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4 years ago

21) Write the equation for the line through two given points. Passing through (0, -1) and (2, 3)

Mathematics

1 answer:

Viefleur [7K]4 years ago

8 0

Answer:

Point Slope: (y + 1) = 2x

Slope Intercept: y = 2x - 1

Step-by-step explanation:

I'll do it in two forms.

Slope = (3 + 1) / (2 - 0) = 2

Point - Slope: (y + 1) = 2x

Slope Intercept: y = 2x + b

-1 = b

y = 2x - 1

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4:00 am to 8:00 is how many hours

Marina86 [1]

Answer:

10 hours

Step-by-step explanation:

assuming its 8pm if its 8 am 4 hours

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2 years ago

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3.4.2 Discuss: Relating to Functions helppp plzz gimme good exmpl ill give 100 points

goldenfox [79]

Answer:

the function f(x) = x + 1 adds 1 to any value you feed it. You give it a 5, this function will give you a 6: f(5) = 5 + 1 = 6. Functions do have a criterion they have to meet, though. And that is the x value, or the input, cannot be linked to more than one output or answer.

Step-by-step explanation:

we could define a function where the domain X is again the set of people but the codomain is a set of number. For example , let the codomain Y be the set of whole numbers and define the function c so that for any person x , the function output c(x) is the number of children of the person x.

hop u get it

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3 years ago

A 9230-kg truck collides head on with a 1250-kg parked car. The vehicles entangle together and slide a linear distance of 10.6 m

Helen [10]

Answer:

=>By the work energy relation:-

=>W = ∆KE

=>Ff.s = 1/2(M+m)v^2

=>µk x N x s = 1/2(M+m)v^2

=>µk x (M+m) x g x s = 1/2(M+m)v^2

=>v = √[2µkgs]

=>v = √[2 x 0.82 x 9.8 x 10.6]

=>v = 13.05 m/s

By the law of momentum conservation:-

=>Mu = (M+m)v

=>9230u = (9230+1250) x 13.05

=>u = 14.82 m/s

Step-by-step explanation:

3 0

3 years ago

Got any easy question to do. Will give, Branliest. Thanks, :)

Alla [95]

Answer:

10g

Step-by-step explanation:

The apple crumble recipe serves 6 people.

Natalie wants to make it so that it serves 2 people.

6/2 = 3

Which means that the original recipe is 3 times of what Natalie wants.

So if you just divide the original recipe by 3, you can get what Natalie wants.

30g / 3 = 10g

Natalie should use 10g of butter.

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3 years ago

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Gardeners plant 42 white and pink flowers in one flower bed. In another they plant 109, they want 2 times the number of white fl

Irina-Kira [14]

Answer:

There will be 17 white flowers and 25 pink flowers.

Step-by-step explanation:

Given:

Gardeners plant 42 white and pink flowers in one flower bed.

Let number of white flowers be 'w'.

Also Let the number of pink flowers be 'p'.

So we can say that in one flower bed number of white flowers and number of pink flowers is equal to 42.

framing in equation form we get;

$w+p=42 \ \ \ \ equation \ 1$

Also Given:

In another they plant 109, they want 2 times the number of white flowers and 3 times the number of pink flowers.

So From above quote we can say that;

In another flower bed twice the number of white flowers and thrice the number of pink flowers is equal to 109.

framing in equation form we get;

$2w+3p =109 \ \ \ \ equation \ 2$

Now Multiplying equation 1 with 2 we get;

$2(w+p) = 42\times 2\\\\2w+2p =84\ \ \ \ equation \ 3$

Now Subtracting equation 3 form equation 2 we get;

$(2w+3p)-(2w+2p) =109-84\\\\2w+3p-2w-2p=25\\\\p= 25$

Now Substituting the value of 'p' in equation 1 we get;

$w+p =42\\\\w+25 =42\\\\w=42-25\\\\w =17$

Hence There will be 17 white flowers and 25 pink flowers.

7 0

3 years ago