2 years ago

Without subtracting 8.5 - 4.64 determine what digit will be in the hundredths place

1 answer:

3 0

It will be a 6 because the 8.5 is actually 8.50. So when subtracting mentally 8.50 - 4.64 you know 0 - 4 cannot be subtracted. Barrow a 1 from the 5 and now it'll be like 10 - 4. Which 10 - 4 = 6

8.50
- 4.64
= 3.86

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Deffense [45]

Hi I figured it out for you all you need to do is plug in the X factor .number 3 is y=-1

5 0

2 years ago

Four balls of wool will make 8 knitted caps. How many balls of wool will Malcolm need if he wants to make 6 caps

Maksim231197 [3]

4x2=8

3x2=6

so answer is 3

8 0

2 years ago

Factor 2x^4 + 2x^3 - x^2 - x

MAVERICK [17]

2x^3(x+1)-x(x+1)
(2x^3-x)(x+1)
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2 years ago

Write the equation of a line in standard form that passes through (-2, 5) and is perpendicular to

sdas [7]

Answer:

Step-by-step explanation:

x - 2y = 8

Write this in y = mx +b form

- 2y = -x + 8

Divide the equation by (-2)

$\dfrac{-2y}{-2}=\dfrac{-x}{-2}+\dfrac{8}{-2}\\\\\\y =\dfrac{1}{2}x-4$

Slope = 1/2

The slope of the perpendicular line = -1/m

$=\dfrac{-1}{\dfrac{1}{2}}=1*\dfrac{-2}{1} = -2$

m = -2 , ( -2 , 5)

Equation: y = mx +b

Plug in m = -2 ,x = -2 and y =5

5 = (-2)*(-2) + b

5 = 4 + b

5 - 4 = b

b = 1

Equation of the line:

y = mx +b

y = -2x + 1

7 0

2 years ago

a spinner has 3 equal sections labeled red, purple ,and yellow how many times would you expect to land on red if you doin it 24

torisob [31]

Answer:

8 times

Step-by-step explanation:

we have a 1/3 chance per spin to land on red

so we would expect it to land 33.3% of the time

1/3*24=8

another easy way is to divide by 3

24/3=8

6 0

2 years ago