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umka2103 [35]
3 years ago
15

If f(x) =3x^2 -2 and g(x) = 2x+ 4 , find (f - g) (x).

Mathematics
1 answer:
melisa1 [442]3 years ago
5 0

Answer: A

Step-by-step explanation:

(f-g)(x)=f(x)-g(x)=(3x^{2}-2)-(2x+4)=3x^{2}-2-2x-4=\boxed{3x^{2}-2x-6}

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Rob is saving to buy a new MP3 player. For every $14 he earns babysitting, he saves $7. On Saturday, Rob
oee [108]

Answer:

$42

Step-by-step explanation:

7/14=1/2 so he saved 1/2 of 84

7 0
3 years ago
Yeah I’m not good at this
levacccp [35]

For the given triangle, x = 5.1 cm and y = 6.1 cm.

Step-by-step explanation:  

Step 1:  

In the given triangle, the angle is 50°. It is given that the opposite side has a length of y cm and the adjacent side has a length of y cm.   The hypotenuse of the triangle measures 8 cm.

To determine the length of the opposite side of the triangle, we use the sin of the given angle.  

To determine the length of the adjacent side of the triangle, we use the cos of the given angle.  

sin \theta = \frac{oppositeside}{hypotenuse} , cos \theta = \frac{adjacentside}{hypotenuse}.

Step 2:  

In the given triangle,  

The length of the opposite side = y cm,  

The length of the adjacent side = x cm,  

The length of the hypotenuse = 8 cm,  

The angle of the triangle = 50°.

sin \theta = \frac{oppositeside}{hypotenuse} , sin 50 = \frac{y}{8}.

y = 0.7660 (8) = 6.128.

cos \theta = \frac{adjacentside}{hypotenuse} , cos 50 = \frac{x}{8}.

x = 0.6427 (8) = 5.1416.

So x = 5.1416 cm and y = 6.128 cm. Rounding these off to one decimal place, we get x = 5.1 cm and y = 6.1 cm.

8 0
4 years ago
Which of the following is an example of combination?
CaHeK987 [17]
I think iys the first one :)
5 0
3 years ago
Jhggggggggggggggggggggggggggggggggggggggggg bjnb m <br>k
hoa [83]

Answer:

?

Step-by-step explanation:

4 0
3 years ago
Which expressions are equivalent to StartFraction 1 Over 36 EndFraction? Check all that apply. 3 Superscript negative 6 6 Supers
Elenna [48]

Answer:

6^-2

6^3/6^5

6^-9 *6^ 7

Step-by-step explanation:

We want the fractions equal to 1/36

We know that a^-b = 1/a^b

We also know that a^b / a^c = a^(b-c)

We also know that a^b * a^c = a^(b+c)

3^ -6 = 1/3^6 = 1/729

6^-2 = 1/6^2 = 1/36

6^3/6^5 = 6^(3-5) = 6^-2 = 1/6^2 = 1/36

6^2 / 6^-1 = 6^(2- -1) = 6^3 = 216

6*6^-2 = 6^(1-2) = 6^-1 = 1/6

6^-9 *6^ 7 = 6^(-9+7) = 6^ -2 = 1/6^2 = 1/36

5 0
3 years ago
Read 2 more answers
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