Help me please (NO LINKS )

Help Me Please (NO LINKS )

Answers

Answer 1

Answer:

Hey! Finally found a question of yours!

Step-by-step explanation:

1. A=9

2. A=12

3. A=21

4. A=15

5. A=7

6. A=5

7. A=20.8

8. A=48

9. A=0.25


Related Questions

PLEASE HELP!!!!!! I WILL GIVE Brainliest!

Answers

Answer:

just sub

Step-by-step explanss

ТDaP is a booster shot that prevents Diphtheria, Tetanus, and Pertussis in adults and adolescents. It should be administered every 8 years in order for it to remain effective. A random sample of 500 people living in a town that experienced a pertussis outbreak this year were divided into two groups. Group 1 was made up of 132 individuals who had not had the TDaP booster in the past 8 years, and Group 2 consisted of 368 individuals who had. In Group 1, 15 individuals caught pertussis during the outbreak, and in Group 2, 11 individuals caught pertussis. Is there evidence to suggest that the proportion of individuals who caught pertussis and were not up to date on their booster shot is higher than those that were? Test at the 0.05 level of significance.
Enter the test statistic - round to 4 decimal places.
Enter the P-Value - round to 4 decimal places.
Is there evidence to suggest the proportion of those who caught pertussis is higher for those who were not up to date on their booster?

Answers

Answer: 76.8356 and 12.5372

Step-by-step explanation:

Jenny is 9 years younger than Sammie. Five years ago, Sammie was four times older than Jenny. How old is each now?

Answers

Answer:

Jenny's is 8 now and Sammie is 17.

Step-by-step explanation:

This question can be solved by a system of equations.

I am going to say that:

Jenny's age is x.

Sammie's age is y.

Jenny is 9 years younger than Sammie.

This means that:

[tex]x = y - 9[/tex]

Five years ago, Sammie was four times older than Jenny.

This means that:

[tex]y - 5 = 4(x - 5)[/tex]

Since [tex]x = y - 9[/tex]

[tex]y - 5 = 4(y - 9 - 5)[/tex]

[tex]y - 5 = 4(y - 14)[/tex]

[tex]y - 5 = 4y - 56[/tex]

[tex]3y = 51[/tex]

[tex]y = \frac{51}{3}[/tex]

[tex]y = 17[/tex]

[tex]x = y - 9 = 17 - 9 = 8[/tex]

Jenny's is 8 now and Sammie is 17.

An examination consists of multiple-choice questions, each having five possible answers. Linda estimates that she has probability 0.4 of knowing the answer to any question that may be asked. If she does not know the answer, she will guess, with conditional probability 1/5 of being correct.A. What is the probability that Linda gives the correct answer to a question? B. What is the conditional probability that Linda knows the answer, given that she supplies the correct answer?

Answers

Answer:

a. 0.52 = 52% probability that Linda gives the correct answer to a question.

b. 0.7692 = 76.92% probability that Linda knows the answer

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

[tex]P(B|A) = \frac{P(A \cap B)}{P(A)}[/tex]

In which

P(B|A) is the probability of event B happening, given that A happened.

[tex]P(A \cap B)[/tex] is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Supplies the correct answer:

Event B: Knows the answer

A. What is the probability that Linda gives the correct answer to a question?

0.4(knows the answer)

1/5 = 0.2 of 1 - 0.4 = 0.6(guesses the answer). So

[tex]P(A) = 0.4 + 0.2*0.6 = 0.52[/tex]

0.52 = 52% probability that Linda gives the correct answer to a question.

B. What is the conditional probability that Linda knows the answer, given that she supplies the correct answer?

Intersection of events A and B is knowing the answer and giving the correct answer, which means that [tex]P(A \cap B) = 0.4[/tex]

The desired probability is:

[tex]P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.4}{0.52} = 0.7692[/tex]

0.7692 = 76.92% probability that Linda knows the answer

Find the area of of a regular octagon with side length 20 cm.

Answers

A=2(1+[tex]\sqrt{2}[/tex])a^2=2·(1+[tex]\sqrt{2}[/tex])·20^2≈1931.37085cm²

The net for a rectangular prism is shown below. Which is total surface area of the figure?

Answers

The answer is 2,916!!!!

Find the area of this trapezoid

Answers

Answer:

a= 1024

Step-by-step explanation:

plz help me
which number describes the center of the data set below?

Answers

I wanna say B...but A

someone help me with math :):

Which of the following is not an integer?

1. 0
2. 1\2
3. 9
4. -13

what number? 1,2,3, or 4?

Answers

the answer is 1/2.

Only whole numbers can be integers for future reference :)

Select the statement that describes this expression: fraction 1 over 2 x (734 − 246).

A) Half the sum of 734 and 246
B) fraction 1 over 2 the difference between 734 and 246
C) fraction 1 over 2 the quotient of 734 and 246
D) 2 times the difference between 734 and 246

Answers

The statement to represent the expression is fraction 1 over 2 the difference between 734 and 246. Therefore, option B is the correct answer.

What is an expression?

An expression is a combination of terms that are combined by using mathematical operations such as subtraction, addition, multiplication, and division.

The given expression is 1/2 ×(734-246)

= 1/2 ×488

= 244

Therefore, option B is the correct answer.

To learn more about an expression visit;

https://brainly.com/question/28170201.

#SPJ3

what is the solution to the system of equations?
3x - 6y = -12
2x - 4y = -16

please help!!

Answers

Solve for
x
x in
3
x

6
y
=

12
3x−6y=−12.
x
=
2
y

4
x=2y−4

2 Substitute
x
=
2
y

4
x=2y−4 into
2
x

4
y
=

16
2x−4y=−16.

8
=

16
−8=−16

3 Since

8
=

16
−8=−16 is not true, this is an inconsistent system.
No Solution

Explain why 3/4 is graphed to the right of 1/4 but -3/4 is graphed to the left of -1/4

Answers

The Positivity and Negativity of the Numbers

3/4 is graphed to the right of 1/4 because 3/4 is greater than 1/4, but -3/4 is graphed to the left of -1/4 because -3/4 is less than -1/4.

If x = 0, what is f(x)?

Answers

12. hope that helps you with your homework

For the function f(x) = 3x
Find f(4)

Answers

f(4)=3(4)
f(4)=12

Hope this helps :)

Answer:

F(4) = 3*4 = 12

Step-by-step explanation:

A large restaurant chain is curious what proportion of their customers in a given day are new customers. They are thinking of taking a sample of either n=50 or n=100 customers and building a one-sample z interval for a proportion using the data from the sample. Assuming the sample proportion is the same in each sample, what is true about the margins of error from these two samples?

Answers

Answer:

none of the above

What is the area of the part that is not shaded.

Answers

Answer: 48

Step-by-step explanation:

big square is 64, shaded square is 16

64-16= the unshaded region

Can someone help me I’m really bad in geometry

Answers

He travelled 52.6 feet which is the hypotenuse. Then use sin ratio to solve for h.

Select the statement that describes this expression: (3,647 + 123) + 72. (2 points)

Group of answer choices

72 more than the sum of 3,647 and 123

72 times the sum of 3,647 and 123

72 more than the difference between 3,647 and 123

72 more than the product of 3,647 and 123

Answers

Answer:

A

Step-by-step explanation:

The answer Is A! Good luck ;)

PLEASE HELP ONLY GENIUSES! THANK YOU IN ADVANCE!

Answers

Answer:

By trigonometric properties that is NOT an identity By trigonometric properties this is an identify

Estimate 98.7 / 10.1 = ? (Show work)

Answers

Answer:

10

Step-by-step explanation:

Round both numbers to the nearest tens place.

98.7 rounds up to 100

10.1 rounds down to 10

100/10=10

A random sample of 300 parts was taken from a particular grinding machine. Of those parts, 12 were defective. (a) Construct a 99% upper bound for the proportion of all parts produced by this machine that will be defective. 0.0109 (b) Construct a 99% confidence interval for the proportion of all parts produced by this machine that will be defective. [ Select ] (c) It is decided that the interval produced in part (b) is too wide, and thus a new sample must be taken and a new confidence interval calculated. What sample size would be necessary to ensure that the width of the 99% confidence interval will be 0.02 or less

Answers

Answer:

a) Ub = 0,069

b)  CI 99 %  = ( 0,0287 ; 0,069 )

c) n = 2536

Step-by-step explanation:

Confidence Interval (CI) for proportion is

p₀  ±  z(c) * √ ( p₀*q₀ ) /n

Where     p₀  is the sample proportion

n = size of the sample

and z(c)   is z score for the significance level α

As    CI  = 99 %       α = 1%      α = 0,01      α/2 = 0,005

from z-table we find   z(c) = 2,57

p₀ = 12/300      p₀ = 0,04  ;    

n*p₀ = 12  > 10 and  n*q₀  = 300*0,96        n*q₀ = 288 > 10

We can use normal distribution as a valid  aproximation of binomial distibution

Then     z(c) = 2,57

a) upper bound for CI     Ub

Ub = p₀ + z(c) * √ p₀q₀/300

Ub = 0,04  +  2,57 * √ (0,04*0,96)/300

Ub = 0,04 + 0,0113

Ub = 0,069

b) CI at 99%  is

CI  = p₀  ±  z(c) * √ ( p₀*q₀ ) /n

we have already calculated the Ub = 0,069

the Lower bound would be   Lb = 0,04 - 0,0113

Lb = 0,0287

Then     CI 99 %  = ( 0,0287 ; 0,069 )

c) If      CI ≤ 0,02 we can find the minimun n value with the equation:

p₀  ±  z(c) * √ ( p₀*q₀ ) /n = CI   or    p₀  -  z(c) * √ ( p₀*q₀ ) /n = 0,01

For symmetry respect to p₀

z(c) *√ (p₀*q₀) / n  = 0,01

Solving for n

z(c) * √ ( p₀*q₀ ) /n = 0,01

2,57 * √ (0,04*0,96)/n  =  0,01

2,57 * √ 0,0384/n = 0,01

2,57 = 0,01/√ 0,0384/n

Squaring both sides of the equation

6,6049 = (0,01)² *n / 0,0384

0,0384*6,6049 / 0,0001  = n

n = 2536

whats the answer a b or c

Answers

b it think it is I’m not sure

Answer:

∠C & ∠P

Step-by-step explanation:

2.6 - c/0.2 = -15.9 find what c is

Answers

Answer:

3.7

Step-by-step explanation:

c/0.2=2.6+15.9

c=(2.6+15.9)0.2

GIVING BRAINIEST TO WHOEVER ANSWERS THIS!!!!

Answers

Answer:

Step-by-step explanation:

2x + a = bx - 5

3). a ≠ - 5 and b ≠ 2

4). a ≠ - 5 and b = 2

(5) a = - 5 and b = 2

a survey was taken of twenty dentists about Sparkly toothpaste. sixteen of the dentists recommended sparkly toothpaste to their patients. the same survey was given to dentists in a different state. the time they ask thirty dentists. twenty-four of those dentists recommended sparkly toothpaste to their patients continue, how many dentists out of fifty would recommend sparkly toothpaste?​

Answers

Answer:

40

Step-by-step explanation:

So they asked 50 people total but they want to know how many agreed they should use it so 16 said yes and 24 said yes add those two numbers and get your answer

Answer:

40

Step-by-step explanation:

Just add 24 and 16 together.

8m > 67
Which value of m satisfies the inequality?
A.5
B.6
C.8
D.9

Answers

Answer:

D

Step-by-step explanation:

A is wrong because 8 x 5 = 40

40 < 67

B is wrong because 8 x 6 = 30

48 < 67

C is wrong because 8 x 8 = 64

64 < 67

D is correct because 72 > 67

Hope this helps!! ♥︎

Solve the system using elimination. 4y+x= -17 -2y+2x =16

Answers

Answer:

(3, -5)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right  

Distributive Property

Equality Properties

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

Algebra I

Coordinates (x, y)Solving systems of equations using substitution/elimination

Step-by-step explanation:

Step 1: Define Systems

4y + x = -17

-2y + 2x = 16

Step 2: Rewrite Systems

-2y + 2x = 16

[Multiplication Property of Equality] Multiply 2 to both sides:                       2(-2y + 2x) = 32[Distributive Property] Distribute 2:                                                                 -4y + 4x = 32

Step 3: Redefine Systems

4y + x = -17

-4y + 4x = 32

Step 4: Solve for x

Elimination

Combine equations:                                                                                         5x = 15[Division Property of Equality] Divide 5 on both sides:                                  x = 3

Step 5: Solve for y

Substitute in x [Original Equation]:                                                                  4y + 3 = -17[Subtraction Property of Equality] Subtract 3 on both sides:                        4y = -20[Division Property of Equality] Divide 4 on both sides:                                  y = -5

Answer:

Step-by-step explanation:

Let's solve your system by elimination.

4y+x=−17;−2y+2x=16

Multiply the first equation by -2,and multiply the second equation by 1.

−2(4y+x=−17)

1(−2y+2x=16)

Becomes:

−2x−8y=34

2x−2y=16

Add these equations to eliminate x:

−10y=50

Then solve −10y= 50 for y:

−10y=50

−10y /−10  =  50/  −10 (Divide both sides by -10)

y = −5

Now that we've found y let's plug it back in to solve for x.

Write down an original equation:

4y + x = −17

Substitute −5 for y in 4y+x=−17:

(4)(−5)+x=−17

x−20=−17(Simplify both sides of the equation)

x−20+20=−17+20(Add 20 to both sides)

x=3

Answer:

x=3 and y=−5

HOPE IT WILL HELP :)

Mathilde has 20 pints of green paint. She uses 2/5 of it to paint a landscape and 3/10 of it while painting a clover. She decides that, for her next painting, she will need 14 pints of green paint. How much more paint will she need to buy?

Answers

Answer:

She would need one more pint.

Step-by-step explanation:

please help!! 14 points!!!

Answers

Decimal equal 0.28 percent equal 28%

What the solution for CED

Answers

Answer: 58 degrees
Explanation: 180-122=58

Answer:

Step-by-step explanation:

The two adjacent angles must have a sum of 180

CED=180-122

CED=58 degrees

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