Laura had to write 6 pages for a book report. She figured that since it took her an hour to write one-seventh of a page, it will take her 42 hours to complete her book report. Is Laura correct?

Answers

Answer 1

Yes because 6x_____=42 hours


Related Questions

An independent research firm conducted a study of 100 randomly selected children who were participating in a program advertised to improve mathematics skills. The results showed no statistically significant improvement in mathematical skills, using a significance level of 0.05. The program is effective, which of the following would be an appropriate method for increasing power in this context?

a. Increase the sample size to 200 children.
b. Use a two-sided test instead of a one sided test.
c. Decrease the sample size.
d. Use alpha-0.01 instead of a-alpha.
e. Use a one sided test instead of a two-sided test.

Answers

Answer:

b) use a two-sided test instead of a one sided test.

Step-by-step explanation:

If we are using a significance level of 0.05, then the two-tailed test assigns half alpha to test for statistical significance in one direction and half alpha to test statistical significance in the other direction. This implies that .025 is present in each tail of the test statistical distribution. When using the two-tailed test, regardless of the direction of the relationship you assume, we test the possibility of the relationship in both directions.

Help me ! This is due today

Answers

Answer:

y = 1/4 x + 1

The slope is 1/4, and the y intercept is 1.

Let me know if this helps!

Need help on this question

Answers

(-1.5,2.5) is the point where A is on the coordinate plane.
The coordinates of A are (-1.5,2.5)

The distance in New York is 3 hours ahead of the distance in LA. The miles between the cities is 7,120. A plane left New York at 6:25a.m. and arrived at 8:25a.m. local time. At what speed did the plane travel?

Answers

It prolly took like 60 min away who knows but 60 or 5 mins

In a class of 80 students,40 study physics,48study mathematics and 44 study chemistry,20 study physics and mathematics,24 study physics and chemistry and 32 study only two of the three subjects.Of every student studies at least one of the three subjects.Find ; 1.The number of students who study all the three subjects.2.The number of students who study only mathematics and chemistry.

Answers

Answer:

80+40+44-20÷24+32 ♡♡♡

Using set operations,

1.The number of students who study all the three subjects = 10

2.The number of students who study only mathematics and chemistry = 8

What are set operations?

Set operations are the operations that are applied on two or more sets to develop a relationship between them. There are four main kinds of set operations which are as follows.

Union of setsIntersection of setsComplement of a setRelative Complement

Let mathematics = M, physics = P, chemistry = C.

n(M∪P∪C) = 80

n(M) = 48

n(P) = 40

n(C) = 44

n(M∩P) = 20

n(M∩C) = ?

n(C∩P) = 24

n(M∩P) + n(M∩C) + n(C∩P) - 3n(C∩P∩M) = 32

20 + n(M∩C) + 24 - 3n(C∩P∩M) = 32

n(M∩C) = 3n(C∩P∩M) - 12 - *

We know,

n(M∪P∪C) = n(M) + n(P) + n(C) - n(M∩P) - n(M∩C) - n(C∩P) + n(C∩P∩M)

80 = 48 + 40 + 44 - 20 - n(M∩C) - 24 + n(C∩P∩M)

n(M∩C) = n(C∩P∩M) + 8 - **

Equating * and **,

n(C∩P∩M) + 8 = 3n(C∩P∩M) - 12

2n(C∩P∩M) = 20

n(C∩P∩M) = 10

putting the value of n(C∩P∩M) in *

n(M∩C) = 18

n(M∩C) - n(C∩P∩M) = 8

Learn more about set operations here

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Can you help me please here is the image

Answers

Answer: D all of the above

Step-by-step explanation:

A. you can see that the majoritie of the area is dessort becuase of the long expance of lack of vegitation and water

B. Because there is no other water sourses the cities would have to be along water

C. Along the nile river is vegitation

D. Must be D.

Find the slope of a line perpendicular to the equation: 3x – 2y = 6​

Answers

Answer:

3/2x

Step-by-step explanation:

m1xm2=-1
so
y=mx+c
-2y=-3x+6
2y=3x-6
y=3/2x-3

So the gradient of the perpendicular would be

m= -2/3

find the x and y

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

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

So
Substitute them all into
y=mx+c

-3=-2/3(2)+c
c=-5/3

So

y=-2/3x-5/3

I might have made mistakes since I typed this so recheck if you can

The length of a side of a cube can be determinad
by finding the cube root of its volume. If a cube has
a volume of 64 cm3 what s the length of a side?
A 40 cm
B. 80 cm
C. 16.0 cm
D. 32.0 cm

Answers

Answer:

4 cm

which is none of the listed answers

Step-by-step explanation:

∛64 = 4

proof:

4x4x4 = 64

Find the area. Simplify your answer.
x+8
x+7

Answers

Answer:

x² 15

Step-by-step explanation:

I'm not 100% sure.. sorry if I'm wrong..

Write each absolute value in a box to show the order from least to greatest.

|11| |–8| |–2| |5| |–12|

Answers

Answer:

|–2| |5| |–8| |11| |–12|

Answer:

|-2|,|5|,|-8|,|11|,|-12|

Step-by-step explanation:

This is the order because |-2| in absolute value is positive 2 and |11| in absolute value is still positive because you don't change the sign unless the ll was negative in absolute value.

GIVING BRAINIEST!!!!!!!!!!!! 3 times the difference of 4g and 4 is less than -6 times the sum of -3g and 4!

Answers

Answer:

3(4g-4)<-6(-3g+4)

Triangle Theorems please!!!!!!

Answers

Answer:

x = 8

Step-by-step explanation:

GIVING BRAINIEST!!!! I NEED THE INEQUALITY SENTENCE FOR IT!!!

Answers

He needs to be 35 lb

A figure was translated 4 units down and 3 to the left then reflected over the y-axis. The figures are

Answers

Answer:

Congruent and similar

Step-by-step explanation:

because you did not change anything about the shape that shape is still the same size and shape just in a different spot

B. Congruent but not similar because translation and reflection does not change the size or shape of the figure

In the ordered pair of numbers (-2,8) the number - 2 is called the
and the number 8 is called the

Answers

Answer:

x co-ordinate and y co-ordinate

A researcher reports that 80% of high school seniors would pass a driving test, but only 45% of high school freshmen would pass the same driving test. Assume that the researcher’s claim is true. Suppose a driving test is given to a random sample of 90 high school seniors and a separate random sample of 85 high school freshmen. Let and be the sample proportions of seniors and freshmen, respectively, who pass the test. What are the shape and mean of the sampling distribution of ? skewed left with mean –0.35 skewed right with mean 0.625 exactly Normal with mean 0.35 approximately Normal with mean 0.35 approximately Normal with mean 0.625

Answers

Answer:

approximately Normal with mean 0.35

Step-by-step explanation:

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean [tex]\mu = p[/tex] and standard deviation [tex]s = \sqrt{\frac{p(1-p)}{n}}[/tex]

A researcher reports that 80% of high school seniors would pass a driving test, but only 45% of high school freshmen would pass the same driving test.

This means that [tex]p_1 = 0.8, p_2 = 0.45[/tex]

Subtraction of Variable 1 by Variable 2:

By the Central Limit Theorem, the shape will be approximately normal.

The mean is the subtraction of the means of each proportion. So

[tex]p = p_1 - p_2 = 0.8 - 0.45 = 0.35[/tex]

So the correct answer is given by:

approximately Normal with mean 0.35

(10 POINTS) answer ASAP if you can

Answers

I think that the answer is R
I think it’s R I have the same prb

find the measure of each given angle ​

Answers

9514 1404 393

Answer:

  ∠2 = 19°

Step-by-step explanation:

Angles that are equal to 161° are vertical and corresponding angles: 1, 4, 5.

Angles that are equal to the supplement of 161° are the remaining angles: 2, 3, 6, 7.

Angle 2 is the supplement of 161°:

  ∠2 = 180° -161°

  ∠2 = 19°

What is m Angle Q B O? 5° 9° 12° 24°

Answers

12 cant be 5 9 or 24 so go with 12

Answer:

12

Step-by-step explanation:

ILL GIVE BRAINLIEST TO WHO EVER CAN ANSWER MY LAST QUESTION

Answers

What’s your question ?

18. Let f(x) = ax? + bx-6 and 0 (x) = bx2 + ax.
If x-2 divides f(x) completely but leaves
the remainder -12 when it divides $(x),
then factorise f (x) + 0 (x) + 2x2.​

Answers

Step-by-step explanation:

the number of members in A municipal corporation depends upon the _______ city

If 2h=81^2−19^2, then find the value of h.

Answers

Answer:

h = 3100

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right  

Equality Properties

Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of Equality

Step-by-step explanation:

Step 1: Define

2h = 81² - 19²

Step 2: Solve for h

Evaluate exponents:                                                                                         2h = 6561 - 361Subtract:                                                                                                            2h = 6200[Division Property of Equality] Divide 2 on both sides:                                  h = 3100

Answer:

2h = 81^2 - 19^2

2h = 6561 - 361

2h = 6200

h = 6200/2

h = 3100

A party rental company has chairs and tables for rent. The total cost to rent 5 chairs and 3 tables is $31.the total cost to rent 2 chairs and 6 tables is $22.what is the cost to rent each chairs and each table?

Answers

Answer:

$1.25 & $10.25

Step-by-step explanation:

Let c be the cost of renting one chair and t be the cost of renting table. We're given two equations:

#1. 5c + 3t = 37

#2. 2c + 6t =64

We have a system of equations. Using our system of equations calculator, we can solve this problem any of 3 ways below:

Chairs (c) cost $1.25Tables (t) cost $10.25

Mrs. Jones is 4 times as old as her son. The sum of their ages is 50 years. How old was Mrs. Jones when her son was born?

Answers

Answer:

30

Step-by-step explanation:

is mrs. jones is 40, her son is 10, sum = 50.

ten years before son was 0, mrs. jones was 30

What is 6 cups divided equally into four containers

Answers

Answer:

6x4=24 it's either this one or the one on top

Does all of these ordered pairs represent a function (-1,1), (3,11), (-4,-3), (-2,8), (0,5)

Answers

Yes. In mathematics, a function is a binary relation between two sets that associates to each element of the first set exactly one element of the second set.

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hope it helps

27. The traffic officer issued violation tickets to traffic
violators. If 68 of them composed 80% of the total
violators, how many violators are there in all?
A. 83
B. 84
C. 85
D. 86
28. There are 18 roses in a bunch of 24 flowers.
What percent of the flowers are roses?
A. 18%
B. 24% C. 60% D. 75%
29. A number is 20% of 50. What percent it is to
200?
A. 5%
B. 10% C.15% D. 20%
Please help


I really need it I'm gonna give u Brainliest ​

Answers

Answer:

27. C

28. D

29. A

Pls this one more i will 20 point

Answers

Answer:

u dont have a question attached

Step-by-step explanation:

Convert: 112 meters =______________________
centimeters

Answers

Answer:         m               cm

                    112.00 11,200

Step-by-step explanation:

Which of these is an exponential parent function?
A. f(x) = x
B. f(x) = x
C. f(x) = 2x
D. f(x) = 1x1
SMIT

Answers

D is the answer hope this helps!

Option B is correct, f(x) = 2ˣ is an exponential parent function.

What is a function?

A relation is a function if it has only One y-value for each x-value.

The exponential parent function is of the form:

f(x) = aˣ

where a is a positive constant (the base of the exponential function).

Among the given options, the exponential parent function is,

⇒  f(x) = 2ˣ,

Because it has the form of an exponential function, where the base is 2.

f(x) = x is a linear function, not an exponential function.

f(x) = |x| is an absolute value function, not an exponential function.

f(x) = x² is a quadratic function, not an exponential function.

Hence,  f(x) = 2ˣ is an exponential parent function, Option B is correct.

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