Whoever is awake I need help with math points and brainlest

Answer:

Selling price= $6.53

Step-by-step explanation:

Giving the following information:

A bookstore pays $4.50 for a novel. The percent of markup is 45%.

To calculate the selling price, we need to use the following formula:

Selling price= purchase price*(1 + mark up percentage)

Selling price= 4.5*1.45

Selling price= $6.53

Answer:

1.13

2.19

3.31

Step-by-step explanation:

Let the length of the shortest side be a.

a+a+6+a+6+12=63

3a=39

a=13

Answer:

H0: μ ≥ 16

H1: < 16

−2.748749;

0.011275;

Reject the Null

Step-by-step explanation:

Given the data:

15.87, 16.02, 15.78, 15.83, 15.69, 15.81, 16.04, 15.81, 15.92, 16.10

Null hypothesis ; H0: μ ≥ 16

Alternative hypothesis ; H1: < 16

Sample size, n = 10

From the data:

Using calculator,

Sample mean, m = 15.887

Standard deviation, s = 0.13

The test statistic, T

(m - μ) / s/sqrt(n)

(15.887 - 16) / (0.13/sqrt(10))

= −2.748749

Using the p value from test statistic calculator :

Degree of freedom (df) = 10 - 1 = 9 at 0.05 significance level is 0.011275

Since the p value is < 0.05

0.011 < 0.05

We reject the Null and conclude that the mean fill weight is less than 16 oz

Answer:

$9.19

Step-by-step explanation:

We are given that

Cost of each ticket=$3

Average profit per ticket=$1

Expect gain for ticket purchaser must be -$1

Let x be the cost of first prize

Probability of first prize=0.15

Probability of second prize=0.30

Probability of third prize=0.45

Cost of second prize=$1.15

Cost of third prize=$0.74

Total probability=0.15+0.30+0.45=0.9

Probability of winning =0.9

Probability of losing=1-0.9=0.1

According to question

[tex]x(0.15)+0.30(1.15)+0.74(0.45)-3(0.1)=-1[/tex]

[tex]0.15x+0.378=-1[/tex]

[tex]0.15x=-1-0.378[/tex]

[tex]0.15x=-1.378[/tex]

[tex]x=-\frac{1.378}{0.15}=-9.19[/tex]

Hence, she spend money on each first prize=$9.19

Answers:

11.) 0.25

12.) 3:20

13.) 0.75

14.) 19

Answer:

Question 11: 0.25

Question 12: 3:20

Question 13: 0.75

Question 14: 19

Answer: omg yes I ate like 10 wings last night. Your answer should be 20

Step-by-step explanation:

Answer:

Step-by-step explanation:

No solution. Lines M and P have the same slope but different y-intercepts., so they are parallel lines.

Parallel lines don’t intersect each other, so there is no solution.

Answer:

-203

Step-by-step explanation:

(10−3)×(3−2^5 )

Subtract 3 from 10 to get 7.

7(3−2^5 )

Calculate 2 to the power of 5 and get 32.

7(3−32)

Subtract 32 from 3 to get −29.

7(−29)

Multiply 7 and −29 to get −203.

−203

Step-by-step explanation:

Factors of 21 are 1, 3, 7 and 21.

a + f + t cannot be 1 or 3 as it cannot be written as a sum of 3 distinct digits, so it is 7.

The smallest 3 remaining digits are 2, 5 and 6 which add to 13.

So there are no solutions.

Answer: 12

Step-by-step explanation:

21 = 21 x1 3x7

=1x3 expand over3= 12

Answer:

1/3 because they have only colored on out of three, so the answer will be 1/3. Hope this helped!

Step-by-step explanation:

Answer: The probability that a randomly selected cup of hot chocolate would have a temperature of less than 161 degrees =0.042

This outcome would warrant a replacement cup.

Step-by-step explanation:

Let x be a random variable that represents the temperature of hot chocolates.

GIven: Mean temperature = 175 degrees

standard deviation = 8.1 degrees

The probability that a randomly selected cup of hot chocolate would have a temperature of less than 161 degrees =[tex]P(x<161)[/tex]

[tex]=P(\dfrac{x-\mu}{\sigma}<\dfrac{161-175}{8.1})\\\\=P(Z<-1.7284) [Z=\dfrac{x-\mu}{\sigma}]\\\\=1-P(Z<1.7284)\\\\=1-0.9580\\\\=0.042[/tex]

Hence, the probability that a randomly selected cup of hot chocolate would have a temperature of less than 161 degrees =0.042 < 0.5 (unusual)

i.e. this outcome would warrant a replacement cup.

Answer:

680700

Step-by-step explanation:

this method can calculate more quickly

Answer: I can give you the volume: 480. But to find the area I need more context to know which are the length and width.

Answer:

(x+2)^2

Step-by-step explanation:

Answer:

Step-by-step explanation:

2x(x - 3) + 7(x - 3)

2x^2 - 6x + 7x - 21

reduce

2x^2 + x - 21

if this is equal to 0 then:

2x^2 + x - 21 = 0

factored:

(2x + 7)(x - 3) = 0

How that was done:

Divide the (2x^2) into (2x) and (x).

Divide the (-21) into (+7) and (-3). You choose these numbers so that their sum, when multiplied by (2x) and (-3), adds up to (+x).  

Answer:

x = 34

y = 21

thus the two numbers are 34 and 21...

The smaller number is 21, and the larger number is 34 when the sum of two numbers is 55. The large number is 13 more than the smaller number.

Let's assume the smaller number is represented by x.

According to the given information, the larger number is 13 more than the smaller number. So, the larger number can be represented as (x + 13).

The sum of the two numbers is 55. We can set up the equation:

x + (x + 13) = 55

Simplifying the equation:

2x + 13 = 55

Subtracting 13 from both sides:

2x = 42

Dividing both sides by 2:

x = 21

Now that we have found the value of x (the smaller number), we can find the larger number by substituting it back into the expression (x + 13):

Larger number = x + 13 = 21 + 13 = 34

Therefore, the smaller number is 21, and the larger number is 34.

To know more about smaller numbers click here :

https://brainly.com/question/30681104

#SPJ2

Answer:

3.5

Step-by-step explanation:

3.5 is the y-intercept because the point is (0,3.5). This is where it intercepts with the y-axis.

Hope it helps!

Answer:

Charles

Step-by-step explanation:

Answer:15/16 > 1/2

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer: The answer is (4, 600)

Step-by-step explanation:

Answer:

9 3/4! I hope this helps!

Step-by-step explanation:

Answer: 0.4575

Step-by-step explanation:

.915/2

Answer:

A.

Step-by-step explanation:

Answer:

3 . - 10d - 6

Step-by-step explanation:

-2(6d-1) + 2(d-4)

= - 12d + 2 + 2d - 8

= - 10d - 6

Hope it will help :)❤

Answer:

Step-by-step explanation:

Your answer

816 dollars

Mark it as Brainlist answer. Follow me.

Answer:

[tex]\displaystyle \lim_{x \to 0^-} f(x) = -1 \\ \lim_{x \to 0^+} f(x) = 1 \\ \lim_{x \to 0} f(x) = DNE[/tex]

General Formulas and Concepts:

Algebra I

Calculus

Limits

Step-by-step explanation:

Step 1: Define

[tex]\displaystyle f(x) = \frac{|x|}{x}[/tex]

Step 2: Graph/Evaluate

Graph the function so we can evaluate the given limits. See attachment.

We see from the function that when we approach 0 from the left, we will get a -1.

∴ [tex]\displaystyle \lim_{x \to 0^-} f(x) = -1[/tex]

We see from the function that when we approach 0 from the right, we will get a 1.

∴ [tex]\displaystyle \lim_{x \to 0^+} f(x) = 1[/tex]

Since the limit from the left does not equal the limit from the right, the limit as x approaches 0 of f(x) does not exist (DNE).

Answer:

A .she will need more inches than feet because feet are larger

Step-by-step explanation:

Answer:

7.1414284285

answer...