solve for x 3x+10 3x -28 will mark brainest answers are 1. 33 2. 34 3. 35 4. 36 ty so much 1 left godbless ​

Answer:

Kindly check explanation

Step-by-step explanation:

Given the data:

79.3, 75.1, 78.2, 74.1, 73.9, 75.0, 77.6, 77.3, 73.8, 74.6, 75.5, 74.0, 74.7, 75.9, 72.9, 73.8, 74.2, 78.1, 75.4, 76.3, 75.3, 76.2, 74.9, 78.0, 75.1, 76.8

a) Calculate a point estimate of the mean pull-off force of all connectors in the population. State which estimator you used and why.

The mean can be used as a point estimate for the pull of force.

Using a calculator :

The mean(m) :

Σx /n = 1966/26

= 75.62 pounds

(b) Calculate a point estimate of the pull-off force value that separates the weakest 50% of the connectors in the population from the strongest 50%.

To obtain this, we calculate the median:

Median = 0.5(n + 1)th term

Median = 0.5(27)th term = 13.5

Take the 13th and 14th term:

(75.1 + 75.3) / 2 = 75.2 pounds

(c) Calculate point estimates of the population variance and the population standard deviation.

Using calculator ; the variance (s²) = 2.73815

The standard deviation (s) = √variance

s = √2.73815 = 1.655

(d) Calculate the standard error of the point estimate found in part (a). Interpret the standard error.

Standard Error = standard deviation / √n

Standard Error = 1.655 / √26

= 0.3245

(e) Calculate a point estimate of the proportion of all connectors in the population whose pull-off force is less than 73 pounds

Number of Proportions less than 73 pounds / number of samples

= 1 / 26

= 0.0385

Answer:

1. y² = 169

taking a square root of both sides

y = √169

we know that 13 * 13 = 169

since when squaring a number, the signs on the numbers do not matter

(i.e - 2* 2 = 4 and (-2)*(-2) = 4)

So (-13) * (-13) = 169 as well

Hence we can say that √169 = ±13      OR      √169 = +13   and   -13

2. Volume of a cube-shaped crate = side*side*side

Volume = side³

(We are given that volume = 27)

27 = side³

side = ∛27

Since 3*3*3 = 27     and (-3)*(-3)*(-3) = 27

So, we can say that ∛27  = ± 3

BUT

the side of a crate cannot be negative, so the side will NOT be -3 and hence,

side = 3

3. b³ = 1000

we know that 10*10*10 = 1000    and     (-10)*(-10)*(-10) = 1000

So, ∛1000 =  ∛(10*10*10)= ±10

4. Area of a square(Patio)  = Side²

Area = Side²

196 = Side² (Since we are given the area of the patio)

Side = √196 = √(14*14) or √(-14*-14)

Hence,

Side = + 14 or -14

but the side of a patio cannot be negative

Side = +14 ft

Answer:

12

Step-by-step explanation:

Answer:

thats easy j

Step-by-step explanation:

Answer:

3 child tickets and 2 adult tickets

Step-by-step explanation:

5t = 26

2c + 10a = 26

c = 3  a = 2

(2 * 3) + (10 * 2) = 26

6 + 20 = 26

The equations are c + a = 5 and 2c + 10a = 26. Then the number of children and adults will be 2 and 3, respectively.

The allocation of weights to the important variables that produce the calculation's optimum is referred to as a direct consequence.

Mr. Frankel bought 5 tickets to a puppet show and spent $26. He bought a combination of child tickets for $2 and adult tickets for $10 each.

Let 'c' be the number of children and 'a' be the number of adults. Then we have

a + c = 5                     ...1

2c + 10a = 26            ...2

From equations 1 and 2, then we have

2(5 - a) + 10a = 26

10 - 2a + 10a = 26

8a = 16

a = 2

Then the value of the variable 'c' is calculated as,

2 + c = 5

c = 3

The equations are c + a = 5 and 2c + 10a = 26. Then the number of children and adults will be 2 and 3, respectively.

More about the solution of the equation link is given below.

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Answer:

it should be D thx

Step-by-step explanation:

Answer:

Step-by-step explanation:

Solve for π

Answer:

Step-by-step explanation:

V = 4 π r³

      3

solve for π

3*V = 4π r³

3V = π

4r³

therefore.

π = 3V

      4r³

Answer:

Did you mean [tex]\frac{-2x}{9} ?\\[/tex]

Please clarify so that I can work this problem out for you :)

Step-by-step explanation:

Answer:

Answer:

Boy

Explanation:

Answer:

Boy

Explanation:

Answer:

Boy

Explanation:

Answer:

Boy

Explanation:

Answer:

Boy

Explanation:

Answer:

Boy

Explanation:

Answer:

Boy

Explanation:

Answer:

Boy

Explanation:

Answer:

Boy

Explanation:

Answer:

Boy

Explanation:

Step-by-step explanation:

The required number of employees being laid off is 90.

A percentage is a value that indicates 100th part of any quantity.

A percentage can be converted into a fraction or a decimal by dividing it by 100.

Given that,

The number of employees laid off last year was 75.

The percentage increase in laid off  for present year is 20%.

The number of employees laid off can be calculated as follows,

75 + 20% of 75

= 75 + 20/100 × 75

= 75 + 15

= 90

Hence, the number of employees laid off in the present year is 90.

To know more about percentage click on,

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Answer:

Step-by-step explanation:

0.72%, .63= 63%, 69%, 3/4

Answer:

121

we can factor it

121 = 11×11

121=(11)2

121=11

so options c is correct

Answer:

The answer is "[tex]\bold{ \mu =0.967, x=3, \ and \ e= 2.718}[/tex]".

Step-by-step explanation:

A distribution of poulet applies because it deals through events (bomb hits) over even a sample space (the region with [tex]0.95 \ km^2[/tex] area).  

Its average hit number per area is:  

[tex]\to \mu = \frac{\text{Number of hits of bomb}}{ \text{number of regions number}}[/tex]

       [tex]=\frac{535}{553} \\\\= 0.967 \\\\[/tex]

[tex]\to x = 3\\\\\to e = 2.718[/tex]

Answer:

since angle a and b are vertical angles

therefore we can say that,

i) <A=<B

or,20x+10=30x-10

or,10+10=30x-20x

or,20=10x

.°. x=10.

Answer:

9

Step-by-step explanation:

the answer is line h

Answer:

h <3

Step-by-step explanation:

Answer:

-5x+6

Step-by-step explanation:

Combine like terms:

-x + 5x - 9x = -5x

8 - 2 = 6

Answer: - 5x+6 plz name me brainliest. I got it right on my test

Step-by-step explanation:

-x + 5x - 9x = -5x

8 - 2 = 6

x=12

This the answer hope this helps

If you need the steps please feel free to contact me in the comments

Answer: The sum of rational and irrational number is always irrational...

Answer:

When both rational and irrational numbers are written in decimal form, rational numbers can be written as finite decimals and infinite recurring decimals, such as 4=4.0, 4/5=0.8, 1/3=0.33333... and irrational numbers can only be written as infinite non-recurring decimals, such as √ 2=1.414213562…………According to this point, people define irrational numbers as infinite non-recurring decimals. 2. All rational numbers can be written as the ratio of two integers; irrational numbers cannot.

(Rational number): A number that can be accurately expressed as the ratio of two integers. 　　 Such as 3, -98.11, 5.72727272..., 7/22 are all rational numbers. 　　 Integers and fractions are all rational numbers. Rational numbers can also be divided into positive rational numbers, 0 and negative rational numbers. 　　 Irrational numbers refer to infinite and non-recurring decimals such as: π 　　·The difference between irrational and rational numbers: 　　 1. When both rational and irrational numbers are written in decimal form, rational numbers can be written as finite decimals and infinite cyclic decimals. 　　 For example, 4=4.0, 4/5=0.8, 1/3=0.33333... and irrational numbers can only be written as infinite and non-cyclic decimals. 　　 For example, √2=1.414213562…………According to this point, people define irrational numbers as infinite and non-cyclic decimals. 　　2, all rational numbers can be written as the ratio of two integers; irrational numbers cannot. Based on this, some people suggested that irrational numbers should be removed from the "irrational" hat, and rational numbers should be called "comparative numbers" and irrational numbers should be called "irrational numbers". Originally, irrational numbers are not unreasonable, but people don't know much about it at first. 　　Using the main difference between rational and irrational numbers, we can prove that √2 is irrational. 　　Proof: Assume that √2 is not an irrational number, but a rational number.Since √2 is a rational number, it must be written as the ratio of two integers: √2 = p / q Since p and q do not have a common factor to be reduced, p / q can be considered to be the reduced fraction, the simplest form of fraction. Put √2 = p / q squared on both sides Get 2 = (p ^ 2)/(q ^ 2) Is 2 (q ^ 2) = p ^ 2 Since 2q ^ 2 is an even number, p must be an even number, so set p = 2m From 2 (q ^ 2) = 4 (m ^ 2) Get q ^ 2 = 2m ^ 2 Similarly, q must be an even number, let q = 2n Since p and q are both even numbers, they must have a common factor of 2, which contradicts the previous assumption that p/q is a reduced fraction. This contradiction is caused by the assumption that √2 is a rational number. Therefore √2 is an irrational number.

.

Answer:

Mitchell's dog is 3 years old

Step-by-step explanation:

9 x 1/3 = 3

9 + 3 = 12

To solve this I just thought of the multiples of three under 12 that if added to 3 are equal to 12 to find Katie's cat age. The multiples of three under 12 are 3, 6 and 9. It couldn't be 3 and 6+3=9 so it had to be 9. So if Katie's cat is 9, you just multiply 9 by 1/3 or divide it by 3 to find Mitchell's dog age.

Answer:

Length of each shelf is 0.45 meters

Step-by-step explanation:

Given

[tex]Total\ Length = 2.25\ meters[/tex]

[tex]Shelves = 5[/tex]

Required

Determine the length of each shelf

This is calculated by dividing the total length by number of shelves as thus:

[tex]Length = Total\ Length/Number\ of\ Shelf[/tex]

[tex]Length = 2.25m /5[/tex]

[tex]Length = 0.45m[/tex]

Hence;

Length of each shelf is 0.45 meters

Answer:

0.45

Step-by-step explanation:

Answer:

$6,000

Step-by-step explanation:

Basically just multiply 25*16 to see how many raffle tickets the class sold in total (400). Then to find the amount of money they raised, multiply 400*15 (6,000).

Answer:

4% out of 100

Step-by-step explanation:

4% out of 100 students took the exam

Answer:

28.08

Step-by-step explanation:

4(3+5)−3.92

Add 3 and 5 to get 8

4×8−3.92≈28.08

Multiply 4 and 8 to get 32

32−3.92≈28.08

Subtract 3.92 from 32 to get 28.08

28.08

Answer:

I belive the number you are searching for is 35.

Step-by-step explanation:

Simply divide 142.20 by 6 to get the hourly wage(23.70). Divide 829.50 by the hourly wage to get the answer. (35)

Answer:

I'm pretty sure it's cubic meters

Answer:

Listen don't use this site

Step-by-step explanation:

They are using people to make money

Answer:

2x - 4

Step-by-step explanation:

So first the length is 4 feet less than twice the width meaning that to find the length you subtract twice the width ( 2x ) minus 4.

Thus it becomes 2x - 4

HOPE IT HELPED