I promise I will mark as brainiest my watch was correct at noon, after which it started to lose 17 minutes per hour until 6 hours ago it stopped completely. It now shows the time as 2.52pm what time is it now ?

Answer:

y = 1/2x -3

x=-2 ⇒ y =  -4

x=-1 ⇒ y =  -3.5

x=0 ⇒ y =  -3

x=1 ⇒ y =  -2.5

x=2 ⇒ y = -2

Step-by-step explanation:

Hi, to answer this question we have to isolate y:

x - 2y = 6

-2y =6-x

y = (6-x)/-2

y = -3+1/2x

y = 1/2x -3  

Now, we have to create a table with the next values (see attachment)

x=-2 ⇒ y = 1/2x -3 = 1/2(-2)-3= -4

x=-1 ⇒ y = 1/2x -3 = 1/2(-1)-3= -3.5

x=0 ⇒ y = 1/2x -3 = 1/2(0)-3= -3

x=1 ⇒ y = 1/2x -3 = 1/2(1)-3= -2.5

x=2 ⇒ y = 1/2x -3 = 1/2(2)-3= -2

Feel free to ask for more if needed or if you did not understand something.

Answer:

So for the table , .3 + .1 + .25 + .35= 1.

and 10 green pins. read my explanation please cause i worked a lot on this.

Step-by-step explanation:

So first we add the probability of purple and gray getting picked.

.35 + .25= .6

And we know that the probability of green is 3 times yellow.

So. yellow can be x. and the equation would look like this.

3x + x +.6= 1

x equals .1, because 3x + x or 3(.1) + .1= .4

So, .3 + .1 + .25 + .35= 1.

This should be enough info to complete the table. Now b.)

So we know 14 purple pins... and the probability of that is .35

so if 14 = .35 what equals .25?

(I'm going to convert these decimals into percents for problem b until we get the answer, and then i'll make it back to a decimal form)

Okay, so

14= 35%

and that means .4 equals 1% or .01 probability

so now we times .4 to 25% to find out how many green pins are there.

.4 * 25= 10

So there are 10 green pins.

Answer:

The answer is given below

Step-by-step explanation:

The equation of a quadratic function is given by:

ax² + bx + c where a, b and c are the coefficients of the quadratic equation. The value of a determines whether the graph opens up or down (if a is positive opens up and if a is negative opes down), the value of c determines the y intercept (if c is positive, we have a positive intercept and if c is negative the intercept is negative).

The chosen equation is -x² -4x + 5. Since it has y-intercept of 5 and opens down (coefficient of x² is -1)

Let us assume a vertical stretch of 4, the new equation becomes:

4(-x² -4x + 5)

-4x² - 16x + 20

-4x² - 16x + 20 = 0

a = -4, b = -16 and c = 20

Using the quadratic formula:

[tex]x=\frac{-b \pm \sqrt{b^2-4ac} }{2a}\\ x=\frac{-(-16) \pm \sqrt{(-16)^2-4(-4)(20)} }{2(-4)}=\frac{16 \pm 24}{-8} \\x= -5 \ or \ x=1[/tex]

Answer: 456.63 grams

Step-by-step explanation:

First, we know that we have 465 mL of a liquid.  Secondly, we know each mL of the liquid = 0.982 grams.  Thus, we can simply multiply 465*0.982 to get 456.63.

Hope it helps <3

The weight in grams of the liquid in a container is required.

The weight in grams of the liquid in the container is 456.63 grams.

m = Mass of liquid in container

V = Volume of liquid in container = 465 milliliter

[tex]\rho[/tex] = Density of liquid in container = 0.982 grams over milliliter

The relationship between mass, density and volume is given by

[tex]m=\rho V\\\Rightarrow m=0.982\times 465\\\Rightarrow m=456.63\ \text{grams}[/tex]

Learn more about density:

https://brainly.com/question/6838128

Answer:

9 roots

Step-by-step explanation:

(x+10)^9 = 0

If you would multiply it out, the highest power is x^9 so the equation has 9 roots

Solving (x+10)^9 =0

Taking the 9th root of each sdie

x+10 = 0

x = -10

The root is -10 with multiplicity of 9

It is approximately equal to 0.1111

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

To get this answer, we use the rule

[tex]x^{-k} = \frac{1}{x^k}[/tex]

The negative exponent tells us to apply the reciprocal to get the exponent to be positive.

So,

[tex](-3)^{-2} = \frac{1}{(-3)^2}\\\\(-3)^{-2} = \frac{1}{9}[/tex]

Squaring -3 means you square the negative as well

[tex](-3)^2 = (-3)*(-3) = 9[/tex]

Answer:

1/9

Step-by-step explanation:

(-3)^-2 would be better written as (-3)^(-2).

                                                                                       1

(-3)^(-2) would be easier to evaluate if written as -------------

                                                                                   (-3)^2

The final answer is 1/9.

Answer:

45,000,000 information could be transmitted in 30,000 packets

Explaination:

b=1500p

p= 30,000

so,

b= 1500 x 30000 = 45,000,000

A letter that is used in place of the unknowable value is called a variable.

If 20 packets exists required to transmit 30,000 bytes of information.

The definition of an equation in algebra is a mathematical statement that demonstrates the equality of two mathematical expressions. In mathematics, an equation is an expression or a statement that consists of two algebraic expressions that have the same value and are separated from one another by the equal symbol. It is an otherwise stated proposition that has been mathematically quantified.

A numerical statement with a variable in place of an unknown value is called an equation. A letter that is used in place of the unknowable value is called a variable.

Each packet has 1500 bytes of information

The amount of packets needed for 1 byte = 1/1500

Given:

number of bytes = 30,000

number  of packets needed = 30000/1500 = 20

Therefore, 20 packets exists needed to transmit 30,000 bytes of information.

To learn more about equation refer to:

https://brainly.com/question/22688504

#SPJ2

Answer:

[tex]\frac{x^2}{2}[/tex] square units        [one-half x squared square units]

Step-by-step explanation:

As shown in the diagram attached to this response,

Since a square has all sides equal, let the sides of the square be each of a units.

The area, A, of the square = a x a = a²

i.e

A = a²    --------------(i)

Now,

The diagonal is x units such that applying Pythagoras rule gives;

x² = a² + a²

x² = 2a²

a² = [tex]\frac{x^2}{2}[/tex]           ----------------(ii)

Substitute the value of a² in equation (ii) into equation (i) to get;

A = [tex]\frac{x^2}{2}[/tex]

Therefore, the area of the square is [tex]\frac{x^2}{2}[/tex] square units

Answer:

1/2x^2 square units

Step-by-step explanation:

Answer:

The coin toss does not appear to be  fair

Step-by-step explanation:

 From the question we are told that

     The  sample size is  [tex]n = 400[/tex]

      The number of game won by team that won the coin toss at the beginning of overtime  [tex]x = 194[/tex]

     The level of significance is  [tex]\alpha = 0.10[/tex]

The population proportion  is  evaluated as  

                  [tex]p = \frac{194}{400}[/tex]

                 [tex]p = 0.485[/tex]

Since the population proportion is  0.485 [tex]\approx[/tex] 0.5 which implies that the coin toss is  fair then

The Null hypothesis is  

         [tex]H_o : p = 0.485[/tex]

and  The Alternative hypothesis is  

        [tex]H_a : p \ne 0.485[/tex]

The test statistics is evaluated as follows

         [tex]t = \frac{[x + p] - [\frac{n}{2} ]}{\frac{\sqrt{n} }{2} }[/tex]

substituting values  

         [tex]t = \frac{[194 + 0.485] - [\frac{400}{2} ]}{\frac{\sqrt{400} }{2} }[/tex]

         [tex]t = -0.5515[/tex]

=>     [tex]|t| = 0.5515[/tex]

now the critical value of  [tex]\alpha[/tex] for a two tail test(it is two tailed because we are test whether the critical value is  less than or greater than the test statistics ) is  

         [tex]t_{\alpha } = 1.645[/tex]

This is usually found from the critical value table  

     Now comparing the critical values and the calculated test statistics we see that the critical value is greater than the test statistics hence the Null hypothesis is  rejected

   This  means that the coin toss is not fair  

Answer:

mn/100

Step-by-step explanation:

m% of n = m/100×n

= mn/100

Answer:

[tex]A=P+P\times S\%[/tex]

Step-by-step explanation:

For calculating the sales tax of a product, it is required to first multiply the original cost price of the product by the sales tax percentage.  

Once the sales tax has been computed add it to the original cost price in order to determine the total cost of the product.

The formula of final amount is:

[tex]A=P+P\times S\%[/tex]

Here,

A = final amount

P = original cost price

S = sales tax percentage

Answer:

1.$25.68

2.$51.36

3. 77.04

Step-by-step explanation:

I just took the test.

Answer:

 [tex]y = 250x + 4000[/tex]

 [tex]y = 400x + 400[/tex]

The slope of the second option(financing) is greater than the first option(leasing) meaning that the monthly payments for the financing option are greater than the monthly payments of leasing.

The y-intercept of the first option(leasing) is greater than the y-intercept of the second option(financing) meaning that the initial payment of the first option is greater than the initial payment of the second option.

Step-by-step explanation:

The general slope-intercept form is given by

[tex]y = mx + b[/tex]

First option leasing:

The given equation is

[tex]250x - y + 4000 = 0[/tex]

We need to convert this equation into the slope-intercept form.

 [tex]y = 250x + 4000[/tex]

where x represents the number of months of ownership and y represents the total amount paid for the car after ‘x' months.

The slope of the equation is 250 which represents the rate at which the value of y is increasing with respect to x.

When x = 0 then y = 4000 which represents the initial payment.

Second option financing:

We are given two points,  

[tex](x_1, y_1) = (0,400)[/tex]

[tex](x_2, y_2) = (10,4400)[/tex]

The slope of the equation(m) is given by

 [tex]m = \frac{y_2 - y_1}{x_2 - x_1} \\\\m = \frac{4400 - 400}{10 - 0} \\\\m = \frac{4000}{10} \\\\m = 400[/tex]

To find the value of the y-intercept (b),  substitute  any of the given point into the slope intercept equation

 [tex]y = mx + b \\\\y = 400x + b \\\\400 = 400(0) + b \\\\b = 400[/tex]

So the equation of the second option is

 [tex]y = 400x + 400[/tex]

The slope of the equation is 400 which represents the rate at which the value of y is increasing with respect to x.

When x = 0 then y = 400 which represents the initial payment.

Comparison in terms of slope:

The slope of first option leasing = 250

The slope of second option financing = 400

The slope of the second option(financing) is greater than the first option(leasing) meaning that the monthly payments for the financing option are greater than the monthly payments of leasing.

Comparison in terms of y-intercept:

The y-intercept of first option leasing = 4000

The y-intercept of second option financing = 400

The y-intercept of the first option(leasing) is greater than the y-intercept of the second option(financing) meaning that the initial payment of the first option is greater than the initial payment of the second option.

Answer:

The ratio is 4:12:15.

Step-by-step explanation:

we need to make the first ratio (Sylvia's to John's) comparable to second one (John's to Peter's). Since John is in both ratios, we use his number to make it the same. 3 and 4 can both be multiplied into 12. So, multiply the first ratio by 4 and the second by 3.

[tex](1:3) * 4 = 4:12\\(4:5) * 3 = 12:15[/tex]

Put it together, and you get 4:12:15.

Hope it helps :P

Answer:

The correct answer is:

[tex]+6x^{2}\\-9y^2[/tex]

Step-by-step explanation:

We are given the term:

[tex]3x^{2} +5y^{2} [\text{ \ }] +3 [\text{ \ }] +4y^{2} +6 = 9x^{2} -y^{2} +9[/tex]

We have to fill in to the empty spaces such that the above equation gets satisfied.

First of all, let us simplify the LHS (Left Hand Side):

[tex]3x^{2} +5y^{2} [\text{ \ }] +3 [\text{ \ }] +4y^{2} +6\\\Rightarrow 3x^{2} +5y^{2} +4y^{2} [\text{ \ }] [\text{ \ }] +6 +3\\\Rightarrow 3x^{2} +9y^{2} [\text{ \ }] [\text{ \ }] +9[/tex]

Now, let us equate the LHS and  RHS (Right Hand Side):

[tex]\Rightarrow 3x^{2} +9y^{2} [\text{ \ }] [\text{ \ }] +9 = 9x^{2} -y^{2} +9[/tex]

Equating the coefficients of [tex]x^{2}\ and\ y^{2}[/tex] in LHS and RHS:

One box will have value = [tex]9x^{2} -3x^{2} =+6x^{2}[/tex]

Other box will have value = [tex]-y^{2} -9y^{2} =-10y^{2}[/tex]

The correct answer is:

[tex]+6x^{2}\\-9y^2[/tex]

So, if we fill the boxes with above values, the expression will be simplified as given.

Answer:

The correct answer is B. Positive 6 x squared and Negative 10 y squared

Step-by-step explanation:

Answer:

102.88m

Step-by-step explanation:

draw a rectangle and draw a diagonal line from each corner down. You will get 2 right triangles. The height is 91 and the base is 48

[tex]\sqrt{91^2+48^2}= 102..88[/tex]

Answer:

None of the above

Step-by-step explanation:

the x coordinate tells us the duration, and the y-coordinate tells us the total cost of a phone call. The y coordinate of point aA represents the total cost of an 8 minutes phone call. not 8 phone calls. point a tells us that the cost is $2 for an 8-minute phone call, so the cost per minute is 2/8=$0.25, not $0.3.

Hope this helps!

Answer:

10.3 meters.

Step-by-step explanation:

From Triangle ABC

[tex]\tan 29^\circ =\dfrac{6.3+x}{h} \\h \tan 29^\circ=6.3+x\\h=\dfrac{6.3+x}{\tan 29^\circ}[/tex]

From Triangle ADC

[tex]\tan 19^\circ =\dfrac{x}{h} \\h \tan 19^\circ=x\\h=\dfrac{x}{\tan 19^\circ}[/tex]

Since the values of h are the same

[tex]\dfrac{x}{\tan 19^\circ}=\dfrac{6.3+x}{\tan 29^\circ}\\\\x\tan 29^\circ=\tan 19^\circ(6.3+x)\\x\tan 29^\circ=6.3\tan 19^\circ+x\tan 19^\circ\\x\tan 29^\circ-x\tan 19^\circ=6.3\tan 19^\circ\\x(\tan 29^\circ-\tan 19^\circ)=6.3\tan 19^\circ\\x=\dfrac{6.3\tan 19^\circ}{\tan 29^\circ-\tan 19^\circ} \\x=10.3$ meters (to the nearest tenth of a meter)[/tex]

The height of the first balcony above stage level is 10.3 meters.

Answer:

See explanation below.

Step-by-step explanation:

A right triangle is a triangle that has a right angle (90º). In math, the Pythagorean theorem allows us to calculate the length of the sides of a right triangle.

In a right triangle, the legs are the two sides that meet at the 90º angle and the hypotenuse is the side that opposes the right angle. The Pythagorean Theorem tells us that the square of the hypotenuse equals the sum of the squares of the legs. In other words: [tex]c^2 =a^2 +b^2[/tex] where c is the hypotenuse and a and b are the legs.

Now, we can use this formula to calculate the diagonal of the pool if we just have the length and the width (these would be the legs of the triangle). We need to measure both the length and the width and then square both of them and sum up the squares: this would give us the square of the diagonal so we will only need to find its quadratic root and we will have the length of the diagonal.

For example, let's say we have a pool that is 3 ft by 4ft, using the formula we have:

[tex]Diagonal^2=3^2 +4^2 \\Diagonal^2 = 9+16\\Diagonal^2 = 25\\Diagonal = \sqrt{25} \\Diagonal =5[/tex]

Therefore, in this case the diagonal would be 5 ft long.

Answer:

a

Step-by-step explanation:

Answer:

83.80 cm³

Step-by-step explanation:

volume of cone=

[tex] \frac{1}{3} \pi {r}^{2} h[/tex]

1/3×22/7×4×4×5=1760/21= 83.80 cm³

Answer:

thats the answer to rhjs problem

Answer:

1st option

2,4,8,16

Step-by-step explanation:

1st option is not an Arithmetic sequence, it is geometric sequence. Because, the common ratio is 2

the 2nd option has a common difference of 7, so it is arithmetic

the 3rd option has a common difference of 0.5,  so it is arithmetic

and 4th option has a common difference of -4.  so it is arithmetic

Answer:

(-2.3, 0.5)

Step-by-step explanation:

Step 1: Write out systems of equations

8x - 10y = -23

9x + 10y = -16

Step 2: Elimination (add the 2 equations together)

17x = -39

x = -39/17 = -2.29412 ≈ -2.3

Step 3: Plug in x to find y

8(-39/17) - 10y = -23

-312/17 - 10y = -23

-10y = -79/17

y = 79/170 = 0.464706 ≈ 0.5

Answer:

(-2.3, 0.5)

Step-by-step explanation:

Step 1: Write out systems of equations

8x - 10y = -23

9x + 10y = -16

Step 2: Elimination (add the 2 equations together)

17x = -39

x = -39/17 = -2.29412 ≈ -2.3

Step 3: Plug in x to find y

8(-39/17) - 10y = -23

-312/17 - 10y = -23

-10y = -79/17

y = 79/170 = 0.464706 ≈ 0.5

Step-by-step explanation:

Answer:

Area of shaded part = 41.09733550

Perimeter of shaded part = 35.82011867

Step-by-step explanation:

Area of shaded part =  ((πr^2)   4) - (bh ÷ 2)

Area of shaded part = ((π(12)^2) ÷ 4) - ((12)(12) ÷ 2)

Area of shaded part = (452.3893421 ÷ 4) - (144 ÷ 2)

Area of shaded part = (113.0973355) - (72)

Area of shaded part = 41.09733550

Perimeter of shadedpart:

AC = √a^2 + b^2

AC = √12^2 + 12^2

AC = √144 + 144

AC = √288

AC = 16.97056275

Perimeter of whole circle ÷ 4:

C=2πr

C=2π(12)

C=75.39822369

C ÷ 4 = 75.39822369 ÷ 4

C ÷ 4 = 18.84955592

Perimeter of shaded part:

18.84955592 + 16.97056275 = 35.82011867

Answer:

18π

Step-by-step explanation:

the area of a circle is :

A= r²*π     where r is the radius

here r²  =81⇒ r= 9

the circumference of a circle is :

P= 2*r*π

P= 18π

Answer:

18 pi inches

Step-by-step explanation:

The area of a circle is given by

A = pi r^2

81 pi = pi r^2

Divide by pi

81 = r^2

Take the square root of each side

sqrt(81) = sqrt (r^2)

9 = r

We want the circumference

C = 2 * pi * r

C = 2 * pi * 9

C = 18 pi

Answer:

Jane will run more than 30 miles this week, as thus far she ran 22.    

Step-by-step explanation:

X + 22>30

         X>8

She runs more than 8 miles.

Answer:

Well, it depends.

Step-by-step explanation:

In the problem, it doesn't specify if the miles she runs is a positive integer or not, but I will assume that it is.

There are  number of miles: 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, and 31.

So t = 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, and 31

Answer:

(0,-6), (-2,0)

Step-by-step explanation:

-3x-y=6

-y=6+3x

y=-3x-6

when x=0, y=-6

when y=0 x=-2

The graph is attached. :D

Hope I helped you! The graph calculator is desmos. You can use it for these types of questions.

Stay safe and God bless!

- eli <3

Answer: for the whole test

1. C: x + y ≤ 8

2. C: third graph

3. A: first graph

4. D: fourth graph

5. D: last graph

6. D:0.85x + 1.29y < 5

7. B:6

8. B:3.2x + 0.8y ≤ 50

9. A: first graph

10. D: last graph

Step-by-step explanation:

how because i got an 100%

Answer:

1. A. 12a^2 + 8a + 4

2. C. 4xy+16x-4y^2-16y

3. C. 64q^6r^8s^4

4. A. -4x^4y^6

Step-by-step explanation:

48a^3 + 32a^2 + 16a / 4a = (48a^3) / 4a + (32a^2) / 4a + (16a) / 4a = 12a^2 + 8a + 4.

So, the answer is A. 12a^2 + 8a + 4.

(2x-2y)(2y+8) = 4xy - 4y^2 + 16x -  16y.

So, the answer is C. 4xy+16x-4y^2-16y.

(-8q^3 * r^4 * s^2)^2 = (-8)^2 * q^6 * r^8 * s^4 = 64q^6r^8s^4.

So, the answer is C. 64q^6r^8s^4.

-12x^8y^8 / 3x^4y^2 = (-12 / 3) * (x^(8 - 4)) * (y^(8 - 2)) = -4x^4y^6.

So, the answer is A. -4x^4y^6.

Hope this helps!

Answer:

0.34134

Step-by-step explanation:

In other to solve for this question, we would be using the z score formula

z = (x - μ) / σ

x = raw score

μ = mean

σ = Standard deviation

We are told in the question to find the probability that a worker selected at random makes between $350 and $400

let x1 = 350 and x2= 400 with the mean μ = 400 and standard deviation σ = $50.

z1 = (x1 - μ) / σ = (350-400) / 50 = -1

z2 = (x2 - μ) / σ = (400 - 400) / 50 = (0/50) = 0

From tables, P(z <= -1) = 0.15866

P(z <= 0) = 0.5

Then, the probability would give us, P(-1 ≤ z ≤ 0) =0.5 - 0.15866 =

0.34134

Hence, The probability that a worker selected at random makes between $350 and $400 = 0.34134

Answer:

34%

Step-by-step explanation:

Acellus sux