Answer:
Step-by-step explanation:
Solution: The one full rotation of the minute hand on the clock represent one hour. So in 3 hours the minute hand will rotate 3 x 360 degrees or 1080 degrees or 6. 3 complete rotations with the minute hand at finish at the start of the three hours.
What is the multiplicative in verse of -1/14?
Answer: -14
Step-by-step explanation:
The multiplicative inverse is the reciprocal of the number.
1/(-1/14) = -14
Answer:
-14
Step-by-step explanation:
one of the multiplicative inverses is the also the reciprocal of the number -14
Please help, thank you!
Find the exact value:
cos Ф=3/5 where 270≤Ф<360
find cos2Ф
Answer:
[tex]cos2\theta = -frac7{25}[/tex]
Step-by-step explanation:
By using the double angle formula for cosine [tex]cos 2\theta = 2cos^2\theta -1[/tex], replacing the value we have we get
[tex]cos 2\theta = 2 (\frac35)^2 -1 = 2\frac9{25} -1 = \frac{18}{25}-\frac{25}{25} = -\frac{7}{25}[/tex]
Answer:
-7/25
Step-by-step explanation:
Disclaimer: I'm using variable x instead of theta.
Step 1: Simplify cos 2x.
[tex] \cos(2x) = \cos {}^{2} (x) - { \sin {}^{2} (x) }^{2} [/tex]
[tex] \cos(2x) = \cos {}^{2} (x) - (1 - \cos {}^{2} (x) ) [/tex]
[tex]2 \cos {}^{2} (x) - 1[/tex]
We know that cos x= 3/5 so that means
[tex] 2(\frac{3}{5} ){}^{2} - 1 = 2( \frac{9}{25} ) - 1 = \frac{18}{25} - 1 = \frac{ - 7}{25} [/tex]
So the exact value of cos 2x=
[tex] \frac{ - 7}{25} [/tex]
There is another way to find this but this is easier.
The set of three lengths that will form a right triangle are
О 21, 31, 33
O 16,30,34
0 17,22,38
O 13, 20, 25
Answer:
O 16,30,34
Step-by-step explanation:
To confirm, use Pythagorean theorem to check.
(16)² + (30)² = (34)²
256 + 900 = 1156
=> It is correct
=> Therefore, this set of three lengths will form a right triangle
Two expressions are shown below:
1. 4s +2
2. s x s x s x s+ h x h
Are these expressions equivalent? Explain why or why not.
Answer:
They are not equal
Step-by-step explanation:
So, lets start by simplifying the expressions
Expression 1:
4s + 2
Expression 2:
s x s x s x s + h x h
s^4 + h^2
We have two different expressions now, they don't seem to be equivalent, since in the first one, we have 4 x s + 2, but in the second one, it is s x s 2 times added with h x h.
If you have any questions, let me know in the comments. If you could mark this answer as the brainliest, I would very much appreciate it! :D
Graph y=-6(3)^x
please do the table and the graph
20 POINTS!
Answer:
Explanation to the answer below... (Answers in the Explanation)
Step-by-step explanation:
We Know that our rule is y = [tex]y = -6(3)^{x}[/tex] , which means we can use this rule to find y from x. Since we don't know what X, is, we have to assume numbers like 1, to 7. And there is no space to write on the graph, I'll put a virtual copy of a graph.
1st Point,
[tex]y = -6(3)^{x}\\y = -6(3)^{1}\\y = -6(3)\\y = -18\\x = 1, y = -18[/tex]
2nd, point
[tex]y = -6(3)^x\\ y = -6(3)^2\\y = -6(9)\\y = -54\\x = 2, y = -54[/tex]
3rd Point
[tex]y = -6(3)^x\\y = -6(3)^3\\y = -6(27)\\y = -162\\x = 3, y = -162[/tex]
4th Point
[tex]y = -6(3)^4\\y = -6(81)\\y = -486\\x = 4, y = -486\\[/tex]
5th Point
[tex]y = -6(3)^5\\y = -6(243)\\y = -1458\\\x = 5, y = -1458[/tex]
6th Point
[tex]y = -6(3)^x\\y = -6(3)^6\\y = -6(729)\\y = -4,374\\x = 6, y = -4,374\\[/tex]
7th Point (Last Point)
[tex]y = -6(3)^x\\y = -6(3)^7\\y = -6(2,187)\\y. = -13,122\\x = 7, y = -13,122[/tex]
Let's now plot them on the Graph, the values are so big, the graph might look a little odd.
Always remember that we can continue the points infinitely, and there is no stop, The Graph is attached below...
Adrian bought a frame for a photograph that he took. What is the area of the frame not covered by the picture
Solve the following: 6(x-2)>15
6(x-2) > 15
6x - 12 > 15
6x > 27
x > 27/6
Hope it helps!
Answer:
x>4.5
Step-by-step explanation:
6(x-2)>15
We do this is as if it were an equation:
6(x-2)>15
Expand the brackets:
6x-12>15
Add 12 to both sides:
6x-12+12>15+12
Simplify:
6x>37
Now we divide both sides by 6:
6x÷6>37÷6
x > 4.5
If we put 5 into the original equation as it is more than 4.5, we get:
6(5-2)>15
We can simplify the brackets or expand first:
Simplifying the brackets first:
6(3)>15
18>15 ✅
Expanding first:
6(5-2)>15
30-12>15
18>15 ✅
find the area and perimeter of this figure
Answer:
Step-by-step explanation: it is 37 and per =45
There are 30 students in a class. If 18 of them are girls, find the number of boys.
Answer:
12 boys
Step-by-step explanation:
30 in total - 18 girls = x boys
30 - 18 = 12 boys
Tori spends equal amounts of time on homework from each of her subjects. She spends 1 hour altogether on her homework each night. If Tori spends 1/4 an hour on Chemistry, how many subjects does she study?
Answer:
4
Step-by-step explanation:
Quarter hour on chemistry
Quarter hour on class 2
Quarter hour on class 3
Quarter hour on class 4
Total time....One hour
Given the following rectangle and circle, at what approximate value of x are the two areas equal? x ≈ 5.8 x ≈ 3.4 The curves do not intersect, so there is no solution. x ≈ 8.7
The approximate value of x will be approximately equal to 3.4
Area of triangle and circleThe formula for calculating area of rectangle is expressed as:
A = lw
l is the lengthw is the widthAr = (3x-1)(x+2)
Ar = 3x^2+6x-x-2
Ar = 3x^2 + 5x - 2
For the circle
Ac = πr²
Ac = 3.14(x-3)²
Ac = 3.14(x²-6x+9)
Ac = 3.14x² - 18.84x + 28.26
If the area are equal;
3x² + 5x - 2 = 3.14x² - 18.84x + 28.26
3.14x² - 3x² - 5x - 18.84x + 30.26 = 0
0.14x²-23.84x+30.26 = 0
On factorizing the equation, the approximate value of x will be approximately equal to 3.4
Learn more on area of rectangle here; https://brainly.com/question/25292087
-5.7 + (-4.2)
help please
Answer:
-5.7 + (-4.2) is your question and -9.9 should be the answer for you
Step-by-step explanation:
hope this helps please mark me brainliest
A guy wire which is 55 feet long and the distance between the centre of the pole to the guy wire is 35 feet. At what height is the base of the triagular structure atop of the pole from the ground?
Write your answer as a decimal. Round to the the nearest 100ths place.
yes we are you doing today I think I have a
27. Two of the smallest mammals on Earth
are the bumblebee bat and the Etruscan
Pygmy shrew. How much shorter is the
bat than the shrew?
Etruscsn small mammals on earth the Bumblebee bat
Kyra does homework at 4:30 works for 35 minutes kyra finishes her homework at /answers 5:10 4:45 4:50 5:00 5:05
Answer:
5:05
Step-by-step explanation:
Since she starts at 4:30 for 35 minutes, it is going to be 35 minutes after 4:30. Which is 5:05.
Your welcome, and feel free to comment if you have any questions! :D
If 5 boxes cost $35, what is the cost per box?
Answer:
7 dollars for one box is the answer
Which statement about the location of K on the number line is true? Statement 1: The location of the point K can be described as -(-3). Statement 2: The location of point K can be described as the opposite of -3.
A: Only statement 1 is true
B: Only statement 2 is true
C: Neither statement 1 nor 2 are true
D: Both statement 1 and statement 2 are true
Answer:
I think I'm correct I don't know but I think the answer is B
A field of wheat measures 15 metres by 18 metres. What is the area of the field and perimeter of the field
Answer:
Down below
Step-by-step explanation:
Area is 270 metres and perimeter is 66. I got the area by multiplying the length and width (15 and 18). I got the perimeter by multiplying 15 by 2 and 18 by 2. I do this because this is a rectangle and the sides are not all even. So, two sides would be 15 and two sides would be 18. I multiply 18 by 2 and 15 by 2 and add the sums together to get 66.
If I'm wrong, I'm sorry. I'm fairly certain that this is right.
Evaluate. Write your answer as a fraction or whole number.
(3/4) 3
Answer:
9/4 is as a fraction ..
I hope it will help you .
A rental car agency charges $160.00 per week plus $0.25 per mile to rent a car. How many miles can you travel in one week for $360.00?
The number of miles you can travel in one week for $360.00 is. (Type a whole number.)
I need the answer quick
Answer:
Step-by-step explanation:
M = miles
.25M + 160 = 360.00
.25 = 360 - 160
200/ .25
M = 800 miles
In order to prove the triangles congruent by ASA, which statement needs to be given?
A) LK=DE
B) DE=JL
C)JK=DE
D) DF=LJ
Which of these expressions are equivalent to 7 1/2
Answer:
it's 7.5
Step-by-step explanation:
1/2 as a decimal is 0.5
What is the area of this triangle?
Enter your answer in the box.
Answer:
i think 8cm is triangle area
Step-by-step explanation:
because i saw that 8cm on the side so I told 8cm the triangle.
Please answer with steps
{0.4), (-4,-6)
help me..........................
16. a
17. a
18. d
19. b
20. c
21. c
22. d
23. c
24. (please zoom in the circle so i can see the radius)
Wrong because when u dived 300 by 200 ur answer sould turn out be 1.5
Answer:
Step 1: Divide 300 by 200 to get the number as a decimal. 300 / 200 = 1.5
Step 2: Multiply 1.5 by 100. 1.5 times 100 = 150. That's all there is to it!
Note that you can reverse steps 1 and 2 and still come to the same solution. If you multiply 300 by 100 and then divide the result by 200, you will still come to 150!
Step-by-step explanation:
hope it helps
Properties of equilateral triangles…………………….
Answer:
y = 10, x = 4; each side = 20 units
Step-by-step explanation:
In an equilateral triangle, all the sides & angles are equal to each other. So,
=》AC = AB = BC
=》20 = 2y = 5x
Now,
■ AC = AB
20 = 2y
20/2 = y
10 = y
■ AC = BC
20 = 5x
20/5 = x
4 = x
Hope it helps ⚜
I have a bag of stickers that is 6/8 of my sticker collection. I give 4/8 of my entire stick collection to my sister. What fraction of my sticker collection do i have left?
Answer: 2/8
Step-by-step explanation:
Think of it as 6 - 4. We know that 6 - 4 is 2, so the same thing apple is to 6/8 - 4/8. So, you have 2/8!
(show ur work) what is 13 1/2 ÷ 8 2/4 = ?
Please help! 20 points thanks :)
Answer:
Option A
Step-by-step explanation:
We use the slope formula:
[tex]\frac{y_{2}-{y_{1}} }{x_{2} -x_{1} }[/tex]
We substitute the values given and see which option corresponds with our equation:
[tex]\frac{-4-(-6)}{-2-3}[/tex]
Option A must be correct