Will give brainliest!!Can someone please explain how i do problems like these my teacher makes no sense

Select the correct answer.
Which expression is equivalent to the given expression?
(12g^2h^7)(3g–^2h-4)

A. 36gh^3

B. 36h^3

C. 36/g^4h^28

D. 38/h^3
Will give brainliest!! Can someone please explain how i do - 1

Answers

Answer 1
Answer:

Answer:

C

Step-by-step explanation:

Answer 2
Answer:

Answer:

its C

Step-by-step explanation:


Related Questions

How many milliliters of a 15% saline solution and how many milliliters of a 40% saline solution must be mixed to produce 10 milliliters of a 30% saline solution?Volume of 15% solution= ____Volume of 40% solution = ____
A square is shown below. Which expression can be used to find the area, in square units, of the shaded triangle in the square? A square with a side length of 4 units is shown. A diagonal is drawn with one section shaded inside the figure. (5 points) fraction 1 over 2 ⋅ 4 ⋅ 4 fraction 1 over 4 ⋅ 4 ⋅ 4 fraction 1 over 2 ⋅ 2 ⋅ 2 fraction 1 over 4 ⋅ 2 ⋅ 230 points :)
Two friends, Bob and Ben, each buy one lottery ticket. Each ticket contains six numbers from a total of one hundred numbers (0–99). Bob chooses the numbers 1, 2, 3, 4, 5, 6, and Ben chooses the numbers 39, 45, 66, 72, 74, 89. Who has a higher probability of winning?
On a trip, the fare was 50¢ for each adult and 25¢ for each child. If 30 passengers paid $12.25, how many adults and children went? Which of the following equations could not be used to solve the problem? A. 50x + 25(30 - x) = 1225 B. 50(30 - x) + 25x = 1225 C. 25x + 50x = 30(1225)
How do you simply 2x+8=-6

Yancey collects plastic banks .He has three different banks: a pig, a cow, and a horse. How many ways can Yancey arrange his banks on a shelf.

Answers


let h = horse, let c = cow, let p = pig

so,

hcp

hpc

cph

chp

phc

pch

so, that is 6 different ways she can arrange it.  

pig, cow, horse

pig, horse, cow

horse, pig, cow

horse, cow, pig

cow, pig, horse

cow, horse, pig

What is the total surface area of a right circular cylinder with base radius 7cm and height 12cm.

Answers

Answer:

Using 3.14  for pi

835.24 cm^2

Using the pi button for pi

835.6636459 cm^2

Step-by-step explanation:

The surface area of a cylinder is given by

SA = 2 pi r^2 + 2 pi r h

     = 2 * pi ( 7)^2 + 2 pi ( 7) * 12

    = 98 pi + 168 pi

    =266 pi

Using 3.14  for pi

835.24 cm^2

Using the pi button for pi

835.6636459 cm^2

Answer:

226\pi or 835.664

Step-by-step explanation:

Surface area of a right cylinder= 2πrh+2πr^2

=2π7✖️12+2π49

=226π

Hope this helped, and have a nice rest of your day!

ΔABC is reflected across line L to form Δ ALBLCL, and intersects line L at point D. Which equation is not necessarily true?

Answers

option 2
ALD=BLD equation is not necessarily true, all other remaining equations satisfy laws of reflection.

Answer:

A_LD= B_LD is false statement.

B is correct

Step-by-step explanation:

\triangle ABC is reflected across line L to form \triangle A_LB_LC_L.

If we join A and A_L and intersect line L at point D.

Reflection: A transformation of a geometric figure such that creating a mirror image across the line. The line of reflection is called axis of reflection.

As we know mirror image figure has same property their side measure and angle measure equal.

\triangle ABC \text{ is congruent to }\triangle A_LB_LC_L.

Distance of each vertex of figure from axis of reflection line is equal to their corresponding vertex.

Therefore, True statements are:-

AD=A_LD

\angle ACB=\angle A_LC_LB_L

\angle BAC=\angle B_LA_LC_L

A_LD\neq B_LD

Please find the attached figure for reflection and coordinates.

Hence, A_LD= B_LD is false statement.

X^2+10x-88=8
where is the mistake and what should be done differently?​

Answers

Step-by-step explanation:

a) There's a mistake at the third step from the beginning.

b) Instead of adding 25 , Josh added 100. While solving an equation using "Completing Squares Method" , we need to write the L.H.S. in the form of  a^(2) + 2ab + b^(2)  or  a^(2) - 2ab + b^(2) , so that in the next step it can be converted into (a + b)^(2) or (a - b)^(2).

c)x^(2) + 10x - 88 = 8

Taking -88 to R.H.S. , it's sign changes and becomes +88.

=> x^2 + 10x = 88 + 8 = 96

Using "Completing Squares Method" , L.H.S.  can be written as :-

(x)^(2) + 2 * x * 5 + (5)^(2) = 96 + (5)^(2)

=> (x + 5)^(2) = 96 + 25 = 121

=> x + 5 = √(121) = -11 \: or +11

=> x = +6 \: or -16

Solve the proportion.

s+1/4 = 4/8
s=

Answers

Answer:

8 = 16

Step-by-step explanation:

1/4  =  4 /8

 

Cross multiply:

1 * 8 = 4 * 4

Simplifying

1 * 8 = 4 * 4

Multiply 1 * 8

8 = 4 * 4

Multiply 4 * 4

8 = 16

Solving

8 = 16

Simplify a - {5b - [a - (3b - 2c) + c - (a - 2b - c)]}.-a - 6b + 4c
a - 6b + 4c
a - 10b + 4c
-a + 10b + 4c

Answers

Asking the Math Gods...


= a-6b+4c


Answer:

a-6b+4c

Step-by-step explanation:

a-{5b-[a-(3b-2c)+c-(a-2b-c)]}

a-{5b-[a-1(3b-2c)+c-1(a-2b-c)]}

a-{5b-[a+(-3b+2c)+c+(-a+2b+c)]}

a-{5b-[a-3b+2c+c-a+2b+c]}

a-{5b-[-b+4c]}

a-{5b+[b-4c]}

a-{5b+b-4c}

a-{6b-4c}

a+{-6b+4c}

a-6b+4c