What is the approximate surface area of the sphere?

Answer:no

Step-by-step explanation:

The circumference and radius are different

The circumference and the area of the circle is same.

Step-by-step explanation:

Given,

The radius (r) of the circle = 2 ft

To find the circumference and the area of the circle.

Formula

The circumference of a circle = 2πr

The area of a circle = πr²

Now,

The circumference of a circle = 2π×2 = 4π

The area of a circle = πr² = π×2² = 4π

Hence,

The circumference and the area of the circle is same.

Yes 1 5/7 and 4 2/7 is a solution. Adding those two numbers equals 6 because 5/7 + 2/7 = 1, then you have 4 + 1 +1 = 6

Two other solutions to x + y = 6 are any combinations of numbers when added together equal 6.

x = 5, y = 1

and

x = 2, y = 4

Answer:

The answer is B (132,220)

Step-by-step explanation:

I got it correct on the test

Plato tests

The required equilibrium point for the supply and demand curves for a product line of bicycles is (135, 225).

The graph is a demonstration of curves that gives the relationship between the x and y-axis.

here,
The graph shows the supply and demand curves for a product line of bicycles.
To determine the equilibrium point we to locate the intersection point of supply and demand.
From the graph, the intersection point is (135, 225), which is the approximate equilibrium point.

Thus, the required equilibrium point for the supply and demand curves for a product line of bicycles is (135, 225).

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Answer:

D.) 12x -6x 90

Step-by-step explanation:

because it's right angle

Answer:

You set up an equation, using the trig function "tan" to find half of the roof (the equation would be tan(24) = 3.5/x, where x = 1/2 roof width)

Step-by-step explanation:

That would be the first step.

You solve the equation for x, and then multiply x by 2 to get the width of the roof.

Answer:

the equation is y = (-2/15 in/min)x + 43 in

Step-by-step explanation:

We'll represent elapsed time with the letter t.  Then 12 p.m. corresponds to t = 0 sec.  Between 12 p.m. and 12:15 p.m., the change in time was 15 min and the change in water depth was (45 - 41) in., or 4 in.

Thus, the water depth changes by 4 in (a decrease) over 30 min.  

Part A:  The water depth rate of change is -4 in/30 min, or -2 in/15 min, or

(-2/15 in)/min (the depth is decreasing).

Part B:  We need to derive a linear function that describes the water depth at any given time x (or t).  Two points on the graph of this line are

(15 min, 45 in) and (35 min, 41 in):  the 'run' is 30 min and the 'rise' is -4 in.

As in Part A, the slope of this line is (-2/15 in)/min.

The desired equation is then y = mx + b, or 45 in = (-2 in/15 min)(15 min) + b, or 45 in = 2 in + b, or  43 in = b.  Then, in its most general form,

the equation is y = (-2/15 in/min)x + 43 in

Answer:

24y

Step-by-step explanation:

y*y*y = y^3 (y to the power of 3)

3*2*4 = 24

then your left with 24 times y^3 which is 24y^3

Hope this helps!

The expression 3 x y x 2 x y x 4 x y when simplified is 24y³

From the question, we have the following parameters that can be used in our computation:

3 x y x 2 x y x 4 x y

Evaluate the product of similar variables

So, we have

3 x y x 2 x y x 4 x y = 24 x y x y x y

Evaluate the remaining product of similar variables

So, we have

3 x y x 2 x y x 4 x y = 24y³

Hence, the product is 24y³

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Step-by-step explanation:

it means 13 tables have 6 chairs

and 7 tables have 4 chairs

so

total chairs in the cafeteria= 13×6 + 4×7 = 78+28=106

Answer:

all false

Step-by-step explanation:

n > -5

{-5, -5.5, -6}   False cannot = -5  ( all are greater than or equal to -5)

{-5, -4.5, -3)   False cannot = -5

{-6,0,5}   False cannot = -6

{-6, -7,-8}False  these are less than -5

Answer:

too compelx illegal

Step-by-step explanation:

Answer: {11, -11}

Step-by-step-explanation: To solve for x in this equation, since x is squared, we simply take the square root of both sides of the equation to get x by itself.

It's important to remember however that when taking the square root of both sides of an equation, we always use plus or minus.

In other words in this problem, since x² = 121,

x = + or - 11.

A common mistake is to say that x is just equal to 11. But notice that if you plug a -11 back into the original equation, it also checks.

So our answer to this problem is {11, -11}.

Answer: either 11 or -11

Step-by-step explanation:

you have to square root both sides. Then, you are left with the equation [tex]\sqrt{x^{2} } = \sqrt{121}[/tex]. That means that x either equals to 11 or -11.

:)

Answer:

It will travel 9 miles in 10 minutes

Step-by-step explanation:

A car travels 9/10 miles/minute

In 10 minutes, it will travel

10*9/10 = 9 miles

Final answer:

A car traveling at 9/10 of a mile per minute will travel 9 miles in 10 minutes by simply multiplying the car's speed by the time traveled.

Explanation:

To calculate how far a car traveling at a speed of 9/10 of a mile per minute will travel in 10 minutes, we simply multiply the speed of the car by the amount of time it travels.

Speed of car = 9/10 mile/minute

Time = 10 minutes

Distance traveled = Speed of car × Time

Distance traveled = (9/10) mile/minute × 10 minutes

Now we perform the multiplication:

Distance traveled = 9/10 × 10

Distance traveled = 9 miles

Answer:

6.3cm

Step-by-step explanation:

The approximate length of the minor arc DE will be 6.3 cm. Then the correct option is A.

It is a locus of a point drawn an equidistant from the center. The distance from the center to the circumference is called the radius of the circle.

Then the angle is subtended by the arc is 36° and the radius of the circle is 10 cm.

Then the length of the arc DE will be

[tex]\rm ARC = \dfrac{\theta }{360} \times 2\pi r[/tex]

Then we have

[tex]\rm ARC = \dfrac{36}{360} \times 2\pi \times 10\\\\ARC = 6.283 \approx 6.3\ cm[/tex]

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Answer:

1,-1

Step-by-step explanation:

Answer:

X = 1/2

Step-by-step explanation:

x2 = -69 + 70

x2 = 1

x = 1/2

Answer:

The Nile River is 2,200 miles longer than the Rio Grande.

Step-by-step explanation:

4100-1900=2200

Answer:

Answer:

The Nile River is 2,200 miles longer than the Rio Grande.

Step-by-step explanation:

4100-1900=2200

Step-by-step explanation:

Answer:

0.5 is in the middle plz give branliest

Step-by-step explanation:

The distance between the numbers is 9

so if you divide them in half, you get 4.5

add 4.5 to -4 or subtract it from 5 to get 0.5

5y² + 2xy – 20x - 100

Step-by-step explanation:

Assume that the distance between City A and City B is x miles,

& the speed of the plane from City A to B is y mph;

The return trip is 20 mph slower so the plane's speed is (y – 20) mph

Since time = distance/speed; The time taken by the plane from City A to B is x / y hrs.

The time taken in return flight is;

x / (y - 20) hrs

The layover was 5hrs long. Therefore the total time taken on the who return trip journey is;

x/y  +  x/(y-20)  + 5

multiply each individual fraction with the LCM of the denominators

x(y-20) + xy + 5 y(y-20)

xy -20x +xy + 5y² – 100

5y² + 2xy – 20x - 100

Answer:

j=300

Step-by-step explanation:

You multiply each side by 15.

j=300

Answer:

j should equal 300.

Step-by-step explanation:

j/15=20

you have to get j by its self. what you do to one side you must do to the other.

j/15(15) = 20(15)

the fifteens cancel out

j=300

Answer:

That statement is true which relates to what activity was taken by most of the students of different categories in that particular group during the summers.

Step-by-step explanation:

A two-way frequency table (likewise called a possibility table) is a valuable instrument for inspecting connections between downright factors. The passages in the cells of a two-way table can be frequency checks or relative frequencies (simply like a single direction table). Two-way frequency tables show what number of information focuses fit in every classification.  

Assume you direct a review where you pose every individual two inquiries. When you have wrapped up the overview, you will have two bits of information from every individual. At whatever point you have two bits of information from every individual, you can arrange the information into a two-way frequency table.

The money in the Felix's account will be $6798 when he is 21.

Step-by-step explanation:

It is given that,

To find the money in Felix's account after 21 years :

The formula used here is,

⇒ [tex]A = P(1+r/n)^{nt}[/tex]

where A is the amount after 21 years.

⇒ [tex]2000(1+0.06/1)^{21\times 1}[/tex]

⇒ [tex]2000(1.06)^{21}[/tex]

⇒ [tex]2000\times3.399[/tex]

⇒ [tex]6798[/tex]

Therefore, The money in the Felix's account will be $6798 when he is 21.

Answer:

The answer is C. 56

Step-by-step explanation:

So if we replace C with 56, the equation would look like this, 2(56)=112.

Answer:

Solution for A combination lock uses 3 numbers, each of which can be 0 to 33. If there are no restrictions on the numbers, how many possible ...

Step-by-step explanation:

Answer:

- q² - q + 72

Step-by-step explanation:

To express the given expression as a polynomial in standard form, we would first multiply the individual elements in one parenthesis with the elements in the second.

We would then rearrange the outcome and simplify it algebraically.

The arrange it in the order of the unknown variable.

As such,

(9+q)(8-q) = 9(8-q) +q(8-q)

= 72 -9q + 8q - q²

= 72 - q - q²

= - q² - q + 72

To form the expression (9+q)(8-q) into a polynomial in standard form, we multiply the terms using the distributive property to get -q² - q + 72.

The student has asked for the expansion of a binomial expression into polynomial form, in this case, expanding (9+q)(8-q). The process involves using the distributive property, also known as the FOIL method (First, Outer, Inner, Last), to multiply each term in the first binomial by each term in the second.

Expanding the binomials, we have:

First: 9 × 8 = 72

Outer: 9 × (-q) = -9q

Inner: q × 8 = 8q

Last: q × (-q) = -q²

Combining like terms (-9q and 8q) gives -q and then adding to the remaining terms, we have:

72 - q - q²

Reordering to get the polynomial in standard form (highest degree first), the result is:

-q² - q + 72

Answer:

6¾

Step-by-step explanation:

¾ * 9/1 = 287/4

27/4=6 ¾

which equals 6.75

Answer:

1/4

Step-by-step explanation:

5/20

Divide the top and bottom by5

1/4

Answer: The domain for real numbers

Step-by-step explanation: taking it right now

The domain for both functions g(x) and f(x) is all real numbers. Then the correct option is C.

The domain means all the possible values of the x.

The exponential function g(x) is shown on the graph.

Suppose f(x) = x.

Then the domain of the function g(x) is a real number.

And the domain of the function f(x) is also a real number.

Then the domain for both functions is all real numbers.

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Answer:

36

Step-by-step explanation:

12/2 = 6

6^2 = 36

Transformations can be applied to functions to change the appearance of

the (slope and intercept) of the function.

The result of the transformation are presented as follows;

Reasons:

The given function is; f(x) = 3·x + 2

The function -5·(3·x + 2) is the same as -5 × f(x) = -f(x)

Therefore;

-5·(3·x + 2)  → -5·f(x)

The function 3·x - 5 + 2 = 3·x + 2 - 5 = f(x) - 5

Therefore;

3·x - 5 + 2  → f(x) - 5

The function 3·(x - 5) + 2 by comparison to 3·x + 2 is obtained when x is replaced by (x - 5), therefore;

f(x) = 3·x + 2

f(x - 5) = 3·(x - 5) + 2

3·(x - 5) + 2 → f(x - 5)

The function 3·(-5·x) + 2 is obtained when x in f(x) is replaced by (-5·x),

which gives;

f(x) = 3·x + 2

∴ f(-5·x) = 3·(-5·x) + 2

Which gives;

3·(-5·x) + 2 → f(-5·x)

The completed table is therefore;

[tex]\begin{tabular}{|c|c|c|c|}f(x-5)&f(x) - 5&-5 \cdot f(x) &f(-5\cdot x)\\3\cdot (x - 5) + 2&3 \cdot x - 5 + 2&-5\cdot (3 \cdot x + 2)&3 \cdot (-5\cdot x) + 2 \end{array}\right][/tex]

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Answer:

3(y-4) =2y+6

3y - 12 = 2y +6

y = 18

so length is 42 in.

width is 14 in.

After solving the given equations, the length of the rectangle is 42 inches and the width of the rectangle is 14 inches.

Equations are mathematical expressions that have two algebra on either side of an equal (=) sign. The expressions on the left and right are shown to be equal to one another, demonstrating this relationship. L.H.S. = R.H.S. (left-hand side = right side) is a fundamental simple equation.

The given data in the question,

According to the given diagram,

Length of the rectangle, L = 2y + 6 inches    (i)

Width of the rectangle, W = y - 4 inches   (ii)

The width of the rectangle is 1/3 of the length,

1/3(2y + 6) = (y - 4)

2y + 6 = 3y - 12

y = 18.

Substitute y = 18 in equation (i)

L = 2(18) + 6

L = 42 inches

Substitute y = 18 in equation (ii)

W = (18 - 4)

W = 14 inches.

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