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
tangare [24]
3 years ago
11

Can someone help me with this question please.....

Mathematics
2 answers:
viva [34]3 years ago
7 0

Answer:

9g/cm3 (g/ml)

Step-by-step explanation:

d(roe)=m/v=63g/7cm3=9g/cm3(g/ml)

d(roe)=m/v=117g/13cm3=9g/cm3(g/ml)

Lynna [10]3 years ago
4 0

Step-by-step explanation:

  • We can get the density either by converting both the masses and the volumes or we solve them like like that using the formula Density = P = Mass/Volume. After converting both mass and volume, your unit will be in kg/m^3..........Without converting, your unit will be in g/cm^3

You might be interested in
Which distribution is used to test the claim that women have a higher mean resting heart rate than men?
xeze [42]

This question is incomplete, the complete question is;

Assume that two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Which distribution is used to test the claim that women have a higher mean resting heart rate than men?

A.t

B.F

C.Normal

D. Chi-square

Answer:

A) t  test

Step-by-step explanation:

A t-test uses sample information to assess how plausible it is for the population means μ1​ and μ2​ to be equal.

The formula for a t-statistic for two population means (with two independent samples), with unknown population variances shows us how to calculate t-test with mean and standard deviation and it depends on the assumption of having an equal variance or not.

If the variances are assumed to be not equal,

he formula is:

t =  (bar X₁ - bar X₂) / √( s₁²/n₁ + s₂²/n₂ )

If the variances are assumed to be equal, the formula is:

t =  (bar X₁ - bar X₂) / √ (((n₁ - 1)s₁² + (n₂ - 1)s₂²) / (n₁ + n₂ - 2)) ( 1/n₁ + 1/n₂)

it called t-test for independent samples because the samples are not related to each other, in a way that the outcomes from one sample are unrelated from the other sample.

hence option A is correct. t test

4 0
3 years ago
On a treasure map, the last clue is that the treasure is buried is buried a certain number of feet away from a tree. the distanc
Trava [24]
The lcm of 20 and 8 is 40 feet.
3 0
2 years ago
Factor x^3 -7x^2 -5x+35 by grouping. what is the resulting expression
Anni [7]

Answer:

(x-7) (x^2-5)

Step-by-step explanation:

x^3 -7x^2 -5x+35

Make 2 groups

x^3 -7x^2      -5x+35

Factor x^2 from the first group and -5 from the second group

x^2 (x-7)       -5(x-7)

Now factor (x-7) out

(x-7) (x^2-5)

8 0
3 years ago
Find the probability of spinning an even number AND rolling an odd number.
Agata [3.3K]
You have a 1/2 chance of spinning an even number on the spinner, and a 1/2 chance of rolling an odd number on the die, 1/2 times 1/2 give you a 1/4 chance of doing both of those tasks.
3 0
3 years ago
Read 2 more answers
Henry buys an item for $4.23. He gives the cashier a $20 bill. How much money should Henry get back?
N76 [4]

Answer:

Henry will get $15.77 back.

Step-by-step explanation:

20 - 4.23 = 15.77

7 0
2 years ago
Other questions:
  • Someone please help i think im just over looking it
    11·1 answer
  • HOW DO U DO THIS????
    10·1 answer
  • Seven friends have a similar cell phone plan
    14·2 answers
  • consider gk located at g (0,0) and k (4,4). describe the dilation of gk by a scale factor of 2 centered at (-2,-4)
    9·2 answers
  • PLEASE HELLLLLLP MEEE
    9·1 answer
  • What is the difference between a terminating decimal and a repeating decimal?​
    6·1 answer
  • Calculate the area of the triangle with the following vertices. Include the matrix with your work. (-5, 1), (2, 9), and (-5, 9)
    10·1 answer
  • The Great Pyramid of Giza has an approximate height of 252 yards, and the square base has side lengths of approximately 152 yard
    8·1 answer
  • Solve the system of equations by the substitution method.
    6·1 answer
  • What is the value of x?​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!