Simplify 7x + x +2 help plssss I’m begging u rawrrr

Answer: 16.5%

Step-by-step explanation:

given data:

estimated circumfrence of the earth = 250,000 stadia.

Actual value = 46,620km

expected Value = 40,030.3km

solution:

percentage error = actual value – expected value/ expected value * 100

= 46,620 – 40,030.3 / 40,030.3 * 100

= 6589.7 / 40,030.3 * 100

= 0.16462 * 100

= 16.5%

percentage error is 16.5%

The least possible number of matches played when 4 players are left is 37 matches.

The given parameters;

The least possible number of matches played when 4 players are left is calculated as;

117 - 1(3n) = 4

117 - 3n = 4

3n = 117 - 4

3n = 113

divide both sides by 3

[tex]n = \frac{113}{3} \\\\n = 37.67 \\\\n \approx 37 \ matches[/tex]

Thus, the least possible number of matches played when 4 players are left is 37 matches.

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Answer:

34+24.5h

Step-by-step explanation:

Answer:

4 Jeans and 2 dresses

Step-by-step explanation:

25×4=100

50×2=100

You  want to take home 6 items of clothing. you can buy 4 jeans and 2 all dresses using 200 dollars .

Given :

You discover a store that has all jeans for $25 and all dresses for $50

Total of 6 items needed

Total amount you can spend is 200 dollars

Let x be the number of jeans and y be the number of all dresses

Lets frame equations using x  and y

Total of 6 items ,

[tex]x+y=6\\y=6-x[/tex]

all jeans is for  $25 and all dresses is for $50. total of 200 dollars can spend

[tex]25x+50y=200[/tex]

Substitute y=6-x in second equation

[tex]25x+50(6-x)=200\\25x+300-50x=200\\-25x+300=200\\-25x+300-300=200-300\\-25x=-100\\\frac{-25x}{-25}=\frac{-100}{-25}\\x=4[/tex]

Now substitute x=4 in first equation

[tex]y=6-x\\y=6-4\\y=2[/tex]

you can by 4 jeans and 2 all dresses

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Answer:

-47

Step-by-step explanation:

Answer:

-47

Step-by-step explanation:

The opposite of a number is just the number on the opposite side of zero on the number line.

For example, the opposite of 5 is -5.

Answer:

see attechment: - vertex  (-1, 8)

Step-by-step explanation:

focus | (-1, 63/8) = (-1, 7.875)

vertex | (-1, 8)

semi-axis length | 1/8 = 0.125

focal parameter | 1/4 = 0.25

eccentricity | 1

directrix | f = 65/8

Answer:

the answer is 13, because you need to divide 91 by 7.

Answer:

108/9 needs to be raised to the power of 0

Step-by-step explanation:

Any number that has an exponent of 0 equals 1.  So:

(108/9)^0x10=10

Answer:

-55 + 275

Step-by-step explanation:

You add the total earned to the expenses. The expenses are a negative integer.

-55 + 275

Complete Question

The complete question is shown on the first uploaded image

Answer:

The value is  [tex]y  =  5sin3x[/tex]

Step-by-step explanation:

From the question we are told that  

   [tex]y =  c_1\ cos3x + c_2 \  sin 3x[/tex]

given that y(0) =  0

We have that  

     [tex]c_1\ cos3(0) + c_2 \  sin 3(0)  =  0[/tex]

=>   [tex]c_1 =  0[/tex]

This means that

           [tex]y  =  c_2 \  sin 3x[/tex]

We also given that

          [tex]y[\frac{\pi}{6} ] =  5[/tex]

So  

         [tex]c_2  sin (3 *  \frac{\pi}{6} )  =  5[/tex]

=>    [tex]c_2  =  5[/tex]

Hence  

     [tex]y  =  5sin3x[/tex]

Answer:

..

Step-by-step explanation:

Answer:

U need to copy and paste more of the question

Step-by-step explanation:

Start copy at the top go all the way to the bottem of the question and paste into brainly.

use ctrl c for copy and crtl v for paste

Answer:

Then 9/20 got them right

Step-by-step explanation:

20/20-11/20=9/20

there isn't enough context so that's the best i can do

Answer:

4.1 is greater

Step-by-step explanation:

4.1 is greater than 4.08 by 0.02 units

Answer:

4.1

Step-by-step explanation:

4.1 can also be written as 4.10 . Now if we compare 4.08 & 4.10 then in 4.10 , then

4.10 > 4.08 (because 0.10 is greater than 0.08 by 0.02 units )

Answer:

The prime factors are: 2 x 3 x 3 x 5 x 7

or also written as { 2, 3, 3, 5, 7 }

Written in exponential form: 2 x 3 × 3 x 5 ×1  x 7×1

Answer:

Step-by-step explanation:

x + 1 = 10

x = 9

Answer:

x = 9

Step-by-step explanation:

x + 1 = 10

=> x = 10 - 1

=> x = 9

Answer:

Isnt it 12? the first rectangle says 2 on one side and 6 on another. The rectangle didn't change shape, but position.

Am I right??

Answer:

  (x -12)^2 -149 = 0

Step-by-step explanation:

Add and subtract the square of half the x-coefficient:

  x^2 -24x +(-24/2)^2 -(-24/2)^2 -5 = 0

  (x -12)^2 -149 = 0

Answer:This graph parabola is not a function

The answer is 1728

First you must set up the equation

[tex](\frac{4*6}{2})^3[/tex]

Then, you must multiply the numerator

[tex](\frac{24}{2} )^3[/tex]

Next, divide

[tex](12)^3[/tex]

Finally, simplify exponents

[tex](12^3) =12*12*12[/tex]

12*12*12=1728

Answer:

3

Step-by-step explanation:

4 ×6 :2 ^3 =

24 :8 =

3

Answer:

2 is the answer to the question I think

Answer:

[tex]Estimated\ Commission = \$618[/tex]

[tex]Exact\ Commission = \$592.25[/tex]

Step-by-step explanation:

Given

[tex]Commission = \$5.75[/tex]

[tex]Items = 103[/tex]

Required

Find the estimate and exact commission

Estimate Commission

First, we need to approximate the given commission

[tex]Commission = \$6[/tex]

[tex]Estimated\ Commission = Commission * Items[/tex]

[tex]Estimated\ Commission = \$6 * 103[/tex]

[tex]Estimated\ Commission = \$618[/tex]

Exact Commission

[tex]Exact\ Commission = Actual\ Commission * Items[/tex]

[tex]Exact\ Commission = \$5.75 * 103[/tex]

[tex]Exact\ Commission = \$592.25[/tex]

Answer:

no

Step-by-step explanation:

b to d is 4 jumps away and c and e is 10 jumps

edit i meant 8 and d i messed up the calculations but the answer is correct

BD is 8 units long

CE is 10 units long

BD and CE are NOT congruent.

Answer: 3√2

Step-by-step explanation:

i had a quiz with this question and it said this was the correct answer

Answer:

ahhh i dont remeber

Answer:

Step-by-step explanation:

You just need to find the corresponding coordinates on the graph by using one of the coordinates and the graph.

4) Find f(0.8)

Find the point 0.8 on the x-axis and check the point the vertical line from that point crosses the graph. See what that point is on the y-axis.

This is point 1

The answer is 1, the point has coordinates (0.8, 1)

5) Find x when f(x) = 3

Find the point of the graph against 3 on the y- axis

And check what is corresponding point on x-axis, this is point 4

So the answer is 4, the point has coordinates of (4,3)

Answer:?

Step-by-step explanation:

Answer:

The opposite of 25 degrese is -25 degrese.

Step-by-step explanation:

The opposite 25 degrees will be 205 degrees.

The angle is the distance between the intersecting lines or surfaces. The angle is also expressed in degrees. The angle is 360 degrees for one complete spin.

For the opposite angle, add 180° to the given angle.

The opposite 25 degrees will be

⇒ 25° + 180°

⇒ 205°

The diagram is given below.

More about the angled link is given below.

https://brainly.com/question/15767203

#SPJ2

Answer:

mom

Step-by-step explanation:

Answer:

.

Step-by-step explanation:

Answer:

See Explanation

Step-by-step explanation:

Please note that I'll replace all � with +

1. |10|

This implies the absolute value of 10 and it always returns the positive value;

Hence;

[tex]|10| = 10[/tex]

2. |-4|

Using the same law applied in (1)

[tex]|-4| = 4[/tex]

3.  5/8 - 3/8 = ?

Take LCM

[tex]= \frac{5 - 3}{8}[/tex]

Subtract the numerator

[tex]= \frac{2}{8}[/tex]

Divide the numerator and denominator by 2

[tex]= \frac{1}{4}[/tex]

Hence:

[tex]\frac{5}{8} - \frac{3}{8} = \frac{1}{4}[/tex]

4. 7/8 - 5/6

Take LCM

[tex]= \frac{21 - 20}{24}[/tex]

[tex]= \frac{1}{24}[/tex]

Hence;

[tex]\frac{7}{8} - \frac{5}{6} = \frac{1}{24}[/tex]

5. 6 * (-7/2)

[tex]= 6 * \frac{-7}{2}[/tex]

Multiply the numerator

[tex]= \frac{-42}{2}[/tex]

[tex]= -21[/tex]

Hence:

[tex]6 * \frac{-7}{2} = -21[/tex]

5. 6/5 /(-12/25)

[tex]= \frac{6}{5} / \frac{-12}{25}[/tex]

Change the divide to multiplication

[tex]= \frac{6}{5} * \frac{-25}{12}[/tex]

Divide 6 and 12 by 6

[tex]= \frac{1}{5} * \frac{-25}{2}[/tex]

Divide 5 and 25 by 5

[tex]= \frac{1}{1} * \frac{-5}{2}[/tex]

[tex]= \frac{-5}{2}[/tex]

Hence;

[tex]\frac{6}{5} / \frac{-12}{25} = \frac{-5}{2}[/tex]

6.  3 + 4^2  * 2

[tex]= 3 + 4^2 * 2[/tex]

Solve the exponent

[tex]= 3 + 16 * 2[/tex]

Apply B.O.D.M.A.S

[tex]= 3 + 32[/tex]

[tex]= 35[/tex]

[tex]3 + 4^2 * 2 = 35[/tex]

7.  2/3 + 5/6

[tex]= \frac{2}{3} + \frac{5}{6}[/tex]

Apply LCM

[tex]= \frac{4 + 5}{6}[/tex]

[tex]= \frac{9}{6}[/tex]

Divide the numerator and denominator by 3

[tex]= \frac{3}{2}[/tex]

Convert to mixed fraction

[tex]= 1\frac{1}{2}[/tex]

Hence;

[tex]\frac{2}{3} + \frac{5}{6} = 1\frac{1}{2}[/tex]

8.  16 - 12/(-4)

[tex]= 16 - \frac{12}{-4}[/tex]

Solve the fraction

[tex]= 16 - (-3)[/tex]

Open the bracket

[tex]= 16 + 3[/tex]

[tex]= 19[/tex]

Hence;

[tex]16 - \frac{12}{-4} = 19[/tex]

9.   -9(3w + x + 2)

[tex]= -9(3w + x + 2)[/tex]

Open brackets: Distributive property

[tex]= -9*3w -9* x -9 * 2[/tex]

[tex]= -27w -9 x -18[/tex]

Hence;

[tex]-9(3w + x + 2) = -27w -9 x -18[/tex]

10.  -2(w + 2) + 5w

[tex]= -2(w + 2) + 5w[/tex]

Open bracket: using distributive property

[tex]= -2*w -2 * 2 + 5w[/tex]

[tex]= -2w -4 + 5w[/tex]

Collect Like Terms

[tex]= 5w-2w -4[/tex]

[tex]= 3w -4[/tex]

Hence;

[tex]-2(w + 2) + 5w = 3w- 4[/tex]

11.   16x^2 + 8 + 10x + 2x^2 + 14x

[tex]= 16x^2 + 8 + 10x + 2x^2 + 14x[/tex]

Collect Like Terms

[tex]= 16x^2 + 2x^2 + 10x + 14x+ 8[/tex]

[tex]= 18x^2 + 24x + 8[/tex]

Expand the expression

[tex]= 18x^2 + 12x + 12x + 8[/tex]

Factorize:

[tex]= 6x(3x + 2) + 4(3x +2)[/tex]

[tex]= (6x + 4)(3x +2)[/tex]

Hence;

[tex]16x^2 + 8 + 10x + 2x^2 + 14x = (6x + 4)(3x +2)[/tex]

12. b = -5 and y = 6

[tex]b + 9y =?[/tex]

Substitute -5 for b and 6 for y

[tex]= -5 + 9 * 6[/tex]

[tex]= -5 + 54[/tex]

[tex]= 49[/tex]

Hence;

[tex]b + 9y = 49[/tex]

13.    y = -3

[tex]y^2 + 5y + 4 =?[/tex]

Substitute -3 for y

[tex]= (-3)^2 + 5(-3) + 4[/tex]

Open all brackets

[tex]= 9 -15 + 4[/tex]

[tex]= -2[/tex]

Hence;

[tex]y^2 + 5y + 4 = -2[/tex]

14.  

[tex](-4)^3[/tex]

Open bracket:

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

[tex]= -64[/tex]

Hence;

[tex](-4)^3 = -64[/tex]

[tex](-7)^2[/tex]

Open bracket:

[tex]= -7 * -7[/tex]

[tex]= 49[/tex]

Hence;

[tex](-7)^2 = 49[/tex]

15.  Express as fractions:

[tex]\frac{3}{5^3}[/tex]

Evaluate the denominator

[tex]= \frac{3}{125}[/tex]

Hence:

[tex]\frac{3}{5^3} = \frac{3}{125}[/tex]

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

Evaluate the exponent

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

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

Hence:

[tex](\frac{-1}{3})^2=\frac{1}{9}[/tex]

16. Evaluate

[tex](-7)^0 =[/tex]

Evaluate the exponent

[tex](-7)^0 = 1[/tex]

[tex]2 * (1/3)^0[/tex]

Evaluate the exponent

[tex]= 2 * 1[/tex]

[tex]= 2[/tex]

Hence;

[tex]2 * (1/3)^0 = 2[/tex]

17. Evaluate

[tex]3v^2(-5v^4)[/tex]

Open bracket

[tex]= 3 * v^2*-5* v^4[/tex]

Reorder

[tex]= 3 *-5* v^4 * v^2[/tex]

[tex]= -15* v^4 * v^2[/tex]

Apply law of indices

[tex]= -15* v^{4 +2}[/tex]

[tex]= -15* v^6[/tex]

[tex]= -15v^6[/tex]

Hence:

[tex]3v^2(-5v^4) = -15v^6[/tex]

18.

[tex]2y^2w^4*6y*2w^8[/tex]

Rewrite as

[tex]2 *y^2 * w^4*6 * y*2 * w^8[/tex]

Reorder the terms

[tex]=2*6 * w^4 * w^8*y^2 * y*2[/tex]

[tex]=12 * w^4 * w^8*y^2 * y*2[/tex]

Apply law of indices

[tex]=12 * w^{4+8} *y^{2+2}[/tex]

[tex]=12 * w^{12} *y^4[/tex]

[tex]=12 w^{12} y^4[/tex]

Hence:

[tex]2y^2w^4*6y*2w^8 =12 w^{12} y^4[/tex]

19.

[tex](\frac{4p^3}{3p^7})^{-2}[/tex]

Apply law of indices

[tex]= (\frac{4p^{3-7}}{3})^{-2}[/tex]

[tex]= (\frac{4p^{-4}}{3})^{-2}[/tex]

Apply law of indices

[tex]= (\frac{4}{3p^4})^{-2}[/tex]

Apply law of indices

[tex]= (\frac{3p^4}{4})^{2}[/tex]

[tex]= (\frac{3p^4}{4}) * (\frac{3p^4}{4})[/tex]

Evaluate

[tex]= \frac{9p^8}{16}[/tex]

Hence;

[tex](\frac{4p^3}{3p^7})^{-2} = \frac{9p^8}{16}[/tex]

20.

[tex]\frac{x^{-2}}{x^{-3}}[/tex]

Apply law of indices

[tex]= x^{-2 - (-3)}[/tex]

[tex]= x^{-2 +3}[/tex]

[tex]= x^1[/tex]

[tex]= x[/tex]

Hence:

[tex]\frac{x^{-2}}{x^{-3}} =x[/tex]

Answer: So 5 + x = 8 beacase x is 3

Step-by-step explanation: