pls help oooooooooooooopoo

Answer:

-25

Step-by-step explanation:

-25 because a positive and a negative equals a negative and if you subtract those to number it equal -25 ( it also gets closer to zero so it's not in the positives yet!)

Answer:

-30 + 5 = -25

Step-by-step explanation:

30 - 5 = 25

so

-30 + 5 = 25

Answer:

3.5x larger

Step-by-step explanation:

All you do is 7 divided by 2 for an easy answer.

Answer:

\(a \: is \: 3.5times \: larger \: than \: b.....\)

Factory A sent 14 loads of rice to Store 1

Factory A sent no loads of rice to Store 2

Factory B sent 6 loads of rice to Store 1

Factory B sent 16 loads of rice to Store 2

Let

    A1 = Loads sent from Factory A to Store 1

    A2 = Loads sent from Factory A to Store 2

    B1 = Loads sent from Factory B to Store 1

    B2 = Loads sent from Factory B to Store 2

Then, the equations describing the scenario are;

    \(A1+A2=14\)

    \(B1+B2=22\)

    \(A1+B1=20\)

    \(A2+B2=16\)

    \(200A1+350A2+300B1+250B2=8600\)

The simultaneous equations can be expressed in matrix form thus:

\(\left[\begin{array}{ccccc}{A1}&{A2}&{B1}&{B2}&{}\\1&1&0&0&14\\0&0&1&1&22\\1&0&1&0&20\\0&1&0&1&16\\200&350&300&250&8600\end{array}\right]\)

Reducing the matrix:

Step 1:

\(R_3 \leftarrow R_3 - R_1\\R_5 \leftarrow R_5 - 200R_1\)

\(\left[\begin{array}{ccccc}{A1}&{A2}&{B1}&{B2}&{}\\1&1&0&0&14\\0&0&1&1&22\\0&-1&1&0&6\\0&1&0&1&16\\0&150&300&250&5800\end{array}\right]\)

Step 2:

Switch \(R_4\) and \(R_2\)

\(\left[\begin{array}{ccccc}{A1}&{A2}&{B1}&{B2}&{}\\1&1&0&0&14\\0&1&0&1&16\\0&-1&1&0&6\\0&0&1&1&22\\0&150&300&250&5800\end{array}\right]\)

Step 3:

\(R_3\leftarrow R_3+R_2\\R_5 \leftarrow R_5-150R_2\)

\(\left[\begin{array}{ccccc}{A1}&{A2}&{B1}&{B2}&{}\\1&1&0&0&14\\0&1&0&1&16\\0&0&1&1&22\\0&0&1&1&22\\0&0&300&100&3400\end{array}\right]\)

Step 4:

\(R_4\leftarrow R_4+R_3\\R_5 \leftarrow R_5-300R_3\)

\(\left[\begin{array}{ccccc}{A1}&{A2}&{B1}&{B2}&{}\\1&1&0&0&14\\0&1&0&1&16\\0&0&1&1&22\\0&0&0&0&0\\0&0&0&-200&-3200\end{array}\right]\)

Step 5:

Switch \(R_4\) and \(R_5\)

\(R_4\leftarrow R_4 \times \frac{1}{-200}\\R_1 \leftarrow R_1-R_2\)

\(\left[\begin{array}{ccccc}{A1}&{A2}&{B1}&{B2}&{}\\1&0&0&-1&-2\\0&1&0&1&16\\0&0&1&1&22\\0&0&0&1&16\\0&0&0&0&0\end{array}\right]\)

Step 6:

\(R_1 \leftarrow R_1 + R_4\\R_2\leftarrow R_2 - R_4\\R_3 \leftarrow R_3-R_4\)

\(\left[\begin{array}{ccccc}{A1}&{A2}&{B1}&{B2}&{}\\1&0&0&0&14\\0&1&0&0&0\\0&0&1&0&6\\0&0&0&1&16\\0&0&0&0&0\end{array}\right]\)

So,

\(A1=14\\A2=0\\B1=6\\B2=16\)

From the above calculations, we see that

Factory A sent 14 loads of rice to Store 1

Factory A sent no loads of rice to Store 2

Factory B sent 6 loads of rice to Store 1

Factory B sent 16 loads of rice to Store 2

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Answer:

75.4

Step-by-step explanation:

2·π·12

75.36

The equation for finding the circumference of a circle is 2pi times the radius.

The radius is already given, so we multiply it by 2.

12*2

= 24

After that, we multiply 24 by pi.

24*3.14

= 75.36

The two numbers so that the exact answer is between 6×7381 are 28,000 and 48,000.

Given:

To find two numbers the exact answer is between 6×7381.

7,381 is between the numbers 7,000 and 8,000.

Rounding the number 7,381 down to 7000 and multiplying 6 by it.

6 × 7,000 is 28,000

Rounding the number 7,381 up to 8000 and multiplying 6 by it.

6 × 8,000 is 48,000

The two numbers so that the exact answer is between 6×7381 are 28,000 and 48,000 respectively.

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Answer:

The improper fraction of 9 1/3 is 28/3

Answer:

28/3

Step-by-step explanation:

a way to get the improper fraction from a mixed fraction is to

1. multiply the whole number by the denominator

2. then add the numerator

9 (whole number) times 3 (denominator) = 27

27 plus 1 (numerator) = 28

Hope this helps dude

Answer:

The expected value of this policy to the insurance company is $206.97

Step-by-step explanation:

Probability that Person doesn't die = 0.999563. Profit = Revenue - Cost; Profit = $290 - 0 = $290

Probability that Person dies = 1 - 0.999563 = 0.000437. Profit = Revenue - Cost; Profit = $290 - $190,000 = -$189,710

Expected Value E(X) = ∑xp(x)

E(X) = $290*(0.999563) + (-$189,710* 0.000437)

E(X) = $289.87327 - $82.90327

E(X) = $206.97

Thus, the expected value of this policy to the insurance company is $206.97

The complete table of values of the linear equation is

x | y

0 | 1

1 | 4

2 | 7

3 | 10

-1 | -2

The ordered pairs are (x, y) = (0, 1), (1, 4), (2, 7), (3, 10) and (-1, -2)

Linear equations are equations that have constant average rates of change. Note that the constant average rates of change can also be regarded as the slope or the gradient

The linear equation of the function is given as

y = 3x + 1

On the incomplete table of values, we have the following x values

x = 0, 1, 2, 3, -1

Next, we substitute x = 0, 1, 2, 3, -1 in the equation y = 3x + 1

So, we have:

y = 3 x 0 + 1 = 1

y = 3 x 1 + 1 = 4

y = 3 x 2 + 1 = 7

y = 3 x 3 + 1 = 10

y = 3 x -1 + 1 = -2

So, the complete table of values of the linear equation is

x | y

0 | 1

1 | 4

2 | 7

3 | 10

-1 | -2

When represented as ordered pairs, we have

(x, y) = (0, 1), (1, 4), (2, 7), (3, 10) and (-1, -2)

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Answer:

  (b) 27°

  (c) 34°

  ( ) 27°

Step-by-step explanation:

Angle relations involving lines, parallel lines, and triangles come into play here.

The interior angles at W and Y will be the supplement of the exterior angles at those points. The sum of interior angles is 180°.

  (180° -6x) +90° +(180° -4x) = 180°

  270° = 10x . . . . . . . . . add 10x and simplify

  27° = x

The vertical angles at S are congruent. This tells us ...

  3x +∠PSQ = 4x

  ∠PSQ = x

The sum of angles in triangle PSQ is 180°, so we have ...

  x +x +(180° -68°) = 180°

  2x = 68° . . . . . . . . add 60°-180°

  x = 34° . . . . . . . . . divide by 2

Angles BAD and EDF are corresponding angles, hence congruent. The sum of angles in triangle BAD is 180°.

  2x +2x +72° = 180°

  4x = 108° . . . . . . subtract 72°

  x = 27° . . . . . . . . divide by 4

C is the answer to that question i think

Answer:

b

Step-by-step explanation:

The answer is B because different X values cannot have the same y values. For example in A the x values, -2 and 0, have the same y value 4. That's not possible.

Although C also has a similar problem ALL of the X values have the same y value meaning that the function is an undefined function which is still a type of function. Its basically a function where all the y values are the same.

Answer:

∠ BDC = 29°

Step-by-step explanation:

the sides of a rhombus are congruent, so CD = ED and Δ EDC is therefore isosceles with base angles congruent , then

∠ BCD = ∠ BED = 61°

• the diagonals are perpendicular bisectors of each other , then

∠ CBD = 90°

the sum of the 3 angles in Δ BCD = 180°

∠ BDC + ∠ CBD + ∠ BCD = 180°

∠ BDC + 90° + 61° = 180°

∠ BDC + 151° = 180° ( subtract 151° from both sides )

∠ BDC = 29°

The equivalent equatiοn x² + 16x = 22 will be (x + 8)² = 86. Then the cοrrect οptiοn is A.

The equivalent is the expressiοns that are in different fοrms but are equal tο the same value. Equivalent expressiοns are expressiοns that wοrk the same even thοugh they lοοk different. If twο algebraic expressiοns are equivalent, then the twο expressiοns have the same value when we plug in the same value(s) fοr the variable(s).

The equatiοn is given belοw.

x² + 16x = 22

Add bοth side 64.

x² + 16x + 64 = 22 + 64

        (x + 8)² = 86

Then the cοrrect οptiοn is A.

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Complete question:

Which equation is equivalent to the given equation? x² + 16x = 22

a. (x+8)² = 86

b. (x+8)² = 38

c. (x+16)² = 278

d. (x+4)² = 22

The given box plot represented by the data sets in option A and B.

From the given box plot, we have

Minimum value = 3

Maximum value = 18

First quartile (Q1) = 7

Third quartile (Q3) = 13

Median = 10

Option A:

3, 4, 8, 9, 9, 12, 12, 13, 13, 16, 18

Median = 12

First quartile (Q1) = 8

Third quartile (Q3) = 13

Option B:

3, 4, 7, 9, 9, 10, 12, 13, 13, 16, 18

Median = 10

First quartile (Q1) = 7

Third quartile (Q3) = 13

Option C:

3, 4, 8, 9, 9, 10, 12, 13, 13, 16, 18

Median = 10

First quartile (Q1) = 8

Third quartile (Q3) = 13

Option D:

2, 4, 7, 9, 9, 10, 12, 13, 13, 16, 18

Median = 10

First quartile (Q1) = 7

Third quartile (Q3) = 13

Therefore, the correct options are B and D.

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Question:

The scatter plot shows the maximum noise level when different numbers of people are in a stadium. The linear model is given by the equation y=1.5x + 22.7 where y represents maximum noise level and x represents the number of people, in thousands, in the stadium.​​​​​​

A sports announcer states that there are 65,000 fans in the stadium. Estimate the maximum noise level. Is this estimate reasonable? Explain your reasoning.

Answer:

\(y = 97522.7\)

Step-by-step explanation:

Given

\(y = 1.5x + 22.7\)

\(x = 65000\)

Required

Find y

Substitute 65000 for x in the given equation

\(y = 1.5 * 65000 + 22.7\)

\(y = 97500 + 22.7\)

\(y = 97522.7\)

It is reasonable because as the population increases, the noise level also increases

Answer:

You are paying 0%, as your employer is paying the full price. 100% is equal to 1.

Answer:

Nothing

Step-by-step explanation:

100% of $7,200 leaves you to pay nothing ($0.00)

The different keypad patterns that are possible if the first three digits must be even and the last digit cannot be zero is 17500 ways.

It should be noted that the security keypad uses five digits (0 to 9) in a specific order. On this case, the numbers from 0 to 9 make up 10 numbers.

In this case, there are 5 even numbers.

The total number of possible codes will be:

= 5 × 5 × 10 × 10 × 7

= 17500

There are 17500 ways.

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Answer:

We have two consecutive even integers:

a and b.

We know that we can write a even integer as:

a = 2*n

where n is an integer.

Then the consecutive integer to a, b, will be:

b = 2*n + 2.

Then the sum of a and b is:

a + b = 2n + 2n + 2 = 4*n + 2 = 2*(2n + 1) = k.

The next two consecutive integers greater than b will be:

c = 2n + 4

d = 2n + 6

then:

c + d = (2n + 4) + (2n + 6) = 4n + 10 = k + 4.

We can see here that the measurements that can create more than one triangle is option A. The one that refers to the three angles measuring 75 degrees...

Triangles are known to be three-sided polygons having three vertices. It is one of the basic geometric forms. The name for a triangle with vertices A, B, and C is triangle ABC.

We must think about the triangle inequality theorem, which states that the total of the lengths of any two sides of a triangle must be greater than the length of the remaining side, to figure out which measurements can produce more than one triangle.

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Answer:

Step-by-step explanation:

\(\frac{-4 - i}{2 + 3i} * \frac{2 - 3i}{2 - 3i} = \frac{-8 + 12i - 2i + (3i)^{2} }{4 - 3i^{2} } = \frac{-11 - 10i}{4 + 9}= \frac{-11 - 10i}{13}\)

the answer is b

Answer:

2500

Step-by-step explanation:

Dimensions of first level

Length = Breadth = 75 ft (since it is a square)

It is assumed that a person will occupy \(2.25\ \text{ft}^2\)

Area of first level

\(75\times 75=5625\ \text{ft}^2\)

When the area of the level is divided by the area of one person then we will get the number of people that can occupy the room or the number of tickets that can be sold.

\(\dfrac{5625}{2.25}=2500\)

The number of tickets that can be sold for the first level is 2500.

Answer:

pppppppppppppppppppppppppppppppppppppppppp

It will take 5.189 hours to get doubled the size of Sample.

A relation of the form y = \(a^x\), with the independent variable x ranging over the entire real number line as the exponent of a positive number a.

Given:

Growth rate = 5.8%

The continuous exponential growth model for populations is given by:

P(t)= \(P_0 e^{rt\)

So, r= 5.8%

r = 0.058

Now, the time taken to double the sample then P(t) = 2P(0).

So, P(t)= \(P_0 e^{0.058t\)

2P(0) = \(P_0 e^{0.058t\)

\(e^{0.058t\) = 2

Taking log on both side

log \(e^{0.058t\) = log 2

0.058 t = 0.301

t= 0.301/ 0.058

t = 5.189

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a. Expenses: Books and supplies, Housing and food, Tuition and fees, Transportation and Personal expenses. Funding: Savings,

Scholarships, Grants and Student loans.

b. Total estimated expenses are $29,400

(a) Below is an estimate of all her expenses and sources of funding for her 2-year college education.

Expense:

Books and supplies: $1700

Housing and food: $14,020

Tuition and fees: $11,660

Transportation: $2040

Personal expenses: $2980

Funding:

Savings: $7800

Scholarships: $10,240

Grants: $11,600

Student loans: $6200

(b) What is the total of her estimated expenses?

To find the total estimated expenses, we need to add up all the expenses mentioned:

$1700 + $14,020 + $11,660 + $2040 + $2980 = $29,400

Therefore, the total estimated expenses for Nicole's 2-year college education is $29,400.

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Answer:

What =98.4

Step-by-step explanation:

Of means multiply and is means equals

7.5% * What = 7.38

Change to decimal form

.075 * what = 7.38

Divide each side by .075

.075 What /.075 = 7.38/.075

What =98.4

Answer:

the answer for this question is 98.4

\(x^2-8x+10=x^2-8x+16-6=(x-4)^2-6\)

Answer:

a). $10.50

b). $15.75

c). 2 POUNDS

d). 3 POUNDS

Step-by-step explanation:

Answer of  option (a)=$10.50 , (b)=$15.75 , (c)=2 pound , (d)=3 pound.

Cost is an amount to be spent to buy something or obtain something.

Given that,

The cost for one pound of candies is $3.50,

(a)  The coast For 3 pounds of candies = 3.50×3=10.50

(b) The coast For 4.5 pounds of candies = 3.50×4.50=15.75

(c) For $3.50 ,1 pound candies can be bought, so for $7 , 2 pound candies can be bought (Since 3.50×2=7)

(d) For 3.50 , 1 pound candies can be bought, so for $10.50 , 3 pound candies can be bought (Since 3.50×2=7)

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Answer:

The original price of the TV was $609.51

Step-by-step explanation:

100% - 21% = 79%

Now the question were really asking here is "475.19 is 79% of what?"

475.19 = 0.79 * x

To get x we must take 475.19 and divide by 0.79, which is about 601.51

The original price of the TV was $609.51

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