That would the answers be for this question

Answer:

11/12 times 9/22  - rational

x + (-2x)  unknown

Step-by-step explanation:

11/12 is a rational number  (the ratio of integers)

9/22 is a rational number (the ratio of integers)

11/12 * 9/22 is a rational number

The product of 2 rational numbers is rational

x+-2x = x  but we do not know if x is rational or irrational , so we cannot say if it is rational or not.   If x is rational, the sum is rational.  If r is irrational, the sum is irrational.

Answer:

15 ft²

Step-by-step explanation:

The volume of a cone is given in terms of the base area (B) and height (h) by the formula ...

... V = (1/3)Bh

Putting in the given numbers, you have ...

... 35 ft³ = (1/3)B(7 ft)

... B = (35·3/7) ft² = 15 ft² . . . . . . solve for B

Answer:

The baseball team plays 25 games

Step-by-step explanation:

If they have lost 5 games and that is 20 %, we can make a ratio.

games/ total = 20/100

5              20

------ = -----------

total        100

Using cross products

5*100 = 20*total

500 = 20* total

Divide by 20 on each side

500/20 = 20/20 * total

25 = total

Answer:

its D which is also 25 games

Step-by-step explanation:

Answer:

they will tie

Step-by-step explanation:

if you divied 7 in to 70 you get 7 and if you divied 5 into 35 it 7

It takes both of them 7 mins to complet a mile

y = (9/8)(x +4)(x -2)

When the x-intercepts are "a" and "b", you know factors of the function are (x-a) and (x-b). So, we can write the function as ...

... y = k(x -(-4))(x -2) = k(x +4)(x -2) . . . . . for some scale factor k

We can find k using the given point.

... -9 = k(0 +4)(0 -2) = -8k

Dividing by -8 gives ...

... 9/8 = k

The desired function is ...

... y = (9/8)(x +4)(x -2)

... = (9/8)(x² +2x -8)

Answer:

14.

Unless your assignments tells you not to round to whole numbers or to round to the nearest decimal places, then 13.99. But, in most cases, you'd round to 14.

Answer:

1767 cm³

Step-by-step explanation:

We can use volume V = 4/3 π r³

We have diameter of 15 cm. To get radius, we need to divide diameter by 2.

r = 7.5 cm

So now plug in r = 7.5 then calculate V:

V = 4/3 π ( 7.5 )³

V =  4/3 π * 421.875 ≈ 1767.145 ≈ 1767

Hope this helps.

7 . . . . . inches per week

The average rate of change of height is ...

... (change in height)/(change in time)

The height changes from 41 inches to 83 inches when the time changes from 3 weeks to 9 weeks. Then the rate of change is ...

... (83 -41) inches/((9 -3) weeks) = (42/6) inches/week = 7 inches/week

It seems likely that the required answer will just be a number: 7.

Answer:

AC = √7 in

Step-by-step explanation:

ΔABC is isosceles, so ΔADC is a right triangle with AD = 2 in and CD = √3 in. The length of hypotenuse AC is found using the Pythagorean theorem.

... AC² = AD² +CD² = (2 in)² +(√3 in)² = (4 +3) in²

... AC = √7 in . . . . take the square root

Answer:

x=1

Step-by-step explanation (this way is not the shortest one):

if 2x-3>0, then the equation 2x-3=2x-1 has no roots.

if 2x-3<0 (x<1,5), then the equation 3-2x=2x-1 has one root, x=1

Answer:

The correct answer is A which is

[tex]\:<\:1[/tex]

Step-by-step explanation:

The angle of elevation from the submarine to the boat is [tex]\:<\:1[/tex].

This is the angle through which an observer from the submarine will raise the head before seeing the boat.

See diagram in the attachment for illustration.

Answer:

14 bags

Step-by-step explanation:

If you earn $17, to find the number of bags substitute 17 for y in the equation y=0.50x+10. Then use inverse operations to solve for x.

17 = 0.50x+10               Subtract 10 from both sides.

17-10 = 0.50x

7=0.50x                        Divide both sides by 0.50

7/0.50 = x

14 =x

Answer:

≈10.99525 cm.

Step-by-step explanation:

1. The length of the circle is L=2πr, where π≈3.1415 and r- radius of the circle.

2. if the given arc is 45° and full circle is 360°, then the length of the arc is 45/360=0.125 of full circle, that is L(arc)=0.125L=0.25πr; ⇒ L(arc)≈0.25*3.1415*14=10.99525 (cm).

Answer:

10.99 ≈ 11cm

Step-by-step explanation:

To find the length of the arc, first we need to find the circumference of the circle, which we find with the following formula :

[tex]c=2\pi r[/tex]

where  [tex]r[/tex] is the radius which is indicated in the image: [tex]r=14cm[/tex].

so the circumference  is:

[tex]c=2\pi(14cm)\\c=87.96cm[/tex]

This is the measure of the entire perimeter of the circle, it is the measure of the 360 ° arc.

Because we only want 45 ° of those 360 °, we divide the value of the circumference by 360 and multiply po 45:

[tex]\frac{87.96cm(45)}{360}=\frac{3958.2}{360}=10.99cm[/tex]

which can be rounded to 11cm

The length of the arc is 11cm

Answer:

4 cm

Step-by-step explanation:

The midpoint segment has length ...

... L = AB/2 + BC + CD/2 = 16 cm

The entire segment has length ...

... AD = AB + BC + CD = 28 cm

If we subtract AD from 2L, we have ...

... 2L - AD - 2L = 2(AB/2 +BC + CD/2) - (AB +BC +CD) = 2(16 cm) -28 cm = 4 cm

... AB +2BC + CD -AB -BC -CD = 4 cm . . . . remove parentheses

... BC = 4 cm . . . . simplify

Answer:

D. 1

Step-by-step explanation:

The signs of the terms are +---, so there is 1 change of sign. That means there is 1 positive real root. Profit is zero exactly one time.

Answer: 41

Step-by-step explanation:

533÷41 = 533/41

Se photo for step -by-step of ling division

The answer to the long division of 533 by 41 is 13. This is reached by multiplying 13 by 41 which results in 533, the original dividend. The remainder is 0.

Let's perform a long division of 533 by 41. First, write the number 533, which is the dividend, inside the long division bracket and the number 41, the divisor, outside of it. Now we need to see how many times 41 fits into 533.

It fits 13 times because 13 times 41 equals 533. Therefore, write 13 above on your long division bracket.

When you multiply 13 (your answer) by 41 (your divisor), you get 533, which is your dividend. Subtract 533 from 533 and you get a remainder of 0. The answer of the long division of 533 by 41 is 13.

Done correctly, long division is a reliable method of dividing large numbers. The important thing is to ensure all steps are followed orderly and accurately.

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Answer:

-2 ≥ b

Step-by-step explanation:

10 ≤ -2 ( 9 + 12b ) / 3

10 ≤ -2 ( 3 + 4b )

-10 ≥ 2 ( 3 + 4b )

-10 ≥ 6 + 8b

-16 ≥ 8b

-2 ≥ b

Answer:

1 and 3

Step-by-step explanation:

___

Applicable rules are ...

[tex]\sqrt[n]{x^{m}}=x^{\frac{m}{n}}\\\\(x^{b})^{c}=x^{bc}\\\\(ab)^{c}=a^c\cdot b^c[/tex]

Answer:

1420 pieces of mail he delivered in 2 months.

Step-by-step explanation:

If he delivered the same amount each month, you would divide 8520 by 12 (number of months in a year). Then once you divide it, the number you get is 710 now multiply 710 by 2 (because they ask how many he delivered in 2 months). And the answer would be 1420

Answer:

Max delivers 1420 in two Months because 8520 divided by 12 is 710 and thats just one month so 710 x 2 = 1420.

Step-by-step explanation:

Answer:

Step-by-step explanation:

I like to form the product of something like this by multiplying binomial pairs first. The distributive property applies for that (as does FOIL).

... (x^2 -3)(x^2 +2) = x^2·x^2 + x^2·2 + (-3)·x^2 + (-3)·2

... = x^4 -x^2 -6 . . . . . the two x^2 terms combine

Now, it is a simple matter to multiply each term by 2x:

... y = 2x^5 -2x^3 -12x

_____

The highest-degree term has degree 5. There are 3 terms. (All are odd-degree, so this is an odd function, symmetrical about the origin.)

As with any odd-degree function (with positive leading coefficient) the overall shape has a positive slope (/), tending toward -∞ for large negative values of x, and tending toward +∞ for large positive values of x.

y = 10.29·0.7^x . . . . . selection c seems the closest

For most any exponential function, the exponential multiplier will be 1 when x=0, so the y-intercept is the overall multiplier for the function.

The values decrease as x increases, so the base of the exponential term must be less than 1.

These considerations narrow your choice to C.

... y = 10.29·0.7^x

_____

If you actually want to determine the equation, you can do it several ways. One is to make use of the exponential regression function of your graphing calculator. (See attached). Another is to take the logarithms of the y-values and find a best-fit line through them.

_____

Comment on the answer choices

You may notice that none of the offered answers appears to be anything but the product of two numbers. There are no x-variables involved, and no exponents indicated. Cutting and pasting answers like this does not work.

Answer:

c

Step-by-step explanation:

Answer:

∠2 = 168°

∠3 = 6°

Step-by-step explanation:

Opposite angles of a rhombus are congruent, so ∠2≅∠1 = 168°.

∠3 is the base angle of the isosceles triangle with an apex angle of 168°. Hence it will be (180° -168°)/2 = 6°.

Answer:

1636.4 ft/min

Step-by-step explanation:

Multiply by the conversion factors that change the units you have to the units you want.

(200 yd)/(22 s) × (3 ft/yd) × (60 s/min) = 18000/11 ft/min ≈ 1636.4 ft/min

Answer:

y = ($0.5/ch) x + $10

Step-by-step explanation:

Let

x = number of chores

y = allowance

The relationship between y and x can be expressed in a linear equation in the slope-intercept form.

y = mx + b

where

m is the slope

b is the y-intercept

We have the ordered pairs (8, 14) and (12, 16). We can calculate the slope using the following expression.

m = Δy/Δx = $16-$14/12ch-8ch = $0.5/ch

The equation is

y = ($0.5/ch) x + b

We will replace the first point in the previous equation.

$14 = ($0.5/ch) 8ch + b

b = $10

The final equation is

y = ($0.5/ch) x + $10

This equation can be used to predict Hari's allowance for any number of chores. For example, if Hari does 10 chores, his allowance will be $12.50. The final equation is y = ($0.5/ch) x + $10.

We are given that Hari's allowance varies depending on the number of chores he does.

We are also given two points, (8, 14) and (12, 16), that represent the relationship between the number of chores and the allowance.

We can use these two points to find the slope of the line.

The slope is equal to rise over run, which in this case is equal to

$16 - $14 / 12 - 8 = 0.5/ch.

We can now plug the slope and one of the points into the slope-intercept form of the equation to find the value of b, the y-intercept.

We will use the point (8, 14).

y = mx + b

14 = ($0.5/ch) 8ch + b

14 = $4 + b

b = $10

The final equation is y = ($0.5/ch) x + $10.

This equation can be used to predict Hari's allowance for any number of chores. For example, if Hari does 10 chores, his allowance will be $12.50.

Learn more about slope-intercept form here:

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Answer:

24p

Step-by-step explanation:

This is the difference of 2 squares:-  a^2 - b^2 = (a + b)(a - b).

So here we have:-

(2p + 3)^2 - (2p - 3)^2

= (2p + 3 + (2p - 3))(2p + 3 - (2p - 3))

= (2p + 3 + 2p - 3)(2p + 3 - 2p + 3

= 4p * 6

= 24p   (answer)

Final answer:

To simplify the expression (2p+3)² - (2p-3)², apply the difference of squares formula to get ((2p+3) + (2p-3)) * ((2p+3) - (2p-3)), which simplifies to 24p.

Explanation:

To simplify the expression (2p+3)² - (2p-3)², we need to apply the difference of squares formula, which is

a² - b² = (a+b)(a-b).

Here, a is (2p+3) and b is (2p-3). The result will be the product of the sum and difference of a and b.

Let's perform the simplification step-by-step:

Simplify both products:
 (4p) * (6)

Finally, multiply the results to get the simplified expression:
24p

The simplified result of the expression (2p+3)² - (2p-3)² is 24p.

Answer:

See attached

Step-by-step explanation:

For each increase of 1 in the index, the function value doubles. The size of the function value rapidly exceeds the limit of any linear grid.

We've shown a few points plotted. Perhaps it will give you the idea of what you need to do.

Answer:

The index starts at 1, so the domain of the function is D = {1, 2, 3, 4, 5, 6, . . .}. The sequence is based on the add 3 rule. So, to get more terms of the sequence, add 3 to the last term to get the next one. The range values include the terms of the sequence, so the range is R = {1, 4, 7, 10, 13, 16, . . .}.

To graph the function of this sequence on a coordinate plane, pair the domain values with the corresponding range values to get {(1, 1), (2, 4), (3, 7), (4, 10), (5, 13), (6, 16), . . .}. Then plot these points on the graph.

Step-by-step explanation:

D. S(-a, -a), T(-a, a), W(a, a), Z(a, -a)

Point S is in the 3rd quadrant, where both coordinates are negative. That eliminates choices A and B.

The distance between points is 2a, so the distance from a corner point to either axis is "a". That is, the magnitude of any coordinate value is "a", not "2a." That eliminates choice C.

Remaining is the correct choice: D.

Answer:

This is quadratic since it has an x^2

The quadratic term is 2x^2, the linear term is -5x and the constant term is 0

Step-by-step explanation:

x + 2x(x-3)

Distribute the 2x

x + 2x^2 -6x

Combine like terms

2x^2 -5x

This is quadratic since it has an x^2

The quadratic term is 2x^2, the linear term is -5x and the constant term is 0

Answer:

quadratic, 2, -5, 0

Step-by-step explanation:

x + 2x(x-3)

= x + 2x^2 - 6x

= 2x^2 - 5x

so the eqn is quadratic

the quadratic term is 2,

the linear term is -5, and

the constatnt term is 0

Answer:

For negative sign , the graph reflects over x -axis and for 1/2 there will be a vertical compression

Step-by-step explanation:

Parent function is f(x)= x

We need to find the effect of the graph when f(x) is replaced with -1/2f(x)

When negative sign is multiplied outside f(x) like -f(x),  then there will be a reflection over x-axis

When negative sign is multiplied inside f(x) like f(-x) then there will be a reflection over y-axis

When a number is multiplied outside f(x) then there will be a vertical stretch or compression

Here 1/2 is multiplied outside f(x). [tex]\frac{1}{2}[/tex] is less than 1 so there will be a vertical compression

For negative sign , the graph reflects over x -axis and for 1/2 there will be a vertical compression

Answer:

10.8 : 1

Step-by-step explanation:

In raw terms the ratio of car length to model length is ...

... 9 ft : 10 in

As a pure number this will be ...

... 108 in : 10 in = 10.8 : 1