Ive been struggling with this problem can someone help. Thank you

Answer:

√(3)/3

Step-by-step explanation:

cos(A) = adj./hyp.

adj. = √(3) or √(3)/2

hyp. = 2 or 1

use unit circle:

hyp. = 1

adj. = √(3)/2

use pythagorean theorem c² - b² = a²

1² - (√(3)/2)² = 1 - 0.75 = 0.25

a² = 0.25

a = √(0.25)

a = 0.5

tan(A) = opp./adj.

tan(A) = 0.5/(√(3)/2)

tan(A) = 1/√(3)

rationalize

tan(A) = √(3)/3

if the 20% of a number is 386, what will be 30% of the same number

Answer will be 157

If 20% of a number is 386,  30% of the same number is 579

Let the number be x.

So,we have:

20% * x = 386

Express 20% as 0.20

0.20 * x = 386

Divide both sides by 0.20

x = 1930

30% of the number is represented as:

30% * 1930

Evaluate the product

30% * 1930 = 579

Hence, 30% of the same number is 579

Read more about percentage at:

https://brainly.com/question/11360390

Answer:

Lever turns about a fixed point called a fulcrum.

Step-by-step explanation:

hope it helps..

Answer:

lever

Step-by-step explanation:

Answer:

15 in.

Step-by-step explanation

AREA OF A TRIANGLE= B X H / 2

6 X 5=30

30/2=15

Answer:

this answer for this question

y=833

Answer:

y = x^2 + 4x - 7

y=833

Step-by-step explanation:

brainliest?

Answer:

The answer is 2 thousand 900 and eight and 33cent = 2,908.33

Answer:

The answer is 2 thousand 900 and eight and 33cent = 2,908.33

Step-by-step explanation:

Answer:

6.25%

Step-by-step explanation:

Each time you flip a coin, there is a 50% probability of it landing on tails. Each time you flip the coin, the 50% gets multiplied by [tex]\frac{1}{2}[/tex].

[tex]\frac{1}{2}[/tex] to the power of 4 is 0.0625. 0.0625 in percentage form is of course 6.25%

Answer:

4 liters

Step-by-step explanation:

Answer: 40 phones

Step-by-step explanation:

The company expects that every 2 out of 25 phones will have some form of defect.

In percentage terms, this is:

= 2 / 25 * 100%

= 8%

If there are 500 phones therefore, the defected phones would still be the same percentage and the actual number would be:

= 8 % * 500

= 40 phones

Step-by-step explanation:

✓(-1/6×4/7)+(-1/6×-2/5)

✓(-4/42)+(2/30)

✓(-2/21)+(1/15)

✓(-2/21+1/15)

=-1/35

Answer:

$18

Step-by-step explanation:

spent = 1/6 + 1/3 = 1/2

1/2 x 36 = $18

Answer :_

18$

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Answer:

He pulled out his hare

Step-by-step explanation:

answer the questions correctly and put them in order

Answer:

x² - 4x + 12

Step-by-step explanation:

x=2+2.82843i

x=2−2.82843i

Answer:

option one is correct

Step-by-step explanation:

3 times =15

5times 5 =25

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Answer:

A≈$2819

Step-by-step explanation:

In this case P=$2500, r=3%, t=4

Answer:

A

Step-by-step explanation:

Answer:

430 cm squared

Step-by-step explanation:

SA= 2(Length x Base, Base x Height, Height x Length)

15cm x 5cm +

15cm x 7xm +

7cm x 15cm =

215cm

215cm x 2 = 430 cm squared.

(it's perimeter of a 3D object so it must be squared, then volume would be cubed)

I hope this helps <3

Answer: -24

Step-by-step explanation:

[tex]\frac{x}{6} -18 = -22[/tex]

[tex]\frac{x}{6} = -22 + 18[/tex]

[tex]\frac{x}{6} = -4[/tex]

[tex]x= -4*6[/tex]

[tex]x= -24[/tex]

check work

[tex]\frac{(-24)}{6} -18 = -22[/tex]

[tex]-4 -18 = -22[/tex]

[tex]-22 = -22[/tex]

Answer:

Hope it helps....

Step-by-step explanation:

Answer:

52√3 ft²

Step-by-step explanation:

sin 60° = (√3) / 2 = h/8

h = 8 x (√3) / 2 = 4√3

cos 60° = 1/2 = a/8

a = 4         b = 15-4 = 11

area = left triangle + right rectangle

area = (4*4√3) / 2 + 11*4√3

        = 8√3 + 44√3

        = 52√3

Answer:

x <40

Step-by-step explanation:

The income from the pens is 2*x

He made less than 80

2x <80

Divide each side by 2

2x/2 < 80/2

x < 40

Answer:

In group A, they have at least one 90 degree angle. In Group B, they do not have any 90 degree angles.

Answer:

18 children weighed less than 50 pounds.

Step-by-step explanation:

Ok, adding into the explanation what the heck this kind of a table is. The "stem" column is the tens place of each of the children's weights. The "leaf" is the ones digit of each of the children's weights. So in the row where the stem is 2, there were 2 kids weighing 23 and 25 pounds.

For your question, we have to add up how many students have a weight with a "stem" less than 5, because that's where 50 pounds starts.

8 + 2 + 5 + 3 = 18 children weighed less than 50 pounds.

Answer:

Rs.12500

Step-by-step explanation:

18% = saved

100 - 18 = 82%(used salary)

82% = 10250

100% = ?

100 × 10250 = 1025000

1025000 ÷ 82 = Rs.12500

Answer:

its the third answer

Step-by-step explanation:

The third anwser is 66% which we can noow nominate any lower.

The second answer is 60% we can get rid of that.

the first is 55% we can get rid of that.

and the fourth is 62.5% so we can get rid of that.

Answer:

the third one or c

Step-by-step explanation:

Answer:

Y = x^2 - 2x - 15

Step-by-step explanation: