Which trig ratio would you use to solve for the missing angle measure? 5 A) Cos! 26 26 B Cos-1 5 C) Sin 26 Sin? 26 5
Answers
Answer: Choice A) [tex]\cos^{-1} \frac{5}{26}[/tex]
You could also write [tex]\cos^{-1} \left(\frac{5}{26}\right)[/tex] which is the same as writing [tex]\arccos\left(\frac{5}{26}\right)[/tex]
Arccos stands for "arccosine", which is effectively the same as inverse sine. The notation [tex]\cos^{-1}[/tex] means inverse cosine.
We use the cosine rule because
cos(angle) = adjacent/hypotenuse.
isolating the angle leads to
angle = arccos(adjacent/hypotenuse)
We can think of arccosine as an operation to undo the cosine function. It's similar to how division is the opposite of multiplication.
Related Questions
Nicole bought a pair of shoes for
$37.93. The sales tax was $2.84. How
much money did Nicole spend on the
pair of shoes before taxes?
Answers
Answer:
$35.09
Step-by-step explanation:
37.93- 2.84= 35.09
Answer: 35.09$
Step-by-step explanation:
subtract the taxes from the total i think
Miguel is making trail mix. He uses 5 1/3 ounces of nuts and 2 3/4 ounces of raisins. Which
of these is a reasonable estimate for how much more nuts Miguel uses than raisins?
HELP FAST
I GOiNg GET HAIR LINe
SO PLS HELP WUICK
Answers
Answer:
the answer is B
Step-by-step explanation:
what is the sum of 6 1/2 + 2 1/3
Answers
Answer:
8 5/6
common denominator
Answer:
8 5/6
Step-by-step explanation:
D. Problem Solving
11.
A paper balloon costs Php 7.50. What is the cost if I buy 6 balloons?
Solution:
12. My Auntie bought 3 kg of pork and 2.5 kg of chicken. If the pork costs Php110.50 per
chicken?
kilogram and she spent a total of Php580.00, how much did she pay for a 2.5 kg of
Solution:
13.
Item A costs Php22.50 per kilogram and item B costs Php18.25 per kilogram. Which costs less
Solution:
14. Marianne pays Php79.85 each month as membership cost to her gym. How much money does
she pay annually?
Solution:
15. Gary surveyed his classmates at the school and found out that they play sports for about 3.8
hours per week. About how many hours do his classmates spend while playing sports in a year that has 52 Weeks?
Solution
that has 52 weeks?
kg of o
Answers
Answer:
11. P7.50 x6 = P45.00
12 P580 - (P110.50 x 3) = P 580 - P 331.5 = P248.50
13. Item B costs less
14. P79.85 x12 months = P958.20
15. Given: 3.8 hours per week
52 weeks x 3.8 hours = 197.6 hours
g (15 points) Suppose 42 out of 600 rats exposed to a potential carcinogen develop tumors. A control group of 350 rats not exposed to the carcinogen develops 13 tumors. Based on these data, computed (a) the relative risk, (b) the attributable risk, and (c) the odds ratio. Do these indicators suggest that there is a relationship between exposure and tumor risk
Answers
Answer:
a) The relative risk is 1.8[tex]\overline{846153}[/tex]
b) The attributable risk is [tex]0.69 \overline{047619}[/tex]
c) There is a relationship between exposure and tumor risk
Step-by-step explanation:
The number of exposed rats that develop tumors, a = 42
The number of rats exposed to the carcinogen = 600 rats
The number of exposed rats that did not develop tumors, b = 600 - 42 = 558
The number of not exposed rats in the control group = 350 rats
The number of rats that develop tumors in the control group, c = 13 tumors
The number of not exposed rats that did not develop tumors, d = 350 - 13 = 337 rats
a) The relative risk, RR = a/(a + b)/(c/(c + d))
∴ RR = (42/(42 + 558))/(13/(13 + 337)) = 49/26 = 1.8[tex]\overline{846153}[/tex]
b) The attributable risk = (a - c)/a
∴ The attributable risk = (42 - 13)/42 = [tex]0.69 \overline{047619}[/tex]
c) The odds ratio = (a·b)/(c·d)
∴ The odds ratio = 42 × 558/(13 × 337) = 23439/4381 ≈ 5.35
Given that the result of attributable risk is positive, there is an indication that there is a higher probability to develop tumor when exposed to the potential carcinogen, therefore, there is a relationship between exposure and tumor risk
8 1/3 33/4 8.287 8.29 order from least to greatest
Answers
Answer:
33/4 - 8.287 - 8.29 - 8 1/3
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pls can i get brainliest it took soo long to figure out
Help asap last question
Answers
Answer:
A
Step-by-step explanation:
You can substitute any number for x in answer choice A, and the equation will always be true.
Please help me please !
Answers
Answer:
the one on the left is y=2/3x+1 and the one on the right is y=-4x+5
Step-by-step explanation:
Select the correct comparison
A. The typical value and the spread are both greater in set A
B. The typical value is greater in set A The spread is greater in set
C. The typical value is greater in set 8 The spread is greater in set A
D. The typical value and the spread are both greater in set
Answers
Answer:it’s b
Step-by-step explanation:
how to solve 13p-6=-33
Answers
Answer:
The exact form: =- 27/13
Mixed number form = -2 1/13
Step-by-step explanation:
You move all of the terms that do not contain p to the right side and solve.
Answer:
use g00gle
Step-by-step explanation:
go to g00gle
hit the camera thing n take a picture of yo problem
The stem-and-leaf plot represents the distances, in miles, people in an office drive to work each morning.
How many people drive 20 miles or fewer to work?
Enter your answer in the box.
A stem-and-leaf plot with a stem value of 1 with a leaf value of 5, 5, 6, 6, 7, 7, 8, 8, a stem value of 2 with a leaf value of 1, 4, 5, 9, and a stem value of 3 with a leaf value of 0, 5, 5, 6.
Key: 1|5 means 15
Answers
Answer:
8
Step-by-step explanation:
The system has no real solutions. What does this indicate about the worker's arms and the measuring tape? They will never be at the same height at the same time. They will be at the same height exactly once. They will be at the same height at two different times.
Answers
Answer:
A
Step-by-step explanation:
They will never be at the same height at the same time.
Answer:
Your answer will be the first choice or A
Step-by-step explanation:
They will never be at the same height at the same time.
HAVE A GREAT DAY AND STAY SAFE!
Q. A mechanic has a radiator hose that
measures 32 feet long. It needs to be cut into
pieces equaling 5 feet 3 inches. How many
whole pieces can it be cut into?
A. 4 pieces
B. 6 pieces
C. 7 pieces
D. 8 pieces
Answers
explanation
PLS HELP!!! Angle 3 and Angle 8 are congruent
True or false
Answers
Answer:
false
Step-by-step explanation:
Answer:
False
Step-by-step explanation:
something congruent is similar in shape
4. According to the graph above, which of
the following best represents the number of
calories from protein a person on a 2,200-
calorie diet should consume?
A. 450
B. 550
C. 625
D. 650
Answers
Answer: B:550. You do percent over 100 equals part over whole.you put 25 as your percent over 100 then you put 2,200 as your whole put x on part then you multiply 25x2,200=55,000 then you dived 55000 and 100 and you get 550
Rewrite the funtion of f(x)=5(x-4)^3 + 6 with y instead of x
Answers
Answer:
f(y)=5(y-4)^3 + 6
Step-by-step explanation:
Given that
f(x)=5(x-4)^3 + 6
Now we have to rewrite the above function and put y in place of x
i.e.
f(y)=5(y-4)^3 + 6
Therefore the above represent the function in y form
Hence, the same would be relevant
PLEASE HELP!! Find the amount after 6 years if $1000 is invested at an annual rate of 4% compounded:
a) Annually
Amount - $
b) Semiannually
Amount $
c) Quarterly
Amounts
d) Monthly
Amount: $
Answers
Write the 0.5% in two other forms (fraction and percent).
Answers
which of these is a trinomial\
A. x+2y^2-7
B. 5xy
C. 2x-7
D. 2x^3-7y^3
Answers
i hope this helped
Item 13
Write an explicit rule for the recursive rule.
$a_1=16,a_n=0.5a_{n-1}$
Answers
Answer:
Step-by-step explanation:
[tex]a_{1}=16[/tex]
[tex]r=\frac{a_{n}}{a_{n-1}} =0.5\\a_{n}=a_{1}r^{n-1}=16(0.5)^{n-1}[/tex]
[tex] \frac{2}{6 } + \frac{1}{4} = [/tex]
how do we solve?
Answers
Answer:
7/12
Step-by-step explanation:
We cannot add fractions without the same denominator. 4 does not equal 6
ok
2/6 is the same as 4/12 because we multiply proportionately
we multiply the numerator and denominator by the same factor
2/6 x 2/2 = 4/12
now 1/4 is the same as 3/12 because we multiply by 3x3
(realize something we are not changing the value of the fraction. 2/2 is the same as 1 and 3/3 is also the same as 1)
now they have the same denominator
4/12 + 3/12+ = 7/12
The Shoes cost $42
Each pack of socks costs $1.50
Martha has $53 to buy shoes and socks. If Martha buys one pair of shoes, what is the greatest number of packs of socks she can buy?
Answers
Answer:
Martha can buy 7 packs of socks.
Step-by-step explanation:
Martha has $53
Shoes = $42
Socks = $1.50 each
First subtract 42 from 53 to figure out how much is left:
⇒ $53 - $42 = $11
then divide the answer by how much each pack of socks cost:
⇒ [tex]\frac{11}{1.50}[/tex] = 7.33
next, take the whole number of the answer and multiply that by $1.50 to figure how much 7 pack of socks cost:
⇒ 7 socks x $1.50 = $10.50
subtract the answer from $11 to figure out how much remains:
⇒ $11 - $10.5 = $0.50
Answer:
She can buy 7 packs of socks
If the correlation coefficient in an ordinary least squares regression = 1.00, then A. all the data points must fall exactly on a straight line with a positive slope. B. all the data points must fall exactly on a straight line with a slope that equals 1.00. C. all the data points must fall exactly on a horizontal straight line with a zero slope. D. all the data points must fall exactly on a straight line with a negative slope.
Answers
Answer: Option A is correct.
Step-by-step explanation:
The correlation coefficient(r) is a statistical measure that computes the strength of the relationship between two variables.It lies between -1 and 1.
If the correlation coefficient in an ordinary least squares regression = 1.00.
That indicates that there is a perfect relationship between the variables.
i.e. all the data points must fall exactly on a straight line with a positive slope. .
[when r is positive, the slope of the line is positive].
i.e. option A is correct.
All the data points must fall exactly on a straight line with a positive slope. Then the correct option is A.
What is the correlation coefficient?It is a statistical concept that helps in establishing a relation between the predicted and actual value obtained in a statistical experiment. It explains the exactness of the predicted value and actual value.
If the correlation coefficient in an ordinary least squares regression = 1.00.
The correlation coefficient lies between -1 to 1.
If the correlation coefficient in an ordinary least squares regression is 1.00.
Then it indicates that there is a perfect relationship between the variables. That is all the data points must fall exactly on a straight line with a positive slope.
Thus, the correct option is A.
More about the correlation coefficient link is given below.
https://brainly.com/question/12400903
i don't get how to do this one
Answers
The x-coordinates of the points (112,−3) and (112,3) are the same and their y-coordinates are opposites. What does this mean in terms of the positions of the points?
Answers
Answer:
They are reflected across the x-axis
Step-by-step explanation:
What's the value of (5³)¹. I need a explanation.
Answers
Answer:
125
Step-by-step explanation:
We can first multiply the exponent outside the parentheses by the exponent inside the parentheses.
3*1 = 3.
Now we can solve.
5³ = 125
And there is your answer. Hope this helps. Have a nice day.
Find the
1. range
2. domain
3. intervals where the graph is positive
Answers
Answer:
i need more info on the subject like wahts the angle your putting it at
Step-by-step explanation:
PLEASE HELP ME WILL GIVE BRAINLISTTTTTTTTTTTTTTTTTTTTTTTTT
Answers
Answer: I think its A
Step-by-step explanation:
plz help will mark as brainliest
Answers
Answer:
X = 36 Plz mark brainliest :)
Step-by-step explanation:
This is quite easy actually. If you look on the right you see that the exterior angle next to x is 144 degrees. We know that a straight line is 180 degrees so to find x we can do 180 = x + 144.
Answer:
∠ACB = 36°
∠ABC = 60°
Step-by-step explanation:
∠ACB = 180 - 144 (Linear Pair)
therefore, x = 36°
∠ABC = x + 24°
∠ABC = 36 + 24
∠ABC = 60°
A game has a ten sided die. What is the probability of rolling a number less than 4 or a multiple of 3?
Answers
Answer:
6/10 or 3/5
Step-by-step explanation: