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
grin007 [14]
1 year ago
9

If 10^2y = 25, then 10^-y equals:

Mathematics
2 answers:
MrRa [10]1 year ago
8 0
<h3><em><u>solution</u></em><em><u>:</u></em></h3>

<em><u>{10}^{2y}  = 25</u></em>

<em><u>{(10)}^{y2}  =  {5}^{2}</u></em>

<em><u>{10}^{y}  = 5</u></em>

<em><u>\frac{1}{10 {y} } =  \frac{1}{5}</u></em>

<em><u>{10}^{ - y}  =  \frac{1}{5}</u></em>

<em><u>answer</u></em><em><u>=</u></em><em><u> </u></em><em><u>option</u></em><em><u> </u></em><em><u>e</u></em><em><u>.</u></em>

Nady [450]1 year ago
8 0
Answer
(e) 1/5

Explanation
5^2=5*5=25
You might be interested in
Estimate using a rate per 100 of 74% of 315. 89% of 195
LiRa [457]
<span><span>1.       </span>Given numbers:
74 % of 315
89% of 195

now, let’s solve the first given numbers:
=> 74% of 315
=> 315 is the 100%
Let’s convert 74% into decimals
=> 74% = .74
=> 315 * .74 = 233.1, the value of 74% of 315
Let’s solve the second given:
=> 89% of 195
where 195 is the 100%
=> 89% = .89
=> 195 * .89
=> 173.55, the value of 89% of 195</span>



3 0
3 years ago
Use the quadratic formula to find both solutions to the quadratic equation given below x^2+6x=27
docker41 [41]

Answer:

x=3 or x=−9

Step-by-step explanation:

Step 1: Subtract 27 from both sides.

x2+6x−27=27−27

x2+6x−27=0

Step 2: Factor left side of equation.

(x−3)(x+9)=0

Step 3: Set factors equal to 0.

x−3=0 or x+9=0

x=3 or x=−9

Answer:

x=3 or x=−9

7 0
2 years ago
Read 2 more answers
What is the standard form of the equation y=3/4x-6
umka21 [38]
Answer :

y=3/4x-6

explanation:

it is already in standard form.
6 0
2 years ago
Each floor of a hotel has r rooms. On 8 floors, there are a total of 256 rooms. Write an equation to represent this situation.
antoniya [11.8K]

Answer:

32 rooms

Step-by-step explanation:

You have to divide

8 0
3 years ago
Read 2 more answers
The length of the hypotenuse of a 30 - 60 - 90 triangle is 16 cm.
xeze [42]

Answer:

8, 8x square root of 3

Step-by-step explanation:

16=2x

x=8

4 0
3 years ago
Other questions:
  • HELP!!!!! This is due to DAy]
    8·2 answers
  • William says to Gracie, "If you give me $7.50,we will have and equal amount of money. "Grace responds, "That may be true, but if
    11·1 answer
  • The next step in the solution for which equation could use the distributive property?
    9·1 answer
  • 1
    8·1 answer
  • #1) PLEASE HELP WITH QUESTION, MARKING BRAINLIEST.
    12·1 answer
  • You want new picture frames that cost $12 each. Shipping is $8 per order. If
    14·2 answers
  • basically i need help trying to learn .. um ... i ... so basically what i’m asking is how.. why.... uh .. sorry i .. so overall
    11·1 answer
  • Rob is saving to buy a new MP3 player. For every $12 he earns babysitting, he saves $9. On Saturday, Rob earned $36 babysitting.
    13·1 answer
  • NEED HELP NOW WITH EXPLANATION <br><br><br><br><br><br><br><br><br><br><br><br> 11=4p-5
    13·1 answer
  • (3-√5)(3-√5)<br> Please Include Steps
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!