Answer:
In ΔXYZ
∠Y is a right angle ∠X and ∠Z are complementary anglessin X = 12/25-------------
sec X = 1/cos X = [tex]1/\sqrt{1- sin^2X} = 1/\sqrt{1 - 12^2/25^2} = 1/\sqrt{481}/25 = 25/\sqrt{481}[/tex]tan X = sin X / cos X = [tex]12/{25 : {\sqrt{481} }/25 = 12/{\sqrt{481} }[/tex]cos Z = sin X = 12/25Write the equation of the ellipse 4x^2+9y^2+72x+108y+612=0 in standard form.
Answer:
(x+9)^2 + (y+6)^2
9 4 =1
Step-by-step explanation:
I believe this is correct, if not feel free to let me know and I will fix it. I'm sorry in advance if it is incorrect.
You roll a standard number cube. Find P (number greater than 5)
Answer:
1/6
Step-by-step explanation:
The x-intercept of f(x) = log4^x is ?
DONE
Answer:
x-intercept(s): ( 0 , 0 )
y-intercept(s): ( 0 , 0 )
Step-by-step explanation:
Answer:
it's 1
Step-by-step explanation:
got it right on edge
HELPPPPPPPP 17 PTSSSSSSSSSSSSSSSSSS
Answer:
A: 360
Step-by-step explanation:
Split the trapezoid into 2 shapes
Then find the area of the rectangle on the left:
18 × 15 = 270 square yards
Now for the triangle, first find the base by subtracting the 2 parallel lines:
25 - 15 = 10 yards
0.5(10 × 18) = 90 square yards
Add both areas to find total area:
270 + 90 = 360 square yards
All this can be seen in the figure below:
Ashe and her two friends will run a relay race. The length of the race is 4/6 mile. If each person runs the same distance, how far will Ashe run?
Answer:
Ashe will run 6 miles
Step-by-step explanation:
4/6 x 3/1 = 12/6 divided by 6 (for numerator and denominator) = 6/1 = 6
-7 2/3 + ( -5 1/2) + 8 3/4 =
Answer:
- 53/12
Step-by-step explanation:
See the image below:)
I need help help please help
middle left my guy lol..
Ariel receives
$42
for working a full day doing inventory at a hardware store. How much can she get for working
2/7
of a day?
The random variable X is normally distributed with mean of 80 and variance of 36. The 67th percentile of the distribution is
Answer:
82.64
Step-by-step explanation:
Mean = 80 ; σ² = 36 ; σ = √36 = 6
Using the relation :
P(Z < x) = (x - mean) / standard deviation
P(Z < x) = 0.67
Z = invNorm(0.67) = 0.44
Hence,
0.44 = (x - 80) / 6
Cross multiply :
6 * 0.44 = x - 80
2.64 = x - 80
2.64 + 80 = x
82.64 = x
Hence, X = 82.64
The numbers 24, 22, 34, 28, 29, 24, 25 29, a and b have a median of 27 and a mode of 29. Given that a
Answer: Median is 26,5 and modes are 24 and 29
Step-by-step explanation: In increasing order numbers are
22, 24 24, 25 , 28, 29 , 29 , 34. Because amount of number is even
median is (25 + 28) / 2 = 26,5 and modes are 24 and 29 because both
numbers exist twice
Suppose the x-axis of a density graph represents someone's height in inches. If the area under the density curve from 60 inches to 70 inches is 0.75, what is the probability of someone's height being anywhere from 60 inches to 70 inches? O A. 75% O B. 65% C. 70% D. 60% SUBMIT
OPTION A 75% is the correct answer
Which expression is equivalent to square root 8x^7y^8?
Answer: 2x^3y^4 sqrt 2x or C on edge
Step-by-step explanation:
When reaching mile marker 6 on the trail, Randy uses his GPS to find that his current elevation is 6220 feet. If he follows the trail until its end at mile marker 13, his elevation will be 8390 feet. What is the average change in elevation of Randy's position from mile marker 6 to mile marker 13, in feet per mile marker?
Answer:
310 feet per mile marker
Step-by-step explanation:
The average change will be the difference in elevation over the difference in mile markers. Randy’s elevation changed from 6220 feet to 8390 feet, which is a difference of
8390-6220=2170 feet. He started tracking at mile markers 6 to mile markers 13, which is a difference of
13-6=7 miles markers. The average change in elevation is 2170 feet / 7 mile markers = 310 feet per mile marker.
Calculate the volume of the rectangular pyramid below
Answer:
300mm^3
Step-by-step explanation:
formula: [tex]\frac{lwh}{3}[/tex]
10x7.5x12= 900
900/3=300mm^3
HELPPP ASAPPPP ONLY ONE WEEK OF SCHOOL LEFT
Answer:
D, no idea how the other one came to the conclusion that B would be right
f(0) is -3, but there is no zero point at -3 (-3/0)
The graph has no minimum value btw, just a maximum value of 1
pls brainliest
Is this correct? If not which is correct?
f(x) = 2x^2 – 3x - 9
g(x) = 4x^2 – 9
Find (f/g)(x)
Answer:
i dont get it sorry
Step-by-step explanation:
what is the least common denominator of 1/3 and 4/7?? plsss explain
Answer:
21
Step-by-step explanation:
The smallest number that can go into both 3 and 7 as our denominators is 21. This can be worked about by multiplying them together.
(FYI: In some cases, if the product is even, it may not always work to multiply them together)
Answer:
21
hope this helps
have a good day :)
Step-by-step explanation:
3 multiples are 3, 6, 9, 12, 15, 18, 21, 24
7 multiples are 7, 14, 21, 28
so would need to change both denominators to 21 and multiple 7 and to 1/3 to get 7/21 and 3 to 4/7 to get 12/21
Lexie started her homework at 4:30 P.M. She finished at 5:05 P.M. How many seconds did it take her to finish her homework?
Answer:
2100 seconds
Step-by-step explanation:
4:30 P.M. → 5:05 P.M. there are 35 minutes in between.
1 minute = 60 seconds
35 minutes × 60 seconds = 2100 seconds
Grandma Gertrude’s Chocolates, a family owned business, has an opportunity to supply its product for distribution through a large coffee house chain. However, the coffee house chain has certain specifications regarding cacao content as it wishes to advertise the health benefits (antioxidants) of the chocolate products it sells. In order to determine the mean % cacao in its dark chocolate products, quality inspectors sample 30 pieces. They find a sample mean of 4% with a standard deviation of 2%. What is the margin of error at 90% confidence?
a. 1.49%
b. 1.24%
c. 0.62%
d. 0.75%
e. 1.36%
Answer:
c. 0.62%
Step-by-step explanation:
We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.
The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So
df = 30 - 1 = 29
90% confidence interval
Now, we have to find a value of T, which is found looking at the t table, with 29degrees of freedom(y-axis) and a confidence level of [tex]1 - \frac{1 - 0.9}{2} = 0.95[/tex]. So we have T = 1.6991
The margin of error is:
[tex]M = T\frac{s}{\sqrt{n}}[/tex]
Sample of 30, standard deviation of 2%.
Then
[tex]M = T\frac{s}{\sqrt{n}} = 1.6991\frac{2}{\sqrt{30}} = 0.62[/tex]
0.62%, so option c.
2 7/9 divided by 5/6 in fraction.
The fraction after the division is A = 46 / 15
What is a Fraction?An element of a whole is a fraction. The number is represented mathematically as a quotient, where the numerator and denominator are split. Both are integers in a simple fraction. A fraction appears in the numerator or denominator of a complex fraction. The numerator of a proper fraction is less than the denominator.
Given data ,
Let the first fraction be p = 2 7/9
Let the second fraction be q = 5/6
Now , A = p/q
On simplifying the equation , we get
A = 2 7/9 / 5/6
A = ( 25/9 ) / ( 5/6 )
A = ( 25/9 ) x ( 6/5 )
On simplifying , we get
A = 138/45
A = 46 / 15
Hence , the fraction is A = 46/15
To learn more about fractions click :
https://brainly.com/question/29766013
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If taina makes 5 dollars a hour for babysitting, and babysat for 5 hours on monday how much money did she make?
Answer:
25
Step-by-step explanation:
Take the amount earned per hour and multiply by the number of hours to determine the total amount earned
5 * 5 = 25
Answer:
25 dollars on monday
Step-by-step explanation:
5 dollars an hour times 5 hours
5x5=25
3 cm
6 cm
6 cm
6 cm
The area of one of the bases the figure shown above is about 15.6 cm2.
What is the surface area, in cm?, of the figure? Round your answer to the
nearest tenth.
The surface area of given figure = 3×Area of rectangle + 2×area of triangle base.
Surface area = 3×6×3+2×15.6
Surface area = 85.2 cm²
Can someone answer this for me (in the picture)
How many lines intersect at point O?
A.2
B.1
C.4
D.3
Answer:
C. 4 because line o serve as the vertex for each angle there.
y=3x+2
y=3x−6
how many solutions does the system have
Answer:
no solutions
Step-by-step explanation:
The lines are parallel since they have the same slope
y = mx+b where m is the slope
They have different y intercepts (b)
The will never intersect so they have no solutions
ayudaaaaa por favor
Answer:
La respuesta es treinta coma seis.
Espero que esto ayude.
The perimeter of a square piece of gold is 28 millimeters. How long is each side?
Answer:
7 millimeters
Step-by-step explanation:
Perimeter is the distance around an object.
The object is a square so all sides are equal. This means that we can do 28mm / 4 and get our answer of 7 millimeters.
HELPPP ME FIND THE LETTER CODE PLEASE I DONT WANNA FAIL SUMMER SCHOOL
Answer:
Ian SomerhalderHappy “3rd” Birthday to our smart, energetic, lively and mischievous Carmelo!!!
In these three short years, this little boy has brought so much joy to all of our lives. The one that makes sure we all get our cardio workout in everyday because of his inquisitive self. I would not have it any other way!! Carmelo, thank you for making us COMPLETE! ❤️ May God bless you every day of your life my son!
NEED HELP END OF THE YEAR TEST
Graham was given the following function table.
What is the output if x=8?
Answer:
37
Step-by-step explanation:
+ 5 in the y column every row, so 8 would be 37
Answer:
37?
Step-by-step explanation:
2 7
3 12
4 17
5 22
6 27
7 32
8 37