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
pentagon [3]
3 years ago
10

Fill in the blanks below.

Mathematics
2 answers:
mihalych1998 [28]3 years ago
5 0
A-4
B+19 yass yass yass
ElenaW [278]3 years ago
3 0

Answer:

A. -4

B. +19

Step-by-step explanation:

You might be interested in
Is it ever possible that cos (A−B)=cos ⁡A−cos ⁡B? Why
svetlana [45]

Answer:

  yes, there are an infinite number of solutions

Step-by-step explanation:

The attached graph shows values of A and B (x and y) that can make this equation be true. Any of the points on any of the curves will satisfy the equation. (The repetition continues indefinitely in all directions.)

8 0
2 years ago
What is 0.08% written as a decimal?
otez555 [7]

Answer:

0.0008

Step-by-step explanation:

divide 0.08 by 100

answer is 0.0008

7 0
3 years ago
A right cone has an altitude of 4 units and a base diameter of 6 units. What is it’s lateral area?
fenix001 [56]

Answer:

Lateral area  =

pi *  (radius) * √ [ height ^2  + radius^2 ]  =

pi *  ( 4 )  * √ [  4^2 + 3^2 ]  =

pi * ( 4 ) * √25  =

pi * ( 4 ) * (5 )  =

20 pi  units^2  ≈   62.8 units^2

Step-by-step explanation:

4 0
3 years ago
A particular psychological test is used to measure need for achievement. The average test score for all university students in O
Angelina_Jolie [31]

Answer:

Only B and C are always true.

Step-by-step explanation:

To analyse which statements are always true, we go through the process of finding confidence intervals for sample means, from the start.

Confidence Interval = (Sample mean) ± (Margin of error)

From this expression, it is evident that the margin of error determines how wide the confidence interval would be.

Sample Mean = 110 (given)

Margin of Error = (Critical value) × (Standard deviation of the distribution of sample means)

Since no information about the population standard deviation is provided, the critical value is obtained using t-distribution.

The critical value usually varies at different confidence levels and degree of freedoms.

The higher the confidence level, the higher the critical value and the higher the margin of error leading to a wider range.

Hence, a confidence interval of 95% will have a higher critical value than a confidence interval of 90%. Hence, statement C is proved once that 'for n = 100, the 95% confidence interval will be wider than the 90% confidence interval'.

After obtaining the critical value, we then obtain the standard deviation of the distribution of sample means or simply the standard error of the mean. This is given as

σₓ = σ/√n

where σ = standard deviation; which isn't given. The standard deviation might be high enough to guarantee that the Margin of error is high too for the confidence interval to contain 115 or low enough to ensure that the Margin of error is very small and the confidence interval will not contain 115.

Or the sample size might be high enough to make the standard error of the mean to be eventually small and lead to a small margin of error and the condidence interval will not contain 115.

The point is, it isn't always sure that the resulting interval.would contain 115. So, statement A isn't always true.

Then from σₓ = σ/√n,

n = sample size, a large sample size means a more narrow confidence interval and a small sample size means a wider sample size. This proves statement C.

The 95% confidence interval for n = 100 will be more narrow than the 95% confidence interval for n = 50.

Hence, Only B and C are always true.

Hope this Helps!!!

5 0
3 years ago
Anyone mind helping?
elena-s [515]

Answer:

15 x^8 y^3

Step-by-step explanation:

The area of a rectangle is given by

A = l*w  where l is the length and w is the width

A = ( 5x^6 y^2) *( 3x^2 y)

   = 15 x^(6+2) y^(2+1)

   = 15 x^8 y^3

4 0
2 years ago
Read 2 more answers
Other questions:
  • Adding and subtracting fractions
    9·2 answers
  • Find the smallest 3-digit number which gives the remainder 1 when divided by 3 and by 4.
    12·1 answer
  • Forty two and six thousandths into a decimal
    12·1 answer
  • What is the average of the following numbers <br> .406<br> .407<br> .408<br> .405<br> .411<br> .406
    10·1 answer
  • Help me please!!! I’m going to fail
    7·2 answers
  • The candy store is having a 30% off sale. Emma is going to buy $7.50 worth of candy.How much will she pay after the discount
    5·1 answer
  • Let f(x) = cos(x). Find the x-intercepts of f(x) on [0, 2π).
    5·2 answers
  • In ANOP, n = 1.1 inches, o = 2.1 inches and p=2.6 inches. Find the measure of ZP to
    7·1 answer
  • What is 9% of 12.3?????
    6·2 answers
  • Please help its about the graph thing
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!