15
= 1430.15 - 100.11
= $ 1330.04
= $ 1330 (aprrox)
Money deducted from this amount for his health insurance plan
= $ 1330 - $ 63
= $ 1267
Therefore, David's monthly take home pay is $ 1267.
Answer? please i really need help
PLEASE HELP! Whoever solves it first gets Brainliest!
Answer:
There mistake was on step three because 5 x 5 is 25 and the answer he got was 80.
Step-by-step explanation:
What is an equation of the line that passes through the points (0,0) and (5,2)
Answer:
y = 2/5x
Step-by-step explanation:
slope = 2-0/5-0 = 2/5
y - 2 = 2/5(x - 5)
y = 2/5x
Question 7: Find the value of x.
Help
Answer:
x+50°=180°{alternate enterior angle}
x=180-50
x=130°
hope it helps ....
Can you guys help me solve this
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
Answer:
so how many units are they away from each other
Step-by-step explanation:1,
1.1-2.0 how many units are they away from each other
u could drag the number from the top to the chart below
good luck!
12 1/2 - (-4 1/2) = ?
Answer:
17
Step-by-step explanation:
12 1/2-(-4 1/2)
12 1/2+ 4 1/2
17
Determina el valor de las siguientes razones trigonomètricas sen 38°34'56" Cot 45°34' Sec 39° Tan 12° Csc 16°24' Sen 34.5°
Answer:
a) [tex]\sin 38.582^{\circ} \approx 0.624[/tex], b) [tex]\cot 45.567^{\circ}\approx 0.980[/tex], c) [tex]\sec 39^{\circ} = 1.287[/tex], d) [tex]\tan 12^{\circ} \approx 0.213[/tex], e) [tex]\csc 16.4^{\circ} \approx 3.542[/tex], f) [tex]\sin 34.5^{\circ}\approx 0.566[/tex]
Step-by-step explanation:
Sabemos que un minuto equivale a [tex]\frac{1}{60}[/tex] de un grado sexagesimal, mientras que un segundo equivale a [tex]\frac{1}{3600}[/tex] de un grado sexagesimal, entonces procedemos a convertir cada ángulo a su forma decimal y simplificamos en términos de senos y cosenos mediante identidades trigonométricas:
a) [tex]\sin 38^{\circ}34'56'' = \sin 38.582^{\circ}[/tex]
Por tablas trigonométricas tenemos que [tex]\sin 38^{\circ} \approx 0.616[/tex] y [tex]\sin 39^{\circ} \approx 0.629[/tex], mediante interpolación lineal tenemos que:
[tex]\sin 38.582^{\circ} \approx 0.624[/tex]
b) [tex]\cot 45^{\circ} 34' = \cot 45.567^{\circ}[/tex]
[tex]\cot 45.567^{\circ} = \frac{\cos 45.567^{\circ}}{\sin 45.567^{\circ}}[/tex]
Por tablas trigonométricas tenemos que [tex]\sin 45^{\circ} \approx 0.707[/tex], [tex]\sin 46^{\circ}\approx 0.719[/tex], [tex]\cos 45^{\circ}\approx 0.707[/tex] y [tex]\cos 46^{\circ}\approx 0.695[/tex], mediante interpolación lineal tenemos que:
[tex]\cot 45.567^{\circ}\approx 0.980[/tex]
c) [tex]\sec 39^{\circ} = \frac{1}{\cos 39^{\circ}}[/tex]
Por tablas trigonométricas tenemos que [tex]\cos 39^{\circ}\approx 0.777[/tex], entonces tenemos que:
[tex]\sec 39^{\circ} = 1.287[/tex]
d) [tex]\tan 12^{\circ} = \frac{\sin 12^{\circ}}{\cos 12^{\circ}}[/tex]
Por tablas trigonométricas tenemos que [tex]\sin 12^{\circ} \approx 0.208[/tex] and [tex]\cos 12^{\circ} \approx 0.978[/tex], entonces tenemos que:
[tex]\tan 12^{\circ} \approx 0.213[/tex]
e) [tex]\csc 16^{\circ}24' = \csc 16.4^{\circ}[/tex]
[tex]\csc 16.4^{\circ} = \frac{1}{\sin 16.4^{\circ}}[/tex]
Por tablas trigonométricas tenemos que [tex]\sin 16^{\circ} \approx 0.276[/tex] y [tex]\sin 17^{\circ}\approx 0.292[/tex], mediante interpolación lineal tenemos que:
[tex]\csc 16.4^{\circ} \approx 3.542[/tex]
f) [tex]\sin 34.5^{\circ}[/tex]
Por tablas trigonométricas tenemos que [tex]\sin 34^{\circ} \approx 0.559[/tex] y [tex]\sin 35^{\circ} \approx 0.574[/tex], mediante interpolación lineal tenemos que:
[tex]\sin 34.5^{\circ}\approx 0.566[/tex]
Cyber Monday Shopping A survey of U.S. adults found that of people said that they would get no work done on Cyber Monday since they would spend all day shopping online. Find the confidence interval of the true proportion. Round intermediate answers to at least five decimal places. Round your final answers to at least three decimal places.
Complete question :
Cyber Monday Shopping A survey of 1000 U.S. adults found that 33% of people said that they would get no work done on Cyber Monday since they would spend all day shopping online. Find the 95% confidence interval of the true proportion.
Answer:
(0.301 ; 0.359)
Step-by-step explanation:
Sample size, n = 1000
Phat = 0.33
(1 - phat) = 1 - 0.33 = 0.67
Zcritical at 95% = 1.96
Confidence interval :
Phat ± margin of error
Margin of Error = Zcritical * sqrt[(phat(1 - phat)) /n]
Margin of Error = 1.96 * sqrt[(0.33 * 0.67) / 1000]
Margin of Error = 1.96 * 0.0148694
Margin of Error = 0.0291440
Lower boundary = (0.33 - 0.0291440) = 0.300856
Upper boundary = (0.33 + 0.0291440) = 0.359144
(0.301 ; 0.359)
Find the area of the blue shaded region.
10 m
8 m
18 m
20 m
A 144 m2
B 200 m2
C 56 m2
D 344 m2
Answer:
56
Step-by-step explanation:
area of whole figure=
l×b
=20×10
=200
also,area of small fig.
=l×b
=18×8
=144
thus area of shaded part =a of whole- a of small
=200-144
=56
Solve the following quadratic equation for all values of xx in simplest form.
5(x^2-4)+10=10
What is the total area of both the soccer field and playground? 10 meters 6 meters 11 meters 16 meters
Answer:
60 meters and 176 meters, together it is 236 meters
Step-by-step explanation:
No links please, question is in photo,
Answer:
C
Step-by-step explanation:
Two like therms have the same literal part, in case we have two terms:
6y^3z and 8y^3z
Write an internet for this situation: a deposit of $245
Answer:
.
Step-by-step explanation:
Suppose you want to factor the expression x2 + 2xn+n?. Given that n>0, what are the factors? Explain.
Select the correct answer below and, if necessary, fill in the answer box to complete your choice.
O A. The value of n can be any positive integer resulting in the same factor
O B. The value of n can be any positive integer resulting in the distinct factors
(Use a comma to separate answers as needed.)
O C. The value of n can be any prime integer resulting in the same factor
O
D. The value of n can be any prime integer resulting in the distinct factors
(Use a comma to separate answers as needed.)
O E. The expression cannot be factored for the given values of n.
Answer:
A. The value of n can be any positive integer resulting in the same factor
Step-by-step explanation:
Given
[tex]x^2 + 2xn + n^2[/tex] --- the right expression
[tex]n > 0[/tex]
Required
Possible values of n
[tex]x^2 + 2xn + n^2[/tex]
Expand
[tex]x^2 + 2xn + n^2 = x^2 + xn+xn + n^2[/tex]
Factorize
[tex]x^2 + 2xn + n^2 = x(x + n)+n(x + n)[/tex]
Factor out [tex]x + n[/tex]
[tex]x^2 + 2xn + n^2 = (x + n)(x + n)[/tex]
From the expression above, we can see that the result has the same factor. This means that options (b), (d) and (e) are not possible
[tex]x^2 + 2xn + n^2 = (x + n)^2[/tex]
The above also shows that n can take any positive value.
Hence: (a) is correct
If a backpack can fit 10 pounds of goods, how many backpacks are necessary for 35 pounds of goods. backpacks
Answer:
4 backpacks
Step-by-step explanation:
3 backpacks can hold 30 pounds. You can't have half a backpack, so you just add another.
Answer:
4
Step-by-step explanation:
A group of students was asked about the number of e-mails they each sent that day. The results are: 0,0,0,0,1,2,2,3,5,5, 8, 9, 10, 10, 10 Which histogram correctly shows the data set?
Answer:
Step-by-step explanation: I don’t know I’m sorry
Answer:
is the photo
Because I had that question
what does x equal too?
Answer:
74
Step-by-step explanation:
Straight lines add up to 180 degrees
180 - 106 is 74