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Aleksandr-060686 [28]
2 years ago
9

If f(x) = 7x²-3 and g(x) = 5x, which expression is equivalent to [go f](2)?

Mathematics
1 answer:
Ulleksa [173]2 years ago
3 0

An expression is defined as a set of numbers, variables, and mathematical operations. The correct expression is B.

<h3>What is an Expression?</h3>

In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.

The expression that is equivalent to (f·g)(2) is,

f(x) = 7x²-3

g(x) = 5x

(g·f)(x) = g(f(x)) = 5(7x²-3)

                       = 5(7·2² - 3)

Hence, the correct expression is B.

Learn more about Expression:

brainly.com/question/13947055

#SPJ1

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a wheel has a diameter of 15cm. The wheel travels 50 metres. How many revolutions does the wheel complete?
TEA [102]

Answer:

106

Step-by-step explanation:

The diameter of the wheel is 15 cm or 0.15 m.

The circumference of the wheel is 0.15π m ≈ 0.47 m.

So the wheel moves 0.47 m with each revolution.

The wheel travels 50 m, so the number of revolutions is:

(50 m) / (0.47 m/rev) ≈ 106 revolutions.

8 0
3 years ago
Find the area of the composite figure.
MArishka [77]

2 × 6 = 12

12 ÷ 2 = 6

2 × 14 = 28

10 × 20 = 200

6 + 28 + 200 = 234

7 0
3 years ago
GIVING BRANLIEST
Alex_Xolod [135]

Answer:

(4,4)

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Help please it would help my grade alot
Alexxandr [17]

Answer:

It cooled 58.4 degrees

Step-by-step explanation:

T(t) = 68 + 144e ^(-.052t)

We want to find the value when t= 10

T(10) = 68 + 144e ^(-.052*10)

        = 68 +85.611

 T(10)         =153.611

We also need to know

T(0)= 68 + 144e ^(-.052*0)

       =68+144

        =212

We want to know how much it cools

That would be the temperature at  time 0 minus the temperature at  time 10


T(0) - T (10)

212-153.611

58.389

To the nearest tenth

58.4 degrees

3 0
3 years ago
(40 points + Brainliest for right answer)
MAXImum [283]
Y - y1 = m(x - x1)
so equation
y + 9 = -2(x - 10)

answer is A
y + 9 = -2(x - 10)
3 0
3 years ago
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