please help 15 points

Answer:

6 cms.

Step-by-step explanation:

If the side of an equilateral triangle is 2x cm then its height is  √3x and its base is 2x.

Area = 1/2 * base * height

9√3 = 1/2 * 2x * √3x    

9√3 = x * √3x

9 = x^2

x = 3

So length of each side = 2*3 = 6.

x = 9

Answer:

zero

Step-by-step explanation:

Answer:

I got this same question on my quiz, so I added the other two questions as well, with their answers.

Step-by-step explanation:

1. What is the standard deviation of the data set? Round to the nearest tenth if needed.

2, 4, 7, 8, 9

Answer: 2.9

2. Data Set A has a mean of 215 and a standard deviation of 35. Data Set B has a mean of 400 and a standard deviation of 12. Which data set is more spread out?

Answer: Data Set A

3. What is the standard deviation of a data set whose values are all the same?

Answer: 0

    To solve this problem form the system of equations as per statements given in the question then get the answer by solving them.

    Number of bushes in garden one were 55 and in second garden 11 originally.

   Let the number of raspberry bushes in one garden = x

And the number of raspberry bushes in second garden = y

So the equation for the given statement will be,

x = 5y -------(1)

Therefore, equation for this statement will be,

(x - 22) = (y + 22)

x - y = 22 + 22

x - y = 44 ------(2)

Substitute the value of x from equation (1) to equation (2)

5y - y = 44

4y = 44

y = 11

Substitute the value of 'y' in equation (1),

x = 5(11)

x = 55

                   Therefore, Number of bushes in garden one were 55 and in second garden 11 originally.

Learn more,

https://brainly.com/question/12422372

Answer:

A, (4,-3), (1, -1), (7,-6)

Step-by-step explanation:

f(x, y) = (y, -x) there is a 90° clockwise or 270° counterclockwise rotation

answer:

A is your answer...

explanation:

I just divided each number by 4 to get the results..

hope it helps and plz mark brainliest

Answer:

First, set x equal to .93

x=.939393939393...

Then, since the repeating is by two digits, let's multiply x by 100

This would make 100x=93.9393939393...

Now, we can subtract 100x−x

This would leave us with 99x=93 because the repeating digits cancel out.

This looks much easier now right?

Just divide the 99 and isolate the x to get x=9399

Get the simplified fraction, and the final answer is x=3133

Answer:

Let first no. be x

Therefore,

2nd no. is x+1

Third no. is x+2

SUM OF NO.'s=x+x+1+x+2

S=3x+3

S=3(x+1)

Step-by-step explanation:

Let the first number be 2k-1, where k is an postive integer.

Then the sum S is given by

[tex]S=(2k-1)+(2k+1)+(2k+3)=6k+3[/tex]

(7z + 5) + (2z - 1) + (6z + 3) + (3z - 9) =

= 7z + 5 + 2z - 1 + 6z + 3 + 3z - 9 =

= 7z + 2z + 6z + 3z + 5 - 1 + 3 - 9 = 18z - 2

Answer:

x = 12

Step-by-step explanation:

1 + 11 = 12, so x = 12. hope this helps

Answer:

2

Step-by-step explanation:

you multiply the 6 and 5 to the parethinsis and simplify

Answer:

A

Step-by-step explanation:

( ) The null set is always empty.

Answer:

a

Step-by-step explanation:

The null set will always be empty

0 . 12 + 14 . 6 answer is 14 . 72

Answer:

0.12

+ 14.60

14.72

Step-by-step explanation:

at first place 0.12

and add 14.60

your answer is 14.72

while adding make sure the decimal u place must be in same sequence

Answer:

d).

g(x) = x² +3

g(2t) = (2t)² +3 = 4t²+3

e).

g(x) = x² +3

g(t+1)= (t+1)²+ 3 = t² +2t+1 +3 = t²+2t +4

I hope I helped you^_^

Answer:

$4.95

Step-by-step explanation:

Paul originally has $3.69.

His sister gives him $5.25.

$3.69 + $5.25 = $8.94

The CD single cost him $3.99

$8.94 - $3.99 = $4.95

Therefore, he has four dollars and 95 cents ($4.95) left.

Answer:

$4.95

Step-by-step explanation:

3.69+5.25= 8.94

8.94-3.99=4.95

Answer:

y = a - k

Step-by-step explanation:

k = a - y

=> k + y = a

=> y = a - k

Answer:

seven time (multiplied by) x

Step-by-step explanation:

Answer:

Step-by-step explanation:

(x₁ , y₁) = (6, -4)  &    (x₂ , y₂) =(-1 , -4)

In these two points, there is no change in y-coordinates. So, the line is parallel to x-axis.

Slope of line parallel to x-axis = 0

Answer:

1/10

Step-by-step explanation:

8 black marbles, 5 white marbles and 12 red marbles = 25 marbles

P(red) = red/total = 12/25

Remove the marble

8 black marbles, 5 white marbles and 11 red marbles = 24 marbles

P(white) = white/total = 5/24

P(red, remove,white) = 12/25 * 5/24

                                   =12/24 * 5/25

                                   =1/2 * 1/5

                                   =1/10

Step-by-step explanation:

Total balls = 12 + 5 + 8 = 25 marbles

Probability of getting white marbles = 5/24

Probability of red marbles = 12/24 = 1/2

Now

Probability = 1/2 × 5/24 + 1

Probability = 1/2 × 5/25

Probability = 5/50

Probability = ⅒

Answer:

x = 1/3

Step-by-step explanation:

1 = 1/x -2

add 2 to both sides

3 = 1/x

x = 1/3

Answer:

Answer: 3^-2

Step-by-step explanation:

[tex]( \frac{1}{3} ) {}^{2} \\ \\ = \frac{ {1}^{2} }{ {3}^{2} } \\ \\ = {3}^{ - 2} [/tex]

Answer:

[tex]\frac{1}{9}[/tex]

Step-by-step explanation:

Evaluate the power

[tex]\frac{1^2}{3^2}[/tex]

Divide

[tex]\frac{1}{9}[/tex]

Answer:

um, the question?

Step-by-step explanation:

if it's for free then tysm!

Answer:

thank you :)

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

Because 8's place value is the ones , 3's place value is the tenths and 4's place value is the hundredths.

Example > 0.1 = tenths slot. 0.01 = hundredths slot. 0.001 = thousandths slot. 0.0001 = ten thousandths slot.

Your welcome pooh.

Answer:

1. How to Solve using Algebra

Make both equations into "y =" format.

Set them equal to each other.

Simplify into "= 0" format (like a standard Quadratic Equation)

Solve the Quadratic Equation!

Use the linear equation to calculate matching "y" values, so we get (x,y) points as answers.

Algebraic method is more easy to do

2. linear functions have constant first differences. quadratic functions have constant second differences. exponential functions have a constant ratio.

Step-by-step explanation:

[tex]8mn[/tex]

or equivalently

[tex]8\cdot m\cdot n[/tex]

We often write variable side-byside without the multiplication sign in algebra. It also applies to terms with indices. For instance,

[tex]\text{We write }a^2b^3c^4\text{ and mean }a^2\times b^3\times c^4[/tex]

We may, often also add a dot at the middle of both terms as another version of multiplication sign for better readability if the terms are more complicated, for instance

[tex]a\cdot b\cdot c[/tex]

and

[tex]\frac ab\cdot \sqrt{\frac{d^4}{b^9}}\cdot\pi[/tex]

Answer:

x= (1,8)

Step-by-step explanation:

Answer:

Step-by-step explanation:

-3≤ 6x - 9                 Add 9 to both sides

-3 + 9 ≤ 6x               Combine left

6 ≤ 6x                       Divide by 6

6/6 ≤ 6x/6

1 ≤ x

6x - 9 < 39               Add 9 to both sides

6x < 39 + 9              Combine

6x < 48                     Divide by 6

6x/6 < 48/6

x < 8

So the inequality is

1 ≤ x < 8

I think that is what you want. You have to express it as a combined inequality.

Answer:

Step-by-step explanation:

9) a = 2 ; b = 6

a) a + b =  2 + 6 = 8

b) b - a = 6 - 2 = 4

c) ab = 2 * 6 = 12

10) c = 12 ; d = 4

a) c ÷ d = 12 ÷ 4 = 3

b) c + d = 12 + 4 = 16

c) c - d = 12 - 4   = 8

Answer:

[tex]8x - 5y = 30 + 2x \\ 8x - 2x = 30 + 5y \\ 6x = 30 + 5y \\ \\ x = \frac{30 + 5y}{6} \\ \\ x = \frac{30}{6} + \frac{5y}{6} \\ \\ x = 5 + \frac{5y}{6} [/tex]

I hope I helped you^_^