Pls help me out and pls show me the work :(

Answer: id k i think b sorry if it wrong

Step-by-step explanation:

Answer:

ok

Step-by-step explanation:

Answer:

We conclude that:

[tex]\sqrt{\left(-81\right)x^2}=9ix[/tex]

Step-by-step explanation:

Given the radical expression

[tex]\sqrt{\left(-81\right)x^2}[/tex]

simplifying the expression

[tex]\sqrt{\left(-81\right)x^2}[/tex]

Remove parentheses:  (-a) = -a

[tex]\sqrt{\left(-81\right)x^2}=\sqrt{-81x^2}[/tex]

Apply radical rule:   [tex]\sqrt{-a}=\sqrt{-1}\sqrt{a},\:\quad \mathrm{\:assuming\:}a\ge 0[/tex]

                 [tex]=\sqrt{-1}\sqrt{81x^2}[/tex]

Apply imaginary number rule:  [tex]\sqrt{-1}=i[/tex]

                 [tex]=i\sqrt{81x^2}[/tex]

Apply radical rule:   [tex]\sqrt[n]{ab}=\sqrt[n]{a}\sqrt[n]{b},\:\quad \mathrm{\:assuming\:}a\ge 0,\:b\ge 0[/tex]

                  [tex]=\sqrt{81}i\sqrt{x^2}[/tex]

                  [tex]=9i\sqrt{x^2}[/tex]

Apply radical rule:  [tex]\sqrt[n]{a^n}=a,\:\quad \mathrm{\:assuming\:}a\ge 0[/tex]

                  [tex]=9ix[/tex]

Therefore, we conclude that:

[tex]\sqrt{\left(-81\right)x^2}=9ix[/tex]

Answer:

9

Step-by-step explanation:

The average is just another word for mean. You get the mean by adding all the numbers in a data set and then dividing by the number you added.

Hope this helps!

Answer:

-4.2

Step-by-step explanation:

1.8+ (-6)

Answer:

x+9

Step-by-step explanation:

4x³+12x²-72x

=4x(x²+3x-18)

=4x[x²+6x-3x-18]

=4x[x(x+6)-3(x+6)]

=4x(x+6)(x-3)

Answer:

71

Step-by-step explanation:

500 / 7 = 71

Answer:

793.787 or 800

Step-by-step explanation:

Answer: (-2,1)

Step-by-step explanation:

Read it lije (x,y)

Answer:

The answers are A, E and F because the amount Darren's friend adds to his savings each week is a faster rate or higher amount than $40 dollars:

y = 75x(higher than 40) + 120

y = 120 + 50x(higher than 40)

y = 87x(higher than 40) + 120

Answer:

A

Step-by-step explanation:

Responder:

-39; 170

Explicación paso a paso:

Según la regla de los signos:

(-) * (-) = +

(-) * (+) = -

(+) * (-) = -

(+) * (+) = +

Por lo tanto, usar lo anterior como guía ayudará a comprender las reglas de los signos.

Para :

-34 (-5)

Si la pregunta requiere suma o resta

-34 - 5 = - 39

Si la pregunta requiere multiplicación:

-34 (-5) = 170

Answer:

Step-by-step explanation:

You first have to find the area of the square grid

To find this you multiply the sides

14 * 14 = 196

Next you have to find the area of the triangle

To find the area of a triangle you use the equation

h is height

b is base

Put in the values you know

Multiply

The area of the triangle is 49 inches squared

You divide the area of the triangle by the area of the square

196 / 49 = 4

The answer is 4 triangles

Answer:

[tex]5\frac{1}{8}[/tex]

Step-by-step explanation:

5 3/4 = 23/4

(23/4)2 = 46/8

46/8 - 5/8 = 41/8 = 5 1/8

Answer:

Yes it is

Step-by-step explanation:

4d + 3d = 7d so 7d + 15 would be the expression for both except it would only be 3d + 4d = 7d and 7d + 15 is the same as the first expression that I got from evaluating 4d + (15 + 3d).

______________________________

So your answer [tex]\bold{7d+15=7d+15}[/tex].

______________________________

Answer:

333 meters per second

Step-by-step explanation:

Answer:

14) 333 meters per second

15) True

Step-by-step explanation: hope this help :)

Answer:

a)57,600 b)12.5% increase

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

the answer is (x,y) (1/4 -13/4)

Answer:

Step-by-step explanation:

12,800 written as 1.28 x 104 in scientific notation

Answer:

2x+11=25

7

Step-by-step explanation:

I think of a number (x) and double it (multiply it by 2) and then add 11

put this all together and get

2x+11=25

Solve for x

2x=14

x=7

Answer:

2x+11=25

Step-by-step explanation:

x=7

Answer is A

Step-by-step explanation:

Answer:

linear.

Step-by-step explanation:

It has a slope and a y value

Answer:

SUPRISEEEEEEEEEEEEEEEEEE

Answer:

1 5/32

Step-by-step explanation:

First, find common denominators. What you do to the denominator, you must do to the numerator.

First, multiply 4 to both the numerator and denominator of the second fraction:

(7/8)(4/4) = (7 * 4)/(8 * 4) = 28/32

Next, add across:

9/32 + 28/32 = 37/32

Simplify. Turn the improper fraction into a mixed fraction:

37/32 = (32 + 5)/32 = 1 5/32

1 5/32 is your answer.

~

Answer:

37 /32

Step-by-step explanation:

Find the least common denominator or LCM of the two denominators:

LCM of 8 and 32 is 32

For the 1st fraction, since 8 × 4 = 32,

7 /8  =  7 × 4

       8 × 4 =  28 /32

Likewise, for the 2nd fraction, since 32 × 1 = 32,

9 /32  =  9 × 1

          32 × 1 =  9 /32

Add the two fractions:

28 /32 +  9/32 =  28 + 9 /32  =  37 /32

So, 7/8 + 9/32 = 37/32

In mixed form: 1 5 /32

Please mark as brainliest!

The expanded form of the given number is 8×1+4×1/10×7×1/100+8×1/1000 (option c)

We break up a number according to its place value and expand it to show the value of each digit, this process is called the expansion of the numbers.

Given that, we are asked to find the expanded form of 8.478,

The expanded form is :-

8 =  1 place = 8×1

0.4 = 1/10 place = 4×1/10

0.07 = 1/100 place = 7×1/100

0.008 = 1/1000 place = 8×1/1000

Therefore,

8.478 = 8×1+4×1/10×7×1/100+8×1/1000

Hence, the expanded form of the given number is 8×1+4×1/10×7×1/100+8×1/1000 (option c)

Learn more about expanded form, click;

https://brainly.com/question/17837892

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