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3 years ago

Hey I accidentally typed the wrong username. Can I change it

Mathematics

2 answers:

Tasya [4]3 years ago

7 0

Answer:

probably

Step-by-step explanation:

lord [1]3 years ago

6 0

Answer:

I don't know about username, sometimes you have to email Brainly to change your username. But I found this in the faq

Step-by-step explanation:

1. Log in to your account.

2. Go into your Profile Settings, select Edit Profile

3. Go to Your Preferences and edit the First Name section

4. Select Change to save

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Please answer this with explanation. Please I really am struggling. I will mark you brainalist. Please solve it Please

Hatshy [7]

Answer:

13, 11, 4, 16, 6, 22

Step-by-step explanation:

<em>Let the second digit be x and the last digit be y</em>

Given:

Data set: 13, x, 4, 16, 6, y
Mean = 12
y = 2x or x = 2y

The mean of the data is the average. The average can be calculated by determining the sum of the terms and dividing it by the total digits.

$\implies \text{Mean of data:} \ \dfrac{13 + x + 4 + 16 + 6 + y}{6} = 12$

Let us substitute the value of y (2x) in the data.

$\implies \dfrac{13 + x + 4 + 16 + 6 + 2x}{6} = 12$

Now, add all the terms in the data and simplify.

$\implies \dfrac{39 + x +2x}{6} = 12$

$\implies \dfrac{39 + 3x}{6} = 12$

Distribute the denominators and simplify.

$\implies \dfrac{39}{6} + \dfrac{3x}{6} = 12$

$\implies \dfrac{13}{2} + \dfrac{x}{2} = 12$

$\implies 6.5 + \dfrac{x}{2} = 12$

Subtract 6.5 both sides and simplify.

$\implies 6.5 + \dfrac{x}{2} - 6.5 = 12 - 6.5$

$\implies \dfrac{x}{2} = 5.5$

Use cross multiplication and simplify.

$\implies x= 5.5 \times 2$

$\implies x= 11$

To determine the value of "y", simply substitute the value of "x" into the expression that represents the value of "y".

$\implies y = 2x$

$\implies y = 2(11)$

$\implies y = 22$

When the x and y values are substituted in the data, we get;

⇒ 13, 11, 4, 16, 6, 22

Therefore, the data is 13, 11, 4, 16, 6, 22.

8 0

2 years ago

The Trial Urban District Assessment (TUDA) is a government-sponsored study of student achievement in large urban school district

Bas_tet [7]

Answer:

A. Because the sample size is very large.

Step-by-step explanation:

The sample is quite large, so the t test is safe. With a sample size of at least 100, this test is going to be safe.

So the correct answer is:

A. Because the sample size is very large.

4 0

4 years ago

You deposit $1500 in an account that pays 7% annual interest. Find the balance after 2 years when the interest is compounded dai

just olya [345]

A = $ 1,721.28

A = P + I where

P (principal) = $ 1,500.00

I (interest) = $ 221.28

3 0

3 years ago

What cannot be used as evidence in a proof

gtnhenbr [62]

K12? Me too.
It would be educated guess. I just finished that practice cause I'm catching up :) Good luck!

8 0

4 years ago

What is the probability of pulling a card that is not an odd numbered card from a deck of cards?

leva [86]

Total number of cards = 52
Number of odd cards in one set = 4
Number of odd cards in total 4 sets= 4*4=16
52-16 = 36 = number of not odd cards
36/52 = 9/13

8 0

3 years ago