Answer:
Cost of shirt
c = $5.50x
$115.5
20 t - shirts
Step-by-step explanation:
The dependent variable here is Cost of shirt
T - shirt cost , c equation of any number of customers :
The cost per shirt = $5.50
Let the number of shirts purchased = x
Hence,
c = $5.50x
The cost 21 shirts
x = 21
c = $5.50 * 21 = $115. 5
With c = $110
number of shirts, n equals
110 = 5.50x
110/ 5.5 = x
20
= 20 at shirts
What is the area of the region in the first quadrant bounded on the left by the graph of x=y4+y2 and on the right by the graph of x=5y ?
a)2.983
b)8.508
c)5005.880
d)5293.155
Answer:
2.983
I hope it is helpful to you
The area of the region in the first quadrant bounded on the left and right by the two given graphs is; A: 2.983
What is the area bounded by the graph?
We are given the equations;
x = y⁴ + y² ----(eq 1)
x = 5y ----(eq 2)
Now, let us put eq 1 into eq 2 to get;
y⁴ + y² = 5y
y⁴ + y² - 5y = 0
Using online roots of polynomial calculator, we have;
y = 0 and 1.516
Thus, the area of the region will be gotten by finding the integral between those two points;
[tex]\int\limits^0_\frac{1.516}{} {y^{4} + y^{2} - 5y} \, dy[/tex]
Integrating this, we have;
[tex]\left[\begin{array}{ccc}y^{4} +y^{2} - 5y\\\\\end{array}\right]^{0}_{1.516}[/tex]
Plugging in the relevant values and subtracting gives;
Area = 2.98276 ≈ 2.983
Read more about integration at; https://brainly.com/question/19053586
2(x + 4)2 = 20 solve by square roots
Answer:
x = − 4 ± √ 10,
Step-by-step explanation:
2(x + 4)² = 20
=> 2(x + 4) (x + 4) = 20
=> 2x + 8 (x + 4) = 20
=> 2x² + 8x + 8x + 32 = 20
=> 2x² + 16x + 32 = 20
=> 2x² + 16x + 12 = 0
=> Now solve using the quadratic formula:
x = − 4 ± √ 10,
Radical form: − 4 ± √ 10,
Decimal form: -0.84, -7.16
Hope this helps!
a coin collection consists of nickels, dimes, and quarters, and has a total value of $3.30. there are three times as many nickels as quarters. how many coins of each kind are there if the number of dimes is three less than the average of the number of quarters?
Answer:
18 nickels, 9 dimes, 6 quarters.
Step-by-step explanation:
Basically, I just made a money table and used it to get my equation, which is: 60x-30=330, to get how many quarters there are. Then, plug that in to the problem and you have your answer.
what is 7,548,392 rounded to 100
Answer:
7,548,400
Step-by-step explanation:
Enter the coordinates of the
point on the unit circle at the
given angle.
-135°
Type + or -
V2
[? ]
2
12
>
2
Answer:
It's just negative, just enter this sign -
Step-by-step explanation:
The coordinates of the point on the unit circle at an angle -135° are [tex](-\frac{\sqrt{2} }{2} ,-\frac{\sqrt{2} }{2} )[/tex]
What are coordinates of point on the circle?"The coordinates of any point on the circle [tex]x^{2}+ y^{2}= r^{2}[/tex] are [tex](r~cos\theta,r~sin\theta)[/tex]"
Formula of sin(A ± B)sin(A ± B) = sin(A)cos(B) ± cos(A)sin(B)
Formula of cos(A - B)cos(A - B) = cos(A)cos(B) + sin(A)sin(B)
For given question,
We need to find the coordinates of the point on the unit circle at an angle -135°
We know, for unit circle radius = 1
So, the coordinates of any point on the unit circle would be [tex](cos\theta, sin\theta)[/tex]
Here, [tex]\theta=-135^{\circ}[/tex]
Now, we find the the value of [tex]sin(-135^{\circ}),~cos(-135^{\circ})[/tex]
[tex]sin(-135^{\circ})\\\\=-sin(135^{\circ})\\\\=-sin(180^{\circ}-45^{\circ})\\\\=-[sin(180^{\circ})cos(45^{\circ})-cos(180^{\circ})sin(45^{\circ})]\\\\=-[0\times \frac{1}{\sqrt{2} }-(-1)\times \frac{1}{\sqrt{2} } ]\\\\=-(0+\frac{1}{\sqrt{2} } )\\\\=-\frac{1}{\sqrt{2} }\\\\=-\frac{1\times \sqrt{2} }{\sqrt{2} \times \sqrt{2} }\\\\=-\frac{\sqrt{2} }{2}[/tex]
and cos(-135°) would be,
[tex]cos(-135^{\circ})\\\\=cos(135^{\circ})\\\\=cos(180^{\circ}-45^{\circ})\\\\=cos(180^{\circ})sin(45^{\circ})+sin(180^{\circ})sin(45^{\circ})\\\\=((-1)\times \frac{1}{\sqrt{2}} )+(0\times \frac{1}{\sqrt{2} }) \\\\=-\frac{1}{\sqrt{2} }+0\\\\ =-\frac{1}{\sqrt{2}}\\\\=-\frac{1\times \sqrt{2} }{\sqrt{2}\times \sqrt{2}}\\\\=-\frac{\sqrt{2} }{2}[/tex]
Therefore, the coordinates of the point on the unit circle at an angle -135° are [tex](-\frac{\sqrt{2} }{2} ,-\frac{\sqrt{2} }{2} )[/tex]
Learn more about the coordinates of the point on the unit circle here:
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Find the slop help please
What is the missing term?
Answer:
- 15
Step-by-step explanation:
5 * -3 = -15
what does y intercept mean ?
Answer: The vertical line on a graph representing the vertical coordinate points.
Answer:
In analytic geometry, using the common convention that the horizontal axis represents a variable x and the vertical axis represents a variable y, a y-intercept or vertical intercept is a point where the graph of a function or relation intersects the y-axis of the coordinate system. As such, these points satisfy x = 0. Hope this helps.
Step-by-step explanation:
4. List two solids for which the formula V = Bh applies and 2 for which V = Bh does
not apply.
Step-by-step explanation:
V = Bh applies for :
1. the volume of prism
2. the volume of cylinder
V = Bh doesnt apply for :
1. the volume of pyramid
2. the volume of cone
The two solids where the formula V = bh applied is are prism volume, and cylinder volume. And, where the formula V = Bh does not apply is pyramid volume and cone volume
Listing of two solids:(1) Applied of formula V = Bh is :
The volume of a prismThe volume of the cylinder(1) Not Applied of formula V = Bh is :
The volume of the pyramidThe volume of a coneLearn more about the solid here: https://brainly.com/question/20784784
For each of the following situations, state the predictor variable and the outcome variable.
a. A study is done to determine if elderly drivers are involved in more motor vehicle fatalities than other drivers. The number of fatalities per 100,000 drivers is compared to the age of drivers.
b. A study is done to determine if the weekly grocery bill changes based on the number of family members.
Answer:
Part a
Predictor variable - age of drivers
Outcome variable - number of fatalities caused by elderly drivers out of total 100,000 drivers
Part b
Predictor variable - Number of family members
Outcome variable - weekly grocery bill
Step-by-step explanation:
Part a)
Predictor variable is basically independent variable whose influence is studied on the dependent variable or the outcome variable
Predictor variable - age of drivers
Outcome variable - number of fatalities caused by elderly drivers out of total 100,000 drivers
Part b
Predictor variable - Number of family members
Outcome variable - weekly grocery bill
5th grade math. correct answer will be marked brainliest
Answer:
12 yd and 2 ft
Step-by-step explanation:
I need answer plz I beg I will give you a good rating and also points.
Answer:
44.95+x <= $250
Step-by-step explanation:
its the second option
she spent $44.95 on the 2 books she already bought. if x represents what she has left to spend, the total has to be LESS THAN or EQUAL TO $250 when they're added, so the second option is correct.
1 hour 42 minutes 1 hour 32 minutes+1 hour 38 minuts+1 hour 30 minutes
Answer:
382
Step-by-step explanation:
Just add all of them and 1 hour equals 60 mins
First, lets add the hours.
1 hour + 1 hour + 1 hour = 3 hours
Now, let's add the minutes,
42 minutes + 32 minutes + 38 minutes + 30 minutes = 142 minutes
1 hour = 60 minutes
How many grouped 60's are there in 142? There are 2 full 60s in 142 minutes.
2 60s = 120 minutes
Add 2 hours, but subtract 120 minutes.
142 minutes - 120 minutes = 22 minutes
So, the final answer is 5 hours and 22 minutes.
If this helps, please mark brainliest!
Have a wonderful day!
Before agreeing to purchase a large order of polyethylene sheaths for a particular type of high-pressure, oil-filled submarine power cable, a company wants to see conclusive evidence that the population standard deviation of sheath thickness is less than .05 mm. What hypotheses should be tested, and why
Answer:
H0 : σ = 0.5
H0 : σ < 0.5
Step-by-step explanation:
From the scenario described above, the company wants to see conclusive evidence that the population standard deviation of sheath thickness is less than .05 mm ; THIS SIMPLY means ; REJECTION OF the NULL HYPOTHESIS. This is because once there is a significant or conclusive evidence in hypothesis testing, then we reject the null and support the claim of the alternative hypothesis.
Hence, the alternative hypothesis is ; population standard deviation of sheath Thickness is less than 0.5.
H1 : σ < 0.5 ;
Therefore, our null will be ;
H0 : σ = 0.5
Plsss help!!!!!!!!!!!
How many cubic blocks that are 4 inches on each side can fit into this box? A. 60 B. 20 C. 30 D. 15
Answer:
b
Step-by-step explanation:
3/4 * 8 WITH EXPLANATION PLEASE
I WILL MARK YOU BRAINLIEST
Answer:
6
Step-by-step explanation:
3/4 * 8 is really easy but.....
you multiply the 3/4 * 8/1 (numerators and denominators) 3*8/4*1 = 24/4 = 6.
Answer:
6
Step-by-step explanation:
First you have to set it up 3/4 * 8/1
then you multiply the numerator and denominator to get 24/4 divide 24 by 4 to get 6, your final answer.
if someone share two naira h ow mich Wii remain
PLS I NEED HELP FAST
Find the surface area of the cone.
Answer:
373.8
Step-by-step explanation:
solve for b
b − 326 = 411
Answer:
b = 737
Step-by-step explanation:
b - 326 = 411
+ 326 +326
b = 737
Answer:
b = 411 - 326
b = 85
I hope this will be helpful
Which expression is equivalent to 60 Σ n=1 (2n − 1)2 ? Check all that apply.
9514 1404 393
Answer:
B, D
Step-by-step explanation:
The quadratic expands to ...
(2n -1)² = (2n)² +2(2n)(-1) +(-1)² = 4n² -4n +1
The coefficients can be factored out of the sum, so ...
∑(4n²) = 4∑n² for example
The sum of 60 ones is 60:
[tex]\displaystyle\sum_{n=1}^{60}{1}=1+1+1+\dots+1=60[/tex]
So, the sum can be written as ...
[tex]\displaystyle\sum_{n=1}^{60}{(2n-1)^2}\\\\=\boxed{4\sum_{n=1}^{60}{n^2}-4\sum_{n=1}^{60}{n}+\sum_{n=1}^{60}{1}}\\\\=\boxed{4\sum_{n=1}^{60}{n^2}-4\sum_{n=1}^{60}{n}+60}[/tex]
_____
It appears that the key to choosing the correct answers is paying attention to signs.
Answer: Step number 2 is 287,980
Step-by-step explanation:
Just did the assignment.
Ben and Jane have been approved for a $220,000 loan, 30-year mortgage with an APR of 3.82%. What will be their total interest for the 30 years?
The total interest on the loan will be $457,412,82892.
What is a mathematical equation and expression?A mathematical expression is made up of terms (constants and variables) separated by mathematical operators.A mathematical equation is used to equate two expressions.Given is that Ben and Jane have been approved for a $220,000 loan, 30 - year mortgage with an APR of 3.82%.
We can find the total interest on loan, using the formula -
I = {P(1 + APR/100)^t − P}
The principal amount of loan = $220,000
Compound APR = 3.82%
Time = 30 years
Using the formula, we get -
220,000[1 + 0.0382]^30−220,000
220000{[1 + 0.0382]^30 - 1}
$457,412,82892
Therefore, the total interest on the loan will be $457,412,82892.
To solve more questions on mortgage loans, visit the link below -
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How many places do you need to move the decimal to the left to write the number below in scientific notation ? 1200000000000
I need help on numbers 12,7,9,11,and 13
Answer:
7. 84 feet
9. 12320 yd
11. 30 inches
12. 26400 ft
13. 19 ft
hope this helps
have a good day :)
Step-by-step explanation:
plz plz plz plz help me
Answer:
Solution given:
perpendicular [P]=15m
base[B]=8m
hypotenuse [H]=17m
rate :4 plants per square metre
no of plants=?
we have
Area of triangular garden: ½(P*B)=½(15*8)=60m²
Now
Total no of plants =rate ×Area =4×60=240
Michael needs 240 plants in the garden
Please help me with my homework and thank you
Answer:
14.4 m
Step-by-step explanation:
From the question given above, the following data were obtained:
Hypothenus = 36 m
Height of building (H) = 33 m
Length of shadow (L) =?
The length of the shadow can be obtained as follow:
Hypothenus² = H² + L²
36² = 33² + L²
1296 = 1089 + L²
Collect like terms
1296 – 1089 = L²
207 = L²
Take the square root of both side
L = √207
L = 14.4 m
Therefore, the length of the shadow is 14.4 m
What is the slope of a line perpendicular to the line whose equation is x - y = 6. Fully simplify your answer.
Answer:
-1
Step-by-step explanation:
first put the equation in slop int form:
y= x-6
to find the slope of a line that is perpendicular take the negative reciprical of the slope
so the answer is
-x
jen deposits $9,500 into a bank account that pays her 4.5% simple interest for 5 years. How much interest will she earn over 5 years
Answer:
9927.5$
Step-by-step explanation:
4.5% 0f 9500 is 427.5$ which is growing in 5 years. thats the best explanation i can give.
What is the value of a in the right triangle shown below?
Answer:
Step-by-step explanation:
Which fraction is equivalent to 1?
One-half
Eight-sixteenths
Eleven-twelfths
Nine-ninths
Answer:
wefwdwddwd
Step-by-step explanation:
Answer:
Step-by-step explanation: