Please answer both parts, will give first answer brainliest

Answer:

D

Step-by-step explanation:

Answer:

Isolate the "d" variable by adding 6 to the left side of the equation, cancelling it out to 0. Subsequently, you would also add 6 to the right side of the equation to complete the transition.

-3d = 12

Next, divide by -3 to get the variable "d" all by itself.

d = -4

We can prove this equation is true by plugging -4 back into the original equation: -3(-4) - 6 = 6

Thus, we get 6 = 6, so this equation is correct.

The final answer is (1 + 21√2)/(21√2). The process of rationalization involves changing the form of an expression to eliminate radicals from its Denominator, or to eliminate denominators from a radical expression.

To rationalize the denominator 1/7 + 3√2,

A rational number is a number that can be expressed as a ratio of two integers, with the denominator not equal to zero. The fraction 4/5, for example, is a rational number since it can be expressed as 4 divided by 5.

Step-by-Step SolutionTo rationalizes the denominator 1/7 + 3√2, we'll need to follow these steps.

Step 1: First, we need to create a common denominator for the two terms. The common denominator is 7. Thus, we can convert the expression to the following form:(1/7) + (3√2 × 7)/(7 × 3√2).

Step 2: Simplify the denominator to 7. (1/7) + (21√2)/(21 × 3√2).

Step 3: The numerator and denominator can now be simplified. (1 + 21√2)/(7 × 3√2).Step 4: Simplify further. (1 + 21√2)/(21√2).We have successfully rationalized the denominator!

The final answer is (1 + 21√2)/(21√2).

The final answer is (1 + 21√2)/(21√2). The process of rationalization involves changing the form of an expression to eliminate radicals from its denominator, or to eliminate denominators from a radical expression.

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Answer:

15 multiple choice 5 true false

Plzzzzz give me Brainliest!!!!!  

Answer: the value of x is 15°

Step-by-step explanation:

A is 2x.  B is 2(2x), so 4x.   C is 3(2x) so 6x.

The sum of all the angles of a triangle is 180°

Set up the equation:

2x + 4x + 6x = 180

12x = 180°

x = 15°

Volume of a hemisphere is equals to 2786.3 cubic inches (nearest tenth).

" Volume of a hemisphere is the total space covered by a hemisphere in 3dimensional shape."

Formula used

Volume of a hemisphere = ( 2 /3) π r³

value of π = 3.14

According to the question,

Radius of hemisphere = 11 inches

Substitute the value of radius in the formula we get,

Volume of hemisphere = (2 /3) × 3.14 × (11)³

                                       = (2 /3 ) × 3.14 × 1331

                                       = 2786.3 cubic inches ( nearest tenth)

Hence, Volume of a hemisphere is equals to 2786.3 cubic inches (nearest tenth).

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Answer:

12 x 12 = 144

Step-by-step explanation:

12 times by 12 is 144

(a) The probability that the next 3 cards are also spades, given that the first 2 cards are both spades, is approximately 0.2200. (b) The probability, is approximately 0.2041. (c) The probability is approximately 0.1875.

To solve these probability problems, we need to consider the number of favorable outcomes and the total number of possible outcomes at each stage.

(a) If the first 2 cards are both spades, we have a favorable outcome of 11 cards remaining in the deck that are spades. The total number of possible outcomes is 50 cards remaining in the deck. So the probability of the next 3 cards being spades is:

Probability = count of favorable outcomes / count of all possible outcomes

Probability = 11 / 50 ≈ 0.2200

(b) If the first 3 cards are all spades, there are 10 spades remaining in the deck as favorable outcomes. The total number of possible outcomes is 49 cards remaining. Thus, the probability of the next 2 cards being spades is:

Probability = count of favorable outcomes / count of all possible outcomes

Probability = 10 / 49 ≈ 0.2041

(c) If the first 4 cards are all spades, there are 9 spades left in the deck as favorable outcomes. The total number of possible outcomes is 48 cards remaining. So the probability of the next card being a spade is:

Probability = count of favorable outcomes / count of all possible outcomes

Probability = 9 / 48 ≈ 0.1875

Remember to round your answers to four decimal places as requested.

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X is a connected set but not a path-connected set. X={x,0xe[0,1}U{1/nyneN,ye{0,1]}U{0,1}.

To prove that X is connected, let us assume that X can be divided into two disjoint non-empty open sets A and B. Since X is the union of different points, any point in X will be in either A or B. Let us take an arbitrary point p in A. Since A is open, there is an open ball centered at p that is contained in A. Because B is disjoint from A, it follows that every point in this ball is also in A. By a similar argument, any point in B must have a ball centered at that point that is entirely contained in B. Thus, X must be either in A or B and hence, cannot be divided into two disjoint non-empty open sets. However, X is not path-connected since there is no path between points in [0,1] x {0} and {1} x {1}. Thus, it is connected but not path-connected.

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Well, If you add them all up (3 + 5 + 8) it will be 16. Now we have to make it a fraction (out of blue pens). That will b 8/16. Now we simplify- 1/2. 1/2 as a percent is 50%. The probability is 50%.

Answer:

it actually y=1/3x+17/3

Step-by-step explanation:

First of all, remember what the equation of a line is:

y = mx+b

Where:

m is the slope, and

b is the y-intercept

To start, you know what m is; it's just the slope, which you said was 1/3. So you can right away fill in the equation for a line somewhat to read:

y=1/3x+b.

Now, what about b, the y-intercept?

To find b, think about what your (x,y) point means:

(-2,5). When x of the line is -2, y of the line must be 5.

Because you said the line passes through this point, right?

Now, look at our line's equation so far: . b is what we want, the 1/3 is already set and x and y are just two "free variables" sitting there. We can plug anything we want in for x and y here, but we want the equation for the line that specfically passes through the the point (-2,5).

So, why not plug in for x the number -2 and for y the number 5? This will allow us to solve for b for the particular line that passes through the point you gave!.

(-2,5). y=mx+b or 5=1/3 × -2+b, or solving for b: b=5-(1/3)(-2). b=17/3.

The equation of the line that passes through the point (-2,5) with a slope of 1/3

is

y=1/3x+17/3

There's your explanation

Answer:

it is 85x and I'm only in middle school

Answer:

11.87%

Step-by-step explanation:

34.2/288=0.11875

Which is about 0.1187

So 11.87%

Answer:

11.87

Step-by-step explanation:

mental math and just big brain

On the number line, if 'A' lies at 7 then 'B' could lie at -2, 16.

What is a number line?

A number line can be stretched in either direction indefinitely and is commonly displayed horizontally.

The numerals on the number line grow as one goes from left to right and drop as one moves from right to left.

Given, AB = 9 and 'A' lies at 7

So, basically 'B' can be at -2 on the number line which makes the distance between 'A' and 'B' 9 units. The same is possible for B at 16 on the number line.

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Answer:  see proof below

Step-by-step explanation:

Use the following Product to Sum Identities:

2 sin A sin B = cos (A - B) - cos (A + B)

2 sin A cos B = sin (A + B) + sin (A - B)

Use the Unit Circle to evaluate: cos 120 = -1/2    &      sin 60 = √3/2

Proof LHS → RHS

LHS:                                            sin 20 · sin 40 · sin 80

Regroup:                              (1/2) sin 20 · 2 sin 40 · sin 80

Product to Sum Identity:     (1/2) sin 20 [cos(80-40) - cos (80+40)]

Simplify:                                (1/2) sin 20 [cos 40 - cos 120]

Unit Circle:                            (1/2) sin 20 [cos 40 + (1/2)]

Distribute:                             (1/2) sin 20 cos 40 + (1/4) sin 20

Product to Sum Identity:       (1/4)[sin(20 + 40) + sin (20 - 40)] + (1/4) sin 20

Simplify:                                 (1/4)[sin 60 + sin (-20)] + (1/4) sin 20

                                           = (1/4)[sin 60 - sin 20] + (1/4) sin 20

Unit Circle:                             (1/4)[(√3/2) - sin 20] + (1/4) sin 20

Distribute:                              (√3/8) -  (1/4) sin 20 + (1/4) sin 20

Simplify:                                  √3/8

LHS = RHS:   √3/8 = √3/8  \(\checkmark\)

We are given the equation cos(20°)(cos(40°)(cos(60°)(cos(80°) = √3 / 8. Let's once again start by applying the identity 'sin(s)sin(t) = - cos(s + t) + cos(s - t) / 2. In this case if we focus on the expression 'cos(20°)(cos(40°),' s would be = 20°, and t = 40°.

\(\mathrm{Use\:the\:following\:identity}:\quad \sin \left(s\right)\sin \left(t\right)=\frac{-\cos \left(s+t\right)+\cos \left(s-t\right)}{2}\)

\(\sin \left(20^{\circ \:}\right)\sin \left(40^{\circ \:}\right)=\frac{-\cos \left(20^{\circ \:}+40^{\circ \:}\right)+\cos \left(20^{\circ \:}-40^{\circ \:}\right)}{2}\)

\(\mathrm{Substitute}:\frac{-\cos \left(20^{\circ \:}+40^{\circ \:}\right)+\cos \left(20^{\circ \:}-40^{\circ \:}\right)}{2}\sin \left(80^{\circ \:}\right)\)

\(\mathrm{Multiply\:fractions}:\frac{\sin \left(80^{\circ \:}\right)\left(-\cos \left(60^{\circ \:}\right)+\cos \left(-20^{\circ \:}\right)\right)}{2}\)

Remember that cos(- x) = cos(x). Respectively cos(- 20°) = cos(20°). Let's substitute and afterwards apply the identity 'cos(60°) = 1 / 2.'

\(\frac{\sin \left(80^{\circ \:}\right)\left(-\cos \left(60^{\circ \:}\right)+\cos \left(20^{\circ \:}\right)\right)}{2} = \frac{\sin \left(80^{\circ \:}\right)\left(-\frac{1}{2}+\cos \left(20^{\circ \:}\right)\right)}{2}\)

And if we further simplify the expression, we should receive the following...

\(\frac{\sin \left(80^{\circ \:}\right)\left(-1+2\cos \left(20^{\circ \:}\right)\right)}{4}\)

Now we want to prove that this expression = √3 / 8. The denominator here is 4 so we can multiply the whole thing by 2 to have a denominator of 8. 2((sin(80°)(- 1 + 2cos(20°)) when simplified = √3. Therefore the expression is true.

Decision Variables and Objective:

The decision variables in this transportation model are the quantities to be shipped from each plant to each distribution center. Let's denote the quantity shipped from Marietta to Cleveland as X1, from Marietta to Baltimore as X2, and so on. Similarly, let's denote the quantity shipped from Minneapolis to each distribution center as Y1, Y2, and so forth.

The objective of the optimization model is to minimize the total transportation cost. The transportation cost is determined by multiplying the unit cost of shipping between each plant and distribution center by the corresponding quantity shipped and summing up these costs for all combinations.

To enforce the single sourcing constraint, we need to ensure that each distribution center is served from only one plant. This constraint can be represented by adding the following constraint for each distribution center:

X1 + X2 + X3 + X4 = Demand (for each distribution center)

Y1 + Y2 + Y3 + Y4 = Demand (for each distribution center)

These constraints ensure that the total quantity supplied from all plants to a particular distribution center is equal to the demand of that distribution center, effectively enforcing the single sourcing constraint.

Optimization Model and Interpretation of Results:

The optimization model can be formulated as a linear programming problem, where the objective is to minimize the total transportation cost while satisfying the capacity constraints and the single sourcing constraint.

The Excel Solver can be used to solve this model, providing the optimal solution for the decision variables and the corresponding minimum cost.

Interpreting the printouts, we can observe the values of the decision variables X1, X2, X3, X4, Y1, Y2, Y3, Y4, which represent the quantities shipped between each plant and distribution center. Additionally, we can see the total transportation cost, which is the objective value obtained by summing the costs of shipping for all combinations.

Pertinent results could include identifying the optimal shipping quantities that meet customer demand while minimizing costs. Interesting results might include identifying any significant differences in shipping costs between the plants and distribution centers. Unusual results could involve finding a scenario where the total transportation cost does not decrease proportionally with an increase in supply capacity or demand.

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Answer:

negative

Step-by-step explanation:

b is a negative number because it is less than  -1, so b/5 is a negative number because negative/positive = negative

Answer:

b/5  is negative

Step-by-step explanation:

Since b < -1  b must be less than zero

You can also look at this as b < 0 so b is less than 0, b is negative

b/5  is negative

Answer:its A or C

Step-by-step explanation:i hope this helps

Answer: 4 shelves

Step-by-step explanation: Divide 400 books by 100 books which equals 4 shelves..

Each shelf contains 100 books,

so 1 shelf = 100 books, 2 shelves = 200 books, etc.

Answer:

2.828

Step-by-step explanation:

Answer:29503.49

Step-by-step explanation:

Answer:

29503.49

Step-by-step explanation:

since the number in the thousandths place is greater than four, you round the number in the hundredths place up to the number that would come after that. In this case, 8 rounds up to 9

The equation of the line in slope intercept form is y = -4x + 1.

Slope of a line is the ratio of the change in y coordinates to the change in the x coordinates of two points given.

Intercept of a line is the point where the line touches with one of the axis.

The general equation of a line in slope intercept form is,

y = mx + d, where m is the slope and d is the y intercept.

y intercept point touches the y axis.

Take any two points from the line.

Let it be (0, 1) and (-1, 5).

Slope = (5 - 1) / (-1 - 0) = 4 / (-1) = -4

m = -4

We have the point (0, 1), where the line touches the Y axis.

y intercept, d = 1.

Equation of the line is,

y = -4x + 1

Hence the equation of the line is y = -4x + 1, when slope is -4 and y intercept is 1.

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Answer:

He has read 217 pages. He has not read 93 pages.

Step-by-step explanation:

310x70% = pages read = 217

310x30% = pages not read = 93

Answer:

y = -8/3x - 11

Step-by-step explanation:

(-6, 5) and (-3, -3)

Slope:

m=(y2-y1)/(x2-x1)

m=(-3-5)/(-3+6)

m=(-8)/3

m= -8/3

Slope-intercept:

y - y1 = m(x - x1)

y - 5 = -8/3(x + 6)

y - 5 = -8/3x - 16

y = -8/3x - 11

Answer:

x=20

Step-by-step explanation:

bc 25 divided by 10 is 2.5 so you just multiply 8 by 2.5

Answer: X= 20

If solving for x

Step-by-step explanation:  

x/25= 8/10    

1= reduce the fraction to x/25= 4/5

2= cross multiply 5x=100

3= divide both sides X=20

Hope this helps. pls mark me brainliest

Answer:0 = 3x - 21

Step-by-step explanation:

From this given function we can take an  

x

common from its expression

i.e  

x

2

−

6

x

=

x

(

x

−

6

)

As we know that the product of two numbers is zero,when either one of them is zero

then in the above expression that we just factorised

the function can be zero when either  

x

=

0

or when  

x

=

6

i.e when  

x

=

0

,  

0

(

0

−

6

)

=

0

when  

x

=

6

,  

6

(

6

−

6

)

=

6

(

0

)

Finally, our prize of all that math, the zeroes of the function are  

0

and  

6

these numbers are called the zeroes of the function because when you put these values in  

x

the function gives zero.

The final itinerary will depend on your preferences, the specific national parks you plan to visit, and the distances between them.

Let's clarify the itinerary for the 15-day tour visiting 5 national parks.

You have a 15-day tour, and you plan to visit 5 national parks. Each park will have a stay of two days.

When you multiply the number of parks (5) by the number of days spent in each park (2), you get a total of 10 days allocated for staying in those 5 parks.

However, there seems to be a discrepancy in the calculation because allocating 10 days for park stays leaves only 5 days remaining, not 15.

To resolve this issue and ensure a 15-day tour, we need to reevaluate the itinerary. Let's assume you want to spend two days at each park, which gives you a total of 10 days for park stays.

To fill the remaining 5 days, you have a few options:

1. Travel Days: You can allocate a day for travel between each park, which would require an additional 4 days. This accounts for the transportation time and allows you to enjoy the journey between the parks.

2. Additional Park Visits: If there are other nearby national parks or attractions in the area, you can extend your tour to include visits to these places. This would allow you to explore more diverse locations and make the most of your 15-day tour.

3. Rest and Relaxation: Alternatively, you might choose to use the extra days for relaxation or leisure activities. You can spend some time enjoying the amenities and attractions available near the parks, such as hiking trails, wildlife observation, or local cultural experiences.

Ultimately, the final itinerary will depend on your preferences, the specific national parks you plan to visit, and the distances between them. Make sure to consider travel times, desired activities, and any additional locations you wish to explore when creating your 15-day tour.

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Answer:

565656÷8=p

So the answer is 637:D