simplify fully, does anyone know ?

Answer:

x = 7, -11

Step-by-step explanation:

(x + 2)^2 = 81

(7 + 2)^2 = 81      Take one value of x

9^2 = 81              Solve for the exponent

81 = 81                Final Answer

(x + 2)^2 = 81

(-11 + 2)^2 = 81   Take one value of x

9^2 = 81             Solve for the exponent

81 = 81

Understandings:

Understand how to solve for exponents

For example the ones that we used in this situation, in order to solve for an exponent, multiply the number by itself twice = 9 x 9 = 9^2 = 81

Answer:

x = 7 , x = - 11

Step-by-step explanation:

[tex](x+ 2)^2 = 81\\\\(x+2) = \sqrt{81}\\\\(x+2) = \pm 9\\\\x + 2 = 9 \ , \ x + 2 = - 9\\\\x = 9 - 2 \ , \ x = - 9 - 2\\\\x = 7 \ , \ x = -11[/tex]

9514 1404 393

Answer:

  5 cubic feet

Step-by-step explanation:

The volume is the product of the dimensions.

  V = LWH

  V = (5/2 ft)(3/2 ft)(4/3 ft) = (5·3·4)/(2·2·3) ft³ = 5 ft³

The volume of the prism is 5 cubic feet.

Answer:

10(6 + 4  + 5)

Step-by-step explanation:

Answer:

[tex]a_2 = 8[/tex]

[tex]a_3 = 18[/tex]

[tex]a_4 = 38[/tex]

Step-by-step explanation:

We are given the following recursive formula:

[tex]a_n = 2(a_{n-1}+1)[/tex]

And consider [tex]a_1 = 3[/tex]

a2

[tex]a_2 = 2(a_1 + 1) = 2(3 + 1) = 8[/tex]

a3

[tex]a_3 = 2(a_2 + 1) = 2(8 + 1) = 18[/tex]

a4

[tex]a_4 = 2(a_3 + 1) = 2(18 + 1) = 38[/tex]

Answer:

0.05n + 0.25q = 1.60

q = 3n

0.05n + 0.25(3n) = 160

0.05n + 0.75n = 1.60...multiply by 100 to get rid of the decimals

5n + 75n = 160...answer D

Step-by-step explanation:

(meow) <3

Answer:

4

Step-by-step explanation:

43/16 times 125 equals 335.9375

Answer:

624 600

Step-by-step explanation:

624 612

you have to concentrate at the 1 because because it's at the tens place, if the 1 is not greater than 5 you don't have to do anything. you just have to remove the two numbers before the the number 6 and you so it automatically should be 624 600.

To round a number to the nearest hundredth , look at the next place value to the right (the tens this time). Same deal: If it's 4 or less, just remove all the digits to the right. If it's 5 or greater, add 1 to the digit in the hundredths place, and then remove all the digits to the right.

Answer:

Hi

Step-by-step explanation:

Please like I am noob I neeed brainliest

Answer:

He traveled 520 miles

Step-by-step explanation:

8 x 65 = 520

Answer: 520 miles

Step-by-step explanation:

Data: Juan drove 8 hours

Drove at an average Speed of 65 mph

Miles driven=x

Only step: Multiply 65 by 8 which is 520

Explanation: Since Juan drove at an average speed of 65 miles per hour, that means he drove 65 mile for every hour he drove. So since he drove for 8 hours, you multiply 8 hours by 65 miles so that you get get the total amount of hours driven by him.

Don't forget to add "Miles" to the end of your answer because most math teachers tend to want that in an answer like this.

I hope this helps(Mark brainiest if you want to, thanks)

Answer:

1st one may be the answer to your question 39% sure

Answer:

70

Step-by-step explanation:

2x and (4x-70) have the same measurements.

Set your formula up as

2x = 4x-70

2x-4x=-70

-2x=-70

x=35

Now substitute 35 in place of x

2x = 2*35 = 70

4x-70 = 4*35 - 70 = 70

Answer:

$99,941 worth of goods sold

Step-by-step explanation:

104,000-4,059=99,941

Answer:

90

Step-by-step explanation:

Answer:

60

Step-by-step explanation:

answer is in photo above

Answer:

4.7

Step-by-step explanation:

3.21 + 3.62 ÷ 2.43

[tex]3\frac{21}{100}+1\frac{119}{243}[/tex]

[tex]4\frac{ 17003}{24300}[/tex]

[tex]4\frac{ 17003}{24300}=4.6997119341564[/tex]

4.6997119341564 rounds to

4.70

Answer is 4.70

Arithmetic operations can also be specified by the subtract, divide, and multiply built-in functions.

3.21 + 3.62 ÷ 2.43

Convert decimal into fraction,

[tex]\dfrac{321}{100} + \dfrac{362}{100}\div\dfrac{242}{100}[/tex]

[tex]\dfrac{321}{100} + \dfrac{362}{242}[/tex]

[tex]\dfrac{(321)(242)+(362)(100)}{(100)(242)}[/tex]

[tex]\dfrac{77682+36200}{24200}[/tex]

[tex]\dfrac{113882}{24200}[/tex]

[tex]4.7[/tex]0

Learn more about Arithmetic operations here:

https://brainly.com/question/25834626

#SPJ2

Answer:

[tex]\frac{9}{10}[/tex]

Step-by-step explanation:

[tex]2(5x+4)=17,\\10x+8=17,\\10x=9,\\x=\frac{9}{10}[/tex]

Analysis:

2(5x+4)=17

10x+8=17,

10x=9

x=9/10 (ans)

Answer:

x = 9/10

Step-by-step explanation:

2(5x + 4) = 17

Distribute

10x+8 =17

Subtract 8 from each side

10x +8-8 = 17-8

10x = 9

Divide by 10

10x/10 = 9/10

x = 9/10

Answer:

$99

Step-by-step explanation:

MP3 Player: $100

10% Mark up: $100/10= 10

Therefore, Mark-Up Price: $100+$10= $110

This was then Marked down by 10%.

Therefore,

10% Marked down: $110/10= $11

(We then take this away from the marked up price)

Hence, Final Price : $110-$11= $99

Answer:

Possible

Step-by-step explanation:

The sum of two sides must be greater than the sum of the third side.

Answer:

Impossible

Step-by-step explanation:

Two sides of a triangle must always be less than the third.

Answer:

Oki Doki, read below this will be long.

Step-by-step explanation:

So, lets start with mr moy.

First off, we need to figure out the total hours that mr moy worked.

Throuhgout the 7 days of the week, he worked 5 days. These were his hours:

8, 8, 8, 8, 9

Adding these together, you get a total of 41 hours.

Next we have total wage.

To find this, multiply the total hours by the hourly income. We know the hourly income is 12.5, and the total hours is 41:

12.5*41=512.5

So 512.5 is the total wage.

Lets do this for the next four people, I am just going to speed it up a bit:

Ms wong - hours - 8+8+7+9+9 =41. Hourly income - 9.5. Total income: 9.5*41:

389.5 is total income

41 is total hours

Maria - hours - 5+5+6+8+9=33. Hourly income - 7.5. Total income: 7.5*33:

247.5 total income

33 total hours

Tom - 4+4+4+4+4+8+8=36. Hourly income - 7.5. Total income: 7.5*36:

270 total income

36 total hours

Jacob - 5+5+5+7+7 =29. Hourly income - 7.5. Total income: 7.5*29:

217.5 total income

29 total hours

OK, now for the total sums:

Total hourly wages - 7.5+7.5+7.5+12.5+9.5=44.5

Total of the total hours - 41+41+33+36+29=180 hours

Total of total wages - 217.5+512.5+389.5+270+247.5=1637

Ok, thats it for the first page.

On the next pages, I was slightly confused. But Ill try my best.

A - for each employ, calculate total hours and wages. We already did this before.

B - What is the total amount that is paid out in wages in a week. We already did this before(1637)

C - which day is the busiest day of the week - Saturday. The slowest? Monday

So we know the slowest day has to be monday, since the total employment hours is 8+8+4=20. WHich is lower than the rest.

We also know the busiest day has to be saturday, since the total employment hours is 9+9+8+5=31. Which is higher than the rest.

Now to the the third page.

What is the average employe wage?

Lets add up all the wages, and divide by the amount of wages:

7.5+7.5+7.5+9.5+12.5=44.5

44.5/5

=

8.9

This is the average wage.

I dont totally understand part b or c of this answer.

I cannot draw or make a graph and table right now, so I cannot finish your answers.

I hope these help though!

Answer:

I think it 1188mm but not that sure if someone can double make sure

Answer:

382.50

Step-by-step explanation:

Area of the Shaded region = Area of the larger triangle - Area of the smaller triangle;

Let's find the area of the large triangle first;

A = 1/2(base) * (height)

A = 1/2(33) * (33)

A = 16.5 * 33

A = 544.5

Now let's find the area of the small triangle;

A = 1/2(base) * (height)

A = 1/2(18) * (18)

A = 9 * 18

A = 162

Area of the shaded region;

=> 544.5 - 162

=> 382.5 (if rounded to the nearest hundredths, 382.50)

Hope this helps!

Answer:

y = 7x-50 (using slope intercept form and slope point form)

Answer:

47 or 200

Step-by-step explanation:

Answer:

b  ≥ 4

Step-by-step explanation:

12b + 12 ≥ 60

Subtract 12 from each side

12b + 12-12 ≥ 60-12

12b  ≥ 48

Divide each side by 12

12b/ 12 ≥ 48/12

b  ≥ 4

Close circle at 4  line to the right

Answer:

Step-by-step explanation:

12b + 12 ≥ 60

1) add -12 at both members

12b + 12-12 ≥ 60 -12

12b ≥ 48

2) divide both members by 12

12/12 b ≥ 48/12

b ≥ 4

for graph the solutions we have to draw two lines

the first one is an horizontal line that has as equation the right part of the inequality

y = 60

the second one is a line the that passes from the origin and interecpts the first line in (4;60). 4 is the the first number that can be a possible value of the inequality

Equation a line that passes for two points  A (0,0) , B (4,60)

(y-y1)/(y2-y1) = (x-x1)/(x2-x1)

(y - 60)/ (0 -60) = (x - 4) / (0-4)

(-y+60)/60 (-x+4)/4

-y + 60 = -15x + 60

y = 15x

the solutions of the inequality are all the points between the two lines with x≥4 and y≥60

Answer:

The sin of 20 degrees is 0.34202, the same as sin of 20 degrees in radians. To obtain 20 degrees in radian multiply 20° by / 180° = 1/9 . Sin 20degrees = sin (1/9 × .

Step-by-step explanation:

Your welcome! :)

Answer:

9/16

Step-by-step explanation:

You need to find how much 3/4 is of 9/12.

If using a calculator ((3/4) * 9)/12 gives you a decimal of 0.5625 or 9/16