Some help please? I’m lost

Some Help Please? Im Lost

Answers

Answer 1

Answer:

1/2

Step-by-step explanation:

When you find the sine of an angle, it is the opposite side / hypotenuse. This means that the hypotenuse of this triangle is 2 and the side opposite to 60° is √3. This means that the side adjacent to 60° is 1 (Pythagorean Theorem). When you find the cosine of an angle, it is the adjacent side / hypotenuse, which in this case will be 1 / 2. Hope this helps!

Answer 2

Answer:

1/2.

Step-by-step explanation:

Sine = opposite side / hypotenuse.

The side opposite 60 degrees has length√3 and the hypotenuse = 2.

By Pythagoras the side adjacent to the angle 60 = √( 2^2 - 3)

= 1 unit.

So cos 60 = adjacent / hypotenuse = 1/2.


Related Questions

Only do question 4

50 points

Topic: Percentage

Answers

Answer:

a 1

b 6

c 15

Step-by-step explanation:

101% 101/100 = 1 1/100

is 1  complete 100 grid and 1/100 of another grid so you will need 2 grids

589% 589/100 = 5 89/100

is 5 complete 100 grids and 89/100 of another grid so you will need 6 grids

1450% 1450/100 = 14 50/100

is 14 complete grids and 50/100 of another grid so you will need 15 grids

A rectangular building has a perimeter of 208 meters. It’s area is 2415 square meters. What are the dimensions of the building?

Answers

Answer:

Step-by-step explanation:

Perimeter of rectangle = 208 m

2*(l + w) = 208  {divide both sides by 2}

l +w = 208/2

l +w = 104

l = 104 - w

Area of rectangle = 2415 square meters

l*w = 2415

Substitute l = 104 - w in the above equation,

(104 - w ) *w = 2415

104w - w² = 2415

0 = 2415 - 104w + w²

w² - 104w + 2415 = 0

Sum = -104

Product  = 2415

Factors = (-69) , (-35)

w² - 35w - 69w + (-69)*(-35) = 0

w(w - 35) - 69(w - 35) = 0

(w -35)(w -69)

w - 35 = 0    ; w  -69 = 0

w = 35    ; w = 69

The dimensions of the building: 35 , 69

What is 1/7 * -1/2 please help

Answers

Answer: If you are asking what (1/7) x -(1/2)

Than the answer is -0.07

Step-by-step explanation:

Answer:

-0.07142857142

Step-by-step explanation:

Please help me solve this. Also please provide working out.

Answers

Answer:

A=238.87 cm

Step-by-step explanation:

First find the area for the rectangle

11*23= 253 cm

then find the area for the little circles

D=3cm so r=1.5cm

Now plug in values into formula

A=π(1.5)^2

A=π(2.25)

A=3.14(2.25)=7.065cm

A=7.065cm since there are two circles

7.065*2=14.13

Now subtract the area of the circles from the rectangle

253-14.13=238.87

A coordinate grid with 2 lines. The first line is labeled y equals 0.5 x plus 3.5 and passes through (negative 3, 1), (negative 2.7, 2.1), and (0, 3.5). The second line is labeled y equals negative StartFraction 2 over 3 EndFraction x plus StartFraction 1 over 3 EndFraction and passes through the points (negative 4, 3), (negative 2.7, 2.1), and (StartFraction 1 over 3 EndFraction, 0). Which is the approximate solution to the system y = 0.5x + 3.5 and y = −A system of equations. y equals 0.5 x plus 3.5. y equals negative StartFraction 2 over 3 EndFraction x plus StartFraction 1 over 3 EndFraction.x + shown on the graph? (–2.7, 2.1) (–2.1, 2.7) (2.1, 2.7) (2.7, 2.1)

Answers

Answer:

2.1 2.7

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

edge test ;)

HELP HELP HELP HELP
show the steps too. I'll give BRAINLIEST!​

Answers

Move constant to the right-hand side and change its sign

2x^2 + 8 = -2 + 7
-2 + 7 = 5

Divide both sides of the equation by

x^2 + 4x = 5/2

Add (4/2^2) to both sides of the equation

x^2 + 4x + (4/2)^2 = 5/2 + (4/2)^2

factor the expression

(x + 4/2)^2 = 13/2

reduce the fraction by 2

(x + 2)^2 = 13/2

now solve equation for x




6x-2y-3x+2y simplify

Answers

Answer:

3x

Step-by-step explanation:

6x-2y-3x+2y

Combine like terms

6x -3x     -2y +2y

3x                 +0

3x

Answer:

3x

Step-by-step explanation:

6x-2y-3x+2y

combine like term

6x-3x= 3x

-2y+2y=0

3x


What equation matches the table of values

Answers

The answer is y =3x
Explaining
y= 3*-3
y=-9

Find the point that lies on the line described by the equation below. y - 8 = - 3 (x-6)​

Answers

Answer:

B. (6, 8)

Step-by-step explanation:

To figure this out, you can plug in the coordinates to see if you get matching answers. Since you believe answer "B," is correct, we can check:

y - 8 = -3(x - 6)

8 - 8 = -3(6 - 6)

0 = -3(0)

0 = 0

Since the answers match, that makes answer "B," correct.

3(4)+3(2+7)= ×(4+9) what number is missing to make this equation true​

Answers

Step-by-step explanation:

3 is missinh to make this question true

3×(4+9)

8=9-5x find the value of x​

Answers

Answer:

[tex]x = \frac{1}{5} [/tex]

Step-by-step explanation:

8-9=-5x

-1=-5x (divide both sides by -5)

x=-1/5 (since they r both negative they both become positive)

x=1/5

kevin deposits $1000 at 9% annual interest, compounded quarterly. how long will it take for the account to earn $1000 interest ?

Answers

Answer:

2 years and 13 days

Step-by-step explanation:

Kevin deposits $1000 at 9% annual interest, compounded quarterly. How long will it take the account to earn $1000 in interest? Round to the nearest year. 11+0)46 = 21 7.79 -t 2 years 13 MOVI2.

Factor the polynomial: 2x2(x - 5) - 3(x - 5)
O A. (x - 5)(2x2 - 3)
B. (x - 5)(2x - 3)
O c. 2x2(x - 5)
O D. (x - 5)(2x + 3)

Answers

Answer:

A

Step-by-step explanation:

[tex]2x^2(x-5)-3(x-5)=\\2x^3-10x^2-3x+15=\\(x-5)(2x^2-3)[/tex]

Therefore, the correct answer is choice A. Hope this helps!

The factor of the polynomial is (x - 5)(2x² - 3).

Option A is the correct answer.

What is a polynomial?

Polynomial is an equation written with terms of the form kx^n.

where k and n are positive integers.

There are quadratic polynomials and cubic polynomials.

Example:

2x³ + 4x² + 4x + 9 is a cubic polynomial.

4x² + 7x + 8 is a quadratic polynomial.

We have,

We can factor the polynomial 2x² (x - 5) - 3(x - 5) by first factoring out the common factor of (x - 5).

This gives:

2x² (x - 5) - 3(x - 5)

= (x - 5)(2x^2 - 3)

Thus,

The factor of the polynomial is (x - 5)(2x² - 3).

Learn more about polynomials here:

https://brainly.com/question/2284746

#SPJ7

Which expression is equivalent to 6x2 – 19x – 55?
(2x – 11)(3x + 5)
(2x + 11)(3x - 5)
(6x – 11)(x + 5)
(6x + 11)(x - 5)

Answers

So the right answer is of option D.

Look at the attached picture

Hope it will help you

Good luck on your assignment

Answer:

(6x + 11)(x – 5)

Step-by-step explanation:

It's D on edg

The cost of a ticket increases by 10% and the cost is £19.25. What was the cost before? The answer is £17.50 but how do you work out this? Can you please tell me the method?

Answers

Answer:

$19.25 - 10% = $17.50

Step-by-step explanation: Not sure which method your referring to, but its a simple equation that can be written out as the above.

The spinner to the right is spun 20 times. It lands on red 6 times, yellow 2 times, green 8 times, and blue 4 times.

Based on the data, what is the experimental probability of landing on yellow?

You may give your answer as a simplified fraction, decimal, or percent.

Answers

Answer:

0.1

Step-by-step explanation:

Given: The spinner lands on red 6 times, yellow 2 times, green 8 times, and blue 4 times. when it is spun 20 times.

To find: experimental probability of landing on yellow

Solution:

Probability refers to chances of occurring of some event.

Probability = number of favourable outcomes total number of outcomes

As the spinner lands on yellow 2 times,

number of favourable outcomes = 2

Total number of outcomes = 20

Probability = 2/20 = 1/10 =0.1

HELP PLZ no guessing

Answers

Answer:

5 1/4

Step-by-step explanation:

Divide 15 3/4 by 3 to get the answer

7/8 - 3/64 give your awnser in its simplest form

Answers

Answer: to

this answer is attached to the picture

Answer:

[tex] \frac{53}{64} [/tex]

Step-by-step explanation:

[tex] \frac{7}{8} - \frac{3}{64} \\ \frac{7 \times 8}{8 \times 8} - \frac{3}{64} \\ \frac{56}{64} - \frac{3}{64} \\ = \frac{53}{64} [/tex]


Check that x=2 and y=5 is a solution of both equations below:
X+2y=12
3x+6y=36 *

Answers

Answer:

yes

Step-by-step explanation:

Substitute x = 2 and y = 5 into the left side of the equations and if equal to the right side then they are a solution.

x + 2y = 2 + 2(5) = 2 + 10 = 12 ← True

3x + 6y = 3(2) + 6(5) = 6 + 30 = 36 ← True

Thus x = 2, y = 5 is a solution to both equations

Answer:

i dont understand your question

Step-by-step explanation:

Take away 5 from 6 times k

Answers

Answer:

6k-5

Step-by-step explanation:

Answer:

k

Step-by-step explanation:

6-5=1

1*k=k

Kareem is participating in a 5-day cross-country biking challenge. He biked for 67, 62, 59, and 47 miles on the first four days. How many miles does he need to bike on the last day so that his average (mean) is 60 miles per day? miles

Answers

Answer:65miles

Step-by-step explanation:

Let the needed miles be x

(67+62+59+47+x)/5=60

235+x=60×5

235+x=300

x=300-235

x=65miles

This strip is 12 cm long Find the length of 25% of the strip

Answers

Answer:

If the strip is 12cm and it is asking for 25% of it, you can divide 12 by 4, as 25 is 1/4 of 100.

The answer will be 3cm

Answer:

3

Step-by-step explanation:

Twenty five percent of the 12 cm strip means 25÷ 100 = 0.25 .

so 0.25 x 12 = 3.

The center of a circle is located at the point (4, 6). A point on the circle is (1, 10). Which
is the equation of the circle?

Answers

Answer:

(x-4)^2+(x-6)^2=25

Step-by-step explanation:

Please help I have no idea how to do this and its due in a couple hours

Answers

Answer:for the first one, you should probably do a table of values then answer the question, i usually find that helpful

Step-by-step explanation:

Ariel is filling a giant beach ball with air. The radius of the beach ball is 30cm. What is the volume of air that the beach ball will hold? Either enter an exact answer in terms of π πpi or use 3.14Pi.

Answers

Answer:

V =36000 pi cm^3

Step-by-step explanation:

The volume of a sphere is

V = 4/3 pi r^3

We know the radius is 30

V = 4/3 pi (30)^3

V = 4/3 pi (27000)

V =36000 pi cm^3

Using the graph
Order the lines from the steepest slope to the least steel slope

Answers

Answer:

The steepest slope is that of the line that is closest to being vertical.

Step-by-step explanation:

Hope this helps!!!!

Answer:

B, A, C, D

Step-by-step explanation:

rise over run

slope: the ratio of the change in the dependent values (outputs) to the change in the independent values (inputs) between two points on a line

Consider the function represented by the table. What is f(0)?

Answers

Answer:

The table isn't shown, but f(0) will be found when you put zero in for x.

hey can someone help me out on this? tysm

Answers

Step-by-step proof:

by AAA similarity, triangle WZP is similar to triangle XYP.

so WZ/WY=PZ/PY=1=WP/PX, so we get WP=PX

Answer:

n/a

Step-by-step explanation:

theyre similar by aaa similarity

please help ..its soo much to comprehend

Answers

Answer:

3600

Step-by-step explanation:so it is easiest to do one persons costs then just multiply it by 4 to get the cost of 4 people. so first for one person..... (their travel is) 130 + (hotel x 7 days) 60 x 7 + (spending money) 350 =900 . now multiply this by 4 = 3600

Let's start off by working out the cost for one person. This person has to spend 130 pounds on travel and have 350 pounds of spending money. So far that is 130+350 = 480 pounds. Then it says the hotel costs 60 pounds per day. At 7 days, it will cost one person 7*60 = 420 pounds. This adds onto the 480 to get 420+480 = 900.

Therefore, each person will need 900 pounds to go on a 7 day trip. If we had 4 people going, then 4*900 = 3600 pounds is needed total.

Answer: £3600

The volume of a ball is 288pi cm cubed. Find the dimensions of a rectangular box that is just large enough to hold the ball.

Answers

Answer:

r = 6 cm

Step-by-step explanation:

The volume of a sphere is 288 pi cm tripled . Find the lenght of a radius of a SPHERE.What is the answer and how did you do it?

-------------------

The volume of a sphere of radius r is:

V+=+4%2Api%2Ar%5E3%2F3

It's r cubed, not tripled. meaning r*r*r

-------------------

288pi+=+4%2Api%2Ar%5E3%2F3

864+=+4r%5E3

r%5E3+=+216

r = 6 cm

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