4 years ago

The solution of the equation 2^x-7=9 is x the answer is 5 .

Mathematics

2 answers:

Tom [10]4 years ago

5 0

Answer:

x=4

Step-by-step explanation:

2^x-7=9

Add 7 to each side

2^x-7+7=9+7

2^x = 16

Change 16 to a power of 2 16 = 2^4

2^x = 2^4

The bases are the same, so the powers are the same

x=4

Mila [183]4 years ago

5 0

Answer:

Step-by-step explanation:

hello :

2^x-7=9

add 7 : 2^x =16

2^x = 2^4

x=4

You might be interested in

Which expression is equivalent to 5x + 5x – x + 8y – 4y?

likoan [24]

5x + 5x - x + 8y - 4y =
(5x + 5x - <span>x) + (8y - 4y) =
(9x) + (4y) =
9x + 4y

</span> ${\boxed{\sf\ Answer:\ 9x+4y}$ <span>
</span>

6 0

4 years ago

−5 + (−5r) + 10 Not that hard but I keep getting stuck

djverab [1.8K]

5-5r

-5 and 10 have like terms, so you can add them
they make positive 5
(-5r) is just -5r, and you can't add it to a number without a variable
so the answer is 5-5r

5 0

3 years ago

Read 2 more answers

How to find AMN and ANM

zysi [14]

The triangle ANM is similar to triangle ACB. That means they share the same angles. Both AMN and ANM are 75.

3 0

4 years ago

what is the slope of the line that passes through the points (-3,-3) and (-18,-23)? write your answer in simplest from.

4vir4ik [10]

Answer:

4/3. That is the answer in simplest form

4 0

3 years ago

What is the slope of a line that is perpendicular to 6x + 3y = –9?

k0ka [10]

6x + 3y = -9
3y = -6x - 9
y = -2x - 4.5

slope (m1) of this line is -2

slope of the perpendicular line,
m2 = - (1/m1)
m2 = - (1 / -2)
m2 = 1/2

4 0

3 years ago

Read 2 more answers