All categories

3 years ago

Help is highly appreciated

Mathematics

2 answers:

ruslelena [56]3 years ago

6 0

Answer:

3/8

Step-by-step explanation:

Substitute given information into given equation

b=2, c=-7/4

2-(-1/8) + - 7/4

Make 2 into 16/8 (by multiplying it by 8/8 To make denominator the same)

16/8 -(-1/8) + -7/4

17/8 (Because when negative and negative will make positive)

17/8+ -7/4

Make -7/4 into -14/8 (by multiplying it by 2/2 To make denominator the same)

17/8 -14/8 (Because negative and positive will make negative)

3/8 is the final answer

I hope this helps, dont hesitate to ask for any question.

Mark me as brainliest is appreciated.Tq!!

grandymaker [24]3 years ago

3 0

Answer:

Step-by-step explanation:

2-(-1\8)±-7\4 then

2 plus 1\8 plus -7\4

2 plus 1\8 plus -14\8

2 -13\8

2= 16/8

3\8?

You might be interested in

Does it make sense? In my data set of 10 exam scores, the mean turned out to be the score of the person with the third highest g

san4es73 [151]

Answer:

Yes

Step-by-step explanation:

Given that In my data set of 10 exam scores, the mean turned out to be the score of the person with the third highest grade.

No two people got the same score.

Let the scores be a,b,c,d,e in ascending order where no two scores are equal

If a+b=d+e =2c then we can have c as the mean of the scores of 5 persons

This is because

Total sum = a+b+c+d+e = (a+b)+c+(d+e)

= 2c+c+2c=5c

Average= 5c/5 = c

It makes sense and there are chances as long as the above condition is satisfied.

8 0

3 years ago

In what form is the following linear equation written? y-3=2/3(x-1)

lions [1.4K]

First we solve what we can solve.
y-3= 2/3(x-1)
We first multiply
y-3= 2/3 (x) - 2/3
Then we move the -3 and it becomes +3 on the other side
y= 2/3 (x) - 2/3 + 3
And we solve what we can to get our answer.
y= 2/3 (x) + 2 1/3

3 0

3 years ago

Read 2 more answers

1.What is the solution to the system of equations?

Ludmilka [50]

1. x=4, y=0
3. x=2.6666, y=0.3333

8 0

3 years ago

What is the value of y in the parallelogram below? G 108 3y D E

Arlecino [84]

Answer:

Step-by-step explanation:

In a parallelogram, consecutive angles are supplementary, sum to 180° , so

3y + 108 = 180 ( subtract 108 from both sides )

3y = 72 ( divide both sides by 3 )

y = 24 → C

5 0

3 years ago

The following data give the prices of seven textbooks randomly selected from a university bookstore.

swat32

Answer:

a) Mean = $121

Sum of deviations = $0

b) Standard deviation = 41.19

Variance = 1696.67

Range = $120

Step-by-step explanation:

We are given the following data:

$91 , $176 , $108 , $115 , $56 , $157 , $144

a) Mean and sum of deviations

$Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}$

$Mean =\displaystyle\frac{847}{7} = 121$

Sum of deviations =

-30 + 55 - 13 - 6 - 65 + 36 + 23 = 0

The sum of deviations is zero dollars.

b) range, variance, and standard deviation

$\text{Standard Deviation} = \sqrt{\displaystyle\frac{\sum (x_i -\bar{x})^2}{n-1}}$

where $x_i$ are data points, $\bar{x}$ is the mean and n is the number of observations.

Sum of square of differences =

900 + 3025 + 169 + 36 + 4225 + 1296 + 529 = 10180

$\sigma = \sqrt{\dfrac{10180}{6}} = 41.19\\\\\sigma^2 = 1696.67$

Sorted data: 56, 91, 108, 115, 144, 157, 176

Range = Maximum - Minimum

Range = 176 - 56 = 120

5 0

3 years ago