Helppppp pls again bro for Brainlyiest be sure to provide proof or nun

Answer:

6

Step-by-step explanation:

6 students are taking the b test because if you subtract 22 from 28 you get 6

Answer:

5

Step-by-step explanation:

The requried, 40 more student tickets than adult tickets were sold.

The equation model is defined as the model of the given situation in the form of an equation using variables and constants.

Here,

Let x be the number of adult tickets sold
Let y be the number of student tickets sold

We know that the total number of tickets sold is 230, so:

x + y = 230

We also know that the total amount collected from ticket sales is $995, so:

5.5x + 3.5y = 995

To solve for x and y, we can use the first equation to solve for one of the variables in terms of the other, and then substitute that expression into the second equation:

x + y = 230

y = 230 - x

5.5x + 3.5y = 995

5.5x + 3.5(230 - x) = 995

2x = 190

x = 95

So 95 adult tickets were sold. To find the number of student tickets sold, we can substitute this value of x back into the first equation:

x + y = 230

95 + y = 230

y = 135

Therefore, 135 student tickets were sold. To find how many more student tickets than adult tickets were sold, we can subtract the number of adult tickets from the number of student tickets:

135 - 95 = 40

Thus, 40 more student tickets than adult tickets were sold.

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Answer:

4

Step-by-step explanation:

Range is the difference between the highest and lowest values of a set of observations

Range = highest value - lowest value

10 - 6 = 4

Answer:

4

Step-by-step explanation:

simple.... are ya crazy

Answer:

(x + -6)(x + -6) = -36

Step-by-step explanation:

Simplifying

x2 + -12x + 72 = 0

Reorder the terms:

72 + -12x + x2 = 0

Solving

72 + -12x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-72' to each side of the equation.

72 + -12x + -72 + x2 = 0 + -72

Reorder the terms:

72 + -72 + -12x + x2 = 0 + -72

Combine like terms: 72 + -72 = 0

0 + -12x + x2 = 0 + -72

-12x + x2 = 0 + -72

Combine like terms: 0 + -72 = -72

-12x + x2 = -72

The x term is -12x.  Take half its coefficient (-6).

Square it (36) and add it to both sides.

Add '36' to each side of the equation.

-12x + 36 + x2 = -72 + 36

Reorder the terms:

36 + -12x + x2 = -72 + 36

Combine like terms: -72 + 36 = -36

36 + -12x + x2 = -36

Factor a perfect square on the left side:

(x + -6)(x + -6) = -36

Can't calculate square root of the right side.

The solution to this equation could not be determined.

MARK BRAINLIEST PLSSS

Answer:

maybe 6 1/2

Step-by-step explanation:

5 square inches is the area of triangle PQR in square inches.

A triangle is a three-sided polygon that consists of three edges and three vertices.

Given a triangle PQR.

We need to find the measurement is closest to the area of triangle PQR in square inches.

The PR is 2.6 inches in height and RQ is 4.1 inches.

We know that area of triangle is 1/2 times base and height.

By using ruler we calculated the height of triangle is 2.6 inches and base is 4.1 inches

The formula for area is

Area=1/2(Base×Height)

Plug in the values of base and height

=1/2(4.1×2.6)

=1/2(10.66)

=5.33

=5 square inches

Hence, 5 square inches is the area of triangle PQR in square inches.

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Answer:

C) square root of 2

Step-by-step explanation:

Irrational means that you can not write the number as a fraction. The square root of 2 is a never ending decimal so you can not write that as a fraction.

Hope this helped :)

Answer:

D

Step-by-step explanation:

Answer:

yes

Step-by-step explanation:

half of 6 is 3 so

Answer:

Option A is correct one

You can see the circle the shaded pattern is moving clock vise

If you are helped with my answer pls tag me brianliest I really want......... Plzz

THANK YOU

Answer:

31.7 min

Step-by-step explanation:

Given that;

N(t) = Noe^kt

No = amount of radioactive isotope initially present

N(t) = amount of radioactive isotope present at time t

t = time taken

k = decay constant

5.25 = 14e^-k16

5.25/14 = e^-k16

0.375 = e^=k16

ln(0.375) = =-16k

k = ln(0.375)/-16

k = 0.0613 min^-1

So time taken for 2 mg to remain;

2 = 14e^-0.0613t

2/14 = e^-0.0613t

0.1429 = e^-0.0613t

ln(0.1429) = -0.0613t

t = ln(0.1429)/-0.0613

t = 31.7 min

Answer:

range = 51

Step-by-step explanation:

Range = biggest - smallest

62 - 11 = 51

Answer:

A

Step-by-step explanation:

Answer:

Step-by-step explanation:

3x + 4y = 17

5x - 4y = 7

you can thus cancel out 4y

Hence

8x = 24

Hence x = 3

Substituting’

3(3) + 4y = 17

9 + 4y = 17

Hence 17 - 9/4

= y = 2

Hope this helps

Answer:

Since the calculated value of z= -1.496 does not fall in the critical region z < -1.645 we conclude that the new program is effective. We fail to reject the null hypothesis .

Step-by-step explanation:

The sample proportion is p2= 7/27= 0.259

and q2= 0.74

The sample size = n= 27

The population proportion = p1= 0.4

q1= 0.6

We formulate the null and alternate hypotheses that the new program is effective

H0: p2> p1   vs  Ha: p2 ≤ p1

The test statistic is

z= p2- p1/√ p1q1/n

z= 0.259-0.4/ √0.4*0.6/27

z=  -0.141/0.09428

z= -1.496

The significance level ∝ is 0.05

The critical region for one tailed test is z ≤ ± 1.645

Since the calculated value of z= -1.496 does not fall in the critical region z < -1.645 we conclude that the new program is effective. We fail to reject the null hypothesis .

Answer:

-60

Step-by-step explanation:

Answer:

14

Step-by-step explanation:

1/9(3)^4+5

1/9*81+5

9+5

14 is your answer

Answer:

n = 34

Step-by-step explanation:

2{(24- ( 3 + 4)) =n

2{(24 - 7) =n

2 x 17 = n

34 = n

swap the sides

n = 34

Answer:

4 1/2

Step-by-step explanation:

how many times can 2 go into 8 it can go in 4 Times so 4 on the side and 1/2

Answer:

The only way to do it is to turn it into a mixed fraction. You do that by dividing 8 and 2. It doesn't come in a fraction, so your ans should be 4

Mark me brainliest :))

Answer:false, true,true, false

Step-by-step explanation:

Answer:

26 roses

Step-by-step explanation:

89-11 = 78

78/3 = 26

Answer:

d. 313.33

Step-by-step explanation:

please rank brainliest if possible:)

Answer:

5.33 Seconds

Step-by-step explanation:

This is because you have to do the quadratic equation and solve.

The time required to hi the water is 5.33 seconds.

A quadratic equation is a second-order polynomial equation in a single variable x as ax^2+bx+c=0 with a ≠ 0 . A quadratic equation as an equation of degree 2, meaning that the highest exponent of this function is 2.

For the given situation,

The function is h(t)= -16t^2+16t+370

The roots of this function can be found by using the formula,

[tex]t=\frac{-b+\sqrt{b^{2}-4ac } }{2a}[/tex] or [tex]t=\frac{-b-\sqrt{b^{2}-4ac } }{2a}[/tex]

Here, a=-16, b=16, c=370

⇒ [tex]t=\frac{-16+\sqrt{16^{2}-4(-16)(370) } }{2(-16)}[/tex] or [tex]t=\frac{-16-\sqrt{16^{2}-4(-16)(370) } }{2(-16)}[/tex]

⇒ [tex]t=\frac{-16+\sqrt{23936} }{-32}[/tex] or [tex]t=\frac{-16-\sqrt{23936} }{-32}[/tex]

⇒ [tex]t=\frac{-16+154.712}{-32}[/tex] or [tex]t=\frac{-16-154.712}{-32}[/tex]

⇒ [tex]t=\frac{138.712}{-32}[/tex] or [tex]t=\frac{-170.712}{-32}[/tex]

⇒ [tex]t=-4.33[/tex] or [tex]t=5.33[/tex]

Time cannot be negative. So the value is 5.33.

Hence we can conclude that the time required to hi the water is 5.33 seconds.

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Answer: 31500 cm^3

Step-by-step explanation:

Volume = Length x Width x Height

60 x 35 x 15= 31500

when we multiply three times it is known as cube /^3

answer is 31500 centimeters cube

Answer:

x² + (y - 4)² = 25

Step-by-step explanation:

you didn't list any equation

Here's one possible answer

x² + (y - 4)² = 25

Answer:

Step-by-step explanation:

x²+y²=25=5²

radius r=5

(x-0)²+(y-4)²=5^2

x²+(y-4)²=25