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2 years ago

If f(x)=4x+5 , what is f(-3) and f(3) A 4 and 5 B -7 and 17 C -3 and 3 D -17 and 7

Mathematics

2 answers:

nikdorinn [45]2 years ago

8 0

Answer:
B. -7 and 17

Explanation:
Plug in the given number for x.
f(3)=4(3)+5
=12+5
=17

f(-3)=4(-3)+5
=-12+5
= -7

sashaice [31]2 years ago

6 0

It would be B: -7 and 17

because 4(-3)+5= -7 and 4(3)+5=17

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Carlos mixed 4/15 L of chocolate syrup 1/2 L of milk

mojhsa [17]

Answer:

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Step-by-step explanation:

4/15=8/30

1/2=15/30

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1 year ago

A is directly proportional to b. When a is 6, b is 72. Find b when a is 8. 3

adelina 88 [10]

Answer:

a) "K" is proportional Constant K= 0.0833

b) The value of b = 99.639

Step-by-step explanation:

Explanation :-

Given 'a' is directly proportional to 'b'

a ∝ b

a = k b ....(i)

where "K" is proportional Constant

Case(i):-

when a =6 and b=72

a = k b

⇒ 6 = k (72)

⇒ $K = \frac{6}{72} = \frac{1}{12} = 0.0833$

Case(ii):-

Given a = 8.3

a = k b

⇒ 8.3 = 0.0833 ×b

⇒ $b = \frac{8.3}{0.0833} = 99.639$

Final answer:-

a)"K" is proportional Constant K= 0.0833

b) The value of b = 99.639

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2 years ago

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bearhunter [10]

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Step-by-step explanation:

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2 years ago

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If f(x)=4x^2+1 and g(x) =x^2-5 find (f-g)(x)

docker41 [41]

Answer:

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

Step-by-step explanation:

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3 years ago

What is the slope of the line that passes through the points (8,8) and (20, -2)?

Sindrei [870]

Answer:

-5/6

Step-by-step explanation:

Use slope intercept form: $\frac{y_2-y_1}{x_2-x_1}$

$\frac{-2-8}{20-8}$ = $\frac{-10}{12}$ = -5/6

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2 years ago