Find the value of x

Answer:

Step-by-step explanation:

Let the amount of gas be x gallons.

The product of gallons and MPG gives us the number of miles, show this as equation and solve for x:

After evaluating the expression for x=0, the equation (x-4)+12 = 8

⇒ ((0)-4)+12

⇒ -4 + 12

⇒ 8

To solve linear equations, utilize the steps that are provided below.

Lets take an example of solve z for 7z – (3z – 4) = 12

Here is no multiplication or division, so this will be easy to solve

⇒ 7z – (3z – 4) = 12

⇒ 7z – 3z + 4 = 12

⇒ 4z = 12 – 4

⇒ 4z = 8

⇒ z = 8/4

⇒ z = 2

See, that was so simple, using the mentioned methods, every linear equation can be solved easily.

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A right triangle with a right angle and two sharp angles that are congruent to one another is known as an isosceles right triangle.

A right triangle with a right angle and two sharp angles that are congruent to one another is known as an isosceles right triangle. A right triangle that is also isosceles is known as an isosceles triangle. It therefore has two sides that are identical and one right angle.

A right triangle with two equal-length legs is called an isosceles right triangle. The corresponding angles would also be congruent because the lengths of the two legs of the right triangle are equal. As a result, the two acute angles and two legs of an isosceles right triangle are congruent.  

Constructing triangles will consist of the development of various triangles the use of a protractor, a compass and a ruler.

Construction of triangles is straightforward while the measurements are given to us primarily based totally on extraordinary homes which include SSS, SAS and ASA.

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The number of apples that were bought by Joanna is 6 pounds.

Let p = the number of pounds of apples Joanna bought.

Let o = oranges

Therefore, the equation will be:

1.49p + 8o = 23.26

1.49p + 1.79 × 8 = 23.26

1.49p + 14.32 = 23.26

1.49p = 23.26 - 14.32

1.49p = 8.94

p = 8.94/1.49

p = 6

No. Joanna didn't buy a total of 5 pounds of apples at the farmers market.

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Answer:

The first one is the answer

Step-by-step explanation:

The hypothesis is the phrase following the word if = " The hypothesis is: You have a driver's license."

The conclusion is the phrase following the word then = " The conclusion is: You are at least 16 years old."

A specific, verifiable prediction of what the researcher(s) believe the study's results will be is known as a hypothesis (plural: hypothese). It is stated at the outset of the investigation.

Most often, this entails speculating on a potential correlation between two variables: the independent variable (what the researcher modifies) and the dependent variable (what the research measures).

The null hypothesis and the alternative hypothesis (known as the experimental hypothesis when the technique of examination is an experiment) are traditionally written as two separate forms of the hypothesis in research.

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Answer:

+ 10

Step-by-step explanation:

Answer:

Step-by-step explanation:

6x^2 - x - 13 = 0

6 * -13 = -78.

So, to factor this we need 2 integers whose product is -78 and whose sum is -1.

There are no such integers so we can't solve this by factoring.

Answer:

6.8Equils5 so the awnser is sas

Lets start with the basics. 12,765 books are in total. We need to take 398 from that. 12765 - 398 = 12367. That means x people returned the book to reach 12,479. 12,479 - 12367 = x. X = 112.

112

f (7) =  -65 is the output for the given input .

How can you tell whether a function is linear or not?

f(x)= -9 x-2

Put x = 7    ⇒   - 9  * 7  - 2

                ⇒   -63 - 2

                ⇒   -65

Therefore f (7) =  -65

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The complete question is -

Evaluate each function for the given value of x , and write the input x and output f(x) as an ordered pair.

f(x)=-9 x-2 for x= 7

The domain of the function is x < 2 and it is discontinuous at x = 2

The domain of a function is the range of input values to the function.

Given that the above function f(x) = √[(x² + 1)/(2 - x)]

The domain of the function is the range of values of x that make the denominator greater than zero

So, the domain is √(2 - x) ≥ 0

2 - x ≥ 0

2 ≥ x

x ≤ 2

So, the function is valid for x < 2 and discontinuous at x = 2 since at x = 2, √(2 - x) = √(2 - 2) = 0

So, we see that the function is valid for x < 2 and discontinuous at x = 2

So, the domain of the function is x < 2 and it is discontinuous at x = 2

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I used the Algebraic Method to solve the questions

The First functions are inverses but the Second set aren't

In linear equation, 4/3  is the solution for equation .

What is linear equation?

-x + 3/7 = 2x - 25/7

On solving

- 7x + 3/7 = 14x - 25/7

- 7x + 3 = 14x - 25

14x + 7x = 25 + 3

21x = 28

x = 28/21 = 4/3

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The probability of the outcome P(odd) is 1/2.

Probability is a measure of the likelihood of an event to occur. It can range in from 0 to 1, where 0 means the event to be an impossible one and 1 indicates a certain event.

We know that,

All outcomes in a die are 1,2,3,4,5, and 6.

Even outcomes = 2,4, and 6

Odd outcomes = 1,3, and 5

Hence,

Total number of odd outcomes = 3

Total number of outcomes = 6

We know that,

Probability of an event = Number of possible outcomes of the event/ Total number of outcomes

Therefore, we can write:-

Probability of the odd outcomes = 3/6 = 1/2

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The coordinates of the midpoint M are (-4,6)

Midpoint is the middle point of line segment. Measuring the distance between the two end points and divide the result by 2 this distance is known as midpoint of that line. Adding two end point of x and y and divide the sum by 2 we get coordinates of midpoint.

We can calculate the coordinates of midpoint by Midpoint formula

[tex]=\frac{x_1+x_2}{2},\frac{y_1+y_2}{2}[/tex],

Endpoints of AB are A(-8,5) and B(0,7)

[tex](x_1,y_1)=(-8,5) and (y_1,y_2)=(0,7)[/tex]

Put the value of x and y in the above formula we get

[tex]=(\frac{-8+0}{2}),(\frac{5+7}{2}\\ =(\frac{-8}{2}),(\frac{12}{2})\\ =(-4,6)[/tex]

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The first five terms of the sequence are 1,4,7,9,11.

A sequence is an enumerated group of items in mathematics where repetitions are permitted and order is important. It has members, just like a set does. The length of the sequence is determined by the number of items.

Given,

aₙ=a n₋₁ +2 n

For a1 = 1

a2 = 1 + 2.2 = 1 + 4 = 5

a3 = 1 + 2.3 = 1 + 6 = 7

a4 = 1 + 2.4 = 1 + 8 = 9

a5 = 1 + 2.5 = 1 + 10 = 11

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Answer:

y = - [tex]\frac{1}{6}[/tex] x + 3

Step-by-step explanation:

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = 6x + 3 ← is in slope- intercept form

with slope m = 6

given a line with slope m then the slope of a line perpendicular to it is

[tex]m_{perpendicular}[/tex] = - [tex]\frac{1}{m}[/tex] = - [tex]\frac{1}{6}[/tex] , then

y = - [tex]\frac{1}{6}[/tex] x + c ← is the partial equation of the perpendicular line

to find c substitute (- 6, 4 ) into the partial equation

4 = 1 + c ⇒ c = 4 - 1 = 3

y = - [tex]\frac{1}{6}[/tex] x + 3 ← equation of perpendicular line

The equation of the line in slope-intercept form passing through the point (1 , -1) and parallel to y = (2/5)x - 3 is y = (2/5)x - 7/5.

The equation of a line can be expressed in three different forms: standard form, slope-intercept form, and point-slope form.

The slope-intercept form of the equation of a line is given by the formula:

y = mx + b

where m is the slope of the line

b is the y- intercept

If the line is parallel to y = (2/5)x - 3, then their slopes are equal.

y = (2/5)x - 3 : m = 2/5

m = 2/5

Substitute the values of the slope and the point to solve for the y-intercept, b.

y = mx + b

-1 = 2/5(1) + b

b = -7/5

Write the equation of the line by plugging in the value of the slope and y-intercept.

y = mx + b

y = (2/5)x - 7/5

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Cola need 50 miles to drive to complete his trip.

Option A is true.

What is Distance?

The total movement of an object without any regard to direction is called distance.

Given that;

Cole is taking a 170-mile trip by car.

He drive for 2 hours with an average speed of 60 miles per hour.

Now, Distance cover in 2 hours with speed 60 miles per hour is calculated as;

Since, Distance = Speed x time

Hence, Distance = 60 x 2 = 120 miles.

So, Remaining speed to complete his trip = 170 - 120 = 50 miles.

Hence, Cola need 50 miles to drive to complete his trip.

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hi

As rental charges is contant and then price vary with time of location, then it's answer  C

25 + 5x = 30 + 2x

b ˜µ /ndf gn df/ng df/ng /dnf gn fdng

Answer:

28 pints

Step-by-step explanation:

1 gal= 8 pints

for reference: pint = gallon × 8

so,

3.5 gallons × 8 gives you 28.

Using linear equations, Sandi and Felipe have raised the same amount of money after 4 miles.

We can calculate using linear equations

Formulate based on the criteria stated: 30 +2.5 x x = 20 + 5 × x

Unknown terms should be moved to the left side of the equation:

2.5x-5x= 20-30

combining similar terms

-2.5x = 20 - 30

Determine the total or difference: 2.5x = -10

Subtract the coefficient of the variable from both sides of the equation: = -10 ÷ (−2.5)

Take the parenthesis out: 10 ÷ 2.5 =

Determine the quotient or product:

x = 4

find the outcome: = 4

Response: x = 4.

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Height of the volcano = 729

The elevation angle to the peak of the volcano is 23 degrees.

The surveyor goes 750 feet closer to the volcano, and the angle of elevation now equals 37 degrees.

It forms an ABC triangle.

Point A = the volcano's summit

Point B is the volcano's lowest point.

Point C = height of 23 degrees to the volcano

Point D = going 750 towards the volcano and establishing a 37-degree elevation angle

BD = ?

DC = 750

Tan 23 degrees AB/BC

Tan 23 degrees AB = BC

Tan 37 degrees AB/BD

Tan 37 degrees = AB

23 degrees BC Tan 37 degrees BD Tan

(BD +750)

BD (.7536-.4245) = 318.356

BD = 967.35

Height of the volcano = 729

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Answer:

B.

Fran's account balance > Zach's account balance

Step-by-step explanation:

The answer is 495

Step-by-step explanation:

If you need to add 5 more push-ups every day and find the total it would be 20+25+30+35+40+45+50+55+60+65+70=495

The assumptions for a chi square test for homogeneity are

In statistics, the chi square test is used to determine where there exists a relationship or association between two variables

Amongst other assumptions, the variables are assumed to be categorical variables.

This means that variables can be used as labels

The other assumptions are:

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Answer:

$9.9

Step-by-step explanation:

4 = $2.64

15= ?

15 × $2.64 = 39.6

39.6 ÷ 4 = $9.9

The first five terms of a geometric sequence with first term -100 and common ratio 1/5 are  -100, -20, -4, -4/5, -4/25

The given parameters:

a₁ = -100, r = 1/5

r is the common ratio, hence, the given sequence is a geometric sequence.

In a geometric sequence, the formula for the nth term is given by:

      a(n) = a(1) . rⁿ⁻¹

We can also find the terms using recursive formula. The nth term of a geometric sequence is equal to the (n-1)th term times the common ratio, r. Mathematically,

      a(n) = a(n -1) . r

Let us start from n = 1

a(1) = -100  (given)

a(2) = a(1) . r = (-100) . 1/5 = -20

a(3) = a(2) . r = (-20) . 1/5 = -4

a(4) = a(3) . r = (-4) . 1/5 = -4/5

a(5) = a(4) . r = (-4/5) . 1/5 = -4/25

Therefore, the first five terms are  -100, -20, -4, -4/5, -4/25

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