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
ki77a [65]
3 years ago
8

TEN POINTS!!!! 8^-2 * 8^-9 in exponential form

Mathematics
1 answer:
muminat3 years ago
3 0

Answer:

8^ -11

Step-by-step explanation:

8^-2 * 8^-9

The bases are the same so we can add the exponents

8 ^ (-2+-9)

8^ -11

You might be interested in
Write exponent and bases of (-5)raise to power7 and (-9/7)raise to power6​
AleksAgata [21]

Answer:

The base of -5 raise to 7 is -5 and its exponent is 7. The base-9/7 raise to the power of 6 is -9/7 and it's exponent is 6.

Step-by-step explanation:

6 0
3 years ago
Choose the inequality that represents the following graph.
11Alexandr11 [23.1K]

Answer:

b is the answer I believe so because it have to be greater than 0

Step-by-step explanation:

I hope it's right and if not my bad

4 0
3 years ago
Kaylee found the surface area, in square inches of a rectangular prism by using formula. 2(5×3)+2(5×8)+2(3×8) What is the surfac
sladkih [1.3K]

Answer:

158

Step-by-step explanation:

Simplify the following:

2×5×3 + 2×5×8 + 2×3×8

5×3 = 15:

2×15 + 2×5×8 + 2×3×8

5×8 = 40:

2×15 + 2×40 + 2×3×8

3×8 = 24:

2×15 + 2×40 + 2×24

2×15 = 30:

30 + 2×40 + 2×24

2×40 = 80:

30 + 80 + 2×24

2×24 = 48:

30 + 80 + 48

| 8 | 0

| 4 | 8

+ | 3 | 0

1 | 5 | 8:

Answer:  158

6 0
3 years ago
Researchers at a pharmaceutical company have found that the effective time duration of a safe dosage of pain relief drug is norm
FrozenT [24]

Answer:

a) P(1

b) P(X

Step-by-step explanation:

1) Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

2) Part a

Let X the random variable that represent the duration of a safe dosage of pain relief drug, and for this case we know the distribution for X is given by:

X \sim N(1.5,0.8)  

Where \mu=1.5 and \sigma=0.8

We are interested on this probability

P(1

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:

P(1

And we can find this probability on this way:

P(-0.625

And in order to find these probabilities we can find tables for the normal standard distribution, excel or a calculator.  

P(-0.625

3) Part b

We are interested on this probability

P(X

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:

P(X

And we can find this probability on this way:

P(z

6 0
3 years ago
Illustrate the 7th pattern of the sequence of square numbers. ​
valentinak56 [21]

<em>1</em><em>,</em><em>4</em><em>,</em><em>9</em><em>,</em><em>1</em><em>6</em><em>,</em><em>2</em><em>5</em><em>,</em><em>3</em><em>6</em><em>,</em><em>4</em><em>9</em><em>,</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em>

<em>7</em><em>th</em><em> </em><em>pattern</em><em> </em><em>=</em><em>4</em><em>9</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em>

6 0
3 years ago
Read 2 more answers
Other questions:
  • All of the following are equivalent to 3 : 8 = x : 32 except
    10·1 answer
  • Can anyone help me do the questions that are circled with red and you don't need to do the graphing calculator thing, please
    8·1 answer
  • P=w/t,for W what is the equation to solve this problem
    9·1 answer
  • 2. New appliances for the kitchen will include a new refrigerator ($1,449.99), dishwasher ($489.99), and electric range ($616.99
    6·1 answer
  • Plz show work and answer thx u will get 100 points and make sure it's right
    9·1 answer
  • CAN SOMEONE HELP ME ANSWER THIS ​
    15·1 answer
  • What is the value of x in the equation x + 5.1 = 0
    11·2 answers
  • Nora make 3000 a month if she spends 26% how did Nora spend?
    6·2 answers
  • HELPPPPP PLS ILL GOVE THE BRAINLIEST ANSWER !! just help asap !!
    8·2 answers
  • HI. I really Need help. I will Mark Brainliest!
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!