hello please help i’ll give brainliest

Answer: 13.5/12.5

Step-by-step explanation:

Based on the weight requirement that the ball should be inflated to, the probability that a random ball will not meet this specification is 0.0456.

The balls are to be inflated to reach between 12.5 to 13.5 pounds.

The probability they won't meet this specification is:

= 1 - ( P (Z₁₃.₅) - P (Z₁₂.₅) )

Z₁₃.₅ = (13.5 - 13) / 0.25

= 2

Z₁₂.₅ = (12.5 - 13) / 0.25

= -2

From the Z table, P (Z₁₃.₅) is therefore 0.9772 and P (Z₁₂.₅) is 0.0228.

The probability that the inflation requirement is not met is:

= 1 - (0.9772 - 0.0228)

= 0.0456

Find out more on probability at https://brainly.com/question/11902251.

Answer: O-22, C-6, H-76

Step-by-step explanation:

Given

There are 164 atoms available

Suppose there are x oxygen atoms

So, carbon atoms are 3x

Hydrogen atoms are 3x+10

The sum of the three must be equal to 164

[tex]\Rightarrow x+3x+3x+10=164\\\Rightarrow 7x=154\\\Rightarrow x=22[/tex]

[tex]\text{Oxygen atoms}=22\\\text{Carbon atoms}=3\times 22\\\quad \quad =66\\\text{Hydrogen atoms}=66+10\\\quad \quad=76[/tex]

Answer: 5x + 5 = 30

Step-by-step explanation: All equations have a equal sign at the end. Hope this helped!

Answer:47250

Step-by-step explanation:just multiply them

Answer:

The rate of change is to mathematically describe the percentage change in value over a period of time

Answer:

81

Step-by-step explanation:

Answer:

Cocomelon

Their videos are pretty good!

Answer:

Calculate the unknown defining height, slant height, surface area, side length and ... Online calculators and formulas for a pyramid and other geometry problems. ... h = height s = slant height a = side length. P = perimeter of base e = lateral .

Step-by-step explanation:

Answer:

The positive angle less than 360° that is coterminal with -215° has a measure of 145°.

Step-by-step explanation:

From Geometry, we know that angles form a family of coterminal angles as function of number of revolutions done on original angle. We can represent the set of all coterminal angles by means of the following expression:

[tex]\theta_{c} = \theta_{o} + 360\cdot i[/tex], [tex]i \in \mathbb{Z}[/tex] (1)

Where:

[tex]\theta_{o}[/tex] - Original angle, in sexagesimal degrees.

[tex]\theta_{c}[/tex] - Coterminal angle, in sexagesimal degrees.

[tex]i[/tex] - Coterminal angle index, no unit.

If we know that [tex]\theta_{o} = -215^{\circ}[/tex] and [tex]i = 1[/tex], then the coterminal angle that is less than 360° is:

[tex]\theta_{c} = -215^{\circ} + 360\cdot (1)[/tex]

[tex]\theta_{c} = 145^{\circ}[/tex]

The positive angle less than 360° that is coterminal with -215° has a measure of 145°.

Answer:

B.) teacher

Step-by-step explanation:

good luck!!!

can you give me brainliest pls im trying to level up lol

Answer:

Step-by-step explanation:

The dimension of boards to one decimal place is 0.9m * 0.7m

"Dimensions in mathematics are the measure of the size or distance of an object or region or space in one direction. In simpler terms, it is the measurement of the length, width, and height of anything.

Dimensions are generally expressed as:

Length

Breadth

Width

Height or Depth"

The correct dimension of board are to one decimal place is 0.9m * 0.66m

Hence, B is the correct option.

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Answer:

24.72 m

11.53 m

Step-by-step explanation:

Horizontal distance AB can be obtained from △ABC

From trigonometry :

Sin18° = opposite / hypotenus

Sin18° = AB / 80

AB = 0.3090169 * 80

AB = 24.72 m

The height BT, of tower from △ABT

From trigonometry :

Tan25° = opposite / Adjacent

Tan25° = h / 24.72m

h = Tan25 * 24.72

h = 11.527

h = 11.53 m

Hence, height of tower BT = 11.53 m

Answer: The table is shown in the attached image

The commas are not to be entered in any of the boxes. Just the numbers only.

=====================================================

Explanation:

"47 seventh graders were surveyed" means that 47 goes in the last value of the first row. This is the total of the 7th graders. Of this total, 19 pack their lunches (ie bring them from home). That indicates 47-19 = 28 seventh graders buy their lunch.

For row one, we have the values: 19, 28, 47 in that exact order when going from left to right.

------------------

We use the same idea for the 8th graders.

52 total eighth graders, 33 buy their lunch

52-33 = 19 pack their lunch

For row two, the values from left to right are: 19, 33, 52 in that exact order.

To get the values in row 3, we add up everything that's over top of it.

Meaning for column 1, we have 19+19 = 38 total students who pack their lunch. In column 2, there are 28+33 = 61 people who buy their lunch. Lastly, column 3 we have 47+52 = 99 students overall.

For row three, the values from left to right are: 38, 61, 99

Note that adding the first two items of row three gets us 38+61 = 99

It's not a coincidence that this is happening. This is just another way to get the grand total of 99. You could also add up the four values that are not in the total column or total row to get 19+28+19+33 = 99. Again, this is not a coincidence we end up with 99.

Refer to the table below to see a summary.

Answer:

2/15

Step-by-step explanation:

Probability calculates the likelihood of an event occurring. The likelihood of the event occurring lies between 0 and 1. It is zero if the event does not occur and 1 if the event occurs.

For example, the probability that it would rain on Friday is between o and 1. If it rains, a value of one is attached to the event. If it doesn't a value of zero is attached to the event.

Experimental probability is based on the result of an experiment that has been carried out multiples times

experimental probability that the next patient will be female and in

the age range 22-39 =  females in  the age range 22-39 / total number of patients

total number of patients = 56 / 420

To transform to the simplest form. divide both the numerator and the denominator by 28

2/15

Answer:

4.2 × [tex]10^{-1}[/tex]

Step-by-step explanation:

2.1 × [tex]10^{-3}[/tex] × 2 × [tex]10^{2}[/tex]

2.1 + 2 = 4.2

2 - 3 = - 1

4.2 × [tex]10^{-1}[/tex]

Answer:

2.1x^10+−3x^104

Step-by-step explanation:

Answer:

x = 1, y = 3

Step-by-step explanation:

Given:

x - y = -2

2x + y = 5

First, add y on both sides for the first equation.

x = y - 2

Then, plug in x into the second equation.

2(y -2) + y = 5

2y - 4 + y = 5

3y = 9

y = 3.

Next, now that you've found y, plug it into either the first or second equation to solve for x. I'll be using the second equation.

2x + 3 = 5

2x = 2

x = 1.

Ans: x = 1, y = 3

Answer:

m of angle A is 60 degrees, m of angle B is 80 degrees, and m of angle C is 40 degrees

Step-by-step explanation:

Given: BD=DC, this means the triangle BDC is isoceles because of the two equal sides.

Using the base angles Thereom we can tell that m of angle C is equal to m of angle 2.

Given that m of angle BDC is 100 degrees, using sum of angles in triangle we develop the equation

m of angle C= 180-100-angle 2

since angle 2 is equal to angle C we see that they are bothe equal to 40 degrees.

Now for B, we can easily tell it is 80 degrees since we found that angle 2 is 40 degrees and angle 1 is equal to angle 2 40+40=80 degrees

Lastly, for A we can tell it is 60 degrees, the reason is we found angle 1 is 40 degrees and we know that BDA=80 using supplemantary angles to BDC.

Develop the equation A=180-(80+40)=60 degrees

The value of measure of ∠A is, 60° , ∠B is 80° and ∠C is 40°.

A triangle is a three sided polygon, which has three vertices and three angles which has the sum 180 degrees.

We have to given that;

In Triangle ABC,

D belongs to AC,

BD = DC,

Measure of angle 1 = measure of angle 2,

Measure of angle BDC = 100 degrees.

Here, we have;

⇒ BD = DC

Hence, We get;

⇒ ∠DBC = ∠BCD

(By opposite angle of equal side are equal.)

Now, In ΔBDC;

⇒ ∠BDC + ∠DBC + ∠BCD = 180°

⇒ 100° + 2∠DBC= 180°

⇒ 2 ∠DBC = 180° - 100°

⇒ 2 ∠DBC = 80°

⇒ ∠DBC = 40°

⇒ ∠DBC = ∠BCD = ∠2 = 40°

Hence, ∠ C = 40°

Here, We have to given that;

⇒ ∠1 = ∠2

Hence, ∠1 = ∠2 = 40°

Now, We have by linear pair angle;

⇒ ∠BDC + ∠BDA = 180°

⇒ 100° + ∠BDA = 180°

⇒ ∠BDA = 80°

In ΔABD;

⇒ ∠ABD + ∠BDA + ∠BAD = 180°

⇒ 40° + 80° + ∠BAD = 180°

⇒ ∠BAD = 180° - 120°

⇒ ∠BAD = 60°

⇒ ∠A = 60°

So, ∠ B = ∠1 + ∠2

           = 40° + 40°

           = 80°

Thus, We get;

The value of measure of ∠A is, 60° , ∠B is 80° and ∠C is 40°.

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Answer:

3rd jump

Step-by-step explanation:

The distance jumped is given in the table attached. to get the jump that do not round up to 4.7 meters, we round each of the jump to one decimal place and then select the jump that does not round up to 4.7 meters.

Therefore rounding off gives:

1st jump: 4.746 meters = 4.7 meters to one decimal place

2nd jump: 4.680 meters = 4.7 meters to one decimal place

3rd jump: 4.647 meters = 4.6 meters to one decimal place (does not round to 4.7 meters)

4th jump = 4.733 meters = 4.7 meters to one decimal place

Answer:

[tex]x = 25.9[/tex]

Step-by-step explanation:

Apply law of sines.

[tex] \frac{23}{ \sin(22) } = \frac{x}{ \sin(25) } [/tex]

[tex] \frac{23}{ \sin(22) } \times \sin(25) = x[/tex]

[tex]x = 25.9[/tex]

Answer:

25.9

Step-by-step explanation:

By sine rule:

[tex] \frac{BC}{ \sin 25 \degree} = \frac{23}{ \sin 22 \degree} \\ \\ BC = \frac{23 \sin 25 \degree}{ \sin 22 \degree} \\ \\ BC = \frac{9.72022002}{ \sin 22 \degree} \\ \\BC = 25.947808156 \\ \\ BC \approx \: 25.9[/tex]

Answer: s ≤ 60

Step-by-step explanation:

The common inequality signs include:

> which is greater than

< which is less than

= which is equal to

≥ which is greater than or equal to

≤ which is less than or equal to

Since the speed limit is 60 miles per hour, it simply means that the speed limit is less than or equal to 60 miles per hour. This will be:

s ≤ 60

The above means the speed is less than or equal to 60 miles per hour

Answer:

It's 4800, just multiply 60x80 bc the population is 80x larger than the sample of 100

Answer:

DE = 39.64840676

CE = 35.3269891

Step-by-step explanation:

SOH CAH TOA

Thus,

sin(27) = 18/DE

tan(27) = 18/CE

DE = 39.64840676

CE = 35.3269891

Answer:

The approximate distance between points D and E is 8.25

Step-by-step explanation:

The figure is as follows :

To find - What is the approximate distance between points D and E ?

Solution -

By Pythagoras Theorem, we get

(DE)² = (FE)² + (DF)²

        = (8)² + (2)²

        = 64 + 4

        = 68

⇒(DE)² = 68

⇒DE = √68

⇒DE = 8.246

∴ we get

The approximate distance between points D and E is 8.25

Answer:

D

Step-by-step explanation:

the only one that make sense

Answer:

Im pretty sure the answe is C

Step-by-step explanation:

im very bad at explaining im sorry

Answer:

Katherine would have $109.54 more than Stella.

Step-by-step explanation:

Giving the following information:

Stella:

Initial investment (PV)= $6,100

Interest rate (i)= 0.065/12= 0.0054 per month

Number of periods (n)= 7*12= 84

Katherine:

Initial investment (PV)= $6,100

Interest rate (i)= 0.06625/4= 0.0167

Number of periods (n)= 7*4= 28

To calculate the future value, we need to use the following formula:

FV= PV*(1 + i)^n

Stella:

FV= 6,100*(1.0054^84)

FV= $9,589.5

Katherine:

FV= 6,100*(1.0167^28)

FV= $9,699.04

Difference= $109.54

Katherine would have $109.54 more than Stella.

Answer:

19.2

Step-by-step explanation:

12 squared + 15 squared= C squared

144 + 225 = C squared

369 = C squared

Do square root of 369, which is

19.2

Answer:

3.75 cm

Step-by-step explanation:

20 * x = 5 * 15

20x = 75

Divide both sides by 20

x = 75/20

x = 3.75

Answer:

A = -1 - √6

B = -1 + √6

Step-by-step explanation:

To find the 2 roots for the algebraic expression below we use Almighty formula

x² + 2x - 5

Formula = -b ± √b² - 4ac/2a

Where: ax²+ bx + c

a = 1, b = 2, c = -5

Hence:

-2 ± √2² - 4 × 1 × -5/2 × 1

-2 ± √4 + 20/2

-2 ± √24/2

Finding the roots

-2 ± √4 × 6/2

-2 ± 2√6/2

Hence

-2/2 ± 2√6/2

-1 ± √6

-1 - √6 , -1 + √6

Therefore the two roots are

Option A = -1 - √6 and Option B = -1 + √6

Answer:1/3

Step-by-step explanation:

He gave away 2/6 of the erasers. You can simplify that by doing 2 divided by 2 6 divided by 2 which makes it 1/3. Daniel gave away 1/3 of the erasers.

Answer:

1/3

Step-by-step explanation:

he gave one to p.j=1/6

he gave one to Ken=1/6

1/6 +1/6=2/6=1/3