30 POINTS

WHERE ARE THE EXPERTS AND ACE!!!!!!! I NEED HELP PLS SHARE YO SMARTNESS!!!!! WILL GIVE BRAINLIEST AND RATE AND VOTE!!! EASY IM JUST NOT SMART

40.
PLEASE GIVE EXPLANATION

30 POINTS WHERE ARE THE EXPERTS AND ACE!!!!!!! I NEED HELP PLS SHARE YO SMARTNESS!!!!! WILL GIVE BRAINLIEST

Answers

Answer 1

Answer:

3.61%

Step-by-step explanation:

Mathematics, calculator

Answer 2

Answer:

Step-by-step explanation:

If we are looking for the probability that the battery lasts between 7 and 8 years, we find the z-score for the probability that it lasts less than 8 years, and then subtract from it the z-score for the probability that it lasts less than 7 years. This subtraction will give you what's left: the span in between 7 and 8 years. To find the z-score:

[tex]z=\frac{x_i-\mu}{\sigma}[/tex] Therefore,

P(x < 8) has a z-score of

[tex]z=\frac{8-5}{1.2}=1.667[/tex] The p-value that accompanies this z-score is .99379 (which translates to 99.379% of the data falling below 8 years) and

P(x < 7) has a z-score of

[tex]z=\frac{7-5}{1.2}=2.5[/tex] The p-value that accompanies this z-score is .95224 (which translates to 95.224% of the data falling below 7 years).

Subtract the p-value of 2.5 from the p-value of 1.667 to get

.99379 - .95224 = .04155 = 4.16%, choice A.


Related Questions

plz do this all plz ​

Answers

Answer:

I don't know search it up I picked B

okay it's 5 and I'm

given graph of the function F(x) below, what happens to F(x) when x is a very large positive number?

Answers

Answer:

C

Step-by-step explanation:

Kyrin picked 40 apples from the trees behind his house. Later, he gave two to each of his friends. He only has 8 remaining. How many friends does he have?

Answers

16 friends. solve using the equation 40 - 2x = 8.

Answer:

kyrin had 16 friends

Step-by-step explanation:

40 - 2 (x) = 8 make x as friends

- 2x = 8 - 40

- 2x/ - 2 = - 32/ -2

x = 16

please help me, just give me the answers, my teacher likes it simple so just give me the answers pleease!!!

Answers

Answer:

1. Ans;

[tex] \frac{1}{3} \times 1 \frac{1}{3} = \frac{1}{3} \times \frac{4}{3} = \frac{4}{9} = 0.4 [/tex]

2. Ans ;

[tex]1 \frac{1}{5} \times \frac{3}{4} = \frac{6}{5} \times \frac{3}{4} = \frac{9}{10} = 0.9[/tex]

3. Ans ;

[tex] \frac{2}{3} \times 1 \frac{3}{5} = \frac{2}{3} \times \frac{8}{5} = \frac{16}{15} = 1 \frac{1}{15} = 1.06[/tex]

4. Ans ;

[tex]2 \frac{1}{2} \times 1 \frac{1}{3} = \frac{5}{2} \times \frac{4}{3} = \frac{10}{3} = 3 \frac{1}{3} = 3.3[/tex]

5. Ans ;

[tex]2 \frac{1}{2} \div \frac{4}{5} = \frac{5}{2} \div \frac{4}{5} = \frac{5}{2} \times \frac{5}{4} = \frac{25}{8} = 3 \frac{1}{8} = 3.125[/tex]

6. Ans ;

[tex]9 \div 1 \frac{1}{9} = 9 \div \frac{10}{9} = 9 \times \frac{9}{10} = \frac{81}{10} = 8 \frac{1}{10} = 8.1[/tex]

7. Ans ;

[tex]2 \frac{1}{2} \div 3 \frac{1}{3} = \frac{5}{2} \div \frac{10}{3} = \frac{5}{2} \times \frac{3}{10} = \frac{3}{4} = 0.75[/tex]

8. Ans ;

[tex]7 \frac{1}{2} \div 1 \frac{2}{3} = \frac{15}{2} \div \frac{5}{3} = \frac{15}{2} \times \frac{3}{5} = \frac{9}{2} = 4 \frac{1}{2} = 4.5[/tex]

I hope I helped you^_^

The ratio of Mitchell's age to Connor's age is 8:5. In thirty years, the ratio of their ages will be 6:5. How much older is Mitchell than Connor now?

Answers

Answer:

9 years older

Step-by-step explanation:

The ratio of their ages is 8 : 5 = 8x : 5x ( x is a multiplier )

In 30 years their ages will be 8x + 30 and 5x + 30 and the ratio 6 : 5 , so

[tex]\frac{8x+30}{5x+30}[/tex] = [tex]\frac{6}{5}[/tex] ( cross- multiply )

5(8x + 30) = 6(5x + 30) ← distribute parenthesis on both sides

40x + 150 = 30x + 180 ( subtract 30x from both sides )

10x + 150 = 180 ( subtract 150 from both sides )

10x = 30 ( divide both sides by 10 )

x = 3

Then

Michell is 8x = 8 × 3 = 24 years old

Connor is 5x = 5 × 3 = 15 years old

Mitchell is 24 - 15 = 9 years older than Connor

Geometry, please answer question ASAP

Answers

Answer:

66

Step-by-step explanation:

since BD and BC are congruent, angle C and angle D are equal. this means 6x-9=3x+24. If you solve this equation you get x=11. If you plug it into either 6x-9 or 3x+24 you get 57. 180-(57+57)=66

Question 22 of 25
Use completing the square to solve this quadratic equation.
Check all that apply.
X^2-10x+25=2

Answers

Answer:

A and B

Step-by-step explanation:

Please let me know if you want an explanation for why this is the answer (comment on this answer). A lot of people don't actually read the explanations, so I wouldn't want to waste my time. However, if you would like it I would be more than happy to type one out for you. Thanks!

x^2-10x+25=2
x^2-10x+25-2=0
x^2-10x+23=0

Use the quadratic formula
x=-(-10) ±√(-10)^2 -4*1*23/2*1
x=10±√(-10)^2 -92/2
x=10±√100−92/2
x=10±√8/2
x=10+2√2/2
x=10-2√2/2

Answer:
x=5+√2

x=5-√2

HELP PLEASE!!
Which best describes the relationship between the lines
with equations -3x – 4y = 1 and -6x – 8y = 2?
A. Perpendicular
B. Neither perpendicular or parallel
C. Parallel
D. Same line

Answers

Answer:

same line

Step-by-step explanation:

its the exact same equation, but the second is multiplied by 2

55. (a) If alpha and beta are the roots of the equation xsquare+ px+q=0 and beta>alpha find the square of the
difference of the roots in terms of p and q.

Answers

Answer:

√(p²-4q)

Step-by-step explanation:

Using the Quadratic Formula, we can say that

x = ( -p ± √(p²-4(1)(q))) / 2(1)  with the 1 representing the coefficient of x². Simplifying, we get

x = ( -p ± √(p²-4q)) / 2

The roots of the function are therefore at

x = ( -p + √(p²-4q)) / 2 and x = ( -p - √(p²-4q)) / 2. The difference of the roots is thus

( -p + √(p²-4q)) / 2 - ( ( -p - √(p²-4q)) / 2)

= 0 + 2 √(p²-4q)/2

= √(p²-4q)

Ellie wants to double her savings
of $5000 by investing her money
for 20 years.
What interest rate does
she need to look for?
Give your answer to 1 d.p.

Answers

Answer: Interest rate she needs to look for is 5%

Step-by-step explanation:

P = 5000

A = 5000*2 = 10,000

T = 20 yrs

R = ?

now

I = A-P

I = 10,000-5000

I = 5000

Now

R = 100*I/P*T

R = 100*5000/5000*20

so, R = 5%

convert 3:4 to percentage​

Answers

Answer:

[tex]75\%[/tex]

Step-by-step explanation:

[tex] \frac{3}{4} \times 100\%[/tex]

100 is divided by 4, so you will get 25.

25 multiply 3, you will get 75%

So, the answer is 75%.

Answer:

Step-by-step explanation:

I'm not sure what you're asking for but I'll assume you mean what percentage is the three so:

There are 7 total parts bc 3 + 4 = 7.

3/7 is 42.857142857% repeating decimal

If you mean 3/4 then it's 75% bc 3/4 is 0.75

You flip a coin and roll a six-sided die. What is the
probability of flipping heads and rolling a number greater
than or equal to 5?

Answers

Answer:

The probability of flipping heads is 1/2

The probability of rolling 5 or more is 1/3.

So the total probability is 1/2 x 1/3 , which is 1/6.

Let me know if this helps!

Answer:

1/6

Step-by-step explanation:

The probability of flipping heads is 1/2

The probability of rolling 5 or more is 1/3.

So the total probability is 1/2 x 1/3 , which is 1/6.

Is (7,0) a solution to the equation y = x - 2?

Answers

Answer:

no

Step-by-step explanation:

because 7-7=0 and it doesn't subtract by 2

it is not equal to y=x-2

Answer:

no

Step-by-step explanation:

y = x-2

Let x = 7 and y=0

0 = 7-2

0 =5

This is not a true statement so (7,0) is not a solution

Circle experts...help! will give brainly to most detailed answer

Answers

Answer:

IU=161

Step-by-step explanation:

Angle Formed by Two Secants=  1/2 (difference of Intercepted Arcs)

42 = 1/2 (7m+5 - (3m-1))

Distribute the minus sign

42 = 1/2 (7m+5 - 3m+1))

Combine like terms

42 = 1/2 ( 4m+6)

Distribute the 1/2

42 = 2m+3

Subtract 3 from each side

42-3 = 2m+3-3

39 = 2m

Divide by 2

19.5 = m

The sum of the arcs = 360

IU+ 3m-1 + 7m+5 = 360

IU +10m+4 = 360

IU +10(19.5) +4 = 360

IU +195+4 = 360

IU = 360 - 199

IU=161

PLS HELP ON THIS QUESTIN I WILL MARK YOU AS BRAINLIEST IF YOU KNOW THE ANSWER!!
The bars in a _____________ do not touch since data is ______________.
A. bar graph ; continuous
B. bar graph ; discrete
C. histogram ; discrete
D. histogram ; continuous

Answers

Answer:

I believe it's D. histogram ; continuous

Step-by-step explanation:

I believe the answer is B

How many number less than 300 is exactly divisible by 8, 12, 18?​

Answers

Count how many multiples of 8, 12, or 18 there are in the range {1, 2, 3, …, 300}:

⌊300/8⌋ = 37

⌊300/12⌋ = 25

⌊300/18⌋ = 16

(where ⌊n⌋ denotes the floor of n, i.e. the largest integer that is smaller than n; for instance, 300/8 = 37.5, so ⌊300/8⌋ = ⌊37.5⌋ = 37)

Take pairwise LCMs, as well as the LCM of all three numbers:

LCM(8, 12) = LCM(2³, 2²×3) = 2³×3 = 24

LCM(8, 18) = LCM(2³, 2×3²) = 2³×3² = 72

LCM(12, 18) = LCM(2²×3, 2×3²) = 2²×3² = 36

LCM(8, 12, 18) = LCM(2³, 2²×3, 2×3²) = 2³×3² = 72

Count how many multiples there are of each of these LCMs that are less than 300:

⌊300/24⌋ = 12

⌊300/72⌋ = 4

⌊300/36⌋ = 8

Then, using the inclusion/exclusion principle, the number of numbers less than 300 that are exactly divisible by 8, 12, or 18 is

{multiples of 8} + {multiples of 12} + {multiples of 18}

- {multiples of 24} - {multiples of 72} - {multiples of 36}

+ {multiples of 72}

= 37 + 25 + 16 - 12 - 4 - 8 + 4 = 58


Can someone help me on these ones. PLEASE HELP ME !!

Answers

[tex]\huge\blue{ANSWER}:—[/tex]

Plz mark me as brainliest as I have solve all the questions for you

Answer:1 : x is 95/3

4 x is -32/10

7 b is 6

10 x is 20/7

13 x is 9/2

Step-by-step explanation:

2t(t-1)-t+1 factorise​

Answers

Answer:

this is the answer of this question

hoping it will help u

please help i need to finnish this!

Answers

Answer:

56

Step-by-step explanation:

f(x)=6*x^2+2 =6*3^2+2=56

Answer:

56

Step-by-step explanation:

6(x^2) + 2  = 0replace x =  3 => 6 x (3 ^ 2) + 2 = 56

if A ={1,2,3,4} and B={3,4,5,6} find A-B.​

Answers

Answer: {1,2} is the answer.

Step-by-step explanation:

A-B

{1,2,3,4}-{3,4,5,6)

= {1,2}

If LM = 9x + 27 and RS = 135, find x.

Answers

Answer:

x=12

Step-by-step explanation:

LM = RS

9x+27 = 135

Subtract 27 from each side

9x+27-27 =135-27

9x=108

Divide each side by 9

9x/9 = 108/9

x = 12

the boxes are equivalent so the one with a single dash is equal to the other with a single dash.

the one with 2 dashes is equal to the other with 2 dashes so on and so forth

SR=LM

LM=9x+27

RS=135

9x+27=135

so I solve it in my own weird way but you can solve it differently. 135-27=108

108/9=12

so your answer is 12

What is the volume of this figure?

Answers

72 + 72 + 180 = 324³

^o^........

what is the solution to the equation x² = 16?​

Answers

Answer:

x = 4, x = -4

Step-by-step explanation:

Step-by-step explanation:

Move terms to the left side

2=16

x^{2}=16x2=16

2−16=0

Use the quadratic formula

Simplify

Evaluate the exponent

Multiply the numbers

Add the numbers

Evaluate the square root

Multiply the numbers

=0±82

2

Separate the equations

To solve for the unknown variable, separate into two equations: one with a plus and the other with a minus.

=0+82

x= 0 + 8 over 2

=0−82 over 2

Rearrange and isolate the variable to find each solution

=4

x=4x=4

ans =−4

what is the answer ,and how do you solve it .please help

Answers

Answer:

10

Step-by-step explanation:

2000/ 2x = 10

Multiply each side by 2x

2000/ 2x = 10 *2x

2000 = 20x

Divide by 20

2000/20 = 20x/20

100 = x

Take the square root of each side

sqrt(100) = sqrt(x)

10 = sqrt(x)

Solve for x.
X-4 = 8
*
3

Answers

Answer:

The answer is X=28.

(3, -2) belongs to the solution set of the system of inequalities given below:

Answers

Answer:

T

Step-by-step explanation:

Substitute the x- coordinate into the right side of the inequality and compare the result to the y- coordinate.

[tex]\frac{1}{3}[/tex] (3) + 5 = 1 + 5 = 6

and - 2 < 6 ← True

2(3) + 1 = 6 + 1 = 7

- 2 < 7 ← True

Then (3, - 2) belongs to the solution set of the system

Please someone explain

Triangles and angles


X=______ degrees


X 48




96

Answers

Exterior Angle property = sum of interior opposite angle is equal to the exterior Angle

x= 48+96

x= 144°

Answer:

144°

Step-by-step explanation:

x is an exterior angle of the triangle.

Angles 96° and 48° are interior angles of the triangle that are not adjacent to angle x. Angles 96° and 48° are called the "remote interior angles" of exterior angle x.

Theorem:

The measure of an exterior angle of a triangle is equal to the sum of the measures of the remote interior angles.

x = 48 + 96

x = 144

Answer: 144°

50 percent of 120 is the same as 80 percent of what number?
A) 42
B) 45
C) 48
D) 52​

Answers

Answer:

75... but I don't see it down there

Step-by-step explanation:

equation:

0.5(120) = 0.8(x)

60 = 0.8x

60/8 = 0.1x

7.5 = 0.1x

x = 75

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

all sets to which the number 3/2 belongs.

1 rational numbers, real numbers


2 integers, rational numbers, real numbers


3 irrational numbers, real numbers


4 natural numbers, whole numbers, real numbers

Answers

Answer:

1

Step-by-step explanation:

as a fraction it is per definition a rational number.

and the real numbers are a superset of radical numbers.

but 3/2 is not a natural, integer or whole number, as they can all be written as numbers without digits after the decimal point.

and it is a a rational number not irrational, as that would be all numbers with digits after the decimal point, that cannot be expressed as fractions.

3.
In each box there are 22 eggs. How many eggs do I have if I have 12 boxes?

Answers

Number of eggs = 12x22 =264
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