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3 years ago

What is the rationalizing factor of a+√b?

Mathematics

1 answer:

Alina [70]3 years ago

3 0

I hope this helps you

a- square root of b

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Due in 10 minutes please help !! ASAP Erin buys 2 packs of potatoes costing £2 each, 3 packs of carrots for £3 per pack, and 3 t

lions [1.4K]

2(2) + 3(3) =

4 + 9 = 13

I don't know what 90p means but basically, u have to multiply that by 3 and add it to our current total which is 13.

Then, u substract the total cost from the 20 and you should get the change.

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3 years ago

Sketch the graph of y=x^2-4x+3

NISA [10]

Answer:

see attached graph

Step-by-step explanation:

Given equation: $y=x^2-4x+3$

Standard form of a quadratic equation: $y=ax^2+bx+c$

where $c$ is the y-intercept

If $a > 0$ then the parabola opens upwards.

If $a < 0$ then the parabola opens downwards.

Therefore, the y-intercept of the graph is (0, 3)

To find the x-intercepts, factor the equation:

$y=x^2-4x+3$

$\implies y=x^2-x-3x+3$

$\implies y=x(x-1)-3(x-1)$

$\implies y=(x-3)(x-1)$

Therefore, the x-intercepts of the graph are (3, 0) and (1, 0)

To determine the vertex, differentiate the equation:

$\implies \dfrac{dy}{dx}=2x-4$

Set to zero and solve for x:

$2x-4=0 \implies x=2$

Substitute $x=2$ into the original equation and solve for y:

$\implies y=(2)^2-4(2)+3=-1$

Therefore, the vertex (or turning point) is at (2, -1)

8 0

3 years ago

Write a whole number and a fraction greater than 1 to name the part filled. think: 1container =1

Elan Coil [88]

Can help me plzz f) i) dont need

5 0

3 years ago

How do you get the variable p alone in the equation 2p-12?

svp [43]

Divide both sides by 2 Since 2 Is multiplying P.
2P-12=p
/ /
2 2
P=6

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4 years ago

Suppose we call a number funny if it is the product of three prime factors, of which exactly two are the same. (For example: 12=

Schach [20]

Step-by-step explanation:

31 37 41 43 47 51 53 57 59

are the prime numbers between 30 and 60

6 0

3 years ago