Perform the indicated operation.
(7x + 2x2 - 6x - 4) - (2x+3x2 - 3x + 11)
(7x + 2x2 - 5x - 4) - (2x + 3x² 3x + 11) =
(Simplify your answer. Do not factor.)

Answers

Answer 1

Step-by-step explanation:

1st.

(7x+2×2-6x-4) - (2x+3×2-3x+11)

(7x+4-6x-4)-(2x+6-3x+11)

collect like terms

(7x-6x-4+4)-(2x-3x+11+6)

(x+0)-(-x+17)

multiply - by the bracket

x+0+x-17

collect like terms

x+x+0-17

2x-17=0

2x=17

divide both sides by the coefficient of x

2x/2=17/2

x=17/2


Related Questions

Round this number to the nearest 100,000

927,545

Answers

Answer:

900,000

Step-by-step explanation:

rounding is quite simple, the number 927,545, like all numbers, has different number places/values. the number 9 is in the 100,000th place and to round you look at the number in the place to the right of it which is 2. the number 2 is is less than 5 so it can't raise the number 9 to a ten. because of this, it reduces all of the other numbers to 0. leaving you with the number 900,000

evaluate the expression when b=5

Answers

Answer:

8.   10

11.   10

Step-by-step explanation:

put 5 instead of b

8.  (15 - b)

    = (15-5)

   = (10)

11. b +b

  = 5 +5

  = 10

Times 3 excuse the quality !

Answer the second question. (pls )

Answers

Answer:

How about  c = 15x + 10x?

Step-by-step explanation:

Answer:

i aint too good at this stuff but you can put g=15 and s=10 for the price of just the goby fish and just the shrimp hope this mighta helped

Step-by-step explanation:

Brent needs to paint a logo made using two right triangles. The dimensions of the logo are shown below. What is the difference between the area of the large triangle and the area of the small triangle?

Two right triangles are attached along their longest side. The smaller triangle has height 6 cm and base 2 cm. The height of the larger triangle is 9 cm and its base is 5 cm.

4.5 cm2
8.5 cm2
16.5 cm2
33.0 cm2

Answers

9514 1404 393

Answer:

  (c)  16.5 cm^2

Step-by-step explanation:

The area of each triangle is given by the formula ...

  A = 1/2bh

Smaller triangle area = (1/2)(2 cm)(6 cm) = 6 cm^2

Larger triangle area = (1/2)(5 cm)(9 cm) = 22.5 cm^2

The difference in area is ...

  22.5 cm^2 -6 cm^2 = 16.5 cm^2

If the number 8.2×109 is written in standard notation, it is the number 82 followed by how many zeros?

Answers

Answer:

8 zeroes

Step-by-step explanation:

8.2*10^9=8200000000 which has 8 zeroes

Help!
Which expression is equivalent?
On edge

Answers

Answer: Choice B

[tex]x^{1/8}y^{8}[/tex]

======================================================

Explanation:

The two rules we use are

[tex](a*b)^c = a^c*b^c[/tex]

[tex](a^b)^c = a^{b*c}[/tex]

When applying the first rule to the expression your teacher gave you, we can say that:

[tex]\left(x^{1/4}y^{16}\right)^{1/2} = \left(x^{1/4}\right)^{1/2}*\left(y^{16}\right)^{1/2}[/tex]

Then applying the second rule lets us say

[tex]\left(x^{1/4}\right)^{1/2}*\left(y^{16}\right)^{1/2} = x^{1/4*1/2}*y^{16*1/2} = x^{1/8}y^{8}[/tex]

Therefore,

[tex]\left(x^{1/4}y^{16}\right)^{1/2} = x^{1/8}y^{8}[/tex]

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

In short, we just multiplied each exponent inside by the outer exponent 1/2.

So that explains why the exponents go from {1/4,16} to {1/8,8} for x and y in that exact order.

Solve the system using a matrix.
3x -y + 2z =7
6x -10y + 3z =12
x – y + 4z = 9
([?],[ ], [ ] )
Give your answer as an ordered triple.​

Answers

Answer:

(1, 0, 2)

Step-by-step explanation:

[3   -1  2 | 7  ]

|6 -10  3 | 12|

[1   -1   4 |  9 ]

To the first row, add -3 times the values of the third row

To the second row, add -6 times the values of the third row

[0   2  -10 | -20 ]

|0  -4  -21 | -42 |

[1    -1    4 |  9   ]

To the second row, add 2 times the values in the first row

[0   2  -10 | -20 ]

|0  0  -41  | -82 |

[1    -1    4 |  9   ]

z =  -82 / -41

z = 2

2y - 10(2) = -20

y = 0

x - 0 + 4(2) = 9

x = 1

Jenna has
131
131131 dog biscuits. She wants to give them as gifts to each of her
4
44 poodles.

Answers

Hi! I'm happy to help!

To solve for how many biscuits each poodle gets, we have to split or divide the amount of biscuits by the amount of poodles. (We will use division)

131,131,131÷444

295,340.3851... rounded to 295,340

So, each poodle will receive 295,340 dog biscuits. (A LOT)

I hope this was helpful, keep learning! :D

a mechanic has the length of a hole 6 feet long what is the length after two inches is cut off?​

Answers

The answer is 70 inches

There are 21 red apples and 18 green apples. What is the ratio of green to red apples?

Answers

Answer:

A possible can be 7 red apples for every 6 green apples.

Step-by-step explanation:

21 and 18 have a common factor of 3. 21/3 =7 and 18/3=6. So the answer can be 7 red apples for every 6 green apples. Hope this helps

Can anyone help please?

Answers

Ok ok im gonna with C but if it’s wrong i am sooo sorry

if x^3+ax^2+bx=6 is exactly divisible by (x-1), prove that a+b=5.​

Answers

Step-by-step explanation:

x-1=0

x=1

subtitute value of x

p(x)=x^3+ax^2+bx

p(1)=(1)^3+a(1)^2+b(1)

p(1)=1+a+b

as p(x) =6. (given)

1+a+b=6

a+b=6-1

a+b=5

Help??????? Please please help me please

Answers

Answer:

17 +158 *55 /45

Step-by-step explanation:

maaf kalo salah

Please help

Find the equation to the line below.
1 1
y = [? ]x +
[ ]

Answers

The answer is y=4x+1! Explanation: the slope is 4, and the y intercept is 1. Hope this helps!

Determine the simple interest. The rate is an annual rate. Assume 360 days in a year.
p = $390, r=6.25%, t = 2.75 years
HERE
The simple interest is $0
(Round to the nearest cent as needed.)

Answers

9514 1404 393

Answer:

  $67.03

Step-by-step explanation:

The interest formula is ...

  I = Prt

Using the given values, we have ...

  I = $390·0.0625·2.75 = $67.03125 ≈ $67.03

The simple interest is $67.03.

_____

Additional comment

Here, the time period is given in years. The number of days per year is only relevant if the time period is given as a number of days or other sub-unit of a year.

If TU = 13x − 1, UV = 6x − 2, and TV = 18x + 15, what is TV?

Answers

Answer:

303

Step-by-step explanation:

13x + 1 + 6x - 2 = 18x + 15

19x - 1 = 18x + 15

19x = 18x + 16

x = 16

18(16)+ 15

288 + 15

303

Find the place value of 7 in 374596

Answers

Answer:

It is tens

Step-by-step explanation:

3 » ones

[tex]{ \boxed{ \sf{7 \: » \: tens}}}[/tex]

4 » hundreds

5 » thousands

9 » ten thousands

6 » hundred thousands

An artillery shell leaves a cannon at a speed of 400 meters per second. What is its speed in miles per hour

Answers

The speed is 894.775 mile per hour.

What is the speed?

The certain distance travelled in certain time is speed.

Speed = distance/time.

How to calculate the speed in mile per hour?

1 meter per second = 2.23694 mile per hour

Therefore, 400 meter per second = (400*2.23694) mile per hour

=894.775.

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the eleventh term of an A.P 25 and its first term -3 find its common difference​

Answers

Answer: common difference = 2.8

Explanation:

Common diff = (25 -(-3)/(11 - 1) = 28/10 = 2.8

I need help solving this question pleeeeasse

Answers

Answer:

Step-by-step explanation:

I’m not what are you talking about

36. What number shows a temperature of 9° below zero?​

Answers

Answer:

-9*

Step-by-step explanation:

1. anything below zero is negative

2.if you say a positive temperature such as this example (9) then say below zero it is is always going to be a negative temperature

A temperature of 9° below zero is represented by the number -9.

The negative sign indicates that the temperature is below zero on the Celsius or Fahrenheit scale. It means that the actual temperature is 9 degrees lower than the freezing point of water. For example, if the freezing point is 0°C, a temperature of -9°C would indicate that it is 9 degrees below freezing.

Similarly, on the Fahrenheit scale, a temperature of -9°F would indicate that it is 9 degrees below the freezing point of 32°F. Negative temperatures signify colder conditions than the reference point of zero degrees.

Therefore, a temperature of 9° below zero is represented by the number -9.

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50 Points to correct answer!!!

what is the average rate of change from 2 to 9 of the function represented by the graph?

Answers

Answer:

-3/7

Step-by-step explanation:

It is asking to find the slope of the secant line going through points (2,f(2)) and (9,f(9)).

We must find f(2) by looking at the curve at x=2. We should see that y=2 there so f(2)=2.

We must find f(9) by looking at the curve at x=9. We should see that y=-1 there so f(9)=-1.

The slope of a line is calculated by finding the ratio of the change of y to the change of x.

(-1-2)/(9-2)

(-3)/(7)

-3/7

Find the area of the triangle.

A. 19.2 yd²
B. 9.3 yd²
C. 8.5 yd²
D. 17.1 yd²

Answers

Answer:

8.5 yd sq.

Step-by-step explanation:

[tex]area \: of \: triangle = \frac{1}{2} \times \sin(156) \times 6 \times 7 \\ = 0.41 \times 21 \\ = 8.5[/tex]

What is the smallest number that has both 8 and 9 as a
factor?
A 72
B 36
C 54
D 48

Answers

Answer:

A

Step-by-step explanation:

8 and 9 can go in 72.

Look for the LCM of 72

Answer:

72

Step-by-step explanation:

72 has both 8 and 9 as its factors from the alternatives

Apart from 72,

the available options does not have both 8 and 9 being its factors.

3 3/5 divided by 1/6?

Answers

Answer:

10.8

Step-by-step explanation:

3 3/5 divided by 1/6

(3(3/5))/(1/6)

(9/5)/(1/6)

54/5

10(4/5)

10.8

HLP HLP HLP HLP 10 10 10

Answers

Answer:

B. [tex]4^{6}[/tex] ÷ [tex]5^{6}[/tex]

Step-by-step explanation:

its a formula

jordan drank 36 ounces of water today , how many cups of water did he drink ?
a. 4.5 cups
b. 9 cups
c. 18 cups
d. 288 cups

answer asapppp 2 .​

Answers

Answer:

jordan drinks 4.5 cup of water

What are m and b in the linear equation, using the common meanings of m and b? 2 + 3x + 5 - 2x = y​

Answers

y=mx+b

[tex]\\ \sf\longmapsto y=2+3x+5+2x[/tex]

[tex]\\ \sf\longmapsto y=3x+2x+2+5[/tex]

[tex]\\ \sf\longmapsto y=5x+7[/tex]

Hence

m=5,b=7

If the area of the square above is 144 what is the value of x

Answers

Answer:

It should be 12, but x wasn't defined. My condition could be wrong though.

If the area of the square above is 144. The value of x is the length of the side of the square which is 12 units.

What is the area of a square?

The area of a square can be calculated as the square of the sides of a given figure.

The area of a square = side x side

We have given the area of the square above is 144.

Let x be the side of the given square.

The area of a square = side x side

[tex]144 = x \times x\\\\144 = x^2\\\\x =\sqrt{144} \\\\x = 12[/tex]

Hence, the length of the side is 12 units.

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A prisoner is planning to escape from prison! The prison s gate consists of horizontal and vertical bars that are spaced one unit apart so the area of each hole between the bars is 1 x 1. The prisoner manages to remove certain bars to make some bigger holes. Determine the area of the largest hole in the gate after the bars are removed in java

Answers

Answer:

2

Step-by-step explanation:

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