Explain how the expanded notation method is used to multiply 82 x 3

Answers

Answer 1

Answer: 80 times 3 plus 2 up put 82 in expanded form and that would be 80,2
2 can not be expanted and then you muliply either 2 and 2 or 2 and 80 which ever you do you have to had what number you didnt use into the problem

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Solve 4(5x+3)=92. justify each step.

Answers

x=4
4(5x+3)=92
First Distribute
4(5x) + 4(3)
20x + 12 = 92
Then subtract 12 from both sides
20x = 80
Then divide 20 from both sides
x = 4

23.15 – [ 115 + ( 12 - 25)]

Answers

Answer:

-78.85

Step-by-step explanation:

Using Order of Operations (PEDMAS):

23.15 – [ 115 + ( 12 - 25)]

= 23.15 – [ 115 + (-13)]

= 23.15 – [ 115 - 13]

= 23.15 - 102

= -78.85

A blimp can be seen flying at an altitude of 5500 feet above a motor speedway during a race. The slanted distance directly to the pagoda at the startdashfinish line is d feet. Express the horizontal distance h as a function of d.

Answers

Answer:

The expression of h as function of x is h = $√((d + 5500) (d - 5500))$

Step-by-step explanation:

Given as :

The distance of blimp (AB) = 5500 feet

The slanted distance to the pagoda (BC) = d feet

The horizontal distance (AC) = h

Let the angle made between slanted distance and horizontal distance be Ф

So , cos Ф = $(AC)/(BC)$ = $(h)/(d)$

And sin Ф = $(AB)/(BC)$ = $(5500)/(d)$

∵, cos²Ф = 1 - sin²Ф

So, $((h)/(d))^(2)$ = $1 - ((5500)/(d))^(2)$

Or, $((h)/(d))^(2)$ = $((d^(2)- 5500^(2))/(d^(2)))$

Or, h² = d² - 5500²

∴ h = $\sqrt{d^(2)- 5500^(2)}$

Or, h = $√((d + 5500) (d - 5500))$

Hence The expression of h as function of x is h = $√((d + 5500) (d - 5500))$ Answer

Find the volume of a square pyramid with a slant height of 5 cm and a base edge of 6 cm.

Answers

The volume of the square pyramid is 25

Does the equation y=x/2
represent a proportional relationship?

Answers

Answer:

Yes, y=x/2 is a proportional relationship.

Step-by-step explanation:

As x increases, y increases too.

Answer:

Yes

Step-by-step explanation:

y=.5x

1)SURFACE AREA
13 ft ▪️ square
What would be the surface area of a 13ft square
SURFACE AREA:

Answers

Answer: multiply by the number of faces

Step-by-step explanation:

If it is a square then you would do 13 x 13 = 169, that is the amount for one face. Then, multiply 169 times how many faces there are to find the surface area.

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2. Which of the following is the equation of a circle with the radius of 1.5 and its center at (-3,2)?A. (x+3)^2+(y-2)^2=1.5 B. (x-3)^2+(y+2)^2=1.5 C. (x+3)^2+(y-2)^2=2.25 D. (x-3)^2+(y+2)^2=2.25