I need help with this question ​

Answer:

its not just you, happening to me too and i think its something wrong with brainly not us

Step-by-step explanation:

Answer:

do you have a brainly account that you look up questions on?

Step-by-step explanation:

A few other people are having this problem also.

Answer:for area you times them and for perimiter you add

Step-by-step explanation:

hope you understand

Answer:

y-2

Step-by-step explanation:

Answer:

I forgot to screenshot the graph... Sorry

Anyway, the answer is y-intercept -2

Step-by-step explanation:

Answer:

144.6°

Step-by-step explanation:

180-35.4

144.6°

Answer:

144.6

Step-by-step explanation:

Supplementary angles add to 180

Let x be the unknown angle

x + 35.4 = 180

Subtract 35.4 from each side

x = 180-35.4

x =144.6

Answer:

11 buses

Step-by-step explanation:

Answer:

i think its 0 D

Step-by-step explanation:

Answer:

4*x=-20

-4+x=-20

There is not one answer for the product x= -6 and for the sum x= -24.

Step-by-step explanation:

x*4=-20

x= -20/4

x = -6

-4+x=-20

x = -24

Answer:

22.375" × 34" is the bigger size for a poster

Answer:

Mass of blackcurrants = 750 gram

Total conserve = 1,050 gram

Step-by-step explanation:

Given:

Mass of redcurrants = 300 gram

Blackcurrants : Redcurrants = 5 : 2

Find:

Mass of blackcurrants

Total conserve

Computation:

Mass of blackcurrants = 300 x (5/2)

Mass of blackcurrants = 750 gram

Total conserve = Mass of blackcurrants + Mass of redcurrants

Total conserve = 750 + 300

Total conserve = 1,050 gram

The value of x after solving the equation 2log(x+86)=4 is: -9.83

The logarithmic function is an expression which we can write as, y = logₐx, where a>0 & x>0, It is the inverse of exponential function.

Formulae for logarithmic function are,

LogAB = LogA + LogB

Logₐaᵇ = b

Given that,

A logarithmic function

⇒ 2log(x+86) = 4

⇒  log(x+86) = 4/2

⇒  log(8x + 86) = 2

Now making both the expressions a power of e  

⇒  e^log(8x + 86)  =  e²

⇒  8x + 86 = e²

⇒  8x  = e² - 86

⇒  x = (e² - 86)/8

the value of e is approximately 2.7

⇒ x = -9.83

Hence, the value of x is -9.83

To know more about Logarithmic function check:

https://brainly.com/question/27389970

#SPJ1

Isabella's possible numbers can be represented by the compound inequality 15 ≤ 5n - 5 ≤ 50, which in interval notation is [4, 11].

Based on the given information, we can set up a compound inequality to represent the range of numbers that Isabella might be thinking of.

Let's denote the number Isabella is thinking of as 'n'.

The clue states that "5 less than 5 times his number is at least 15 and at most 50."

We can express this as:

15 ≤ 5n - 5 ≤ 50

To solve this compound inequality, we add 5 to all three parts of the inequality:

15 + 5 ≤ 5n - 5 + 5 ≤ 50 + 5

20 ≤ 5n ≤ 55

Finally, dividing all parts of the inequality by 5:

20/5 ≤ n ≤ 55/5

4 ≤ n ≤ 11

Therefore, Isabella's number, 'n', lies in the range [4, 11] in interval notation. In summary, the compound inequality 15 ≤ 5n - 5 ≤ 50 represents the range of numbers that Isabella might be thinking of. The interval notation [4, 11] indicates that her number could be any value between 4 and 11, inclusive.

Know more about inequality here:

https://brainly.com/question/30238989

#SPJ8

The sampling method is independent as the rain samples were taken from two different locations. As the sample sizes are small, they can be approximately considered normal distributions and t-test can be used to check the hypothesis.

Used in inferential statistics, t test can be used when we need to compare two different sets value to check if their is a significant difference between them.

T tests can be paired and dependent, like measuring the weight of a same patient before and after a diet or they can be unpaired an independent. Unpaired datasets might sometime have the same variance or unequal variance. Different formular are used to calculate the t-tests involving different datasets. To prove a null or alternate hypothesis, the t values must be checked with t- test table.

As the following datasets measuring rain pH at different cities are indepent and have unequal variances, the following formula should be used for calculating the t-score and the degree of freedom:

T-value= \(\frac{Mean1-Mean2}{\sqrt(\frac{var1}{n1})+(\frac{var2}{n2})}\)

Substituing the values of Mean1=4.77; Mean2=4.50, Var1=0.1366, Var2= 0.0242, n1= 12, n2= 14, we get the t value as 2.27

Now calculating degree of freedom, which comes around

Δ=14

At x=0.05, from the table, t value=2.145

Hence as the calculated t vale is more than critical t value, null hypothesis can be rejected and alternate hypothesis can be accepeted proving that their is a significant visible difference in pH in the rain of Chicago and Huston.

To know more about T-tests, follow the link: https://brainly.com/question/29745423

#SPJ4

Answer:

296 miles

Step-by-step explanation:

\( \frac{111}{x} = \frac{3}{8} \\ 3x = 888 \\ x = 296\)

Answer:

2.16•x is up ur function

21. 6 feet in 10 minutes

Step-by-step explanation:

when u multiply by ten u move the decimal to the right one place

Answer:

this is what u need .........

Answer: Half of them are even and half of them are odd.

Step-by-step explanation:

The even numbers are 6, 12, 18, 24, and 30. An even number is defined as a number that is divisible by 2, meaning it has no remainder when divided by 2. For example, 6 divided by 2 equals 3 with no remainder, so 6 is even.

The odd numbers are 3, 9, 15, 21, and 27. An odd number is defined as a number that is not divisible by 2, meaning it has a remainder of 1 when divided by 2. For example, 9 divided by 2 equals 4 with a remainder of 1, so 9 is odd.

Therefore, out of the given numbers, half of them are even and half of them are odd.

________________________________________________________

Answer:

B) $85,167

Step-by-step explanation:

u got discount 45% so u just have to pay 55% of it

cost = 55% x $154,85 = $85,1675

(a) The sequence generated in given situation that is water left after each filling can be written as an arithmetic progression with first term 124 and common difference = -4 , first four terms are 124, 120, 116, 112  

(b) The function in explicit form that represents this sequence : aₙ = 128 -4n

(c) Water left after filling 16 cups is 64 ounces.

An arithmetic progression  is a sequence of numbers in which the consecutive numbers are at equal intervals or we can say that the difference between any two consecutive terms is same. This same difference is called common difference.

Let a be the first term of arithmetic progression and d be the common difference then the nth term of the arithmetic progression = a+ (n-1)d

Given that the team track manager brought a water cooler with 128 ounces of cold water. He passes out water during practice. Each cup of water holds 4 ounces.

Therefore after giving one cup of water he will 4 ounce out of 128 ounces . So on he will keep losing 4 ounce after each pass. Therefore the water left after each pass can be  written as an arithmetic progression given as :

128-4, 128-4-4, 128 -4-4-4, .128-4-4-4-4,.....( recursive form)

124, 120,116,12,.....

Or the first term of this Arithmetic progression is 124 and common difference = -4   And first four fours terms are 124,120,116,112

We can also write an recursive formula for this arithmetic progression such as :

Water left after filling n cups = aₙ = 128 -4n

Thus, water left after filling 16 cups = a₁₆ = 128 - 4(16) = 64 ounces

Hence, for the given situation water left after each filling can be written as an arithmetic progression with first tern 124 and common difference -4 , first four terms are 124, 120, 116, 112 . The function in explicit form that represents this sequence is  aₙ = 128 -4n and water left after filling 16 cups is 64 ounces.

Also, Learn more about arithmetic progression from below link:

https://brainly.com/question/14320206

#SPJ1

Answer:

11371.4

Step-by-step explanation:

delta math

The length of n is 11373.1 inches

For given example,

As we know for ΔNOP,

\(\frac{n}{sinN}=\frac{0}{sinO}=\frac{p}{sinP}\)

We know that the sum of all angle of triangle is 180°

For ΔNOP,

⇒ ∠N +∠O + P = 180°

⇒ 16° + ∠O + 163° = 180°

⇒ ∠O = 180 - 179

⇒ ∠O = 1°

The length of n is,

\(\frac{n}{sinN}=\frac{0}{sin1}\\\\n(sin1)=0(sin16)\\\\0.01745(n)=720(0.27564)\\\\n=\frac{198.4608}{0.01745}\\\\n=11373.112\\\\n\approx 11373.1~in.\)

Therefore, the length of n is 11373. 3 inches

Learn more about triangle here:
https://brainly.com/question/20521780

#SPJ2

Answer:

3/8

Step-by-step explanation:

1/2=⁴/8 and ⁴/8-¹/8=³/8

The vague pronoun "it" can be replaced by -

Option D: the spaceship

What is a pronoun?

An alternative to a noun is a pronoun. In order to avoid using the noun more than once in a paragraph or piece of writing, it replaces. Singular and plural pronouns can be used. The verb in the sentence should be utilised in keeping with the specific pronoun form that is being employed.

The sentence is "Did you see it in the sky last night?".

"The spaceship" is the most appropriate option to replace the ambiguous pronoun reference in this statement.

Did you see it in the sky last night? is a vague question because "it" could refer to a variety of sky-observed objects.

The language becomes clearer and more precise by swapping "it" for "the spaceship," referring specifically to a particular item observed in the sky.

Therefore, the spaceship is the correct choice.

To learn more about pronoun from the given link

https://brainly.com/question/26257764

#SPJ1

Answer:

14.4

Step-by-step explanation:

1) 16^2-7^2=207

2) square root of 207 is 14.4 (to 1 decimal place).

Answer:

he point (-1, 0) is a valid solution, and the inequality is correctly written

Step-by-step explanation:

There are three standard forms for linear inequalities:

Standard form: Ax + By > C

Slope-intercept form: y > mx + b

Point-slope form: y - y1 > m(x - x1)

To write an inequality in standard form, you need to know the coefficients of the variables (A and B) and the constant term (C). You can find these values by examining the slope and the y-intercept of the line representing the inequality. For example, suppose the graph of the inequality shows the solution set to be all the points that lie above the line y = 2x + 1. To write this inequality in standard form, we can set A = 2, B = 1, and C = 1. The resulting inequality is 2x + y > 1. To check our work, we can substitute a test point, such as (-1, 0), into the inequality to see if it is a valid solution. In this case, we have 2(-1) + 0 > 1, which simplifies to -2 > 1, which is not true. Therefore, the point (-1, 0) is not a valid solution, and the inequality is correctly written.

To write an inequality in slope-intercept form, you need to know the slope (m) and the y-intercept (b) of the line representing the inequality. For example, suppose the graph of the inequality shows the solution set to be all the points that lie above the line y = 2x + 1. To write this inequality in slope-intercept form, we can set m = 2 and b = 1. The resulting inequality is y > 2x + 1. To check our work, we can substitute a test point, such as (-1, 0), into the inequality to see if it is a valid solution. In this case, we have 0 > 2(-1) + 1, which simplifies to 0 > -2 + 1, which is true. Therefore, the point (-1, 0) is a valid solution, and the inequality is correctly written.

To write an inequality in point-slope form, you need to know the slope (m) and a point (x1, y1) on the line representing the inequality. For example, suppose the graph of the inequality shows the solution set to be all the points that lie above the line y = 2x + 1. To write this inequality in point-slope form, we can choose a point on the line, such as (0, 1), and set x1 = 0 and y1 = 1. The slope of the line is m = 2, so the resulting inequality is y - 1 > 2(x - 0). This simplifies to y > 2x + 1, which is the same as the inequality written in slope-intercept form. To check our work, we can substitute a test point, such as (-1, 0), into the inequality to see if it is a valid solution. In this case, we have 0 > 2(-1) + 1, which simplifies to 0 > -2 + 1, which is true. Therefore, the point (-1, 0) is a valid solution, and the inequality is correctly written.

Answer:

$600

Step-by-step explanation:

Answer:

4•8 feet

Step-by-step explanation:

Distance= first floor × second ÷ escalator

Distance= 12feet × 12feet ÷ 30 feet

= 12×12÷30

= 4•8 feet

Answer:

Use Pythagorean to find x:

The percentage of students that have scored more than you is 1.39%

a) Probility that people scored more than Nancy = P(X>1390) = 1- P(X<1390).

Now z= (1390-950)/200

z= 2.2

P(Z<2.2) = 0.9861

So 1- P(X<1390) = 1 - P(Z<2.2) = 1 - 0.9861 = 0.0139

= 1.39 %

Let P1 be the % of people who score below 1100 and P2 be the % of people who scored below 1200

Then % of students between scores of 1100 and 1200 = P2 - P1

Z (X=1100) =0.75 and Z (X=1200) = 1.25

P1 = P(X<1100)= P (Z< 0.75) =0.7734

P2 = P(X<1200)= P (Z< 1.25) =0.8944

Then % of student between score of 1100 and 1200 = P2 - P1 = 0.8944 - 0.7734 = 0.121 = 12.10%

Middle 87.4 % score means that a total of 12.6 % of the population is excluded. That is 6.3% from both sides of the normal curve. So the minimum value for the middle 87.4% will the one which is just above 6.3% of the population i.e. it will have value x such that P(X<x)= .063.

z value (for P(X<x)= .063) = (-1.53)

But Z= (x-u)/ \sigma from here calculating x, x=644

The minimum value of the middle 87.4% score is 644

The maximum value for the middle 87.4 % of the scores will be the one that has 6.3% scores above it, i.e. it will have value x such that P(X>x)= .063.

P(X<x)= 1 -P(X>x)= 1 - 0.063 = 0.937.

Z value (for P(X<x)= 1.53

But Z= (x-u)/ \sigma from here calculating x, x=1256

The maximum value of the middle 87.4% score is 1256

Z value for (X=1432)= 2.41

P(Z<2.41) =0.9920

It means that 99.2 % of scores are less than 1432

So only 0.8% of scores are higher than 1432

but , 0.8% = 165

So 100% = 20625

20625 students took SAT

Learn more about probability on:

https://brainly.com/question/24756209

#SPJ1

Answer:

1.2 pounds

Step-by-step explanation:

We need to divide 6 by 5. This gives us 1.2. Therefore, each friend gets 1.2 pounds of jellybeans.

hope this helps :)

Determine the equilibirium position for the weight.

Determine the amplitude for the Simple harmonic function.

Determine the time taken by weight for the one complete cycle.

The formula for the angular frequency is,

Substitute the values in the formula to determine the angular frequancy of the weight.

Determine the general equation of motion of weight.

For t = 0.6 y = 11.

Determine the phase difference angle for t = 0.6 and y = 11.

So equation for the height above the floor as a function of time is,

Plot the graph of the height function.

Substitute 0 for t in the equation to determine the weight height at time zero.

So height above the floor at time zero is 14.02 cm.

Answer:

17 and a half days OR 18 days

Step-by-step explanation:

7 books : 8 days

20 books: x days

cross multiply

x = (8×20)÷ 7

x = 17.5

therefore

17 and a half days or 18 days

Answer:

(x+6)^2+(y-7)^2= 29

Step-by-step explanation:

general exqn-> (x-h)^2+(y-k)^2=(r)^2

here, h= -6 and k=7

r= √ 29

Therefore, exqn of circle=

(x+6)^2+(y-7)^2= 29

Answer:

(x + 6)² + (y - 7)² = 29

Step-by-step explanation:

the equation of a circle in standard form is

(x - h )² + (y - k )² = r²

where (h, k ) are the coordinates of the centre and r is the radius

here (h, k ) = (- 6, 7 ) and r = \(\sqrt{29}\) , then

(x - (- 6) )² + (y - 7)² = (\(\sqrt{29}\) )² , that is

(x + 6 )² + (y - 7 )² = 29