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Alexandra [31]
3 years ago
11

1/128 = 2^(5x+3) anybody know what x is

Mathematics
1 answer:
Jet001 [13]3 years ago
5 0

Answer:

{2}^{(5x + 3)}  =  \frac{1}{128}  \\  {2}^{(5x + 3)}  =  \frac{1}{ {2}^{7} }  \\  {2}^{(5x + 3)}  =  {2}^{ (- 7)}  \\ 5x + 3 =  - 7 \\ 5x =  - 7 - 3 \\ 5x =  - 10 \\ x =  \frac{ - 10}{5}  \\  \boxed{x =  - 2}

  • <u>x = -</u><u>2</u> is the right answer.
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1800 gym members 3/4 over 25 1/5 over 60 what is the remaining under 25
sergey [27]
1800*3/4=1350 so their are 1350 people over the age of 25.
1800*1/5=360 so their are 360 people over the age of 60.
so if their are already 1710 people(1350+360). 
So 1800-1710=
90 People under 25.
3 0
3 years ago
The length of the radius of a bicycle wheel is 13 in. Which of the following is closest to the distance the wheel will travel in
chubhunter [2.5K]

Answer:

Step-by-step explanation:

r=13in

Perimeter of a circle is 2πr

P=2×22/7×13

P=81.71in.

If it will make 3 revolution then it will have move 3 times it perimeter

3×81.71

245.14in

The distance the wheel will traveled is 245.14in

4 0
3 years ago
Right an equation in slope intercept form for the line with slope 1/5 and Y intercept -4 then graph the line
____ [38]

Answer:

The equation is y=1/5x-4.

Step-by-step explanation:

You substitute the slope and the y-intercept, which is 1/5 and -4, and plug them into the y=mx+b equation.

3 0
3 years ago
What’s the value? Of this question
Reptile [31]

Answer:

138 degrees

Step-by-step explanation:

180degrees -42 degrees = 138degrees

7 0
3 years ago
There are two spinners. The first spinner has three equal sectors labeled 1, 2, and 3. The second spinner has four equal sectors
zhuklara [117]
<h3>Answer: A) 1</h3>

=========================

Explanation:

Let's label each pair of outcomes as an ordered pair (x,y)

x = first spinner outcome

y = second spinner outcome

We have these 12 different possible combos

(1,3),   (1,4),   (1,5),   (1,6)

(2,3),  (2,4),  (2,5),  (2,6)

(3,3),  (3,4),   (3,5),  (3,6)

Focus on the third column where y = 5 for each (x,y) pair. Of this column only (2,5) has x be an even number. The other results in that column have x be odd.

Basically (1,5) is the only possible outcome if we want the first spinner to lan on an even number, and the second spinner to land on 5.

7 0
4 years ago
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