l find it difficult to solve this problem. Please help.​

Answer:

X+3(3x-7)=5.2+2.9

x+9x-21=8.1

10x=8.1+21

10x=29.1

x=2.91

Answer:

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Answer:

D. Real numbers from 0 to 12

Step-by-step explanation:

The domain is the possible x-values and because the depth can not go below 0, the amount of time stops at 12.

Time also can not go below 0 so we are left with real numbers from 0 to 12

Answer:

mean=12

Step-by-step explanation:

soln:

given,

17,1,16,16,7,19,3,17

X=17+1+16+16+7+19+3+17

=96

N=8

Now,

[tex] \: mean = \frac{summation \: x}{n} [/tex]

[tex] = \frac{96}{8} [/tex]

=12

therefore, Mean=12

hope you understand it

Step-by-step explanation:

-9(1-10n)-2(3n+9)

-9+90n-6n-18

-9-18+90n-6n

-27+84n

3(-9+28n)

Answer:

Given coordinetes of triangle A(−2,3),B(8,3) and C(6,7)

AB=  

[8−(−2)]  

2

+(3−3)  

2

​

=  

(10)  

2

+(0)  

2

​

=  

100

​

AC=  

[6−(−2)]  

2

+(7−3)  

2

​

=  

(8)  

2

+(4)  

2

​

=  

64+16

​

=  

80

​

BC=  

(6−8)+[7−(2)]

​

2

=  

(−2)  

2

+(4)  

2

​

=  

4+16

​

=  

20

​

If ABC is a right angled triangle, then square of one side must be equal to sum of suare of other two sides.

AB  

2

=(  

100

​

)  

2

=100

and AC  

2

+BC  

2

=(  

80

​

)  

2

+(  

20

​

)  

2

=100

∴AB  

2

=AC  

2

+BC  

2

thus triangle satisfies the Pythagoras theorem

Hence, the triangle is right angled triangle.

Step-by-step explanation:

Answer:

Im pretty sure it is

Step-by-step explanation:

As you can see there is a pattern, +10, +15, then you see 260, you'd need 5 more numbers before getting to 260, in other words, +30, and not +15 or +10. So yes.

Answer:

8 and 32

Step-by-step explanation:

(19)

x³ ÷ 3 - y ( substitute x = 3, y = 1 into the expression )

= 3³ ÷ 3 - 1

= 27 ÷ 3 - 1

= 9 - 1

= 8

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

(21)

12k - h² ( substitute h = 2, k = 3 into the expression )

= 12(3) - 2²

= 36 - 4

= 32

Answer:

the answer to that is 150

Answer:

6(10+4)

Step-by-step explanation:

The real question gives 78

Expand all the brackets in the option

and compare if it gives the answer real expression i.e 78

If you work for an employer, you and your employer each pay a 6.2 percent Social Security tax on up to $142,800 of your earnings and a 1.45 percent Medicare tax on all earnings.

Answer:

6.25%*459=28.6875

7.65%*459=35.1135

459-28.6875=430.3125

430.3125-35.1135=395.199

Answer:

If Adrian buys 2 more CDs, he will pay $56.

Adrian will pay $64 for eight CDs.

Step-by-step explanation:

So, we already know that 5 CDs costs $40. That means that we can use this information to figure out how much 1 CD costs.

40 ÷ 5 = $8 per CD

Now that we know that each CD costs $8, we know that if Adrian buys 2 more CDs, then he will pay $16 ($8 x 2) more than his current price.

$40 + $16 = $56.

If Adrian buys 2 more CDs, he will pay $56.

Now, in order to find out how much 8 CDs costs, we just need to divide $8 by 8.

$8 x 8 = $64

Therefore, Adrian will pay $64 for eight CDs.

I hope this helps! :)

Answer:

1 hour and 29 minutes

Step-by-step explanation:

4:50 pm to 6:00 pm is 1 hour and 10 minutes.

6:00 pm to 6:19 pm is 19 minutes.

1 hour and 10 minutes + 19 minutes = 1 hour and 29 minutes.

Explanation:

Let's find out how long Kajal spoke on the phone.

4:50 + 10 mins = 5:00

5:00 + 60 mins = 6:00

6:00 + 19 mins = 6:19

To find the total time between 4:50 + 6:19, we add the distances.

10 mins + 60 mins + 19 mins = 89 mins

Thus, Kajal spoke on the phone for 89 minutes.

Do you want to see the distance? If yes, look down for my picture↓, but don't forget to mark it as a brainlist!

Answer:

Small shirts = 12 shirts

Large shirts = 18 shirts

Step-by-step explanation:

Given information

There are plans for ordering 24 medium shirts.

For every 4 medium shirts, there would always be 2 small shirts and 3 large shirts.

STEP ONE: Find how many groups of [4 medium shirts] are ordered.

24 / 4 = 6

There should be 6 groups of 4-medium-shirts orders.

STEP TWO: Find the number of small shirts.

6 × 2 = 12 shirts

STEP THREE: Find the number of large shirts.

6 × 3 = 18 shirts

Hope this helps!! :)

Please let me know if you have any questions or need further explanations

9514 1404 393

Answer:

  $14.025

Step-by-step explanation:

"Time and a half" means the hourly rate is multiplied by 1 1/2.

  1.5 × $9.35/hour = $14.025/hour

Alice's overtime rate is $14.025 per hour.

Answer:

n=B-q/q

Step-by-step explanation:

Answer:

it depends

Step-by-step explanation:

Answer:

b.

Step-by-step explanation:

30×0.5×63 = 945

this is not a square number. therefore, the sqrt(945) is a number of infinite digit positions after the decimal point without repeating pattern.

so, it is a prime example of an irrational number.

[tex]\sqrt[5]{2}-1 = 1 +x - 1[/tex]Answer:

14.87% per hour

Step-by-step explanation:

Let's pretend we're starting with one bacteria.

Double of one is two

We're gonna have to use this formula: A = P(1 + x)ⁿ

A = Amount (which is 2)

P = Initial amount (which is 1)

x = percentage per time (hour)

n = amount of time (hours)

So our equation will look like this:

2 = 1(1 + x)⁵

First, we need to root both sides to isolate (1 + x)

[tex]\sqrt[5]{2} = \sqrt[5]{(1+x)}[/tex]

[tex]\sqrt[5]{2} = 1 +x[/tex]

Then subtract both sides by 1

[tex]\sqrt[5]{2}-1 = 1 +x - 1[/tex]

[tex]x=\sqrt[5]{2}-1[/tex]

[tex]\sqrt[5]{2} = 1.148698355[/tex]

1.148698355 - 1 = 0.148698355

x = 0.148698355

2x+4y=12

[tex]\\ \rm\Rrightarrow 3x+y=8[/tex]

[tex]\\ \rm\Rrightarrow 3x+6y=18[/tex]

Subtract both

[tex]\\ \rm\Rrightarrow -5y=-10[/tex]

[tex]\\ \rm\Rrightarrow y=\dfrac{-10}{-5}[/tex]

[tex]\\ \rm\Rrightarrow y=2[/tex]

Put the value in eq(2)

[tex]\\ \rm\Rrightarrow x+2(2)=6[/tex]

[tex]\\ \rm\Rrightarrow x+4=6[/tex]

[tex]\\ \rm\Rrightarrow x=6-4=2[/tex]

Answer:

x=2, y=2

Step-by-step explanation:

-2(3x+y=8)

3(2x+4y=12)

-6x+-2y=-16

6x+12y=36

0+10y=20

       y=2

3x+2=8

3x=6

x=2

Answer:

Commutative property

Step-by-step explanation:

addition is commutative for example 2+3=3+2

multiplication is also commutative 3*2=2×3

The miles previously covered by algae is 6 miles

let m represent the miles of the coastline covered by algae before the clean-up  

fraction of miles covered after the clean-up = [tex]\frac{1}{3}[/tex] x m = [tex]\frac{1}{3}m[/tex]

miles covered after the clean-up = 2 miles

[tex]\frac{1}{3}m[/tex] = 2 miles

to determine the value of m, make m the subject of the formula.

To do this, take the following step :

multiply both sides of the equation by 2

m = 2 miles x 3

m = 6 miles

For more information, please check : https://brainly.com/question/2294445?referrer=searchResults

Answer:

I DONT KNOW SORRY BRO

Step-by-step explanation:

Answer:

Step-by-step explanation:

2 1/4 per egg

if there is 12 eggs in a dozen then you would just do:

2 1/4 x 12

( 27 i think)

Answer:

Step-by-step explanation:

9.59277626267 is irrational.

Because it has many ifinite decimals

Answer:

x = 2

Step-by-step explanation:

h(x) = -3x + 2

In this question, h(x) has the same meaning as y, so though this is not a standard practice, rewrite the question as

y = -3x + 2

What the question is telling you is that y = - 4

-4 = -3x + 2                  Subtract 2 from both sides

-4-2 = -3x                    Combine

-6 = - 3x                       Divide by - 3

-6/-3 = x

x = 2