Consider the quadratic equation x2=4x-5. How many solutions does the equation have

Answers

Answer 1
the quadratic formula is =(-b+-sqrt(b^2-4ac))/2a
as you notice the term under the square root is b^2-4ac if it is postive then the equation clearly will have two real soultions if it is negative then the equation will have two imaginary soultion if it is zero then the the equation will have one soultion
so let us calculate b^2-4ac for our given equation
x^2=4x-5 so let us write it in general form which is ax^2+bx+c=0
subtracting 4x from both sides
x^2-4x=-5
adding 5 to both sides
x^2-4x+5=0
a=1,b=-4,c=5
b^2-4ac=(-4)^2-4(1)(5)=16-20=-4
which means the equation has two imaginary soultions
Answer 2
[tex]\bf x^2=4x-5\implies x^2-4x+5=0 \\\\\\ \begin{array}{lcccll} & 1 x^2& -4 x& +5&=0\\ &\uparrow &\uparrow &\uparrow \\ &a&b&c \end{array} \\\\\\ discriminant\implies b^2-4ac= \begin{cases} 0&\textit{one solution}\\ positive&\textit{two solutions}\\ negative&\textit{no solution} \end{cases}[/tex]

now, plugging in those values for the discriminant, we'd get

(-4)² - 4(1)(5).

Related Questions

if the parent function is square root of x, describe the translation of this function square root x+7

Answers

The function [tex] y=\sqrt{x} [/tex] sits with its starting point at the origin. The function [tex] y=\sqrt{(x-h)}+k [/tex] is translated h units to the left or right and k units up or down. Since our radicand, the value under the square root sign, is x+7, putting that into our standard form it would be x-(-7) because minus a negative is a positive. So we move the parent graph to the left (-7 moves to the left) 7 units. There is no number k so our function is not moving up or down. Only to the left 7.

Lisa and Frank shared 1/3 pound of cherries equally what fractional part of a pound did each person receive?
Answer: 0.3333

Part A.
Molly wrote the following quotation to solve the problem: 2 . 1/3 = n.
Do you agree with Molly's equation? Support your answer with information from the problem.

Answers

If there are 2 people sharing 1/3 lb, the answer is not 0.3333. 

1/2 * 1/3 = 1/6 = 0.167

1/2 * 1/3 = n = 0.167

Answer with explanation:

1)

If we divide 1/3 pounds equally among two people then each of them will get a share of:

[tex]\dfrac{1}{2}\times \dfrac{1}{3}\\\\=\dfrac{1}{6}\\\\=0.1666\ pounds[/tex]

Hence,the given answer that each will get 0.3333 pounds is incorrect.

2)

Molly wrote the following quotation to solve the problem: 2 . 1/3 = n.

This is an incorrect equation since this equation does not represent the half share of 1/3 pounds.

It represents the double amount of 1/3 pounds.

Kat has 19 coins, all quarters and dimes, that are worth a total of $4. The system of equations that can be used to find the number of quarters, q, and the number of dimes, d, she has is shown.

q + d = 19
0.25q + 0.1d = 4
How many quarters does she have?

4
5
14
15

Answers

the answer will be 14

Final answer:

To find the number of quarters, solve the system of equations. Kat has 14 quarters.

Explanation:

To find the number of quarters Kat has, we can solve the system of equations given. The first equation states that the number of quarters (q) and the number of dimes (d) add up to 19.

The second equation represents the total value of the coins, where each quarter is worth $0.25 and each dime is worth $0.10.

By solving this system of equations, we can determine the value of q, which represents the number of quarters.

Using the first equation, we can solve for d by subtracting q from both sides: d = 19 - q.

Substituting this value of d into the second equation, we get: 0.25q + 0.1(19 - q) = 4.

Solving this equation, we find q = 14. Therefore, Kat has 14 quarters.

Learn more about system of equations here:

https://brainly.com/question/21620502

#SPJ5

The length of a rectangle is 3 times the width. The difference between the length and the width is 8 feet. Determine the rectangle's length

Answers

l=length h=width
l=3h
l-h=8
3h-h=8
2h=8
h=4
Then l=3h=3×4=12

The length of the rectangle will be 12 units.

What is a rectangle?

The rectangle is a geometrical figure in which opposite sides are equal.

The angle between any two consecutive sides will be 90 degrees.

Area of rectangle = length × width.

Perimeter of ractangle = 2( length + width).

Let say,

Length = l   and   width = w

Given,

length of a rectangle is 3 times the width

l = 3w

The difference between the length and the width is 8 feet

l - w = 8

By equation 1 and 2

3w - w = 8

2w = 8

w = 4

Substitute into equation 1

l = 3(4)

l = 12 units.

So the length of the rectangle will be 12 units.

For more about rectangles,

https://brainly.com/question/15019502

#SPJ5

Find the new amount given the original amount and the percent amount 810 songs; 130% increase

Answers

130% of 810

Let's break this down. We need to find 100% and 30% of 810 and add those two numbers to the original number of 810.

STEP 1:
Find 100% of 810
=100% * 810
=1.00 * 810
=810

STEP 2:
Find 30% of 810
=30% * 810
=0.30 * 810
=243

STEP 3:
Add to Original #:
Original # + (100% # + 30% #)
=810 + (810 + 243)
=810 + 1053
=1863

130% of 810 is 1863.

Hope this helps! :)

Could you please help me out ?

Answers

1. The sum of the interior angles of a triangle is 180º, so we have:
 
 m∠K= 180º-58º-38º
 m∠K= 84º 
 
 2. If we draw a perpendicular segment from "K" to "k", we will obtain two right triangles and we can find the value of "k".
 
 3. Let's find the heigh ot these two triangles (The perpendicular segment from "K" to "k", which we will call "y"):
 
 Sen(α)=Opposite leg/Hypotenuse
 Sen(58º)=y/2.3
 y=2.3xSen(58º)
 y=1.95 units
 
 4. Now we must find the adjacent leg of the triangle on the left:
 
 Cos(α)=Adjacent leg/Hypotenuse
 Cos(58º)=Adjacent leg/2.3
 Adjacent leg=1.21 units
 
 5. Let's find the adjacent leg of the other triangle:
 
 Tan(38º)=Opposite leg/Adjacent leg
 Adjacent leg=2.49 units
 
 6. The lenght of "k" is:
 
 k=2.49 units+1.21 units
 k=3.7 units
 
 7. The length KL is:
 
 Cos(38º)=Adjacent leg/Hypotenuse
 Cos(38º)=2.49/KL
 KL=2.49/Cos(38º)
 KL=3.15 units
 KL≈3.2 units

What is the equation of the line that contains the points (3, –6) and (–3, 0)?
A.
y = x – 3
B.
y = –x – 3
C.
y = –x + 3
D.
y = x + 3

Answers

Consider this option:
Common equation for the line is 'y=kx+b', where k&b - numbers, x&y - coordinates.
1) using the points it's possible to make up the system of equations:
[tex] \left \{ {{-6=3k+b} \atop {0=-3k+b}} \right. \ =\ \textgreater \ \ \left \{ {{3k+b=-6} \atop {-3k+b=0}} \right. [/tex]
b=-3 and k=-1
2) y=-x-3
Answer: B.

To determine the equation of a line given two points, calculate the slope and then use one point to write the equation in slope-intercept form. The equation of the line through (3, -6) and (-3, 0) is B. y = -x - 3.

To find the equation of the line that contains the points (3,
-6) and (
-3, 0), we need to calculate the slope (m) of the line using the slope formula:

m = (y2 - y1) / (x2 - x1).

Plugging in the given points:

m = (0 - (-6)) / (-3 - 3)

m = 6 / -6

m = -1.

With the slope now known, we can use one of the points and the slope to write the equation of the line in point-slope form (y - y1) = m(x - x1) and then convert it to slope-intercept form (y = mx + b). Let's use the point (-3, 0):

y - 0 = -1(x + 3)

y = -1x - 3.

Therefore, the correct equation of the line is B. y =
-x - 3.

Help!!!!!!!!!!!!!!!!!!!!!!!


please ty

c:

Answers

Use the formula for the area of a triangle, and fill in the given information.
.. A = (1/2)*b*h
.. 36 in^2 = (1/2)*b*(9 in)
.. (72 in^2)/(9 in) = b . . . . . . . . multiply by 2, divide by 9 in
.. 8 in = b

The base is "none of the above", 8 inches.

_____
This question has a couple of problems:
.. 1) area is not measured in "inches"; it is measured in "square inches."
.. 2) ALL of the offered answer choices are INCORRECT.

Determine the rigid transformations that will map ΔABC to ΔXYZ.

a. Translate vertex B to vertex Z; reflect ΔABC across side AB.
b. Translate vertex X to vertex C; rotate ΔXYZ to align the sides and angles.
c. Reflect ΔABC across side AB; translate vertex C to vertex X.
d. Translate vertex X to vertex A; rotate ΔXYZ to align the sides and angles.

Answers

Solution: The correct option is d, i.e., Translate vertex X to vertex A; rotate ΔXYZ to align the sides and angles.

Explanation:

we know that the sum of angles of a triangle is always [tex]180^{\circ}[/tex]. In ΔXYZ,

[tex]\angle X +\angle Y +\angle Z=180^{\circ}[/tex]

[tex]35^{\circ} +\angle Y +47^{\circ}=180^{\circ}[/tex]

[tex]\angle Y +82^{\circ}=180^{\circ}[/tex]

[tex]\angle Y =98^{\circ}[/tex]

In both triangles it is noticed that the sides AC and XZ are equal. In given triangles [tex]\angle A =\angle X=35^{\circ}[/tex] and [tex]\angle B =\angle Y=98^{\circ}[/tex].

By AAS rule of congruence ΔABC and ΔXYZ are congruent triangles, therefore we can transform ΔABC to ΔXYZ. For the transformation of ΔABC to ΔXYZ translate the vertex having same angle and rotate the triangle to align the sides and angles.

Since vertex X and vertex A have same angle, therefore we translate vertex X to vertex A and rotate ΔXYZ to align the sides and angles.

Hence the correct option is d.

Answer: d

Step-by-step explanation:

when an aircraft takes off, it accelerates until it reaches its takeoff speed V. in doing so it uses up a distance R of the runway, where R is proportional to the square of the of the takeoff speed. if V is measured in miles per hour and R is measured in feet, then 0.1639 is the constant of proportionality. if an aircraft has a takeoff speed of about 215 miles per hour, how much runway does it need?

Answers

Answer: 36.22 feet

Explanation:

Two quantities are proportional if and only if their ratio is constant. Since V and the square of R are proportional, then the ratio of V to the square of R is constant. In terms of equation:

[tex] \frac{V}{R^2} = k[/tex]

For some constant k.

Since the constant of proportionality is equal to 0.1639, k = 0.1639. Moreover, since the takeoff speed of the aircraft needs to be 215 miles per hour, the runway needed is will be obtained by solving for R in the following equation:

[tex]\frac{V}{R^2} = k \\ \\ V = kR^2 \\ \\ R^2 = \frac{V}{k} \\ \\ R = \sqrt{\frac{V}{k}} \\ \\ R = \sqrt{\frac{215}{0.1639}} \\ \\ \boxed{R = 36.22 \text{ feet}} [/tex]

Hence, a runway of 36.22 feet is needed for the aircraft to have a takeoff speed of 215 miles per hour.

 

What is the GCF of 14x^2 and 4xy? A. 10x B. 28x^2y C. 2x2 D. 2x

Answers

greatest common factor is the largest number you can factor out of both.

14x^2 and 4xy

answer is D. 2x

What is the inverse of f(x) 3^sqrt x-4

Answers

well, you need the equationL: y=3+√x−8. than order to find the inverse function, we have to switch the variables x and y and then solve for y..

The inverse of f(x) = ∛(x-4) is  f(x)³ + 4.

What is inverse of function?

The output of a function is returned by the inverse function, which also returns the initial value. Consider the inverse relationship between the functions f and g: f(g(x)) = g(f(x)) = x. The initial value is fetched via a function that is its inverse.

Given:

We have the equation,

f(x) = ∛(x-4)

Let y = ∛(x-4)

In order to find the inverse function, we have to solve for y :

y =  ∛(x-4)

y³ = (x-4)

x = y³ + 4

or, x = f(x)³ + 4

Therefore,  f(x)³ + 4 is the inverse function.

To learn more about the inverse of function;

https://brainly.com/question/17872426

#SPJ3

10 points!!!

Todd Gunderson went into a partnership with two of his friends. Manny and Jose, to share a route delivering newspapers. Manny owns 1/4 of the partnership, while Jose has a 1/5 interest. If the partnership's monthly revenue amounts to $765, how much of that is Todd's? Round to the nearest cent.

Answers

To solve you must find how much of the route todd has and multiply that by the total revenue.

Todd + Manny + Jose = 1

X + 1/4 + 1/5 = 1 

Change fractions to decimals for easier solving

x +.25 +.20 = 1

combine like terms

x+ .45 = 1

Subtract .45 from both sides

x=.55 

todd has 55% of the shares

Revinue * Todd's Percent = Todd's Shares
765*.55 = 420.75 

A company has determined that the number of items it sells varies inversely as the price of the item. If 20,000 items can be sold if the price is $9.50, how many items can be sold of the price is $8.75? Round your answer to the nearest whole number.

Answers

Let N be the number of items sold and p the price. 
Since the variation is inverse, then the relation between N and p is:
[tex]N=k\dfrac{1}{p}[/tex]
For N=20000 and p = $9.5, we get the formula:
 [tex]20000=k\dfrac{1}{9.5}\\p=20000\times9.5=190000[/tex]
If p = 8.75, then the number of items sold can be computed using the formula:
[tex]N= 190000\dfrac{1}{8.75}=21714 \text{ total items}[/tex]

Find the probability when a couple has 6 children at at least one of them is a boy

Answers

Try this solution:
1. Probability (P): 1-[probability_all_the_girls]
2. P=1- 1/2⁶=1- 1/64=63/64≈0.984375.

Note: P_all_the_g=[needed_cases]/[all_possible_cases], where needed cases=1 (all the girls means 'gggggg'), and all possible cases=2⁶=64 (all possible cases means 'gggggg';'bbbbbb';gbbbbb';'ggbbbb';'gggbbb';'ggggbb';gggggb';'bggggg', etc. Total 64 combinations.)

The probability when a couple has 6 children at at least one of them is a boy is 63/64

First step

Probability  of all 6 girls=(1/2)^6

Probability  of all 6 girls = 1/64

Second step is to determine the probability at least one of them is a boy

Let at least one boy means not all girls

Hence:

P(all girls)+P(not all girls)=1

P(at least 1 boy)=1-P(all girls)

P(at least 1 boy)=1-1/64

P(at least 1 boy)=63/64

Inconclusion The probability when a couple has 6 children at at least one of them is a boy is 63/64

Learn more here:

https://brainly.com/question/23044118

Use the following figure to answer the question. 1 and 4 are _____ angles. corresponding vertical supplementary adjacent

Answers

The two angles are vertical angles because they are on opposite sides of two intersecting lines.
Hope this helps! Have a blessed day!

Answer:

vertical angles

Step-by-step explanation:

We need to identify ∠1 and ∠4 are which type of pair of angles .

Since we are given the options :

1, correspoding angles: Corresponding Angles

When two lines are crossed by another line (which is called the Transversal), the angles in matching corners are called corresponding angles.

2. vertical angles : The angles opposite each other when two lines cross. They are always equal.Vertical" refers to the vertex (where they cross), NOT up/down

3. supplementary angles : Two Angles are Supplementary when they add up to 180 degrees

4. adjacent angles:Two angles are Adjacent when they have a common side and a common vertex (corner point) and don't overlap.

Thus according to definitions ∠1 and ∠4 are vertical angles

There is 12/15 of a pizza left. How many 3/10 pieces can be made from the leftover pizza? Show work please!

Answers


How many 1/3 pieces can be made from 2 pizzas, we know it is 6 and it is arrived by dividing 2 by 1/3 or multiplying by its reciprocal 3/1.

Hence to find how many 3/10 pieces can be made from 12/15 pizza, we have to divide 12/15 by 3/10 or multiplying by its reciprocal 10/3, i.e.

12/15 times 10/3= 8/3 or 2  2/3 

What does that mean? This means that while 2 three-tenths pieces can be made, 2/3of 3/10 i.e. 2/3×3/10=2/10=1/5 or one-fifth of pizza will be left out.

So the answer is 2 three-tenths pieces can be made, and one-fifth pizza will be left out.

Answer: it would be 2 3/10 pieces will be left over

The can of wood stain is twice as wide but half as tall as the can of paint. What is true about the areas of their labels?

Answers

In this case the areas would be exactly the same. To prove this, think of a can of stain as 4 inches wide by 6 inches tall/long. If the can of paint is 8 inches wide and 3 inches tall/ long, both areas would be 24 inches squared. By cutting one dimension in half and doubling the other dimension, you do not change the overall area.

Answer:

Astain = Apaint

..........................................................................................................

Step-by-step explanation:

Which of the following terms are like terms
A. 2a and 2x
B. 6xy and -16xy
C. X and x^2
D. 2x and 3xy


Answers

The answer is B) 6xy and -16xy
B. 6xy and -16xy because the variables are both the same 

Annie's cafe borrows $6100 at 6% for 290 days. Find the total amount that must be repaid after 290 days. (Use a 365 day year.)

Answers

If its 6% interest, then the answer would be $6,466. You would do this by multiplying 0.06 to 6100 and adding the product (366) to 6100.

General Idea:

The formula to find the Amount 'A' that need to be paid after ' t ' years for a Principal ' P ' with a annual rate of interest ' r ' is given below:

[tex] A= P(1+r \cdot t) [/tex]

Applying the concept:

Annie's cafe borrows $6100 at 6% for 290 days.

From the above statement we can conclude,...

[tex] P= \$6100\\ \\ r=6\%\\ \\ t=\frac{260}{365} [/tex]

Substituting the values of P, r and t in the formula, we get...

[tex] A=6100 \cdot (1+6 \% \cdot \frac{260}{365} )\\ \\ A=6100(1+\frac{6}{100} \cdot \frac{260}{365} )=6100(1+\frac{1560}{36500} ) \approx 6361 [/tex]

Conclusion:

The total amount that must be repaid after 290 days is approximately [tex] \$6361 [/tex]

How long will it take for a sum of money, invested at 5% compounded annually, to double in value?

Answers

Using the compound interest formula, where n=number of years,
2x=x(1+0.05)^n
(1.05)^n=2
=> 
n=log(2)/log(1.05)=14.21 years

Note: This problem can also be solved in the head using the rule of 72.
Since the amount is doubled at an interest rate of 5%, the time needed is 72/5=14 years, approximately.

To determine the time needed for an investment to double at a 5% compounded annual rate, apply the Rule of 72 by dividing 72 by the interest rate, resulting in approximately 14.4 years.

The question pertains to the time it takes for an investment to double in value with compound interest. To calculate this, we can use the Rule of 72. This rule states that you can approximate the number of years it'll take for an investment to double by dividing 72 by the annual interest rate. In this case, with a 5% interest rate, it would be calculated as 72 \/ 5, which equals approximately 14.4 years.

Here's a step-by-step explanation:

Apply the Rule of 72 by dividing 72 by the interest rate: 72 ÷ 5 = 14.4.

Therefore, it will take roughly 14.4 years for the sum of money to double at an annual compounded interest rate of 5%.

This is a quick and efficient way to estimate the power of compound interest and make informed investment decisions.

Janice makes 4 pizzas for dinner. There are 5 people to eat dinner. How much will each person get to eat?

Answers

Hello!

Divide the number of pizzas Janice makes by the number of people who will eat dinner.

4 ÷ 5 = 0.8

Each person will get to eat 0.8 of the pizza.

After 5 months, the number of subscribers to a newspaper was 5,730. After 7 months, the number of subscribers to the newspaper was 6,022. Which equation models the number of newspaper subscribers y after x months? y = –146x – 5,000 y = 146x + 5,000 y = 146x – 5,000 y = –146x + 5,000

Answers

From the information given in the problem we can create a linear model like this: The [tex]x-axis[/tex] will represent the months and the [tex]y-axis[/tex] the subscribers. From the problem we know that after 5 months, the number of subscribers to a newspaper was 5,730, so [tex] x_{1} =7[/tex] and [tex] y_{1} =5730[/tex]. We also know that after 7 months, the number of subscribers to the newspaper was 6,022, so [tex] x_{2} =7[/tex] and [tex] y_{2} =6022[/tex].
Remember that the slope of a line is [tex]m= \frac{y_{2}-y _{1} }{ x_{2} - x_{1} } [/tex]. since we already found those values, lets replace them to find our slope:
[tex]m= \frac{6022-5730}{7-5} [/tex]
[tex]m= \frac{292}{2} [/tex]
[tex]m=146[/tex]

To create our linear model we are going to use the point-slope equation [tex]y- y _{1} =m(x- x_{1} )[/tex]. Notice that we have all the values, so the only thing left is plug them in our equation: 
[tex]y-6022=146(x-5)[/tex]
[tex]y-5730=146x-730[/tex]
[tex]y=146x-730+5730[/tex]
[tex]y=146x+5000[/tex]

We can conclude that the equation which models the number of newspaper subscribers [tex]y[/tex] after [tex]x[/tex] months is [tex]y=146x+5000[/tex]

In △DEF, DE = 5 and m∠F=55. Find FE.

Answers

check the picture below.

make sure your calculator is in Degree mode.
SOH CAH TOA

tan(55°) = 5/(FE)
FE = 5/tan(55°)
FE = 3.5

trapezoid: b1=3 m;b2 =4m A= 7 m2 What is the missing
dimension

Answers

you are missing the height 

What is the area of this figure?
Enter your answer in the box.

PLEASE HELP ASAP!!! IF CORRECT YOU WILL GET 10 POINTS AND MARKED AS BRAINLIEST AS SOON AS I CAN!!!

Answers

Try this solution:

1. The final formula for the area of the figure is: A=A₁+A₂, where A₁ - the area of the square (its side is 18m) and A₂ - area of the triangle (the base is (8+18)m., height is 16 m.)

2. Using all the data in the formula above:

A=18*18+0.5*16*(8+18)=324+8*26=324+208=532 m².


answer: 532

If P(x) = 0.25, find the complement

Answers

we know that

complement = [1-original]---------------> [1-0.25]=0.75

the answer is 0.75

The gandhara region is the home of many portrayals of ____.

Answers

BUDDHA. It is a cold climate region where many BUDDHA carvings, with simplistic  garments and appearance can be seen. This also exemplifies Gandhara art work that is usually influenced by roman empire.

Which undefined term is needed to define an angle????

Answers

POINT WASNT AN OPTION ON MY TEST. THE ANSWER WAS PLANE. THE ANSWER CAN BE POINT, LINE, OR PLANE.

Answer:

Line

Step-by-step explanation:

A line is a undefined term used to define a angle. An angle is the corner that is created where two non-parallel lines meet/ intersect

A repairman charged $93.06. the price included 2 hours of labor and a $40 serive charge how much does the repaiman charge per hour for labor?

Answers

93.06 - 40 = 53.06
53.06 / 2 = 26.53 per hour
93.06 - 40 = 53.06

53.06/2 = 26.53

The answer should be $26.53 per hour of labor
Other Questions
Robin's scores: 99, 108, 102, 107, 119 mean = 107; mad = 5.2 evelyn's scores: 125, 137, 138, 145, 145 mean = 138; mad = 5.6 explain what the mean absolute deviation is in general. explain what the mad means in the context of robin and evelyn's data. I need the answer to the blank questions An apple ipad and a microsoft surface are examples of ________ computers. Which is not a way that advertisements promote alcohol?A.drinkers as healthyB.negative side effects on drinkersC.drinkers as successfulD.drinkers as athletic Which sentence contains a correctly used relative pronoun?A) My sister, that lives in Milwaukee, is going to law school. B)That assignment, which was due today, was very difficult. C) I knew which she would never finish the race. D)My friend that wants to be a doctor is named Cameron. Fractions must have a common denominator in order to subtract them. TrueFalse This image was most likely taken in which of the following locations?A) Sierra MadresB) Central PlateauC) Yucatn PennsulaD) Mexico City Which of the following pieces of information would likely be found on a economic activity map The residents of a city voted on whether to raise property taxes. The ratio of yes votes to no votes was 4 to 3 . If there were 2817 no votes, what was the total number of votes? Educators and parents debate the possibility of allowing cell phones in classrooms during school hours. Educators believe that allowing phones, especially more advanced models, in class would be too distracting for most students. Many also state that it would be too tempting for students to cheat, especially with increased pressure for higher grades and test scores. However, parents argue that they need to be able to reach their children in emergency situations. In your opinion, should cell phones be banned in classrooms? In your essay, take a position on this question. You may write about either of the two points of view given, or you may present a different point of view on this question. Use specific reasons and examples to support your position. A truck has a full 50-gallon gas tank. It uses 7 1/4 gallons on the first part of its journey, 13 1/2 gallons on the second part of its journey, and 15 1/4 gallons on the third part of its journey. How many gallons of gas remain in the gas tank? A certain human red blood cell has a diameter of 0.000007 meters. Write an expression that represents this diameter, in meters in scientific notation. Betty earns $7.50 per hour at a part time job. Let x be the number of hours and y be the amount she earns. Betty makes a graph to show how x and y are related. If she earns $60, how many hours did she work? what direction is 45 degrees in clockwise from due east? Th the characteristics of stress response that refers to the length of time the behavior continues to occur after the initial event is a efficiency B stress C duration D intensity What is the volume of a cube with length 4 inches? in3 a/b b/2a or a0, b0So a/b is a fraction. Then multiply by b/2a.The a's and the b's aren't equal to zero John sees others being praised for using good penmanship and now he attempts to use good penmanship. this behavior is reflective of ________ learning. What brought great wealth and power to Italian city-states in the 14th century? A.Discoveries by the Catholic Church B.Access to trade routes C.The invention of the printing press D.Conquests by feudal lords The word hay best translates to __________.