3 years ago

I need your help guys! :)

Mathematics

1 answer:

nadya68 [22]3 years ago

7 0

Emmmm derecha izquierda 56 a la cuadrada de 4 triangulada sobre17 raíz 12

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Does someone mind helping me with this question? thank you!

Verdich [7]

Answer:

A= B= C= D= E= F=

Step-by-step explanation:

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1 year ago

What is the reading in kwhr of the electric meter shown in the exam figure below?

just olya [345]

We can't tell, because you won't let us SEE
the electric meter shown in the exam figure.

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3 years ago

Find f(-5) if f(x) = |x+1|

lions [1.4K]

Answer:

Step-by-step explanation:

just put -5 to x

|-4|=4

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2 years ago

What are the x and y intercepts for this equation? 2x - 3y = 6

masya89 [10]

Answer:

So standard form is 2x-3y=6

Slope intercept form is y=2/3x-2

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3 years ago

The value of x in the equation log(x-1)9=2 is

mel-nik [20]

$\log_{(x-1)} 9=2$

the domain:
$x-1 >0 \ \land \ x-1 \not=1 \\
x>1 \ \land \ x \not= 2 \\
x \in (1; 2) \cup (2;+\infty)$

the equation:
$\log_{(x-1)}9=2 \\
(x-1)^2=9 \\
\sqrt{(x-1)^2}=\sqrt{9} \\
|x-1|=3 \\
x-1=3 \ \lor \ x-1=-3 \\
x=4 \ \lor \ x=-2$

4 is in the domain
-2 is not in the domain

The answer:
$x=4$

***
Also, the answer in 13 is {8}. -3 is not in the domain. Replace x with -3 and you'll see:
$x=\sqrt{5x+24} \\
-3=\sqrt{5 \times (-3)+24} \\
-3=\sqrt{-15+24} \\
-3=\sqrt{9} \\
-3=3$
It's not true so -3 isn't a solution to this equation.

4 0

3 years ago

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