A teacher graded s 27 tests in 3 hours. Do these quantities(number of tests graded in time) vary directly or inversely? Explain.

Answers

Answer 1

Answer:

directly

Step-by-step explanation:


Related Questions

16+x/13=18 What Is the Steps

Answers

Answer:

x=26

Step-by-step explanation:

Simplify both sides of the equation.

16+

x

13

=18

16+

1

13

x=18

1

13

x+16=18

Step 2: Subtract 16 from both sides.

1

13

x+16−16=18−16

1

13

x=2

Step 3: Multiply both sides by 13.

13*(

1

13

x)=(13)*(2)

x=26

Which statement about -10.5°C and -6°C is true?

0 -10.5°C< -6°C can be used to express the fact that -10.5°C is colder than -6°C.

0 -10.5°C -6°C can be used to express the fact that -10.5°C is warmer than -6°C.

0-10.5°C > -6°C can be used to express the fact that -10.5°C is colder than -6°C.

O -10.5°C > -6°C can be used to express the fact that -10.5°C is warmer than -6°C.

Answers

Answer:

In my view 1st answer is correct..

lg(5x+10)+2lg3=1+lg(4x+12)
need them fast with steps

Answers

Answer:

x=6

Step-by-step explanation:

log(5x+10)-log(4x+12)=1-2log(3)

log(5x+10/4x+12)=1-2log(3)

log(5x+10/4x+12)=log(10)+log(3^-2)

log(5x+10/4x+12)=log(10×3^-2)

log(5x+10/4x+12)=log(10×1/9)

log(5x+10/4x+12)=log(10/9)

5x+10/4x+12=10/9

9(5x+10)=(4x+12)10

45x+90=40x+120

5x=30

x=6

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Use the table to find the residual points. A 4-column table with 5 rows. The first column is labeled x with entries 1, 2, 3, 4, 5. The second column is labeled given with entries negative 0.7, 2.3, 4.1, 7.2, 8. The third column is labeled predicted value with entries negative 0.28, 1.95, 4.18, 6.41, 8.64. The fourth column is labeled residual value with all entries blank. Which residual plot is the correct one for the data? A graph shows the horizontal axis numbered negative 1 to positive 7 and the vertical axis numbered negative 1.5 to positive 1.5. Points are scattered all over the graph. A graph shows the horizontal axis numbered negative 1 to positive 7 and the vertical axis numbered negative 1.5 to positive 1.5. Points are scattered all over the graph. A graph shows the horizontal axis numbered negative 1 to positive 7 and the vertical axis numbered negative 1.5 to positive 1.5. Points are scattered all over the graph. A graph shows the horizontal axis numbered negative 1 to positive 7 and the vertical axis numbered negative 1.5 to positive 1.5. Points are scattered all over the graph.

Answers

Answer:

B

Step-by-step explanation:

residual is the given - predicted

residual 1: -0.42

residual 2: 0.35

so on and so forth

B matches up with the first two coordinates

The residuals are 0.42, 0.35, -0.08, 0.79, and -0.65 because residuals are the difference between the actual and predicted.

What is the line of best fit?

A mathematical notion called the line of the best fit connects points spread throughout a graph. It's a type of linear regression that uses scatter data to figure out the best way to define the dots' relationship.

The residual = actual—predicted

We have given:

X         Given     Predicted     Residual value

1            0.7           0.28             0.42

2           2.3           1.95              0.35

3            4.1            4.18             -0.08

4           7.2           6.41              0.79

5            8             8.65            -0.65

Thus, the residuals are 0.42, 0.35, -0.08, 0.79, and -0.65 because residuals are the difference between the actual and predicted.

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Yesterday, the temperature at noon was 11.4°F. By midnight, the temperature had decreased by 15.7 degrees. What was the temperature at midnight? *

Answers

Answer:

-4.3ºF

Step-by-step explanation:

Since the temperature decreased, you subract 15.7ºF.

11.4ºF-15.7ºF=-4.3ºF

Answer:

The temperature at midnight was:

-4.3°F

Step-by-step explanation:

11.4 - 15.7 = -4.3

Students in the Scott School District spent two weeks collecting a total of 5,853 books to donate to local hospitals. The first week, the students collected 2,054 books. About how many books did the students collect for the hospitals the second week? Choose the better estimate.

Answers

Answer:

3799 books

Step-by-step explanation:

We have the total number of books collected as 5,853 books

In the first week, a total of 2,054 books were collected.

If the collection of books went on for two weeks;

Hence in the second week, a total of (5,853 - 2,054) were collected.

Therefore, number of books collected in the second week = 3799 books

Which of the following is a quadratic function?

Answers

A quadratic function is written as ax^2 + bx + c

Where the first term is raised to the 2nd power and the second term includes the x variable.

The answer would be number 2

What is 0.74 + (-3/5)

Answers

The answer is 0.14!!!

Answer:

It equals 0.14

Step-by-step explanation:

The constants a, b, and c are positive. Solve the inequality for x.

ax-b is less than c

Answers

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[tex]ax - b < c[/tex]

Add sides b

[tex]ax - b + b < c + b[/tex]

Simplification

[tex]ax < b + c[/tex]

Divide sides by a

[tex] \frac{a}{a} x < \frac{b + c}{a} \\ [/tex]

[tex]x < \frac{b + c}{a} \\ [/tex]

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Help me pls thank you!!

Answers

C.

is the answer because it states that you can use three sixes in order to make 18

NEED HELP ASAP PLEASE

Answers

Answer:

The image points are given as;

I' ( -3,0 )

J'( 0,3 )

K'( 2,2)

L'(1,-1 )

Step-by-step explanation:

The object points has coordinates at;

I (5,0)

J(2,3)

K(0,2)

L(1,-1 )

The object points are reflected across line x= 1 to get image of objects points at ;

I' ( -3,0 )

J'( 0,3 )

K'( 2,2)

L'(1,-1 )

Attached is the graph for the object points and image points after reflection across x= 1

Is 4 a solution to the compound inequality “x > 0 ​AND​ x < 7”

Answers

Answer:

Yes

Step-by-step explanation:

4 is greater than 0, and 4 is less than 7

Answer:

yes

Step-by-step explanation:

x is greater than 0 and also less than 7 in this case.

(hi again furydrill! i just answered one of your questions a minute ago!)

ILL MARK U BRAINLIEST!!

Answers

Answer:

a. S

b. M

c. S

d. M

Relflect the shape in the mirror line

Answers

Answer:

its hard to do this without a graph to draw on for you but see explanation

Step-by-step explanation:

from each point count how many units it is from the mirror line and then count that many in the opposite direction. for example, the top left point is 3 away from the mirror line from the left so count 3 units to the right of the mirror line and that is where that point will be.

Using coupons you spell $91 grocery shopping this is 65% of the total retail price of groceries how much would you have spent if you had not use the coupons

Answers

$140 because

$91 divided by 65 is 1.4
1.4 times 100 is 140

Find h(3)
please help me

Answers

Answer:

h(3) = 2

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Function Notation

Step-by-step explanation:

Step 1: Define

f(x) = 3x - 2

g(x) = -x² + 2x

h(x) = |5x - 17|

h(3) is x = 3 for h(x)

Step 2: Evaluate

Substitute:                     h(3) = |5(3) - 17|Multiply:                         h(3) = |15 - 17|Subtract:                        h(3) = |-2|Evaluate:                        h(3) = 2


Find the value of k, if y=3.
2y+k=6

Answers

Answer:

k=1

If y=3

2(3)+k=6

5+k=6

-5     -5

k=6-5

k=1

Now to check

2(3)+1=6

5+1=6

6=6

6=6 is a correct statement! which means k=1.

Have a beautiful day! v(⌒o⌒)v♪

Which inequality represents the range of the relation graphed below?

Answers

Answer: I think it’s d

Step-by-step explanation:

Find the value of x (Round to the nearest tenth)

Answers

root of 481 but that’s only if the base is split into two equal segments that are both 9

what is 2+6
alia akkes

Answers

Answer:

8

Step-by-step explanation:

Answer:

8

Step-by-step explanation:

6+2

- A rectangular pool has an area of 140 square feet. If the length of the
pool is 16 feet, what is its width?

Answers

Answer:

8.75 feet

Step-by-step explanation:

Use the area formula, A = lw, where l is the length and w is the width

Plug in the area and length, and solve for w:

A = lw

140 = 16w

8.75 = w

So, the width is 8.75 feet

Answer:

8.75 ft

Step-by-step explanation:

Use the area formula, A = lw, where l is the length and w is the width

Plug in the area and length, and solve for w:

A = lw

140 = 16w

8.75 = w

So, the width is 8.75 feet

Please help also please explain

Answers

Step-by-step explanation:

By AA, the two triangles in the figure are similar.

therefore, 10/15 = x/18

180 = 15x

x = 12

Topic: congruence and similarity

If you like to venture further, do check out my insta (learntionary) where I regularly post useful math tips! Thank you!

Solve for g: C = 1/2gk

Answers

Answer:

G = [tex]\frac{C(2)}{k}[/tex]

Step-by-step explanation:

C = 1/2gk

First you want to multiple both sides by 2 to get rid of that fraction and you get

C (2) = gk then you divide both sides by k to isolate the g and your left with

G= [tex]\frac{C(2)}{k}[/tex]

Hope this helps

Solve for x, 17/4x-1/12=6x

Answers

Answer:

x= −1/21

Step-by-step explanation:

URGENT BRAINLIEST DUE IN 5 MINUTES PART 1 Clare estimates that her brother is 4 feet tall. When they get measured at the doctor's office, her brother's height is 4 feet, 2 inches.

Which measurement should be considered the actual height?

Answers

Answer:

4 feet and 2 inches

Step-by-step explanation:

The height that was measured by the doctor should be considered the actual height because it is the most accurate. It is an actual measurement and not an estimate.

please help a polynomial of degree 4 has 3-2i and 1+i as zeros. Are there any x-intercepts? Explain why?​

Answers

Answer:

Answer:I can't read or see it

Step-by-step eAnswer:I can't read or see itxplanation:

17y-5x+8=9 in standard form?

Answers

Answer:

-5X + 17Y -1 A = -5X B = 17Y. C = -1

Step-by-step explanation:

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The equation of a line 17y - 5x + 8 = 9  in standard form

is - 5x + 17y - 1 = 0.

What are lines and their slopes?

We know lines have various types of equations, the general type is

Ax + By + c = 0, and the equation of a line in slope-intercept form is

y = mx + b.

Where slope = m and b = y-intercept.

the slope is the rate of change of the y-axis with respect to the x-axis and the y-intercept is the (0,b) where the line intersects the y-axis at x = 0.

Given, 17y - 5x + 8 = 9 we have to convert in standard form Ax + By + c = 0.

∴  17y - 5x + 8 = 9.

- 5x + 17y - 1 = 0.

So, A = - 5, B = 17 and, c = - 1.

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Which of these equations correctly identify factors of 15? Check all that apply.

15 ÷ 1 = 15
15 ÷ 2 = 7
15 ÷ 3 = 5
15 ÷ 5 = 3
15 ÷ 10 = 5

Answers

Answer:

15÷1=15

15÷3=5

15÷5=3

Step-by-step explanation:

Answer:

15 divided by 1 = 15

15 divided by 3 = 5

15 divided by 5 = 3

Step-by-step explanation:

Consider 8x2 - 48x = -104.

Answers

Answer:

2.5

Step-by-step explanation:

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Answer:

a=1: x2 + -6      x=-13

Step-by-step explanation:

Complete the square:

x2 – 6x + 9  =–13 + 9

Factor the trinomial and simplify:

(x + -3 )²= -4

Use the square root property of equality to solve

(x  – 3)2 = –4.

The solutions are

3 ± 2i

2. What is the arithmetic mean between 35 and 105?

Answers

Answer:

to get the arithmetic means between 35 and 105 you must add the two and divide it by 2 so 35 + 105 equals to 140 then you divide it by 2 to get 70

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