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mestny [16]
4 years ago
14

Does 4(2x-5) equal 8x-5 or 8x-20? explain

Mathematics
2 answers:
Scorpion4ik [409]4 years ago
8 0
4(2x-5)
8x-20

it is equal to 8x-20 because you simplify it and it turns into that.
HOPE I HELPED!!!


Kobotan [32]4 years ago
7 0
4(2x-5) is equal to 8x-20.

Because, when multiplying an integer with a bracket, you multiply the integer with all the stuff in it.

Like this,

a(bx+c)=\quad a\cdot bx+b\cdot c

So if we expand the expression 4(2x-5)

4(2x-5)=\quad 4\cdot 2x+(4\cdot -5)\quad \Longrightarrow \quad 8x+(-20)\quad \Longrightarrow \quad 8x-20
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) 3) What is the difference between explicit and recursive forms of sequences?​
diamong [38]

Answer:

a recursive formula gives the value of a specific term based on the previous term

Step-by-step explanation:

7 0
2 years ago
Here are the dimensions of the oven tray Jenny bakes the cakes on 600mm by 500mm. Each cake tin is 25 cm in diameter. How many c
storchak [24]
Given:
2 shapes: rectangle (tray) and circle (cake tin)

We need to find the area of each shape.

We need to convert mm to cm. 1mm = 0.1cm
600mm x 0.1cm/1mm = 60cm
500mm x 0.1cm/1mm = 50cm

Area of the Tray = 60cm * 50cm = 3,000cm²

Area of the cake tin = π r²
r = d/2 = 25/2 = 12.5cm

Area of the cake tin = 3.14 * (12.5cm)²
Area of the cake tin = 3.14 * 156.25cm²
Area of the cake tin = 490.625cm²

Area of the tray ÷ Area of the cake tin = number of cake tins that fit
3,000cm² ÷ 490.625cm² = 6.11 or 6 cake tins.

Only 6 cake tins Jenny can fit on the oven tray at one time.
7 0
4 years ago
PLEASE HELP FAST !!!!! PLEASEEEEEEEE The cost of go-karting is dollars for the
elixir [45]

you pay x for ten laps an you pay y for every additional lap you just multiply y by seven an add x

so all an all your answer would be (B) 

3 0
3 years ago
The function g(x) undergoes a vertical stretch of 2, a horizontal shift to the right 3 units, and a vertical shift up 1 to becom
Maksim231197 [3]

Answer:

NONE OF THE OPTIONS GIVEN

Step-by-step explanation:

F(x) = 2|x - 3| + 1 is close, but vertical bars in stead of parentheses completely changes the curve shape

I believe it should be f(x) = 2(x - 3) + 1

if g(x) = x

here are some plots to compare the possibilities. I've shifted the vertical of each to separate the blue and green lines slightly. If they were both true "1" values the lines would be colinear for x>3.

The red line has a slope of 1, stretching by a factor of 3 means the slope is now 3. The absolute value signs from the answer options makes f(x) have a sharp V shape whereas the parentheses creates a single line for all values of x as does g(x) = x.

5 0
3 years ago
Please help me give me the answer
patriot [66]

Answer:

a) Area of a rectangle = length × width

Area = 6138cm²

Width = 62m

length = Area / width

length = 6138/62

length = 99m

b) Perimeter of a rectangle = 2l + 2w

l = length

w = width

perimeter = 338m

length = 98m

338 = 2(98) + 2w

2w = 338 - 196

2w = 142

w = 71m

width = 71m

Hope this helps.

5 0
4 years ago
Read 2 more answers
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