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dusya [7]
3 years ago
15

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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guapka [62]

Answer:

55

Step-by-step explanation:

there are two ways to answer : since angle 1 and the 125 degree angle are a linear pair, you can do 180-125 = 55, or, since the three angles in the triangle always add up to 180, you can do 180-37-88 = 55.

3 0
3 years ago
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The sum of three consecutive even numbers is 48. what is the smallest of these numbers?
wlad13 [49]

Answer:

The smallest number is  14

Step-by-step explanation:

5 0
4 years ago
Gina has 21 more barrettes than Holly. The equation g = 21 + h, where g represents the number of barrettes Gina has, and h repre
kompoz [17]

Answer:

21

Step-by-step explanation:

42-21=21

8 0
3 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:

<em>a)  </em>G(x)= \sin x + 2<em />

<em>b) The coordinates of P are</em>

<em />\displaystyle \left( \frac{3\pi}{2},1\right)

Step-by-step explanation:

<u>Translation</u>

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.

a)

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

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

b) The coordinates of P correspond to the value of

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

\displaystyle G(\frac{3\pi}{2})= -1+ 2=1

The coordinates of P are

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

8 0
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:

<em>Make to sure to follow the Order of Operations!!</em>

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

(-9 × 2 × 2) + (11 × 2) - 7 =

-36 + 22 - 7 =

-14 - 7 =

-21

The answer is -21.

Hope that helps!


4 0
3 years ago
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