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NemiM [27]
4 years ago
14

An equation that defines y as a function of x is given. Solve for y in terms of x, and replace y with the function notation f(x)

.
x - 2y = 14


A.f(x) = x - 14

B.f(x) = - x + 7

C.f(x) = x - 7

D.f(x) = -x + 7
Mathematics
1 answer:
34kurt4 years ago
3 0

Answer:C

Step-by-step explanation:

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I don't understand please help​
GREYUIT [131]

Step-by-step explanation:

Objective: Solving Piecewise Functions

Analyze the info in the graph.

We know that if x=1, the graph will coincide at 5.

If x is greater than 1, the answer will be x squared it answer so any positve interger greater than 1 the answer is that squared.

If x is less than 1, the answer will be double that x.

Let check the answer choices.

A is wrong because x is less than 1 so the answer should be 2(-2)=-4 not 4.

C is Wrong, since 5 is greater than 1, it must be 25 so 5^2=25

D and B are both right, 2 is greater than 1 so 2 squared =4 and Whenever x=1, it will equal 5.

3 0
3 years ago
Rewrite the expression as an algebraic expression in x.<br> tan(sin−1(x))
solmaris [256]
Let tan^{-1} x=\alpha
Then it can be shown by using a right-angled triangle and the rule of Pythagoras that \alpha= tan^{-1} \frac{x}{ \sqrt{1-x^{2}} }
Therefore
tan(sin ^{-1} (x))=\frac{x}{ \sqrt{1-x^{2}} }
7 0
4 years ago
En una ciudad se registró una temperatura de 12°c bajo cero a las 3:00 am si a las 7:00am del mismo dia la temperatura era tres
hjlf

Answer:

24°c

Step-by-step explanation:

Cuando se dice que la temperatura esta "mayor" significaria que esta aumentando y entorno subiendo a ser mas caliente. Siendo este el caso, si la temperatura a las 3:00 estaba a 12c bajo cero entonces a las 7:00 estaria a 24c. Esto es por que un aumento de tres vecesseria un aumento de 36 grados (12*3). 12c grados bajo cero seria un numero negativo y si sumamos estos numeros nos daria 24c grados.

-12 + 36 = 24

7 0
3 years ago
Which of the following is the best first step in solving the equation below?
likoan [24]

im assuming you wrote 4logsx instead of 4log5x here

Answer is a) log5x = 7

Just diving both sides by 4 to isolate the log

4 0
3 years ago
Louie has 20 more than half as many baseball cards as Gerardo does. Together they have at least 350 cards.
MrRa [10]
In the question it is given that Louie has 20 more than half as many baseball cards as Gerardo does.So,
Let us assume that the number of baseball cards Gerardo has = X
Number of baseball cards that Louie has = 20 + X/2
Also the total number of baseball cards Louie and Gerardo has together is 350.
Then,
X + X/2 + 20 = 350
X + X/2 = 350 - 20
X + X/2 = 330
3X/2 = 330
3X = 330 * 2
3X = 660
X = 660/3
   = 220
Number of baseball cards Gerardo has = 220
Number of cards Louie has = 130.

5 0
4 years ago
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