3 years ago

What's a quantity represented by a 3x - 4 is subtracted for the quantity 5x - 7 what is the result

Mathematics

1 answer:

DanielleElmas [232]3 years ago

5 0

(5x - 7) - (3x - 4) = 2x + 3

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A die is rolled twice. What is the probability of getting either a multiple of 2 on the first roll or a total of 8 for both roll

Nuetrik [128]

Answer:

Step-by-step explanation:

let A=favorable outcomes for getting multiple of 2

they are 21,22,23,24,25,26,

41,42,43,44,45,46,

61,62,63,64,65,66

P(A)=18/36

let B=total of 8

favorable outcomes are 26,35,44,53,62

P(B)=5/36

P(A∩B)=3/36

P(A OR B)=P(A∪B)=P(A)+P(B)-P(A∩B)=18/36+5/36-3/36=20/36=5/9

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3 years ago

. Anne is pushing a wheelbarrow filled with mulch to place in her garden. She is pushing the wheelbarrow with a force of 70 N at

Kruka [31]

<u>Answer:</u>

When Anne pushes the wheelbarrow 25 meters the work done is 1120 joules

<u>Solution:</u>

We know $\text { Work }(\mathrm{W})=\text { Force }(\mathrm{F})\times\text { Distance (D) }$

Anne is pushing the wheelbarrow with a force of 70 N at an angle of $50^{\circ}$ with the horizontal

So the force of Anne will be $F=70 \cos 50^{\circ}=(70 \times 0.64)=44.8 \mathrm{N}$

She pushes the wheelbarrow 25 meter, So D = 25 meters

So, the $work,F\times D=(44.8 \times 25)=1120 \text { Joules }$

Anne has done total 1120 joules work.

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3 years ago

X/4 +2 helppppp plzzz

inysia [295]

Answer:

Step-by-step explanation:

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3 years ago

If a^ 1/n = n What is an equivalent form of 7? Show steps plz!

Scrat [10]

Answer:

7⁷

Step-by-step explanation:

a^(1/7) = 7

a = 7⁷

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3 years ago