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2 years ago

Hours After Sunset, X

Mathematics

1 answer:

Sloan [31]2 years ago

5 0

Answer:

The answer is slope: -9/2 y-intercept: 75

Step-by-step explanation:

I just took the test :]

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In a video game, each rocket has an 80% chance of hitting a target. Three rockets are now fired at a target. What is the probabi

vitfil [10]

See https://web2.0calc.com/questions/help_69037.

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3 years ago

Choose the algebraic expression that best matches this verbal description: "the sum of 3 and 7 times a number x

aniked [119]

Answer:

Step-by-step explanation:

the sum of 3 and 7 is 3+7. then times x

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3 years ago

Aaron's car used 3- gallons of gas when

monitta

We want to find miles per gallon. Another way of saying miles per gallon is miles/gallon. So we will plug the numbers into this equation:

60 miles/3 gallons = 20 miles/gallon

This is because 60/3=20.

I hope this makes sense.

4 0

3 years ago

Read 2 more answers

Find the value of a and b if root3-1/root3+1+ root3+1/root3-1=a+root3 b

Digiron [165]

Answer:

a=4 and b = 0

Step-by-step explanation:

Given : $\dfrac{\sqrt 3 -1}{\sqrt 3+1}+\dfrac{\sqrt 3+1}{\sqrt 3-1}=a+\sqrt 3 b$

To find, The value of a and b

Solution,

Solving LHS of the given equation,

$\dfrac{(\sqrt 3-1)^2+(\sqrt3+1)^2}{(\sqrt 3+1)(\sqrt 3-1)}=a+\sqrt 3 b$

Since,

$(a-b)^2=a^2+b^2-2ab\\\\(a+b)^2=a^2+b^2+2ab\\\\(a-b)(a+b)=a^2+b^2$

So,

$\dfrac{3+1-2\sqrt 3+3+1+2\sqrt 3}{3-1}=a+\sqrt 3 b\\\\4=a+\sqrt 3 b$

$4+0=a+\sqrt 3 b$

On comparing we get :

a = 4 and b = 0

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3 years ago

Which graph represents a function

FromTheMoon [43]

Answer:

Not really an answer just warning you didn't actually attach a graph

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3 years ago