Write an expression to determine (represent) the ratio of the circle's circumference to its radius.

Answer:

[tex]-3/13[/tex]

Step-by-step explanation:

So we have the expression:

[tex]\frac{y^3+\sqrt{x-2}}{|4x-y|}[/tex]

And we want to evaluate it for x=6 and y=-2.

Thus, substitute:

[tex]=\frac{(-2)^3+\sqrt{(6)-2}}{|4(6)-(-2)|}[/tex]

Let's do the numerator first:

[tex](-2)^3+\sqrt{6-2}[/tex]

Cube the first term and subtract under the radical:

[tex]=-8+\sqrt4[/tex]

Simplify:

[tex]=-8+2[/tex]

Add:

[tex]=-6[/tex]

Now, do the denominator:

[tex]|4(6)-(-2)|[/tex]

Multiply:

[tex]=|24-(-2)|[/tex]

Simplify and add:

[tex]=|24+2|\\=|26|[/tex]

Remove the absolute value bars:

[tex]=26[/tex]

So, together:

[tex]=\frac{(-2)^3+\sqrt{(6)-2}}{|4(6)-(-2)|}\\=-6/26[/tex]

Reduce:

[tex]=-3/13[/tex]

And that's our answer: :)

Answer:

b. y=sec(x/3) and y=-1

Step-by-step explanation:

sec(x/3) + 4 > 2 − sec(x/3)

2 sec(x/3) > -2

sec(x/3) > -1

Graph y = sec(x/3) and y = -1.

Answer: The answer is 6!

Step-by-step explanation:

Answer:

168 adult tickets were sold

Step-by-step explanation:

$10. 50 per adults

$3. 75 per student

There are 82 students..

.. So...

$3. 75 × 82 = $307. 50

Overall the amount of money made was $2071.50

If you subtract $307.50 from $2071. 50 you will get $1,764

We now need to find out how many adults bought tickets by dividing $1, 764 by the price adults have to pay so..

Amount of adults who bought tickets are

= $1, 764 ÷ $10. 50

= 186 adults

Answer:

63c^7 + 70c^3.

Step-by-step explanation:

7c^2(9c^5 + 10c)

= 7c^2 * 9c^5 + 7c^2 * 10c

= 63c^7 + 70c^3.

Greetings from Brasil...

First let's define the rational number....

→ Division between two numbers with the detail that the dividend or denominator cannot be zero

A/B or A ÷ B

where B ≠ 0

(just for the sake of knowledge. If B = 0 we would have +∞ as an answer)

A ∈ ℤ

and

B ∈ ℤ*   (B ≠ 0)

In this way, when dividing A by B, we will obtain a whole number or a number with a decimal (finite decimal or periodic tenth)

Let's go to the alternatives

4 ∈ ℤ and 5 ∈ ℤ*, so we have a rational number

B = √27 = 5.1961524227066318805823390245176

(There is no repetition of tithing periods (numbers after the point) - non-periodic tithe). So we have an Irrational Number

C = 4.020020002000002

There is no periodic tenth - Irrational Number

D = √31 = 5.5677643628300219221194712989185

Irrational Number - Non-periodic tithe

Answer:

the marked price of a mobile is 25% above its cost price when it is sold at a gain of 10%, the profit amount to RS 725 find the marked price of the mobile

Step-by-step explanation:

Hope this helps.......

Answer:

"Subtracting 3 from four times the square of an unknown number gives 13"

Step-by-step explanation:

The expression

[tex]4\,y^2-3 = 13[/tex]

in word form could be:

"subtracting 3 from four times the square of an unknown number gives 13"

Answer:

Step-by-step explanation:

a) From the image attached, the area of the small section is 16ft² and the area of the large  section is 50 ft². The area of a square = length × length = length².

For the small section: Area = length²

16 = length²

length = √16 = 4 ft

For the large section: Area = length²

50 = length²

length = √50

The length of entire shed = length of small area + length of large area = 4 + √50

The length of entire shed = 4 + √50

b) All square root of integers other than perfect squares are irrational numbers , hence 4 + √50 is an irrational number. All numbers belongs to the set of real numbers. Therefore  4 + √50 is an irrational number and real number

Answer:

B

Step-by-step explanation:

3.2 * 10⁷ + 6.4 * 10⁷

= 10⁷  * (3.2 + 6.4)

= 10⁷ * 9.6

= 9.6 * 10⁷

Answer:

The Atlantic Ocean and Pacific Ocean covers about 9.6 x 10^7 mi^2

Step-by-step explanation:

Let

x -----> area covered by the Atlantic Ocean

y -----> area covered by the Pacific Ocean

we know that

The area that covers the Atlantic Ocean and Pacific Ocean is equal to the sum of  the area covered by the Atlantic Ocean and the area covered by the Pacific Ocean

x = 3.2 x 10^7

y = 6.4 x 10^7

Substitute

x + y = 3.2 x 10^7 + 6.4 x 10^7 = 9.6 x 10^7.

Hope this helps!  And good luck on your test!

Answer:

The coefficient would be 94

Step-by-step explanation:

A coefficient is the number used to multiply the variable! Hope this helps!

Answer:

Step-by-step explanation:

The column has the shape of a cylinder hence the formula for the volume of a cylinder is

[tex]v=\pi r^2h[/tex]

Given

diameter d= 390 mm

radius r= 390/2= 195 mm to meter = 0.195 m

length or height h= 3 m

applying the data to the formula we have

[tex]v=\pi *0.195^2*3\\\\ v=\pi*0.0038*3\\\\ v=\pi*0.0114\\\\ v=0.035 m^3[/tex]

we can now use the volume in addition with the density given to solve for the mass using the expression for density

density= mass/volume

2.45= mass/0.035

mass= 2.45*0.035

mass= 0.085 mg

We know that weight

w= mass* acceleration

w= 0.085*9.81

w= 0.83 N

Answer:

375

Step-by-step explanation:

The ratio of d to 125 is the ratio of 30 to 10,so by comparison, 30:10=3÷1

X÷125=X=375

Answer: 13/48

let me know if I'm wrong

I didn't have enough time to explain it though

Step-by-step explanation:

Answer:

7/2

Step-by-step explanation:

17=4x+3

4x=17-3

4x=14

x=14/4

x=7/2

Answer:

Logarithm I think

Step-by-step explanation:

If u need more explanation u can ask me

Answer:

The slope is 5/4

Step-by-step explanation:

The slope intercept form of a line is

y = mx+b where m is the slope and b is the y intercept

y = 5/4x - 7/5

The slope is 5/4 and the y intercept is -7/5

Answer:

[tex]F = 9.75cm[/tex]

Step-by-step explanation:

Given

In ABC;

[tex]C = 3.9cm[/tex]

[tex]Dilation = 2.5[/tex]

Required

Determine side F

In the given question;

DEF is a dilation of ABC

Comparing both triangles side by side,

Side F is a direct dilation of side C and this is calculated as follows

[tex]F = Dilation * C[/tex]

[tex]F = 2.5 * 3.9cm[/tex]

[tex]F = 9.75cm[/tex]

Answer:

3, 3.024, 3.04, 10

I'm sorry if I misunderstood.

Good luck mate! :)

Please add Brainliest if you'd like, not that it matters.

Remember to try your best every day!

Answer:

D

Step-by-step explanation:

Smaller p values that there is evidence to show that the alternate hypothesis should be accepted. The smaller the p value, the more evidence there is that we are not to accept the null hypothesis. The p value during a hypothesis yet, tells us how significant our result is. It gives a measurement of how strong the evidence is, against the null hypothesis.

Answer:

five years ago

father:son = 9:4

= 45: 20

now

father: son = 45+5 : 20+5

= 50:25

ok

the son is now 25 years old

Answer:

The function would be positive in:

(-9, 3]

Step-by-step explanation:

A function is considered positive on the X-axis when the changed values ​​in the function are greater than zero.  f(x) > 0

And is considered negative when f(x) < 0.

In this case, the numbers that make the function positive are the numbers from -9 to 3, but not including -9.

This can be written as (-9, 3]

It means that -9 is not taken but any number greater than -9 is.

Answer:

B. 8(3+1)

Explanation: 8x3 = 24. 8x1 = 8

Answer:

B. 8(3+1) = 32

Step-by-step explanation:

8 x 3 + 8 x 1 = 32

A. 8(3 + 8) = 88

B. 8(3+1) = 32

C. 3(8+1) = 72

D. 1(3+8) = 11

Answer:

A. y = -4x - 10

Step-by-step explanation:

See image below. The red line (y = -4x - 10) is parallel to                                  the blue line (y = -4x + 3) and passes through (-3 , 2)

Answer:

y = -4x - 10 (Answer A)

Step-by-step explanation:

Any line parallel to the given y = -4x + 3 has the same slope:  -4.

Starting with y = mx + b, and substituting -4 for m, -3 for x and 2 for y, we get:

2 = -4(-3) + b, or b = -10, and so the desired equation is

y = -4x - 10 (Answer A)

Answer:

x=−1,−7

Step-by-step explanation:

Answer:

The solutions are {-1, 9}

Step-by-step explanation:

x² - 8x + 16 can be re-written as (x - 4)^2, and 9 + 16 as 25.

Taking the square root of both sides of (x - 4)^2 = 25, we get:

x - 4 = ±5, or:

x = 4 + 5 = 9, and

x = 4 - 5 = -1

The solutions are {-1, 9}

Answer:

A)

Important information:

The total cost includes the price of 2 tickets and the price of yogurt.

The total cost: 19.90$

The price of yogurt: 5.5

The price of 2 tickets: unknown

Each of the tickets costs the same amount of money.

Verbal Description:

For the unknown value, the letter x is often selected to represent this unknown value.

Here, we select x that is the price of 1 ticket, then the price of 2 tickets would be 2x.

=> We have the equation: 2x + 5.5 = 19.90

Transfer 5.5 to the right, and then divide both sides by 2, we have:

(2x)/2 = (19.9 - 5.5)/2

Take the simplification, we have:

x = 7.2$ (this is the price of a ticket)

B)

Use the same strategy as shown in A), we have:

Total number of stamps: 100

Mari's number of stamps: x

Carlos's number of stamps: x + 5

Amanda's number of stamps: 3x

=> 3x + x + x + 5 = 100

=> 5x = 100 - 5

=> 5x = 95

=> x = 19

Mari's number of stamps: 19

Carlos's number of stamps: 19 + 5 = 24

Amanda's number of stamps: 3 x  19 = 57

C)

The perimeter of the garden:

perimeter = (width + length) x 2

perimeter = 256

width = w

length = w + 8

=> We have:

256 = (w + w + 8) x 2

<=>256 = (2w + 8) x 2

<=> 256/2 = (2w + 8) x 2/2

<=> 128 = 2w + 8

<=> 128 - 8 = 2w

<=> 120 = 2w

<=> w = 60

=> width of garden: 60

=> length of garden: 60 + 8 = 68

Answer:

68

Step-by-step explanation:

[tex]7\frac{12}{25}[/tex]

7.48 = 748⁽⁴/100 = 187/25 = 7  12/25

Answer:

-22d -102

Step-by-step explanation:

8(−5d−9)−3(−6d+10)

Distribute

-40d -72 +18d -30

Combine like terms

-40d +18d   -72 - 30

-22d -102

Answer:

−22d − 102

Step-by-step explanation:

8 (−5d − 9) −3 (−6d + 10)

expand 8 (−5d − 9)  to  −40d − 72

= −40d − 72 − 3 (−6d + 10)

expand − 3 (−6d + 10)   to   18d − 30

= −40d − 72 + 18d − 30

combine like terms

= −40d + 18d − 72 − 30

=  −22d − 102