Mathematics College

PLS HELP ME WITH THIS

Answers

Answer 1

Equation of the line in slope-intercept form = y = 8x − 1

How to calculate the equation of the line?

Given:

Co-ordinates of the first line (x, y)=(0,-1), (1,7), (2,15), (3,23),(4,31)

We know that,

[tex]\text{slope }=m=\frac{y_2-y_1}{x_2-x_1}\\\\= > \frac{7+1}{1-0}\\\\=8[/tex]

The slope - intercept form of a line is given by,

y = mx + b ---(1)

Let us substitute ( x, y )= (0, -1) in (1)

-1 =(8)*0+b

-1= b

b = - 1 ----(2)

Let us substitute m and b in the slope-intercept equation (1)

y = 8x − 1

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Related Questions

Which of the following equations describes the line shown below? Check allthat apply.(-5,6)(-1,-1)

Answers

Options E and F are the correct options

Here, we need to get the equation of the line that passes through the two points given

Mathematically, the equation of a line can be generally expressed as ;

y = mx + c

where m is the slope of the line and c is the y-intercept of the lien ( where it crosses the y-axis)

To get the slope m , we are goint to use the formula below;

[tex]\begin{gathered} m=\frac{y_2-y_1}{x_{2\text{ - }}x_1} \\ \\ x_{1\text{ }}=-5,x_2=-1,y_1\text{ = }6,y_2\text{ = -1} \end{gathered}[/tex]

Substituting these values into the slope equation , we have

m = (-1-(6))/(-1-(-5)) = -7/4

The equation is now in the form;

y = -7x/4 + c

what is left is to get the y-intercept

We can get the value of the y-intercept by substituting for x and y using any of the points

Let us use the second point

Here, x = -1 and y = -1

Thus;

-1 = -7(-1)/4 + c

-1 = 7/4 + c

c = -1-7/4 = -11/4

So the complete equation of the line is;

y = -7x/4 - 11/4

To properly answer the questions, we need the forms in the options that looks like or can be manipulated arithmetically to look like what we have as our answer

We proceed with each of the options one after the other to see if they can be written in the form of our answer

Option A

y - 5 = -7/4 ( x + 6)

Opening the bracket and evaluating;

y - 5 = -7x/4 - 42/4

y = -7x/4 -42/4 + 5

y = -7x/4 -22/4

we can see this is not a correct option

Option B

y - 6 = -4/7 (x + 5)

Multiply through by 7

7y - 42 = -4x - 20

7y = -4x - 20 + 42

7y = -4x + 22

divide through by 7

y = -4x/7 + 22/7

We can see this is incorrect also

Option C

y - 1 = -4/7(x-1)

Multiply through by 7

7y - 7 = -4x + 4

7y = -4x + 4 + 7

7y = -4x + 11

divide through by 7

y = -4x/7 + 11/7

This is incorrect too

Option D

y + 1 = -4/7 ( x + 1)

Multiply through by 7

7y + 7 = -4x - 4

7y = -4x -4 -7

7y = -4x - 11

y = -4x/7 - 11/7

This is incorrect also

Option E

y - 6 = -7/4 (x + 5)

Multiply through by 4

4y - 24 = -7x - 35

4y = -7x - 35 + 24

4y = -7x -11

y = -7x/4 - 11/4

This is a correct option

Option F

y + 1 = -7/4 ( x + 1)

Multiply through by 4

4y + 4 = -7x - 7

4y = -7x - 7-4

4y = -7x - 11

y = -7x/4 - 11/4

This is a correct option too

A particle moves along the x-axis so that at time t\ge 0t≥0 its velocity is given by v(t)=3t^2-18t+15.v(t)=3t2−18t+15. Determine all values of tt when the particle is at rest.

Answers

When a particle is at rest, the velocity = 0. Therefore, we equate the v(t) term to zero (0)

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PLS HELP ASAP WILL GIVE BRAINLIST

Answers

The angles in the parallelogram is as follows:

a = 27°b = 55°c = 55°

How to find angles in a parallelogram?

A parallelogram is a quadrilateral with opposite sides equal to each other and opposite side parallel to each other.

The diagonal of a parallelogram bisect each other.

Therefore, the angles a, b and c in the parallelogram can be found as follows:

180 - 118 - 35 = a (sum of angles in a triangle)

180 - 153 = a

a = 27 degrees.

Therefore, let's find angle b.

62 + 63 + b = 180 (sum of angles in a triangle)

125 + b = 180

180 - 125 = b

b = 55 degrees

Let's find the angle c

Hence,

b = c (alternate angles)

Therefore,

c = 55 degrees.

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P = 1,000 m
X =
x m
150 m width

Answers

Answer:tiny bit confused what the question is asking

length=350

Step-by-step explanation:

perimeter =(length+width )x2

perimeter/2

1000/2=(length+width )

500=(length+width)

500-150=350length

Can you help me find the slope, y-intercept, and the equation based off this chart?

Answers

y-interceptis As given by the question

There are given that the value of x and y.

Now,

For finding the value of the slope, choose two-point from the given table

So,

Suppose the two points are:

[tex](1,\text{ 5) and (}3,\text{ 3)}[/tex]

Now,

From the formula of slope:

[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Where,

[tex]x_1=1,y_1=5,x_2=3,y_2=3[/tex]

Put all the above value into the given formula

So,

[tex]\begin{gathered} m=\frac{y_2-y_1}{x_2-x_1} \\ m=\frac{3_{}-5_{}}{3_{}-1_{}} \\ m=-\frac{2}{2} \\ m=-1 \end{gathered}[/tex]

Hence, the value of the slope is -1.

Now,

For the equation of the line that is based on the given chart, use two supposes point and the given slope.

So,

The two poin and slope is:

[tex](1,\text{ 5) and (3, 3) and m=-1}[/tex]

Then,

From the formula of two point form;

[tex](y-y_1)=m(x-x_1)[/tex]

Where,

[tex]x_1=1,y_1=5,x_2=3,y_2=3,\text{ m=-1}[/tex]

Then,

Put all the given value into the above formula

So,

[tex]\begin{gathered} (y-y_1)=m(x-x_1) \\ (y-5_{})=-1(x-1_{}) \\ (y-5)=-x+1 \\ y-5+x-1=0 \\ y+x-6=0 \end{gathered}[/tex]

Hence, the equation of the line is:

[tex]y=-x+6[/tex]

Now,

To find the y-intercept, put x=0 and solve for x

So,

The y intercept of the given equation is:

[tex]\begin{gathered} y=-x+6 \\ y=-(0)+6 \\ y=6 \end{gathered}[/tex]

Hence, the y-intercept is (0, 6)

The graphs below have the same shape. f(x) = x2What is the equation of the graph of g(x)?10g(x)f(x)X10510-10O A. g(x) = (x+3)2B. g(x) = (x - 3)2C. g(x) = x2 - 3D. g(x) = x2 + 3

Answers

The equation of f(x) is

[tex]f(x)=x^2[/tex]

The graph of g(x) is shifted 3 units to the left. This is a horizontal translation.

For horizontal translation, we follow the following rule >>>

Let parent function be f(x), then

• f(x+a) is the parent translated "a" units left

• f(x-a) is the parent translated "a" units right

Thus, following the rule, we can clearly say that g(x) = f(x+3)

We can write >>

find 5 consecutive odd integers who's sum is -45(solve algebraically)

Answers

let the consecutive odd integers be

x, x+ 1, x+ 2, x + 3, x + 4

Average = sum / total number

Average = -45

Total number = 5

-45 = x + x + 1 + x + 2 + x + 3 + x + 4 / 5

Introduce cross multiplication

-45 x 5 = x + x + 1 + x + 2 + x + 3 + x + 4

-225 = x + x + x + x + x + 1 + 3 + 4 + 5

-225 = 5x + 16

Please help I will mark branlist

Answers

Answer: True

Step-by-step explanation:

I believe it's true since a quadratic equation can either have one real solution, two real solutions, or no real solutions. Hope this helps.

Simplify using exponent: B³ x B⁵

HELPPPPPP

Answers

Answer:

B⁸

Step-by-step explanation:

When you have the same base, which in this case is B, you add the exponents and you get 8.

Hope this helps!

P.S, could I get Brainliest? Thanks!

Central Bank pays 8.5% interest, compounded daily, from the date of deposit to the date of withdrawal. The daily interest rate (to the nearest millionths place) forJuly 28 (92 days in the quarter) on this account is:0.000198.0.0002070.000231.0.000216None of these choices are correct.

Answers

ofGiven the yearly interest rate as 8.5%

To find the daily interest, we will divide the yearly interest rate by 365 as shown below:

[tex]\text{daily interest rate=}\frac{yearly\text{ interest rate}}{365}[/tex]

[tex]\text{daily interest rate=}\frac{\frac{8.5}{100}}{365}=\frac{0.085}{365}=0.0002328767[/tex]

Hence, the daily interest rate (to the nearest millionths place)= 0.000232, The third option

the three sided lengths are 7,8,9 classify the triangle as an acute obtuse or right triangle

Answers

Using the law of cosines to find m∠B:

[tex]\begin{gathered} b^2=a^2+c^2-2ac\cdot\cos (B) \\ 2ac\cdot\cos (B)=a^2+c^2-b^2 \\ \cos (B)=\frac{a^2+c^2-b^2}{2ac} \\ \cos (B)=\frac{8^2+7^2-9^2}{2\cdot8\cdot7} \\ \cos (B)=\frac{32}{112} \\ B=\arccos (\frac{32}{112}) \\ B=73.4\text{ \degree} \end{gathered}[/tex]

Since B is the largest angle (because it's opposite to the longer side), then angles A and C are smaller. In consequence, the three angles are smaller than 90°, which means that the triangle is acute

A backpack weighs 10 N. What is the mass of the backpack?

Answers

The mass of the backpack is 1.02 kilograms.

What is the mass of the backpack?

On earth, the weight of an object of mass M is given by:

W = M*g

Where g is the gravitational acceleration:

g = 9.8m/s^2

In this case, the weight is 10N, then we can write:

10N = M*9.8m/s^2

Solving this for M we get:

10N/(9.8m/s^2) = M = 1.02 kg

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Raina and Leila are driving separate cars to Boston. They begin the trip with full gas tanks. The amount of gas (in gallons) remaining in the tank of each car depends on the number of miles driven, as shown below.

Answers

(a) Leila's car, 2 gallons

At 150 miles, Raina's car has 9 gallons of gas and Leila's car had 11 gallons of gas.

(b) 300, Raina's car

The amount of gas remaining is when the graphs intersect.Since the graph for Leila's car is higher than the graph for Raina's car before 300 miles, Raina's car will have less gas.

(a) Leila's car, 2 gallons At 150 miles, Raina's car has 9 gallons of gas and Leila's car had 11 gallons of gas.

(b) 300, Raina's car The amount of gas remaining is when the graphs intersect.

What's the graph about?

(a) At 150 miles, Raina's car has 9 gallons of gas and Leila's car had 11 gallons of gas. This can be seen by looking at the graph of the two cars' gas levels. The graph for Leila's car is higher than the graph for Raina's car at this point, so Leila's car has more gas.

(b) The amount of gas remaining is when the graphs intersect. This happens at 300 miles. Since the graph for Leila's car is higher than the graph for Raina's car before 300 miles, Raina's car will have less gas at this point.

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confused on this please help!!

Answers

Answer:

12.75

Step-by-step explanation:

it is the same as the other side just like the similar triangle is.

Suppose that Kevin's checking account shows a balance of $910.25 at the beginning of the month. During this month, he makes deposits of $175.35, $472.25, $235.40, and $450.15, and he writes checks for $307.50, $289.25, $150.30, and $327.00. Find the end-of-the-month balance in his account.

Answers

Answer:

The answer is $1,169.35

Step-by-step explanation:

Deposits is when you put money into your account, so, you'll add what he deposits. which will be $2,242.4, Next when he writes a check it means he took money out of his account so you'll subtract. You'll add up the amount of checks he wrote and subtract your answer with the deposits so, $2,243.4, - $1,074.05 = 1,169.35 and thats how you get your answer.

Which of the following is the equation that represents the graph?

Graph of a line the passes through the points negative 3 comma 0 and 0 comma negative 2.

y equals negative two thirds times x minus 3
y equals negative three halves times x minus 2
y equals negative three halves times x minus 3
y equals negative two thirds times x minus 2

Answers

y equals negative two thirds times x minus 2 is the equation of graph.

What is slope of line?

The slope of the line is the ratio of the rise to the run, or rise divided by the run.

The given two points are 3 comma 0 and 0 comma negative 2.

i.e (3,0)(0,-2)1)

The formula for slope is (y₂-y₁)/(x₂-x₁)

slope = (-2 - 0) / (0 - 3)

= -2 / -3

The negative negative are multiplied we get positive

= 2/3

The standard form of a line is y = mx + b, where m is slope of line and b is y intercept.

slope(m) = 2/3

We can use either of points (0,-2)...x = 0 and y = -2

now sub and find b, then y intercept

-2 = 2/3(0) + b

-2 = b

so equation is : y = 2/3x - 2

Hence y equals negative two thirds times x minus 2 is the equation of graph.

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If a1 = 7 and an3an-1 + 4 then find the value of a4.

Answers

A1 = 7

An = 3A(n-1) + 4. According to this, A2 would be= 3*7 + 4 =25

A1 = 7, A2 = 25, then the difference is d = 18

The general formula for an aritmethic progression is An = A1 + (n -1)d

For A4 = 7 + (4-1)*18 = 61

negative 37 over 24 times j minus 17 over 12

negative 37 over 24 times j plus 17 over 12

43 over 24 times j plus 1 over 12

negative 43 over 24 times j plus negative 1 over 12

Simplify the expression.

the expression negative one eighth j plus two thirds minus the expression five thirds j plus nine twelfths

negative 37 over 24 times j minus 17 over 12
negative 37 over 24 times j plus 17 over 12
43 over 24 times j plus 1 over 12
negative 43 over 24 times j plus negative 1 over 12

Which expression is equivalent to 3(−4.5b − 2.1) − (6b + 0.6)?

19.5b + 1.5
−19.5b − 1.5
−19.5b − 6.9
19.5b − 6.9

Answers

The Simplification of the expression negative one eighth j plus two thirds minus the expression five thirds j plus nine twelfths is "negative 43 over 24 times j plus negative 1 over 12". option D

The expression which is equivalent to 3(−4.5b − 2.1) − (6b + 0.6) is −19.5b − 6.9. option c

Simplification of fraction

negative one eighth j plus two thirds minus the expression five thirds j plus nine twelfths

= -1/8j + 2/3 - (5/3j + 9/12)

= -1/8j + 2/3 - 5/3j - 9/12

= -1/8j - 5/3j + (2/3 - 9/12)

= (-3j-40j / 24 + (8-9) / 12

= -43/24j + (-1)/12

The expression equivalent to 3(−4.5b − 2.1) − (6b + 0.6)

open parenthesis

= -13.5b - 6.3 - 6b - 0.6

collect like terms

= -13.5b - 6b - 6.3 - 0.6

= - 19.5b - 6.9

So therefore, the equivalent expression to 3(−4.5b − 2.1) − (6b + 0.6) is - 19.5b - 6.9

Answers

The inequality that can be used to determine the minimum number of set of forks Nakeisha should buy is xx ≥ (566 - 188) / 8.

What is the minimum set of forks she should buy?

The first step is to determine the appropriate inequality signs that can be used.

> means greater than

< means less than

≥ means greater than or equal to

≤ less than or equal to

The inequality sign that would be used is ≥.

The form of the inequality is: xx ≥ (least number of forks needed - forks they current have) / number of forks in one set

xx ≥ (566 - 188) / 8

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Answer:

566 < 188 + 8x

Step-by-step explanation:

First person to help gets brainliest!!

Answers

The value of x from the equation represented by the given bar diagram is 20.

The equation is represented using the bar diagram and from the bar diagram be can observe that the equation will be the following equation mentioned below:

3.5 x + 12.5 x = 320 equation 1

The bar diagram represents 3.5 x + 12.5 x = 320 equation. Now we will simplify this equation and will find the value of x from this equation. The steps that need to be followed to simplify this equation are shown below;

3.5 x + 12.5 x = 320

16 x = 320

Divide both sides of equation by 16 , we will get

x = 320/16

x = 20

The value of x from the equation 3.5 x + 12.5 x = 320 is 20.

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Solve for m.m- 15 = 20

Answers

Answer:

m=35

Explanation:

Given the equation:

[tex]m-15=20[/tex]

We solve for the value of m by adding 15 to both sides.

[tex]\begin{gathered} m-15+15=20+15 \\ m+0=35 \\ m=35 \end{gathered}[/tex]

The value of m is 35.

First add 15 from both sides.
The result will be m=35

Hey there Ms or Mr, could you please help me out with this problem? Just a head up, this my homework for today not a quiz. it's about Trapezoids.

Answers

We have to relate the angles of the trapezoid in order to find the measure of BAD.

Given:

[tex]\begin{gathered} AB\mleft\Vert DC\mright? \\ AD\cong BC \end{gathered}[/tex]

Then

[tex]\begin{gathered} \angle BAD\cong\angle ABC \\ \angle ADC\cong\angle BCD \end{gathered}[/tex]

The angles are congruent because if AD and BC are congruent, and the lines are parallel, they sides will form the same angles.

Also, as the segment AD is "cut" by two parallel lines, the angles BAD and ADC are consecutive interior angles and are, therefore, supplementary.

Then, we can write:

[tex]\begin{gathered} m\angle BAD+m\angle ADC=180\degree\text{ and }\angle ADC=\angle BCD \\ \Rightarrow m\angle BAD+m\angle BCD=180\degree \\ 2x+(3x-5)=180 \\ 5x-5=180 \\ 5x=180+5 \\ 5x=185 \\ x=\frac{185}{5} \\ x=37 \end{gathered}[/tex]

Now, with the value of x, we can calculate the measure of BAD as:

[tex]m\angle BAD=2x=2\cdot37=74\degree[/tex]

Answer: the measure of BAD is 74°.

How many pairs of parallel edges are there this rectangular prism

Answers

Answer:

6 i think

Step-by-step explanation:

if you count the top and bottom one, thats 2, the two sides, and the front and back. add 2+2+2 which is 6.

how many 4 letter code words can be made using the letters in the word pencil

Answers

Combination is a way of selecting items from a collection where the order of selection does not matter.

The number of 4-letter code words that can be made using the letters in the word pencil is 15.

What is combination?

Combination is a way of selecting items from a collection where the order of selection does not matter.

We have,

Total number of letters in the word pencil = 6

i,e P E N C I L

Combination formula:

[tex]^nC_r[/tex] = [tex]\frac{n!}{r!(n-r)!}[/tex]

Here,

n = 6

r = 4

The number of 4-letter code words that can be made using the letters in the word pencil:

[tex]^6C_4[/tex] = 6! / 4! 2! = (6 x 5) / 2= 15

Thus,

The number of 4-letter code words that can be made using the letters in the word pencil is 15.

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I'll give brainliest!!

Answers

1. 1/y squared
2. Y of the power of 4
3.Y of the power of 9
4.Y of the power of 6

Please help with this problem

Answers

Answer:

The answer is I think 16

Step-by-step explanation:

You can look at the figure beside andfind this answer

#8.Verify algebraically if the function is even, odd, or neither

Answers

g(x)= x^4 √(1+x)

g(-x) = (-x)^4 √1-x

g (-x) = x^4 √1-x

Since the obtained function is not the same or the opposite it is neither.

|-102.06|
Find the absolute value

Answers

Answer:

102.06

Step-by-step explanation:

Absolute values are always positive

Answer:

Step-by-step explanation:

102.06

Absolute value is just the positive of any value.

Hope this helps! Have a nice day!

I want answer. I need t’s solution.And I want explanation too.

Answers

we have the equation

[tex]log(\frac{1,000}{253.95})=12tlog(1+\frac{0.08}{12})[/tex]

Solve for t

That means

Isolate the variable t

[tex]t=\frac{log(\frac{1,000}{253.95})}{12log(1+\frac{0.08}{12})}[/tex][tex]t=17.2[/tex]

What is a(b(x)) if a(x) = 3x 2 and g(x) = -3x + 1?

Answers

The equivalent composite function is expressed as -9x + 5

Composite functions

Composite functions are also known as function of a function.

Given the following functions:

a(x) = 3x+2 and

b(x) = -3x + 1

Determine the value of a(b(x))

a(b(x)) = a(-3x+1)

a(b(x)) = 3(-3x+1) + 2

a(b(x)) = -9x + 3 + 2

a(b(x)) = -9x + 5

This gives the equivalent composite function.

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