Because sine and cosine are complements, we will have that:
cos(60°) = 1/2.
Which statement is true?First, because cosine and sine are complements, we know that:
cos(x) = sin(x + 90°).
cos(90° - x) = sin(x).
We will use the second relation, with x = 30° we can write:
cos(90° - 30°) = sin(30°)
cos(60°) = sin(30°)
And we know that sin(30°) = 1/2
Then we also have cos(60°) = 1/2.
So the correct option is d.
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Answer:
D- cos 60° = 1/2, because the cosine and sine are complements
Step-by-step explanation:
Got it right on test:)
Which measurement is closest to the volume of the sphere in cubic inches ?
A sphere is a three-dimensional figure where the volume is given as:
The volume of a sphere = 4/3 πr³
The volume of the sphere is 3754.7 m³.
The measurement closest to the volume of the sphere is 3431.4 m³
Option B is the correct answer.
What is a sphere?It is a three-dimensional figure where the volume is given as:
The volume of a sphere = 4/3 πr³
Example:
The volume of a sphere with a radius of 2 cm is 32π/3.
We have,
The radius of the sphere = 8 m
Now,
The volume of the sphere.
= 4/3 x π x r³
= 4/3 x 22/7 x 8 x 8 x 8
= 3754.7 m³
This is closest to the 3431.4 m³
Thus,
The volume of the sphere is 3754.7 m³.
The measurement closest to the volume of the sphere is 3431.4 m³
Option B is the correct answer.
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hiiii everyone my previous account has been deleted who knows me plz follow
Answer:
I don't know you but I can follow you if you want
Someone help me please what is 4.3 x 20
Answer:
86
Step-by-step explanation:
Answer:
86
Step-by-step explanation:
Multiply the two numbers together as if there was no decimal, then move the decimal in the number of places that it is given in one of the factors.
17 POINTS! I will also give Brainliest!
Find the perimeter of the coordinates below:
Figure PQRST is shown. P is at negative 2, 11. Q is at negative 4, 5. R is at 2, 0. S is at 1, 7. T is at 8, 7.
37 units
38 units
39 units
40 units
Answer:
c 39
Step-by-step explanation:
Parameter is the sum of the lengths of all sides of a polygon. The sides of the polygon are PT, TS, SR, RQ, and QP. To get the length of a side, we use the distance formula: Each vertex in the polygon has its corresponding points:\
So to get the length of side PT, we use the distance formula and the vertices of side PT:
The length of PT is
The same procedure is done for the other 4 sides and the following are the answers:
And by adding all the sides, you get the perimeter:
By rounding off, the answer is 39 units.
have a nice day
Figure 1 is dilated to get Figure 2.
What is the scale factor?
Enter your answer in simplest form in the box.
Two trapezoids with the same shape but different sizes. One trapezoid has a side measured at 8 units and is labeled figure 1. The other trapezoid has the corresponding side measured at 18 units and is labeled figure 2.
Answer: what is a scale factor
Step-by-step explanation:
Fill in the blank to make an equivalent ratio.
4:7 = ______ : 56
Answer:
4:7 = 32:56
Step-by-step explanation:
4 x 8 = 32
7 x 8 = 36
Hope this helped!
PLZZZZZ give me brainliest
Answer: 32:56
Step-by-step explanation:
because first I divided 56/7=8 and then did 4*8=32. You're welcome!!! c:
Describe how to find the slope and y intercept of 2x+3y=6, then describe how would you graph the line.
Answer:
Step-by-step explanation:
In order to convert the standard form equation we are given now into slope-intercept form, we need to get y on one side by itself and solve for y.
Work.
2x+3y=6
-3y -3y
2x=6-3y
-6 -6
2x-6=-3y
/-3 /3
-2/3x+2=y
y=-2/3x+2
Now that it is in slope intercept form, we can identify the y intercept and slope.
y-int=(0,2), slope=-2/3
I would graph the line by first plotting the y-intercept at the point (0,2). From there, I would plot the slope by going down 2 blocks and moving 3 blocks to the right. Then I would connect the two points with a ruler to get my line since you only need two points to create a line.
What is the perimeter of a square if the length of one of the diagonals is 12 cm?
6v2 cm
2412 cm
48 cm
24 cm
Answer:
Step-by-step explanation:
Use Pythagorean theorem to find the length of the square.
Length of the square = a
a² +a² = diagonal²
2a² = 12²
2a² = 144
a² = 144 ÷ 2
a² = 72
[tex]a =\sqrt{72}\\\\ = \sqrt{2*2*2*3*3}\\\\ = 2*3\sqrt{2}\\\\a = 6\sqrt{2}\\\\\\\\Perimeter= 4a\\\\ = 4*6\sqrt{2}\\\\= 24\sqrt{2} cm[/tex]
Which of the I-values are solutions to both of the following inequalities?
19 < c and r < 25
Choose all answers that apply:
А
= 18
B
= 20
c
= 27
Give one pair of supplementary angles and one pair of vertical angles shown in the figure below.
Answer:
Supplementary- 5 and 6
Vertical- 1 and 6
Step-by-step explanation:
5 and 6 are supplementary, because they make a straight line together. 1 and 6 are vertical angles, bu the vertical angles congruence theorem.
What is the area of this parallelogram?
4.9 cm²
12.25 cm²
17.15 cm²
24.01 cm²
Parallelogram A B C D is composed of a square and two triangles. The square has a length and height of 3.5 centimeters each. There are two identical triangles. Each triangle has a base of 1.4 centimeters and a height of 3.5 centimeters.
Answer:
17.15
Step-by-step explanation:
Answer:
17.15cm
Step-by-step explanation:
I did the quiz and got it right (K12)
6x + 8
10x
60°
A) 64°
C) 70°
B) 45°
D) 50°
Shane bought an 18 pound bag of dog food. He feeds his dog pound of dog food 5/3 for each meal. If Shane feeds his dog twice a day every day, how many days will the 18 pound bag of dog food last?
Answer:
18 pounds of dog food will last 3 days.
Step-by-step explanation:
We know that he has 18 pound of dog food and he is giving 3 pound of food twice every day, so 3 * 2 would be 6. So we need 6 pounds of dog food is being fed every day. Since we want to find out how much dog food 18 pound bag could last, you would divide 18 by 6 so 18/6 would get you 3. So we know 18 bag of dog food will last 3 days.
2/x + 5/3 = 7/2, trynna solve for x
Answer:
x= 12/11
Step-by-step explanation:
Identify the slope and the y-intercept
y = 4x-7
Step-by-step explanation:
y = 4x - 7
Comparing the given equation with y = mx + c Then
slope (m) = 4
y -intercept (c) = - 7
Hope it will help :)
Answer: the slope is negative 4
Step-by-step explanation:
because its ez
if there is a remainder, express
Answer:
Once you have the answer in division the same way - divide, multiply, subtract, bring down and then you're going to let a remainder. Instead of writing R and then the number, you are going to take your remainder and make it the numerator of a fraction.
Step-by-step explanation:
I majored in Mathematics
help me I need this now!!!!!!!!!
Answer:
45
Step-by-step explanation:
All angles of a triangle should add up to 180
35 + 80 + 45 = 180
-37=5w-7
w=
Please I need an answer ASP
Answer:
-6
Step-by-step explanation:
-37+7=5w
-30=5w
w=-30÷5
w=-6
Answer:
w=-6
Step-by-step explanation:
-37=5w-7
-37+7=5w-7+7 (add 7 both sides)
-30/5=5w/5 (divide both sides by 5 to remove 5 and make it equal to w)
-6=w or w=-6
To verify the answer:
5(-6)-7
-30-7
-37
guys patulong naman.
Answer:
Step-by-step explanation:
i dont know what patulang naman but you have to make your own
Which set of ordered pairs represents y as a function of x?
a
{(0, 1), (2, 4), (5, -1), (2, 5)}
b
{(1, 1), (2, 2), (3, 3), (1, 0)}
c
{(4, 1), (4, 2), (4, 3), (4, 4)}
d
{(1, 4),(2, 4), (3, 4), (4, 4)}
. To convert the ratio of 3:5 to 5:6, which number should be added on both?
Answer:
7
Step-by-step explanation:
3:5 + 7 = 10:12
10:12 when shortened is 5:6
2. What are the zeroes of P(x) = x3 – 6x2 – x +62
-6, -1, 1
A.
C. 6, -1, 1
B. -6, -1, -1
D. 6, 1, 1
Step-by-step explanation:
if u mean (x^3 -6x^2 -x- 6) then the answer is C
(6,-1,1)
..................,..........
but if u mean P(x) = x3 – 6x2 – x +62
then the answer is None of the above
-2.724
4.361+1.9328i
4.361+1.9328i
Amanda must read a 259−page book for her history class over the next week. Amanda has found that she can read 37 pages in a hour. Complete the table, select the appropriate graph, and enter an equation to represent the number of pages that Amanda has left to read with relation to time. Use variable x for hours.
Answer:
I dont have an answer but here is a example I hope it helps
Step-by-step explanation: Josie selected a number n. She divided n by 2 and then subtracted ½ from the result. She took
half of that result and then subtracted ½ to get the final result of 10. What is the value of n?
Let’s start by writing Josie’s first step as an expression. Dividing n by 2, then subtracting ½ from
the result would be (n/2) – ½. If we build on this expression with the information in Josie’s
second step, we get ½((n/2) – ½) – ½. Knowing the final result is 10, we can set up the equation
below, and solve for n as follows:
½((n/2) – ½) – ½ = 10
½(n/2) – ¼ - ½ = 10 (using the distributive property)
¼n – ¼ - ½ = 10 (multiplying to eliminate the parentheses)
¼n – ¾ = 10 (combining like terms)
¼n = 10¾ (adding ¾ to both sides of the equation)
n = 43 (dividing both sides of the equation by ¼)
Last week Maria ran 19 miles less than Arjun. MAria ran 8.7 miles. How many miles did Arjun run?
Answer:
22.7 miles
Step-by-step explanation:
19+8.7=22.7
I will give
0.45×104
Answer:
46.8
Step-by-step explanation:
0.45*104=46.8
(This is a question from arithmetic sequence) Jay’s dog weighs 35 kilograms and is overweight. The dog is put on a diet, losing 0.4kg
every week. How long does it take to reach the target weight of 28 kilograms?
Answer:
17.6 weeks
Step-by-step explanation:
The computation of the time taken to reach the target weight is shown below:
35, 34.6, 34.2...............28
As we know that
a_n = a + (n - 1)d
28 = 35 + (n - 1)(-0.4)
28 = 35 -0.4n + 0.4
28 = 35.04 - 0.4n
0.4n = 35.04 - 28
0.4n = 7.04
n = 17.6
Emily is entering a bicycle race for charity. Her mother pledges $0.60 for every 0.5 mile she bikes. If Emily bikes 10 miles, how much will her mother donate?
What is the verb in the following sentence? “It is too cold for ice cream.”
too
is
cold
It
Answer:
Is is the verb.
Hope u understand.... :P
Hope it helps...
Step-by-step explanation:
is because it is actually happening
cold is an ADVERB to describe something
(b-3)squared expanded
Answer:
Step-by-step explanation:
(x - y)² = x² - 2xy + y²
x = b ; y = 3
(b - 3)² = b² - 2 *b * 3 + 3²
= b² - 6b + 9
a
II. Express the given fraction to decimal.
3
11.
=
12.
NLD
1
3
13.
=
14.
+ I co
4
10
3
1
15.
16.
100 ml
4
17.
=
18.
10
5
15
3
19.
20.
60
16
Answer:
the question is invalid. please rewrite the question.
