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3 years ago

Which ordered pair in the form (a, b) is a solution of this equation?

Mathematics

2 answers:

Lelechka [254]3 years ago

7 0

Answer:

D. (7,0)

Step-by-step explanation:

Our original equation is 3a-4b=21.

The one we will try first is D. (7, 0)

Since we need to plug it in the form of (a,b) here is the equation now:

3(7)-4(0)=21

Now we solve:

3*7=21

4*0=0

Now we have 21-0=21

21-0 does equal 21.

dedylja [7]3 years ago

6 0

Answer is D ( 7, 0 )

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Step-by-step explanation:

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The sum of three consecutive even numbers is 48. what is the smallest of these numbers?

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4 years ago

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Graph g is a translation of the graph of y= sin x (dashed line).a) write down the equation of g b) write down the coordinates of

labwork [276]

Answer:

a) $G(x)= \sin x + 2$

b) The coordinates of P are

$\displaystyle \left( \frac{3\pi}{2},1\right)$

Step-by-step explanation:

Translation

The dashed line shows the graph of the function

$y = \sin x$

This function has a maximum value of 1, a minimum value of -1, and a center value of 0.

Graph G shows the same function but translated by 2 units up, thus the equation of G is:

$\boxed{G(x)= \sin x + 2}$

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$x = \frac{3\pi}{2}$

The value of G is

$\displaystyle G(\frac{3\pi}{2})= \sin \frac{3\pi}{2} + 2$

Since

$\sin \frac{3\pi}{2}=-1$

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3 years ago

Evaluate the expression for x = 2. -9x2 + 11x − 7 =

harina [27]

All you have to do is replace every x with 2 and then solve:

Make to sure to follow the Order of Operations!!

-9x(2) + 11x - 7 =

(-9 × 2 × 2) + (11 × 2) - 7 =

-36 + 22 - 7 =

-14 - 7 =

-21

The answer is -21.

Hope that helps!

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