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
sammy [17]
2 years ago
11

Please help me with thissss

Mathematics
1 answer:
Evgesh-ka [11]2 years ago
7 0

Answer:

a.) The sum of the weights of the two in insects is 0.0031 grams. (0.0031 grams)

b.) The fly is 0.0013 grams heavier than the gnat. (0.0013 grams)

Step-by-step explanation:

2.2 * 10^-3 = 2.2 * 1/1000 which is 2.2/1000.

9 * 10^-4 = 9 * 1/10000 = 9/10000

To add 9/10000 to 2.2/1000 we have to find the common denominator, which will be 10000.

So we do:

2.2/1000 * 10/10 = 22/10000

9/10000 + 22/10000 = 31/10000 = 0.0031.

The sum of the weights of the two in insects is 0.0031 grams.

To find how much heavier the fly is than the gnat we do:

22/10000 - 9/10000 = 13/10000 = 0.0013

The fly is 0.0013 grams heavier than the gnat.

You might be interested in
I’m confused how do you know where to put the plus and minus signs when rearranging the equation?
IRINA_888 [86]
-5/12k +29/36m is simplified
7 0
3 years ago
A songwriter gets paid monthly at a rate of $150 for each song he completes. Last month he wrote 8 songs and got halfway through
DaniilM [7]

Answer:

The answer would be 1275 if they get paid for half the money on the 9th song

Step-by-step explanation:

3 0
2 years ago
Does someone that knows how to do this??
mezya [45]

Answer:

-1/2

Step-by-step explanation:

rise over run

rise is -2

run is 4

(-2/4)/2=(-1/2)

hope this helps :3

if it did pls mark brainliest

6 0
2 years ago
48% of their readers own a particular make of car. A marketing executive wants to test the claim that the percentage is actually
oksian1 [2.3K]

Answer:

There is no sufficient evidence to support the executive claim

Step-by-step explanation:

From the question we are told that

     The  population proportion is  p =  0.48

      The  sample proportion is  \r p  =  0.45

       The sample  size is  n  =  300

       The  level of significance is \alpha  =  0.02

The null hypothesis is  H_o  :  p=  0.48

The  alternative hypothesis is  H_a  :  p \ne  0.48

   Generally the test statistics is mathematically evaluated as

           t =  \frac{\r p  -  p  }{ \sqrt{ \frac{p(1 -  p )}{n} } }

=>        t =  \frac{0.45   -  0.48   }{ \sqrt{ \frac{0.48 (1 -  0.48 )}{300} } }

=>       t =  -1.04

The  p-value is mathematically represented as

     p-value  =  2P(z  >  |-1.04|)

Form the z-table  

                 P(z  >  |-1.04|)  =   0.15

=>   p-value  =  2 * 0.15

=>   p-value  = 0.3

Given that  p-value  >  \alpha  we fail to reject the null hypothesis

   Hence we can conclude that there is no sufficient evidence to support the executive claim

5 0
3 years ago
I just need help ASAP!
arsen [322]

Answer:

6,283in^3

Step-by-step explanation:

The formula of the volume of a cylinder is the area of its base (which is the area of a circle) times its height.

V = \pi r ^2 h

V = \pi \times 10^2 \times 20 \\V = 6,283 in^3

7 0
3 years ago
Other questions:
  • What temperature Is 6 degrees less than 2 degrees Celsius
    13·1 answer
  • Quadrilateral abcd is inscribed in a circle with m∠a = (x)degrees, m∠b = (2x - 10)degrees, and m∠c = (3x)degree. what is m∠d?
    5·1 answer
  • 2 to 6 = 4 to? ??????????
    12·2 answers
  • Find an ordered pair (x, y) that is a solution to the equat<br> 4x - y = 7
    13·2 answers
  • can explain how to get this answer, In how many ways can 4 pizza toppings be chosen from 12 available toppings?
    11·1 answer
  • What two whole numbers does √89 fall in between ?
    5·1 answer
  • DUE IN 3 MINUTES PLEASE HELP
    14·1 answer
  • Shawna purchased a new laptop.  The sale advertised 25% off the regular price.  If the regular purchase price is $575.00, what w
    10·1 answer
  • Wats 3000000000000*30000000000000
    6·2 answers
  • A delivery truck is transporting boxes of two sizes: large and small. The large boxes weigh 22 kilograms each, and the small box
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!