3 years ago

Decide if this statement is true or false.

Mathematics

1 answer:

AVprozaik [17]3 years ago

7 0

Answer:

Step-by-step explanation:

I believe it’s false

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Can someone please help me with this question, If you can thank you so much.

NeTakaya

Answer:

Step-by-step explanation:

A isn't right because that's a fraction.

B isn't right because it has 24.

C isn't right because it has 6.

D is right because every 5 you add -1 to it.

Hope this helps <3

6 0

3 years ago

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6. Using the discriminant, determine the value of k that will give 1 solution (i.e. discriminant equals zero) y = kx²-4x + 4

Gwar [14]

Answer:

k = 1

Step-by-step explanation:

Discriminant

$b^2-4ac\quad\textsf{when }\:ax^2+bx+c=0$

$\textsf{when }\:b^2-4ac > 0 \implies \textsf{two real roots}$

$\textsf{when }\:b^2-4ac=0 \implies \textsf{one real root}$

$\textsf{when }\:b^2-4ac < 0 \implies \textsf{no real roots}$

As we need to determine the value of k that will give one solution, set the discriminant to zero.

Given equation:

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

Therefore:

a = k
b = -4
c = 4

Substitute these values into the discriminant and solve for k:

$\begin{aligned}b^2-4ac & = 0\\\implies (-4)^2-4(k)(4) & = 0\\16-16k & = 0\\16k & = 16\\\implies k & = 1\end{aligned}$

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2 years ago

Simplify. 2x^2−3xy+4y^2

Crazy boy [7]

It’s simplified as far as it can be. it’s not factorable either

8 0

3 years ago

Triangle ABC is translated left 1 units, and dilated by a scale factor of 2.

valina [46]

Answer:

Step-by-step explanation:

( x , y ) ----> ( x - 1 , y ) ------> ( 2(x-1) , 2y ) = ( 2x - 2 , 2y )

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3 years ago

Suppose you invest $67 a month in an annuity that earns a 3.1% APR,

arlik [135]

Answer: A

Step-by-step explanation:

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3 years ago

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