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
ruslelena [56]
3 years ago
15

Simplify the number using the imaginary unit I. sqrt-25 a.-5t b.5i c.-5 d.5

Mathematics
2 answers:
Studentka2010 [4]3 years ago
7 0
\sqrt{-25} = \sqrt{-1\times25} = \sqrt{25}  \sqrt{-1} =5i
pentagon [3]3 years ago
4 0
The answer to this question is: B;5i
You might be interested in
Log(5) + log(3) rewrite the following in the form log(c).
Dennis_Churaev [7]
Log (5) + log (3) = log (15)
3 0
3 years ago
Read 2 more answers
The equation is________<br> Solve the equation x=________
Komok [63]

Answer:

7x-5 = 9

x = 2

Step-by-step explanation:

Let x be the number

7x-5 = 9

Add 5 to each side

7x-5+5 = 9+5

Divide each side by 7

7x = 14

7x/7 = 14/7

x=2

5 0
3 years ago
Let z denote a random variable that has a standard normal distribution. Determine each of the probabilities below. (Round all an
Lorico [155]

Answer:

P(Z < 2.37) = 0.9911.

Step-by-step explanation:

We are given that Let z denote a random variable that has a standard normal distribution.

Let Z = a random variable

So, Z ~ Standard Normal(0, 1)

As we know that the standard normal distribution has a mean of 0 and variance equal to 1.

                          Z  =  \frac{X-\mu}{\sigma}  ~ N(0,1)

where, \mu = mean = 0

           \sigma = standard deviation = 1

Now, the probability that z has a value less than 2.37 is given by = P(Z < 2.37)

        P(Z < 2.37) = P(Z < \frac{2.37-0}{1} ) = P(Z < 2.37) = 0.9911

The above probability is calculated by looking at the value of x = 2.37 in the z table which has an area of 0.9911.

4 0
3 years ago
Perpendicular line equation to y=3/5x+1
natulia [17]

Answer:

Find the negative reciprocal of the gradient, so 3 / 5 will switch its denominator with its numerator, and it will have the opposite sign.

So 3/5 will be - 5/3

Answer:

y = - 5 / 3x + 2

3 0
3 years ago
An elevator went up 15 floors, down 9 floors, up 11 floors, and down 19 floors. Find the net change.
NARA [144]

Answer: The net change would be -2.

Step-by-step explanation: The upward change of elevator is represented by positive sign while the downward change represented by negative sign.

Given, First the elevator goes up 15 floors, change = + 15, Then it goes 9 floors down, change = -9, Then it goes 11 floors up,Change = + 11, Finally, it goes 19 floor down, Change = - 19 So, the net change = sum of total changes = 15 - 9 + 11 - 19 = -2

your welcome!

6 0
2 years ago
Other questions:
  • Parallel to y=-1/4x-12 through (12,10)
    9·1 answer
  • There is a ratio of 2 boys to 3 girls in a class. Which of the following are correct ratios for the class?
    9·2 answers
  • What is the area of this circle? (Express your answer using π.) <br> (Note: The diameter is 10ft.)
    5·2 answers
  • Jake is 2 5 25 years old. Next year, he'll be 2 6 26 years old. What is the percentage increase in Jake's age from last year?
    8·2 answers
  • What are the partial products of 434 × 310 to find the product
    8·2 answers
  • The image of the point (-1,-8) under a translation is (0, -11). Find the coordinates of the image of the point (-4,-1) under the
    7·1 answer
  • A health insurance plan has a $50 enrollment fee and a copayment of $5 for each doctor visit. The function f(x)=5x+50 gives the
    7·1 answer
  • Given line y-1/6x+9,find a perpendicular line to the given line passes through points (6,-3)?
    10·1 answer
  • um dado de 6 faces numeradas de 1 a 6 e lançado de maneira aleatória deseja-se que ele caia com uma face para cima . Qual a prob
    13·1 answer
  • Lucy Lou went shopping a Hollister with her friends. Together they spent a mean price of $40 on 8
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!