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2 years ago

Which of the following is equivalent to the expression 3×4×-3/4

Mathematics

1 answer:

aleksklad [387]2 years ago

7 0

Answer:

−9

Step-by-step explanation:

(3)(4) (−3/4)

=12(−3/4)

-9

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The total weight of 6 pieces of butter and a bag of sugar is 3.8lb. If the weight of the bag of sugar is 1.4 lbs what is the wei

Mariana [72]

the total weight of 6 pieces of butter and bag of sugar is 3.8 lb

lets name a piece of butter as x

there are 6 pieces of butter - then x * 6 = 6x

if we write an equation for the total cost

6x + bag of sugar = 3.8 lb

weight of bag of sugar = 1.4 lb

6x + 1.4 lb = 3.8 lb

6x = 3.8 - 1.4

6x = 2.4 lb

x = 2.4/6

x = 0.4 lbs

therefore weight of a piece of butter is 0.4 lbs

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3 years ago

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Х У о 12 1 8 N 4 3 о 4 4

Softa [21]

Answer:

Step-by-step explanation:

Sorry im in 5th grade.

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3 years ago

<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B%20-%208x%20%2B%20y%7D%7B3%7D%20" id="TexFormula1" title=" \frac{ - 8x + y}{3} "

Nata [24]

The Slope is 8 and the y-intercept is (0,0)

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3 years ago

Find the uncertainty in a calculated average speed from the measurements of distance and time. Average speed depends on distance

zzz [600]

Answer:

$\frac{\Delta v}{v}=0.426$

Step-by-step explanation:

you have that the average sped is given by the following formula:

$v(x,t)=\frac{x}{t}$

The uncertainty formula for a division is given by:

$\frac{\Delta v}{v}=\sqrt{(\frac{\Delta x}{x})^2+(\frac{\Delta t}{t})^2}$ (1)

Δv: uncertainty in speed

Δx: uncertainty in the distance = 0.9m

Δt: uncertainty in time = 0.7s

x: distance = 8.1m

t: time = 1.7s

You replace the values of all parameters in the equation (1):

$\frac{\Delta v}{v}=\sqrt{(\frac{0.9}{8.1})^2+(\frac{0.7}{1.7})^2}\\\\\frac{\Delta v}{v}=0.426$

Hence, the relation between the uncertainty in the average velocity is 0.426

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3 years ago

Express 240 as a product of prime factors.

Sholpan [36]

Answer:

240 = 2 x 2 x 2 x 2 x 3 x 5 or 2^4x3x5

Step-by-step explanation:

240

/ \

2 120 (240 = 2 x 120)

/ \

2 60 (120 = 2 x 60)

/ \

2 30 (60 = 30 x 2)

/ \

2 15 (30 = 2 x 15)

/ \

3 5

6 0

4 years ago

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