2×5+1÷2×16+1 in a fraction and in it's simplest form​

The 90% confidence interval for the population mean is (132.1, 143.9). Then the correct option is C.

The probability or the chances of error while choosing or calculating a sample in a survey is called the margin of error.

A simple random sample of 90 is drawn from a normally distributed population, and the mean is found to be 138, with a standard deviation of 34.

The 90% confidence interval for the population mean. Then we have

[tex]\rm Margin \ of \ error = z * \dfrac{Standard \ deviation}{\sqrt{sample \ size}}\\\\\\\Margin \ of \ error = 1.645 * \dfrac{34}{\sqrt{90}}\\\\\\Margin \ of \ error = 5.9[/tex]

The interval will be given as

Mean ± Margin of error

138 ± 5.9

Then the interval will be (132.1, 143.9).

More about the margin of error link is given below.

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Answer:

The answer is C. 132.10 to 143.90

Step-by-step explanation:

please brainliest? :)

Answer:

[tex]D^{2}[/tex]-9d+54-[tex]\frac{332}{d+6}[/tex]

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

2 lines for each letter is the maximum.

They could be intersecting lines

So we know

[tex]\\ \rm\rightarrowtail y=ab^x[/tex]

Put what's given

[tex]\\ \rm\rightarrowtail -3=ab^0[/tex]

[tex]\\ \rm\rightarrowtail -3=a[/tex]

Now put back

[tex]\\ \rm\rightarrowtail y=-3b^x[/tex]

[tex]\\ \rm\rightarrowtail y=-3e^x[/tex]

Graph attached

Answer:

General form of an exponential function:  [tex]y=ab^x[/tex]

where:

If [tex]b > 1[/tex]  then it is an increasing function

If [tex]0 < b < 1[/tex] then it is a decreasing function

Also [tex]b\neq 1[/tex]

Given:

[tex]\implies y=(-3)b^x[/tex]

If we want the function to be decreasing, then as [tex]a[/tex] is negative, we need [tex]b > 1[/tex] to make the overall function decreasing.  

Let [tex]b=2[/tex] :

[tex]\implies y=(-3)2^x[/tex]

If we want the function to be increasing, then as [tex]a[/tex] is negative, we need [tex]0 < b < 1[/tex] to make the overall function increasing.

Let [tex]b=\dfrac12[/tex] :

[tex]\implies y=-3\left(\dfrac12\right)^x[/tex]

However, it doesn't matter whether the function is increasing or decreasing as the range of both of the above given functions is < 0 as [tex]a[/tex] is negative and [tex]b[/tex] is positive.

Answer: 4,9,14,19,24

The term to term rule is "add 5"

Step-by-step explanation:

From the question,

First term = a = 4

Fifth term = a+(n-1)d = a+(5-1)d = a+4d = 24

Since a + 4d = 24

We slot on the value of a

a + 4d = 24

4 + 4d = 24

4d = 24 - 4

4d = 20

d = 20/4

d = 5

The term to term rule will be "add 5"

The arithmetic sequence will be:

4

4+5 = 9

9+5 = 14

14+5 = 19

19+5 = 24

Answer:

n>4

Step-by-step explanation:

1. Let's first simplify each sides.

7 + 13n − 1 > 5(2n+2) + 8

a. 7 - 1

Distribute the 5.

b. 5 x 2n = 10n

   5 x 2 = 10

c. 10n + 10 + 8 = 10n + 18

13n + 6 > 10n + 18

2. Now, eliminate 10n on both sides, as there can't be 2 variables on the opposite sides.

13n  + 6 > 10n + 18

-10n        -10n

a. 3n + 6 > 18

3. Subtract 6 from each side.

3n + 6 > 18

     -6     -6

a. 3n > 18

Divide 3

b. n > 4

Sorry for the long explanation, but i hope this helps!

Answer:

x = 11

Step-by-step explanation:

Answer:

4. Translation 6 unit right and 2 units down.

Step-by-step explanation:

Let' take the point and it's corresponding image.

x(-2,0) and x'(4,-2)

Now,let's find the translation

-2+? =4

0+? =-2

Now, if we solve each for ?, we get

-2+?=4, gives ? =6

0+?=-2 gives ?=-2

It means the translation is move right 6 units and down 2 units.

So, option 4 is right.

Answer:

Step-by-step explanation:

Follow (PEMDAS) order of operations

[tex]3-5+3\left(2-1\right)+4\div \:2\\\\3-5+3\cdot \:1+4\div \:2\\\\3-5+3+4\div \:2\\\\3-5+3+2\\\\3[/tex]

~

Answer: you will land on tails about 100 times if it is a fair coin

Step-by-step explanation: Hope this helps!

Answer:

3/5

Step-by-step explanation:

(I'm just doing this for the badge)

Answer:

221

Step-by-step explanation:

8848 / 40 = 221.2 round down and get 221

Hope this helps! Please let me know if you need more help or think my answer is incorrect. Brainliest would be MUCH appreciated. Have a wonderful day!

Answer:

so involved triangles we know that one angle is 90° because of the right angle sign and you know that two x two interior angles add up to 180 angle so 90 degrees we will name the unknown angle x + x is equals to 127 degrees x is equals to 37 degrees so we have two angles are both of the triangles that is 90 degrees and 37 degrees 37 degrees is on the upper part of the triangle so it'll be 37° + 37° to get 74 degrees and the angle that you're looking for is a reflex angle so it'll be 360 degrees - 74 degrees so they think the answer is 286 degrees

Answer:

1 is your answer if not idk

Step-by-step explanation:

because if there is 4 and its 3 then its 1

The equation that represent this situation is 5d + 1 = c

An equation is an expression that shows the relationship between two or more numbers and variables.

Let d represent the number of days and c represent the number of chapters. Hence:

3d + 2d + 1 = c

5d + 1 = c

The equation that represent this situation is 5d + 1 = c

Find out more on equation at: https://brainly.com/question/2972832

Answer:

an= $,500 (x5) n-1

Step-by-step explanation:

The error is the n-1 because this means a number subtracted by 1 there for it would be 1.500 subtracted by 1 but this info is not needed.

Answer:   y= 3x - 5 + 5 - 5

Step-by-step explanation:  

Answer:

105

Step-by-step explanation:

The point entire team scored is 100%

The point Lebron scored is 40% and that is equal to 42

if 40% is equal to 42 then to find the whole we use the following equation:

42*100/40 = 105 is the total point the team got

Answer

D. -18

Step-by-step explanation:

p ( x ) = 5x + 30, q ( x ) = 11x -24

( q - p ) (6 ) = 11x -24 - ( 5x + 30 )

                  = 11.6 - 24 - 5.6 - 30

                  = 66 - 24 - 30 -30

                  = 42 -30 -30

                  = 12 -30

                  = -18

Step-by-step explanation:

combine the like terms

(6x^2 + x^2) + (7x + 5x) + (1 + 6)

7x^2 + 12x + 7

Answer:

Given that,

x⁴y⁵ + x⁵y⁴ = 810

➝ x⁴y⁴(x+y) = 810 ---(1)

[tex] \: [/tex]

Further given that,

x⁶y³ + x³y⁶ = 945

x³y³(x³y³) = 945

[tex] \: [/tex]

We know,

[tex] { \boxed{{x}^{3} + {y}^{3} = (x + y)( {x}^{2} - xy + {y}^{2}) }}[/tex]

So, using this identity, we get,

➝ x³y³( x + y )( x² - xy + y²) = 945

---(2)

[tex] \: [/tex]

On dividing equation (1) and (2), we get,

[tex] \longrightarrow\frac{ {x}^{2} - xy + {y}^{2} }{xy} = \frac{945}{810} [/tex]

[tex] \longrightarrow \: \frac{ {x}^{2} + {y}^{2} }{xy} - 1 = \frac{7}{6} [/tex]

[tex] \longrightarrow \: \frac{ {x}^{2} + {y}^{2} }{xy} = \frac{7}{6} + 1[/tex]

[tex] \longrightarrow \: \frac{ {x}^{2} + {y}^{2} }{xy} = \frac{7 + 6}{6} [/tex]

[tex] \longrightarrow \: \frac{ {x}^{2} + {y}^{2} }{xy} = \frac{13}{6} [/tex]

[tex] \: [/tex]

➝ 6x² + 6y² = 13xy

➝ 6x² - 13xy + 6y² = 0

➝ 6x² - 4xy - 9xy + 6y² = 0

➝ 2x( 3x - 2y ) - 3y( 3x - 2y ) = 0

➝ ( 3x - 2y ) ( 2x - 3y ) = 0

[tex] \longrightarrow \:{ \bold{ x = \frac{3y}{2} \: \: \: or \: \: x = \frac{2y}{3} }}[/tex]

[tex] \: [/tex]

[tex] \: [/tex]

[tex]{ \underline {\underline {\red{Case:- 1 }}}}[/tex]

[tex]{ \bold{When \: x = \frac{3y}{2}}} [/tex]

In Substating the value of x in equation (1) we get,

[tex] \frac{81 {y}^{4} }{16} \times {y}^{4} \times ( \frac{3y}{2} + y) = 810[/tex]

[tex] \frac{ {y}^{8} }{16} \times ( \frac{5y}{2} ) = 10[/tex]

[tex] {y}^{9} = 64[/tex]

[tex] {y}^{9} = {2}^{6} [/tex]

[tex] \: [/tex]

[tex] \longrightarrow \: { \bold{y = {(2)}^{ \frac{2}{3} } }}[/tex]

[tex] \longrightarrow \: { \bold{x = \frac{3}{2} {(2)}^{ \frac{2}{3} } }}[/tex]

[tex] \: [/tex]

[tex] \: [/tex]

[tex]{ \underline {\underline {\red{Case:- 2}}}}[/tex]

[tex]{ \bold{When \: x \: = \frac{2y}{3} \rightarrow \: \: y = \frac{3x}{2} }}[/tex]

On Substituting the value of y in equation (2), we get,

[tex] \frac{81 {x}^{4} }{16} \times {x}^{4} \times ( \frac{3x}{2} + x) = 810[/tex]

[tex] \frac{ {x}^{8} }{16} \times ( \frac{5x}{2} ) = 10[/tex]

[tex] {x}^{9} = 64[/tex]

[tex] {x}^{9} = {2}^{6} [/tex]

[tex] \: [/tex]

[tex] \longrightarrow \: { \bold{x \: = {(2)}^{ \frac{2}{3} } }}[/tex]

[tex] \longrightarrow \: { \bold{y = \frac{3}{2} {(2)}^{ \frac{2}{3} } }}[/tex]

Answer:

Step-by-step explanation:

Given system:

1. Multiply the second equation by - 4 to get:

2. Now, add this up with the first equation:

3. Find the value of y:

The solution is (- 2, - 6)

Answer:

-5x² + 2x + 3

Step-by-step explanation:

Since its a trinomial, it has three terms.

Since it has a degree 2, the highest degree is 2 and will usually be the first term.

The coefficient of the first term must have a -5.

Standard form is like  ax² + bx + c

Where a,b, and c are variables.

So,  -5x² + 2x + 3 should work

We know the standard form

Now

So the expression is given by

Answer:

I think that it's the first one 2 times y divided by 7

Answer:

C. If a number has a negative cube root, then the number is negative.  

Step-by-step explanation:

took the quiz

The inverse of the conditional statement is " If a number does not have a negative cube root, then the number is not negative. "

A conditional statement is a type of logical statement that expresses a relationship between two propositions or statements. It typically takes the form "if p, then q" where p and q are propositions. The statement "if p, then q" is read as "if p is true, then q is true" or "p implies q".

The truth value of a conditional statement depends on the truth values of its antecedent (p) and its consequent (q). If p is true and q is true, then the conditional statement is true. If p is true and q is false, then the conditional statement is false. If p is false, then the truth value of the conditional statement is irrelevant and it is said to be vacuously true.

Given data ,

Let the statement be represented as A

Now , the inverse of the statement is A'

where A = "If a number is negative, then it has a negative cube root."

Now , the inverse of the conditional statement is

A' = " If a number does not have a negative cube root, then the number is not negative. "

Hence , the inverse is " If a number does not have a negative cube root, then the number is not negative. "

To learn more about conditional statements click :

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Answer:

I am the son of waterbut when I return to water I die

Ice

Answer: -2

Step-by-step explanation: The line has a slope of -2/1, which is just -2.

Answer:

Add 1 1/2 each time

Step-by step explanation

-2 add 1 1/2 is -1/2 then add 1 1/2 to that 1/2, etc

can i get brainliest?

Step-by-step explanation:

please mark me as brainlest

Answer:

[tex]\sf \dfrac{2a+1}{6}[/tex]

explanation:

[tex]\hookrightarrow \sf \dfrac{2a-2}{4} -\dfrac{a-4}{6}[/tex]

make the denominator same

[tex]\hookrightarrow \sf \dfrac{3(2a-2)}{12} -\dfrac{2(a-4)}{12}[/tex]

join both fractions together

[tex]\hookrightarrow \sf \dfrac{3(2a-2-2(a-4))}{12}[/tex]

expand the integers

[tex]\hookrightarrow \sf \dfrac{6a-6-2a+8}{12}[/tex]

simplify

[tex]\hookrightarrow \sf \dfrac{4a+2}{12}[/tex]

Final answer

[tex]\hookrightarrow \sf \dfrac{2a+1}{6}[/tex]

Answer:

[tex]\frac{2}{3}[/tex]

Step-by-step explanation:

"The probability of an event is the number of favorable outcomes divided by the total number of outcomes possible".

Here the number of favorable outcomes is 4, and the number of total outcomes is 6.

So the probability of NOT rolling a 1 or 6 is [tex]\frac{4}{6}[/tex] which is [tex]\frac{2}{3}[/tex]