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3 years ago

BRAINLIEST ANSWER Solve for x. 9(x + 1) = 25 + x x = 2 x = 3 x = 4 x = 54

Mathematics

2 answers:

postnew [5]3 years ago

4 0

Answer:

x=2

Step-by-step explanation:

Distribute the 9 on the left side, resulting in

9x+9=25+x

Subtracting 9 and x from both sides gives us

8x=16

Dividing by 8 gets

x=2

beks73 [17]3 years ago

3 0

Solve the following: x – 2= 7

Answer:

Given, x -2 = 7

=> x – 2 + 2= 7 + 2 [Adding 2 both sides]

=> x = 9

Question 2:

Solve of the following: y + 3 = 10

Solution:

Given, y + 3 = 10

=> y + 3 – 3 = 10 – 3 [subtracting 3 on both side]

=> y = 7

Question 3:

Solve the following: 6 = z + 2

Answer:

Given, 6 = 2 + z

=> 6 – 2 = z + 2 – 2 [Subtracting 2 both sides]

=> 4 = z

=> z = 4

Question 4:

Solve the following: 3/7 + x = 17/7

Answer:

Given, 3/7 + x = 17/7

=> 3/7 + x – 3/7 = 17/7 – 3/7 [Subtracting 3/7 on both sides]

=> x = (17 - 3)/7

=> x = 14/7

=> x = 2

Question 5:

Solve the following: 6x = 12

Answer:

Given, 6x = 12

=> 6x/6 = 12/6 [Dividing 6 on both side]

=> x = 2

Question 6:

Solve the following: t/5 = 10

Answer:

Given, t/5 = 10

=> t/5 * 5 = 10 * 5 [Multiply by 5 on both side]

=> t = 50

Question 7:

Solve the following: 2x/3 = 18

Answer:

Given, 2x/3 = 18

=> 2x = 3 * 18

=> 2x = 54

=> x = 54/2

=> x = 27

Question 8:

Solve the following: 1.6 = y/1.5

Answer:

Given, 1.6 = y/1.5

=> y = 1.6 * 1.5

=> y = 2.40

Question 9:

Solve the following: 7x – 9 = 16

Answer:

Given, 7x – 9 = 16

=> 7x = 16 + 9

=> 7x = 25

=> x = 25/7

Question 10:

Solve the following: 14y – 8 = 13

Answer:

Given, 14y – 8 = 13

=> 14y = 13 + 8

=> 14y = 21

=> y = 21/14

=> y = 3/2 [21 and 14 are divided by 7]

Question 11:

Solve the following: 17 + 6p = 9

Answer:

Given, 17 + 6p = 9

=> 6p = 9 – 17

=> 6p = -8

=> p = -8/6

=> p = -4/3 [8 and 6 are divided 2]

Answer = A Linear Equation is an algebraic equation composed of a constant (e.g. x = 3) or a variable to the power of 1 (e.g. 2a + 3 = 13).

Remember that 2a means 2 × a.

Solving an equation is to figure out what number is represented by the variable. For example, in the equation 2a + 3 = 13, the variable a is 5. That’s what I can

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The function f(g(2)) is an illustration of a composite function

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Given:

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To calculate f(g(2)), we start by calculating g(2)

From the table;

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2 years ago

Please Help me Put the numbers to order them from least to greatest. -2.86 -0.37 0.91 0.19 1.46

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Answer:

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Step-by-step explanation:

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A simulation was conducted using 10 fair six-sided dice, where the faces were numbered 1 through 6. respectively. All 10 dice we

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Answer:

C) a sample distribution of a sample mean with n = 10

$\mu_{{\overline}{X}} = 3.5$

and $\sigma_{{\overline}{Y}} = 0.38$

Step-by-step explanation:

Here, the random experiment is rolling 10, 6 faced (with faces numbered from 1 to 6) fair dice and recording the average of the numbers which comes up and the experiment is repeated 20 times.So, here sample size, n = 20 .

Let,

$X_{ij}$ = The number which comes up on the ith die on the jth trial.

∀ i = 1(1)10 and j = 1(1)20

Then,

$E(X_{ij})$ = $\frac {1 + 2 + 3 + 4 + 5 + 6}{6}$

= 3.5 ∀ i = 1(1)10 and j = 1(1)20

and,

$E(X^{2}_{ij}$ = $\frac {1^{2} + 2^{2} + 3^{2} + 4^{2} + 5^{2} + 6^{2}}{6}$

= $\frac {1 + 4 + 9 + 16 + 25 + 36}{6}$

= $\frac {91}{6}$

$\simeq$ 15.166667

so, $Var(X_{ij}$ = $(E(X^{2}_{ij} - {(E(X_{ij})}^{2})$

$\simeq 15.166667 - 3.5^{2}$

= 2.91667

and $\sigma_{X_{ij}}$ = $\sqrt {2.91667}[/tex [tex]\simeq 1.7078261036$

Now we get that,

$Y_{j} = \frac {\sum_{j = 1}^{20}X_{ij}}{20}$

We get that $Y_{j}'s$ are iid RV's ∀ j = 1(1)20

Let, ${\overline}{Y} = \frac {\sum_{j = 1}^{20}Y_{j}}{20}$

So, we get that $E({\overline}{Y}) = E(Y_{j})$

= $E(X_{ij}$ for any i = 1(1)10

= 3.5

and,

$\sigma_{({\overline}{Y})} = \frac {\sigma_{Y_{j}}}{\sqrt {20}} = \frac {\sigma_{X_{ij}}}{\sqrt {20}} = \frac {1.7078261036}{\sqrt {20}} [tex]\simeq 0.38$

Hence, the option which best describes the distribution being simulated is given by,

C) a sample distribution of a sample mean with n = 10

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