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Oduvanchick [21]
3 years ago
9

Need help nadding and subtracting functions

Mathematics
1 answer:
SCORPION-xisa [38]3 years ago
3 0

Answer:

2x² + \frac{3}{2} x - 5

Step-by-step explanation:

(f + g)(x) = f(x) + g(x), thus

f(x) + g(x)

= \frac{x}{2} - 2 + 2x² + x - 3 ← collect like terms

= 2x² + \frac{3}{2} x - 5

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The bigger of two numbers is four more
Otrada [13]

Answer:

X=the smaller

y=the larger

The bigger of two numbers is four more than the smaller, then:

y=x+4

one more than twice the smaller is the same as the larger, then

1+2x=y

We have the following system of equations:

y=x+4

y=2x+1

We solve this system by equal values method:

x+4=2x+1

x-2x=1-4

-x=-3

x=3

We find the value of "y"now:

y=x+4

y=3+4

y=7

the values of x and y are:

x=3

y=7

Step-by-step explanation:

7 0
3 years ago
Round to the nearest tenth.
inessss [21]

Answer: Angle A = 53.9 degrees

Step-by-step explanation: We have a right angled triangle with two sides clearly given and one angle to be calculated. If the angle to be calculated is angle A, then having angle A as our reference angle, line AC (10 units) is the adjacent, line CB is the opposite while line AB (17 units) is the hypotenuse. Having been given the adjacent and the hypotenuse, we can now use the trigonometric ratio as follows;

CosA = adjacent/hypotenuse

CosA = 10/17

CosA = 0.5882

By use of the calculator or table of values,

A = 53.97

Approximately to the nearest tenth,

A = 53.9 degrees

6 0
3 years ago
A recipe calls for 3/4 cups of flour . Estevan wants to make 1/3 of the recipe how much flour will he need
romanna [79]
1/3 × 3/4 = 1/4 :) hope this helped!
7 0
3 years ago
Read 2 more answers
If y varies directly as x and y=15 when x =5, what is the value of y when x = 15?​
yulyashka [42]
Y=5 just flip the question sort of
7 0
3 years ago
A coin is tossed 8 times. Which of the following represents the probability of the coin landing on heads all 8 times?
Tcecarenko [31]
The probability would be B because it is 8 cubed.
4 0
3 years ago
Read 2 more answers
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