me need help on math

Answer:

x=5

Step-by-step explanation:

im close to ranking up btw

Answer:

X = 5

Step-by-step explanation:

All angles have to add up to 180°

Hope this helps. Pls give brainliest.

Answer:

3/8

Step-by-step explanation:

So, Leena eats 1/8 of the bread first.

Now, she gave 1/6 of the bread to EACH of her 3 friends.

So you will need to do 1/6*3, which is 3/6=1/2.

Now you want to do 1/8+1/2 = 1/8+4/8 = 5/8.

This means 5/8 of the bread is gone.

Now you will need to do 1-5/8 = 8/8-5/8=3/8.

Therefore, 3/8 of the bread is left.

I hope this helps!

Answer:

equation form: x=-131/8y -31/40

Step-by-step explanation:

this is addition/elimination

Step-by-step explanation:

(-2x+10y=25) × 2.5

-5x+25y=62.5

x-25y=3

-5x+x+25y-25y=62.5+3

-4x=65.5

x =65.5÷4

=16.375

16.375-25y=3

-25y=3-16.375

-25y=-13.375

y=- 13.375÷-25

=0.535

i tried.

Answer:

Yes. 34.79 is a rational number because it can be written as a fraction.

Step-by-step explanation:

Hoped this helped.

The graph of g(x) is shifted upwards by 6 units in relation to the graph of f(x)

From the question, we have

f(x) = x^2

g(x) = x^2 + 6

The function g(x) = x^2 + 6 is a transformation of the parent function f(x) = x^2.

Specifically, the transformation is a vertical shift of 6 units upwards. This means that every point on the graph of f(x) = x^2 is moved up 6 units to get the corresponding point on the graph of g(x) = x^2 + 6.

Visually, this means that the entire graph of g(x) is shifted upwards in relation to the graph of f(x).

Read more about transformation at

https://brainly.com/question/1548871

#SPJ1

The expected value in a binomial situation with n = 18 and π = 0.60 is E(X) = np = 18 * 0.60 = 10.8.

In a binomial situation, the expected value, denoted as E(X), represents the average or mean outcome of a random variable X. It is calculated by multiplying the number of trials, denoted as n, by the probability of success for each trial, denoted as π.

In this case, we are given n = 18 and π = 0.60. To find the expected value, we multiply the number of trials, 18, by the probability of success, 0.60.

n = 18 (number of trials)

π = 0.60 (probability of success for each trial)

To find the expected value:

E(X) = np

Substitute the given values:

E(X) = 18 * 0.60

Calculate the expected value:

E(X) = 10.8

learn more about binomial here:

https://brainly.com/question/31049218

#SPJ4

Answer:

y=1/2x-5

Step-by-step explanation:

Okay so first we do y2 - y1

-1 - (-3)

a negative minus a negative is just adding so its actually

-1 + 3 = 2

now we do x2 - x1

2 - 1 = 1

The slope is 1/2

If you look at the (0, -5) since x is a y the -5 is our y intercept

now we can make the equation

y=1/2x-5

Answer:

b

Step-by-step explanation:

The length of the curve defined by the equation y = x∫2 √(8t^4-1) dt, where 2 ≤ x ≤ 6, cannot be determined analytically.

To find the length of the curve defined by the equation y = x∫2 √(8t^4-1) dt, where 2 ≤ x ≤ 6, we can use the arc length formula. The arc length formula for a curve given by y = f(x) over the interval [a, b] is:

L = ∫[a, b] √(1 + (f'(x))^2) dx.

First, let's find the derivative of the function y = x∫2 √(8t^4-1) dt. We can apply the Fundamental Theorem of Calculus:

y' = d/dx (x∫2 √(8t^4-1) dt)

= ∫2 √(8t^4-1) dt.

Now, we can substitute the derivative back into the arc length formula:

L = ∫[2, 6] √(1 + (∫2 √(8t^4-1) dt)^2) dx.

To simplify the calculation, we can evaluate the integral inside the square root symbol first:

L = ∫[2, 6] √(1 + (∫2 √(8t^4-1) dt)^2) dx

= ∫[2, 6] √(1 + (∫2 √(8t^4-1) dt)^2) dx.

Unfortunately, the integral inside the square root cannot be solved analytically, and numerical methods would be needed to approximate the value of the integral. Therefore, we cannot find the exact length of the curve without resorting to numerical approximation techniques.

The integral inside the arc length formula does not have a closed-form solution, making it impossible to find the exact length of the curve using algebraic methods. Numerical approximation techniques, such as numerical integration, would be required to estimate the length of the curve.

Learn more about equation here:

https://brainly.com/question/29657983

#SPJ11

The child passes through 18π radians in the course of the carousel ride.

To determine the number of radians the child passes during the 6-minute ride on the carousel, we need to know the distance traveled in terms of radians.

Since there are 20 horses spaced evenly around the carousel, each horse is separated by an angle of 360/20 = 18 degrees or π/10 radians.

Therefore, during one rotation of the carousel, the child passes through 20π/10 = 2π radians. And since the carousel completes one rotation every 40 seconds, the angular velocity is 2π/40 = π/20 radians per second.

To find the total distance traveled in radians during a 6-minute ride, we need to multiply the angular velocity by the time elapsed.

6 minutes is equal to 360 seconds,

so the child passes through π/20 x 360 = 18π radians during the ride.

To learn more about : radians

https://brainly.com/question/29058626

#SPJ8

Answer:

x= (5,0) y= (0,1)

Step-by-step explanation:

The dimensions (in m) maximize its volume  is  mathematically given as

\(x=\frac{4\sqrt{3}}{3}\) m   for Lenght and Width

\(h=\frac{2\sqrt{3}}{3}\) m  for height

Generally, the equation for is  mathematically given as

The equation for the area is given as

\(A=x^2+4xh\\\\A=16=4xh\\\\ A=16-x^2\)

\(h=\frac{16-x^2}{4x^2}\)

Volume of box

\(V=x^2 *h\\\\V=x^2*(\frac{16-x^2}{4x^2})\\\\V=4x-x^3\)

Therefore, by differentiating V and making x the subject of the formula we have

\(V'=4-\frac{3x^2}{4}\)

Therefore, with V' =0

\(x^2=16/3\)

\(x^2=\sqrt{16/3}\\\\x=\frac{4}{\sqrt{3}}\\\\\)

\(x=\frac{4\sqrt{3}}{3}\)

Now we will sub the value of x to the h equation

\(\begin{aligned}&h=\frac{16-(\frac{4}{\sqrt{3}})^2}{4 (\frac{4}{\sqrt{3}})} \\\\&h=\frac{16-\frac{16}{3}}{\frac{16}{\sqrt{2}}} \\\\&h=\frac{2 \sqrt{3}}{3} \mathrm{~m}\end{aligned}\)

Now we differntite the derivate of V (V')

\(V''=\frac{-3x}{2}\\V''=\frac{3(\frac{4\sqrt{3}}{3})}{2} \\V''=-2\sqrt{3} < 0 \\\\\) at maximium

In conclusion, the dimensions (in m) maximize its volume.

\(x=\frac{4\sqrt{3}}{3}\)    for Lenght and Width

\(h=\frac{2\sqrt{3}}{3}\)   for height

Read more about volume

https://brainly.com/question/1578538

#SPJ4

Answer:

the 3rd answer is the one which can actually form a proper plot off of that sentence

Answer:

The 3rd choice

Cinderella we know is the name of a princess in a story not a plot.

"In the woods" doesn't completely describe a plot.

so the answer is "The big bad wolf wants to eat the pigs, so he blows down their houses."

Answer:

380

Step-by-step explanation:

5/100*x=19

x=19*100/5

The probability to select $5 bill when the first selected bill is $10 is given by 1/2.

Probability is the possibility to occur of an event.

In mathematical terms, probability can be defined as,

\(\text{Probability}=\frac{\text{The number of favorable case}}{\text{The total number of case}}\)

Given that, the number of total $5 bills = 3

the number of $10 bills = 4

Total number = 3+4 = 7

If the first drawn bill is $10, then the number of $10 bills = 4-1 = 3

Total number of bills =7-1 = 6

So the probability to select $5 bill when the first selected bill is $10 = 3/6 = 1/2

Hence, the probability to select $5 bill when the first selected bill is $10 is given by 1/2.

To know more about Probability refer to:

https://brainly.com/question/24756209

#SPJ9

Answer:

A. \( y_1 = -m(x_2 - x_1) + y_2 \)

Step-by-step explanation:

Given, slope formula = \( m = \frac{y_2 - y_1}{x_2 - x_1} \)

To find an equivalent equation, let's make \( y_1 \) the subject of the formula.

\( m = \frac{y_2 - y_1}{x_2 - x_1} \)

Cross multiply

\( 1(y_2 - y_1) = m(x_2 -x_1) \)

\( y_2 - y_1 = m(x_2 - x_1) \)

Subtract \( y_2 \) from both sides

\( y_2 - y_1 - y_2 = m(x_2 -x_1) - y_2 \)

\( - y_1 = m(x_2 - x_1) - y_2 \)

Divide both sides by -1

\( \frac{- y_1}{-1} = \frac{m(x_2 -x_1) - y_2}{-1} \)

\( y_1 = -m(x_2 - x_1) + y_2 \)

Answer:

there are 10 cards in each stack.

Step-by-step explanation:

if you add 48 (Jacksons cards) and 12 (his sisters cards) you will get 60 (all cards in total). and 60 (total number of cards) divided by 6 (number of piles) is 10. there will be 10 cards in each stack!

Answer:

as an instinct i thought that i should multiply 11 and 5, so im saying 55 different selections

Step-by-step explanation:

sorry if im wrong

Answer:

The height of cylinder is 20 inches

The approximate length of the midsegment parallel to xy is 6.63

The midsegment of a triangle is a line segment that connects the midpoints of two sides of the triangle and has the same length as each of the two sides.

To find the midpoint of a line segment, we average the x-coordinates and the y-coordinates of its endpoints.

Since the question stated that the midsegment is parallel to xy, we need to find midpoint of xw and yw.

First, let's find the midpoint of side xw:

Midpoint of xw : ((-14+10)/2, (20+4)/2) = (-2, 12)

Midpoint of yw : ((-14-2)/2, (20-4)/2) = (-8, 8 )

The length of a line segment between two points (x1, y1) and (x2, y2) in a two-dimensional coordinate system can be calculated using the distance formula:

d = √((x2 - x1)^2 + (y2 - y1)^2)

Length line of midpoint xw and midpoint yw :

√((-2-(-8))^2 + (12-(8))^2) = √(6^2 + 4^2) = √(36 + 8) = √44

So, the length of the midsegment is parallel to XY, which is approximately equal to √44 = 6.63

Learn more about midsegment of triangle here

https://brainly.com/question/21103382

#SPJ4

20 is the answer.

Step-by-step explanation:

Take a look at the given question,

"75% of what number is 15"

Let's substitute this "what number" as "x"

\(75\)%\( \times x = 15\)

\(→x = \frac{15}{75 \: percent} \)

\(→x = \frac{15}{ \frac{75}{100} } \)

\(→x = \frac{15}{0.75} \)

To make the denominator as positive for making calculations more easy, we get,

\(x = \frac{15 \times 100}{0.75 \times 100} \)

\(→x = \frac{1500}{75} \)

Now after doing the division, we get,

\(x = 20\)

Hence, 75% of 20 is 15.

Answer:

a

Step-by-step explanation:

a

The correct answer is option (a) n < 27. By dividing both sides of the inequality by -3, we get n > -27.

To solve the inequality -3n < 81, we divide both sides by -3. Remember that when dividing by a negative number, the direction of the inequality sign changes. Dividing both sides by -3 gives us n > -27. So, the correct answer is option (d) n > -27.

The reasoning behind this is that dividing by -3 reverses the inequality sign, which means that the less than ("<") sign becomes a greater than (">") sign.

Option (a) n < 27 is incorrect because dividing by -3 changes the direction of the inequality. Option (b) is stated to be wrong. Option (c) n = 27 is incorrect because the original inequality is strict ("<") and not an equality ("=").

Therefore, By dividing both sides of -3n < 81 by -3, we get n > -27. Therefore, the correct answer is option (a) n < 27.

To learn more about inequality click here brainly.com/question/30231017

#SPJ11

hi

40 students

30 read chemistry

20 read physics

so logical deduction is that 10 read chemistry and physics.  

So only 20 read only chemistry and only 10 read only physics.  

So read only chemistry is  20/40 = 1/2

Answer as a fraction =  1/2

Answer in decimal form = 0.5

Answer in percent form = 50%

All three represent the same idea, but in a different form.

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

Work Shown:

30 read chem, 20 read physics

30+20 = 50 read either one, but this is over 40, so 50-40 = 10 students must read both

From that,

30-10 = 20 read chem only

20-10 = 10 read physics only

This makes the venn diagram you see below

Divide the number of people who read chemistry only (20) over the total number of people (40). This gives 20/40 = 2/4 = 1/2

Then you would use your calculator to find 1/2 = 0.5 = 50%

Answer:

The half of 6 is 3 the half of 3 is 1.5 the half of 1.5 is 0.75

Answer:

3

Step-by-step explanation:

round both up to nearest 10

25.1 = 30

8 = 10

30 / 10 = 3

confirmation;

25.1 / 8 = 3.1375 i think it checks out

In the above mentioned similar triangles the length of DE is 5.25 cm.

A triangle is a three-sided polygon with three vertices. The triangle's internal angle, which is 180 degrees, is constructed.

Since triangles ABC and ADE are similar, their corresponding sides are proportional. We can use this fact to set up a proportion:

AB / AD = BC / DE

Substituting the given values, we get:

8 / AD = 6 / DE

Multiplying both sides by DE, we get:

8DE / AD = 6

Dividing both sides by 8/AD, we get:

DE = (6/8)AD

We need to find AD to solve for DE. To do this, we can use the fact that BD is an altitude of triangle ABC and triangle ADE is similar to triangle ABC. Therefore, triangle ABD is also similar to triangle ABC, and we can set up another proportion:

BD / AB = AD / AC

Substituting the given values, we get:

4 / 8 = AD / (8 + 6)

Simplifying, we get:

1/2 = AD / 14

Multiplying both sides by 14, we get:

AD = 7

Substituting this value back into the first equation, we get:

DE = (6/8)AD = (6/8)7 = 21/4 = 5.25

Therefore, the length of DE is 5.25 cm.

Learn more about similar triangles on:

https://brainly.com/question/14285697

#SPJ1

(4.) 8.64 m³ /min = 51,840 L/hr
To convert from m³ /min to L/hr, we need to multiply the value by 60. Therefore, we have:
8.64 m³ /min × 1000 L/m³ × 60 min/hr = 51,840 L/hr
Therefore, 8.64 m³ /min is equal to 51,840 L/hr.

(5.) 208 MPa * 9.9 L = 1,854.48 ft-lbf
To convert from MPa * L to ft-lbf, we need to multiply the value by 7.38. Therefore, we have:
208 MPa * 9.9 L * 7.38 ft-lbf/MPa/L = 1,854.48 ft-lbf
Therefore, 208 MPa * 9.9 L is equal to 1,854.48 ft-lbf.

(6.) 5,000 N / 100 m/s = 11.184 lbₘ /min
To convert from N / m/s to lbₘ /min, we need to multiply the value by 3.725. Therefore, we have:
5,000 N / 100 m/s * 2.205 lbₘ/1 kg * 60 s/min * 3.725 lbₘ/1 N = 11.184 lbₘ/min
Therefore, 5,000 N / 100 m/s is equal to 11.184 lbₘ/min.

(7.) 1,200 km + 36,000 inches = 1,200,787.6 ft
To convert km to ft, we need to multiply the value by 3280.84. Therefore, we have:
1,200 km * 3280.84 ft/km = 3,937,008 ft
To convert inches to ft, we need to divide the value by 12. Therefore, we have:
36,000 in / 12 in/ft = 3,000 ft
Therefore, 1,200 km + 36,000 inches is equal to 1,200,787.6 ft.

L/hr and m³ /min: https://brainly.com/question/31070366

#SPJ11

The September finance charge will be greater by $0.41 if the purchase occurred on September 7th and the payment occurred on September 20th than the payment occurred on September 7th and the purchase occurred on September 20th.

The average daily balance totals each day's balance for the billing cycle and divides by the total number of days in the billing cycle.

When the payment occurred on 7th and purchase on 20th:

Balance in between September 1st and September 7th = $449.22

Balance in between September 7th and September 20th =449.22-85.33=$363.89

Balance in between September 20th and September 30th = 363.89+60.99

=$424.88

So, the balance on which interest will be applied according to the daily balance method = (449.22 * 6+363.89 *  13+424.89 *11)/30 = $403.322

Interest on this balance = 403.22 * (13.73/12) * (1/100) = $4.615

Similarly, when the payment occurred on the 20th while purchasing on the 7th:

The balance on which interest will be applied according to the daily balance method = (449.22 * 6 + 510.21 * 13 + 424.88*6)/30 = $395.911

Interest on this balance = $395.911 *(13.73/12) * (1/100) = $4.199

Difference between interests = $0.41

Therefore, the September finance charge will be greater by $0.41 if the purchase occurred on September 7th and the payment occurred on September 20th than the payment occurred on September 7th and the purchase occurred on September 20th.

To get more about the daily balance method visit:

https://brainly.com/question/9994944