I need help with finding the sum of (x^4 + 2x^3 - 7x - 9) + (x^5 - 2x^4 + 8x + 18) in standerd form

my answer is x^5 - x^4 + 2x^3 + x^2 + 9
is this correct
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Answer:

-8y + 7x

I think, sorry if it's wrong

Answer:

-x-13y

Step-by-step explanation:

sum=add

(7x-5y)+(-8x-8y)

Combine like terms

7x+(-8x)

-1x or -x

-5y+(-8y)

-13y

-x-13y

hope this helps

Using the appropriate arithmetic principle, the solutions to the problems posed are as follows ;

1.)

\( 24 = 3 \times 2^{x} \)

Divide both sides by 3

\( \frac{24}{3}= 2^{x} \)

\( 8 = 2^{x} \)

\( 2^{3} = 2^{x} \)

x = 3

2.)

\( \frac{3}{5} = \frac{x}{15}\)

Cross multiply

5x = 15 × 3

5x = 45

x = 9

3.)

Multiples of 7:

7 × 1 = 7

7 × 2 = 14

7 × 3 = 21

7 × 4 = 28

7 × 5 = 35

7 × 6 = 42

7 × 7 = 49

The missing multiples are : 14, 35, 42

4.)

42 = 7 × 6

6 = 2 × 3

Missing values are 7 and 3 respectively

5.)

5, 7 and 2

6.)

\( a \div 2 = \frac{a}{2}\)

\( a \cdot 2 = 2a\)

\( a^{2} = a \cdot a \)

\( a+a+a = 3a\)

\( 0a = 0\)

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Answer: Therefore,

1 + (-5/8)

Solve it,

= 1-(5/8)

= (8-5)/8

= 3/8

Step-by-step explanation:

Answer:

I d k

Step-by-step explanation:

i don't know

LOL

We have to know that the essence of carrying out an experiment is that we could be able to play on the variables that are in the problem. As such, as we vary the independent variable there would be a change in the dependent variable.

For the experiment that we have here, we know that Brenda is going to increase the amount of nitrogen in the soil to see if it has any effect on the fragrance strength of her roses.

Learn more about experiment:https://brainly.com/question/30055326

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Answer:

the two dimensions are represented by rows and columns.

Step-by-step explanation:

Answer:

X=28.5

Step-by-step explanation:

Hope this helps!

Answer:

x=28.5

Step-by-step explanation:

x=1+12+23-7,5

x=13+23-7,5

x=36-7,5

x=28,5

:))

Answer:

480 in3

Step-by-step explanation:

10 * 8 * 5 + ( 4 * 4 * 5 ) = 480in3

Answer:

480 in^3

Step-by-step explanation:

The first, smaller container where I split it has an equation of V= 4*4*6=80 in^3 and the second, larger container has an equation of V= 5*10*8= 400 in^3

80+400= 480 in^3

Answer:

Hushbshej

Step-by-step explanation:

Answer:c

Step-by-step explanation:

Answer:

it's c

Step-by-step explanation:

khan academy

Answer:

14, decrease

17, increase

84.53

399

Step-by-step explanation:

a lot of division if you need me to explain it ask

Answer:

bike :15 %

scooter:17%

tennis: 84.53

skis: 399.00

Answer: A

Step-by-step explanation:

median: 7+7=14

14/2=7✅

mode: 7 shows up the most (twice)

By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042

Answer:

By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042

Step-by-step explanation:

Answer:

Step-by-step explanation:

\(\bigg(3^6\bigg)^{\frac{1}{2}}\)

use

\((a^n)^m=a^{n\cdot m}\)

\(\bigg(3^6\bigg)^{\frac{1}{2}}=3^{6\cdot\frac{1}{2}\)

simplify

\(6\!\!\!\!\diagup^3\cdot\dfrac{1}{2\!\!\!\!\diagup_1}=3\cdot\dfrac{1}{1}=3\cdot1=3\)

other

\(6\cdot\dfrac{1}{2}=\dfrac{6\cdot1}{2}=\dfrac{6}{2}=3\)

therefore

\(\bigg(3^6\bigg)^{\frac{1}{2}}=3^{6\cdot\frac{1}{2}}=3^3=\underbrace{3\cdot3\cdot3}_{3}=27\)

\(\displaystyle\bf \boldsymbol{\boxed{(a^n)^m=a^{n\cdot m}}} \\\\(3^6)^{\frac{1}{2}} =3^{\frac{6}{2} }=3^3=\boldsymbol{{\boxed {27}}}\)

Answer:

9. A

10. D

11. True

Step-by-step explanation:

I might be incorrect sorry :(

Answer:

i think the person that answered first is correct

Step-by-step explanation:

Answer:

Subtract the two diameters and multiply by 3107-11-05-20-05-task

Calculate the circumference of the coin.

Subtract the circumference of the hole from the circumference of the coin.

Calculate the radius of the hole.

Step-by-step explanation:

Answer: 3.14 multiplied by 35 squared gives you 3,850, So the answer is C

Step-by-step explanation:

Answer:

Step-by-step explanation:

Option A

9.21 * 10³ = 9,210 ≠ 921

Option A is FALSE.

Option B

9.21 * 10¹ = 92.1

Option B is TRUE.

Option C

0.921 * 100 = 92.1 ≠ 921

Option C is FALSE

Option D

0.921 * 10⁴ = 9,210

Option D is TRUE

Option E

0.0921 * 10² = 9.21

Option E is TRUE

Answer:

-look below!

Step-by-step explanation:

equation: s=3+4    s=sister

process: you would add 3 to 4 which is 7, the age of Raymond’s sister.

Raymond’s sister is 7 years old.

There are none. Absolute values are always positive

Answer:

67 leashes

Step-by-step explanation:

Answer:

x=8.25

Step-by-step explanation:

8x=66

x=66/8

x=8.25

Answer below:

4 x (58 x 25) = 4 x (25 x 58) = (25 x 4) x 58 = 5800

(293 x 50) x 20 = 293 x (50 x 20) = 293000

The required solutions would be below which are commutative Properties of Multiplication illustrated here:

4 × (58 × 25) = 4 × (25 × 58) = (25 × 4) × 58 = 5800

(293 × 50) × 20 = 293 × (50 × 20) = 293000

The commutative property of multiplication says that the result is unchanged by how we multiply the two integers.

If 3 and 7 are the numbers, then 3 × 7 = 21, and 7 × 3 is also equal to 21. Thus 3 × 7 = 7 × 3. Therefore, the commutative property holds true for the multiplication of numbers.

According Commutative Property of Multiplication,

4 × (58 × 25) = 4 × (25 × 58) = (25 × 4) × 58 = 5800

(293 × 50) × 20 = 293 × (50 × 20) = 293000

Hence, the numbers are commutative Property of Multiplication is illustrated here.

Learn more about the commutative property of multiplication here:

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Answer:

10x^2+420x+1170

Step-by-step explanation:

(2x+78) (5x+15)

2x (5x+15)+78(5x+15)

10x^2+30x+78(5x+15)

10x^2+30x+390x+1170

10x^2+420x+1170

Answer:

I got the answer!!

Step-by-step explanation:

\(\frac{1}{w^{6} }\) i hope this helps!!

Answer:

The simplified expression is 1/w^6.

Step-by-step explanation:

Using the product of powers exponent rule, we have

w^3 * w^(-9) = w^(3 + (-9)) = w^(-6).

However, the problem says to write the expression using only positive exponents. Here's an example of how to interpret negative exponents as positive exponents:

3^2 = 9

3^1 = 3

3^0 = 1

3^(-1) = 1/3

(and keeps on dividing by three onward)

Here, we see that 3^(-1) = 1/3^1.

Applying the same logic here, we have

w^(-6) = 1/w^6.

I hope this helps!