1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
SIZIF [17.4K]
3 years ago
8

What is the domain of f(x) = 5^x - 7?

Mathematics
1 answer:
leonid [27]3 years ago
5 0

Answer:

D

Step-by-step explanation:

I think the intervals can pretty much be infinite.

You might be interested in
Louisa starts training for cross country. She records how far she can run without stopping each week.
PIT_PIT [208]

Answer:

I need more info!

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Find the slope of the line that contains (2, 6) and (5, 7).
MrRissso [65]

Answer:

1/3

Step-by-step explanation:

The slope is equivalent to:

(y₂-y₁)/(x₂-x₁)

Now we plug in the coordinates into the equation:

(7-6)/(5-2)=1/3

​

6 0
3 years ago
-3.8x = -7.4<br> Is x=2 is a solution
Lana71 [14]
No

The anser is x= -11,2
6 0
3 years ago
Can someone help me solve (x+18)^(1/2)+2=x
____ [38]
Lets solve your equation step by step:
(x+18)^1/2+2=x
step 1:Add -2 to both sides:
(x+18)^1/2+2-2=x+-2
(x+18^)1/2=x-2
step 2:solve exponent
(x+18)^1/2=x-2
((x+18)^1/2)^2=(x-2)^2
x+18=x^2-4x+4
x+18-(x^2-4x+4)=x^2-4x+4-(x^2-4x+4) (subtract x^2-4x+4 from both sides)
-x^2+5x+14=0
(-x-2)(x-7)=0(factor left side of equation)
-x-2=0 or x-7=0 (set factors equal to zero)
x=-2 or x=7

check answers:(plug them in to make sure they work )
x=-2(doesn't work in original equation)
x=7(works in original equation)
6 0
3 years ago
Simplify the expression (7x+1/2)+(6x-9 1/2)
monitta
To make this easier to read, I'll be substituting 1/2 for .5; they mean the same thing, but it's less confusing to type it in its decimal form.
7x + .5 + 6x - 9.5
Combine like terms (x's can be added together, and so can reg. numbers)
(7x + 6x) + (.5 - 9.5)
13x - 9
3 0
3 years ago
Other questions:
  • Simplify square root of 2 multiplied by the cube root of 2.
    7·1 answer
  • Keisha is reading a 350 page book at a rate of 27 pages per day. Use a point-slope equation to determine how many pages she will
    12·2 answers
  • Evaluate ab for a = 2 3/4 and b = 4/5
    14·1 answer
  • How do I solve this?
    8·1 answer
  • A 63-square-foot roll of plastic wrap costs $1.89. A 9-square-yard roll costs $2.43. Which roll is a better deal?
    13·1 answer
  • There are 25 children i the lunch queue, including nik.
    7·2 answers
  • The image of a parabolic lens is projected onto a graph. The image crosses the x-axis at –2 and 3. The point (–1, 2) is also on
    12·1 answer
  • 10
    10·1 answer
  • Please help on my last question asap
    7·1 answer
  • Hhhheeeeeeeeelllllllllllllllppppppppppppp
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!