Given a right triangle ABC, if the measure of angle A is 77', and cos (77) = sin(0).
what is the value of 0 ?
Answers
==========================================================
Rule:
If cos(A) = sin(B), then A+B = 90
This can be proven through the use of drawing a right triangle with acute angles A and B. Let's say C is the 90 degree angle.
Then note how cos(A) = adjacent/hypotenuse = AC/AB while sin(B) = opposite/hypotenuse = AC/AB. We see that both evaluate to AC/AB. So this confirms cos(A) = sin(B) is true.
The condition that A+B = 90 is from from the fact that any pair of acute angles of a right triangle are complementary angles.
-------------------------
Using that rule, we can say
cos(77) = sin(theta)
leads to
77+theta = 90
and that solves to
theta = 90-77 = 13
Related Questions
HELP NOW PLEASE!!!!! I will give 100 points to whoever will answer this question first
Answers
Answer:
D : 10 feet
Step-by-step explanation:
Hello I think I can help with this.
Now how I would do this given a multiple choice question is kind of use brute force with your given answers to find the solution.
So the formula for area is known as (L x W x H)
or (length x width x height)
Lets see what we are given.
We are given the length which is 12
We are also given the width which is 4 1/2
And if we multiply these we can find the surface area of the base of this rectangular prism so lets do that.
12 multiplied by 4 1/2
=
54
Alright so now we know the base of this rectangular prism is 54 ft²
Now we can start the brute force method. So we are trying to find the height in this problem since we already have the width and length and have worked that out. So now all we do is multiply what we found (54) by the possible answers until one of them gives us the answer 540 ft³.
NOW this is actually really easy because we got 54 as our answer to length x width and our total amount of area is 540.
So instead of brute force we can take an easier route and do 540 / 54 and get an easy answer of 10 which is option D :
10 feet
I hope this helps you understand this a bit better!
If you are confused or have any concerns / questions feel free to comment or message me :)
Answer:
Height = 540/(4.5*12) = 10 feet
Step-by-step explanation:
how would i solve this?
i+i^2+i^3+i^4+i^5+i^6+i^7+i^8+i^9+i^10
please do a step by step process
Answers
Step-by-step explanation:
step 1. I assume i is imaginary
step 2. i^2 = -1, i^3 = -i, i^4 = 1, i^5 = I. . . . and so on
step 3. i - 1 - i + 1 + i - 1 - i + 1 + i - 1
step 4. the result is i - 1.
When you graph two lines to a system what are the 3 possible outcomes?
Answers
Answer:
infinite solution, one solution, no solution
Step-by-step explanation:
hope this helped:)
A classroom of students has their heights measured (in inches) for statistics investigation. The tallest student in the class is 71 inches tall. One student is assigned to record all the values. That student made a mistake when recording one of the values. When they meant to record the 71, they accidentally entered 711. What is the affect of this mistake on the median and IQR?
Answers
Answer:
This mistake has no effect on the median and IQR, since it will be an outlier.
Step-by-step explanation:
xth percentile:
If a measure is said to be in the xth percentile, it means that x% of the measures are smaller than it, and (100-x)% are larger.
Median:
The 50th percentile is called median.
Interquartile Range:
Difference between the 75th and the 25th percentile.
In this question:
Tallest student measures 71 inches, but with a mistake, it was accidentaly entered 711.
However, since the mean and the median are related to the percentiles, in the middle of the distribution, they wont be affected by an outlier such as this.
A road is 3/5
of a mile long. A crew needs to repave 3/7
of the road. How long is the section that needs to be repaved?
Write your answer is simplest form.
Answers
Answer:
9/35
Step-by-step explanation:
3/5 x 3/7
Which is the correct factorization of x 2 - 10x -24? please tell me
Answers
Answer:
-2(5x+11)
Step-by-step explanation: you have to find the polynomial
Answer:
ufmmvfjyffvjjghjghncffgghjvdthvdfbn
19 tens is the same
as
Count forward by fives.
Answers
John is skiing on a mountain with an altitude of 1200 feet. The angle of depression is 21° About how far does John ski down the mountain?
Answers
5 - x/3 for x = -3
Evaluate the expression
Answers
A color printer prints 23 pages nine minutes how many minutes does it take per page
Answers
Answer: 2 pages
Step-by-step explanation:
Answer:
2.55555555555555555555555555556
A cup of beans costs N160. How much
would a similar tin, three times the height
and diameter, full of beans cost?
Answers
Answer:
Below.
Step-by-step explanation:
The volume will be 3^3 = 27 times the volume of the small cup.
Answer is N160 * 27
= N4320.
The cost of a full of beans is N4320 if a cup of beans costs N160 and a similar tin, three times the height and diameter,
What is volume?It is defined as a three-dimensional space enclosed by an object or thing.
We have:
A cup of beans costs N160.
Cost of volume of a small cup = N160
Let V be the volume of a similar cup
V = 3³ = 27
The cost = 27×160 = N4320
Thus, the cost of a full of beans is N4320 if a cup of beans costs N160 and a similar tin, three times the height and diameter,
Learn more about the volume here:
https://brainly.com/question/16788902
#SPJ2
Geometric mean of 45 and 15
Answers
Answer:
30
Step-by-step explanation:
[tex]\frac{45+15}{2}[/tex] equals 30.
Answer:
45 + 15 = 60 divided by 2 is 30
What is the perimeter of the rectangle in the coordinate plane?
13 units
16 units
26 units
30 units
Answers
10+3+10+3= 26 units
the perimeter of the rectangle in the coordinate planes is 26 units
Exit
Justin is going to the school dance. He went to the mall and bought two new shirts for $21.99 each and a new pair of dress shoes for $45.59. Which two operations would be used in order to figure out how much he spent at the store?
A. multiply and add
B. add and subtract
C. multiply and subtract
D. divide and add
Answers
Answer:
its letter A multiply and add
Help ASSp please work out the value of A
Answers
Answer:
A = 3x^2 - 3
---------------
2
Step-by-step explanation:
If the perimeter is 56 cm..
x - 1 + 3x + 3x + 1 = 56
7x = 56
x=8
The x - 1 side = 7
The 3x = 1 side - 25
The ex side = 24
The area of a triangle = base time height divided by 2.
So...
x-1 times 3x divided by 2 is your equation.
3x(x - 1) = 3x^2 - 3
A = 3x^2 - 3/2
Hope this is correct!!!
What is x + x in the mathematics
Answers
Answer:
X+x =2x
Step-by-step explanation:
I think this ans may help you
Answer:
2x
Step-by-step explanation:
x + x also equals x times 2
joey is making a poster for bike safety week. the diameter of circle A is 18 in. If the area of a circle B is 1/5 the area of Circle A what is the area of circle B?
Answers
Circle A’s area is 81pi.
Circle B’s area is 20.2pi, or about 63.42
This is the question I need the answer in 24 house or less please and thank u
Answers
Answer:
Vertex: (–9, 1)
Axis of Symmetry: x = –9
Step-by-step explanation:
x = 9 is the lowest point on the graph. This makes it the x-coordinate of the vertex and the axis of symmetry. Now count how many squares above the x-axis it is. It's 1 square above, right? This means the vertex is (–9, 1).
Hope this helps you. Have a great day!
express (4+7i)(2-i) in the form a+ib
Answers
(4+7i)(2-i)
multiply it out
8-4i +14i -7i squared
i squared is the same as -1
8-4i+14i-7(-1)
8+7-4i+14i
15+10i
divide by common factor which is 5 in this case
3+2i
14) x - 27 0
3
X^3-27=0
X^3-27=0
Answers
Answer:
For the top equation, x = 27 (I think you meant to put x - 27 = 0. If not, I can always edit my answer for you)
For the bottom, x = 3
Hope this helps! Have a grrrreat day lol
Pls help me with this
Answers
Answer:
the third one!
Step-by-step explanation:
Because it says, the SUM of the number, x (or z I can't really see it well) and 1/2, you must add those two together:
1/2 + x
Then it says those two numbers equal to 4, so it would look like this:
1/2 + x = 4
Because you are trying to isolate, and solve for x, you must SUBTRACT 1/2 from both sides of the equal sign:
1/2 + x = 4
-1/2 -1/2
1/2 minus 1/2 would result 0, so there would be x by itself. and 4 minus 1/2 would be 3 and a half ( 3 1/2), so x would be 3 1/2
x = 3 1/2
Hope this helped. If this is incorrect please specify so I can help :)
Write an expression to represent “7 less than 6 times a number n.”
Answers
Answer:
7 < 6n
Step-by-step explanation:
Answer:
6n-7
Step-by-step explanation:
7 Less = -7
6 x n = 6n
Combine an expression we get 6n - 7
to find the value of r, Stephen rewrites 3r - 18 = 27 as 3(r - 6) = 3(9). How could this help Stephen reason the value of r? Explain your reasoning.
PLZ HELP ASAP
Answers
Answer: See explanation
Step-by-step explanation:
We are informed that Stephen rewrites 3r - 18 = 27 as 3(r - 6) = 3(9). This is quite thoughtful of Stephen and it's an easier way to solve the question.
In this case, 3 is a common factor to 3r, 18 and 27. Therefore, we will then have: 3(r - 6) = 3(9).
Since 3 is a common base to both, we are more concerned with the values inside the brackets. This will be:
r-6 = 9
r = 9 + 6
r = 15
Check: 3r - 18
3(15) - 18 = 45 - 18 = 27
Ani spent a total of $7.53 at a store. She bought some cereal for $3.67. She also bought 6 peaches.
If each peach cost the same amount, which equation can be used to find the cost of each peach, P?
A. P = $7.53-6
B. P = $3.67 6
C. P= $7.53 - ($3.67=0
D. P= ($7.53 - $3.67) = 6
E. P= ($7.53 + $3.67) = 6
Answers
Answer:
D
Step-by-step explanation:
It says she spent $7.53 at the store and she bought (SOME) cereal for $3.67
so we have to find how much the 6 peaches cost. To find it out we are going to have to subtract the cereal she bought from $3.67 and the money she wasted total so its going to be D.
Emplea los signos <, > o =, según corresponda
Answers
Answer:
1.≤
2.≤
3.≤
4.≤
5.≤
6.≤
Step-by-step explanation:
di po ko sure kung tama po yan
what is 445 + (67 x 958) x (3n - 31) x 67
Answers
Step-by-step explanation:
1
9
2
5
5
8
6
7
−
1
9
8
9
7
6
6
6
7
+
4
4
5
x+y+x=22
a+a+x=28
y+2y+2a=38
2y*x*2a=?
there are no 0, negative number, or fractions
solve for all variables
Answers
y = 6
a = 10
? = 1920
x + y + x = 22
8 + 6 + 8 = 22
a + a + x = 28
10 + 10 + 8 = 28
y + 2y + 2a = 38
6 + 2(6) + 2(10) = 38
2y * x * 2a =
2(6) * 8 * 2(10) = 1920
Find the area of the triangle.
3 yd!
2.
12 yd
The area of the triangle is
square yards.
Answers
simplify 7/341 and give step by step explanation! I will mark you a brainliest.
Answers
Answer:
it can't be simplified
Step-by-step explanation:
PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA POINTS*..
IM GIVING 40 POINTS !! DONT SKIP :((.
Answers
Answer:
you add 1 to 5 and then you find y but on x you multiple t
