Which name is given to a reaction in which the number of each type of atom on one side of the equation is equal to the number of
The same kind of atoms on the other side of the equation?

A balanced
B electrical
C complete
D atomic

Answer:

308.65  lb

Step-by-step explanation:

1 lb = 0.45359 kg

140 kg * (1 lb)/(0.45359 kg) = 308.65  lb

1 kilogram ≈ 2.205 pounds

Multiply.

140 * 2.205 = 308.70 pounds

Best of Luck!

Answer:

2 11/12

Step-by-step explanation:

Answer:

\((-1, 3)\)

Step-by-step explanation:

Given

See attachment for ABCD

Options:

\((-1, 3)\ \ \ (0,3)\ \ \ (1,5)\ \ \ (2,5)\)

From the attachment:

\(A = (-6,1)\)

\(B = (4,5)\)

Required

Coordinates on AB

First, calculate the slope of AB

\(m = \frac{y_2 - y_1}{x_2 - x_1}\)

\(m = \frac{5-1}{4--6}\)

\(m = \frac{4}{10}\)

\(m = 0.4\)

Next,, calculate the equation as:

\(y = m(x - x_1) + y_1\)

\(y = 0.4(x - -6) + 1\)

\(y = 0.4(x +6) + 1\)

\(y = 0.4x +2.4 + 1\)

\(y = 0.4x +3.4\)

Taking the options one at a time: (-1, 3)

\(x = -1\ \ y =3\)

Test these values in the equation

\(y = 0.4 * -1 + 3.4\)

\(y = -0.4 + 3.4\)

\(y =3\)

Hence, this point lie on AB

Answer:

18.7

Step-by-step explanation:

The Solution:

Given the probability tree below:

We are required to find the probability of L and C.

So,

Therefore, the correct answer is 0.36

Answer: 5.36363636364

Step-by-step explanation:

91+ 129+ 16=236

236 ÷44= 5.36363636364

Answer: 59

Step-by-step explanation:

(91 + 129 + 16)/44

= 236/44

= 5.3636

Answer: 6, 18

Step-by-step explanation:

a. actual width/scaled width = 9/1.5 = 6

b. scaled width*scale factor = 3*6 = 18

Answer:

Therefore, the resultant ground speed of the plane after accounting for the wind is approximately 825.8 mph, and the resultant direction is 53.8° East of North.

Step-by-step explanation:

Based results, it appears that the question is asking for the resultant ground speed (magnitude) and direction of a plane flying at 700 mph on a course heading 10° East of North, while experiencing a wind blowing in a direction of 72° West of North at a speed of 150 mph. Here is how to solve this problem:

Convert the course heading and wind direction angles to Cartesian coordinates using the standard unit vector notation i and j. The course heading is (cos(10°)i + sin(10°)j) and the wind is (-cos(72°)i + sin(72°)j).

Add these vectors together to get the resultant vector. The sum is (-478.3i + 684.2j).

Find the magnitude of the resultant vector using the Pythagorean theorem. The magnitude is approximately 825.8 mph.

Find the angle that the resultant vector makes with respect to the North using the inverse tangent function. The angle is approximately 53.8° East of North.

Therefore, the resultant ground speed of the plane after accounting for the wind is approximately 825.8 mph, and the resultant direction is 53.8° East of North.

( Sorry if the answer is wrong ).

Answer:

513.45

Step-by-step explanation:

use intelligence

Answer:

6

Step-by-step explanation:

Answer:

8 pigs

Step-by-step explanation:

Since every animal has only 1 head, a total of 26 heads suggests that there are 26 animals in total.

Suppose all animals are chickens.

Total no. of feet = 26 chickens × 2 feet

                           = 52 feet

Difference in total no. of feet = 68 feet - 52 feet

                                                = 16 feet

Difference in no. of feet each animal has

= 4 feet (a pig) - 2 feet (a chicken)

= 2 feet

∴ No. of pigs = 16 feet ÷ 2 feet

                      = 8 pigs

Answer:

3.34

Step-by-step explanation:

625 is 5^4

Using the log rule \(log_b(x^a)=alog_b(x)\),

log_b(5^4) = 4*log_b(5)

4*0.835 = 3.34

Answer: x-2

Use A=Lw

A/L=w

if you factor and cancel, you are left wirh x-2.

Answer:

-70 -2

Step-by-step explanation:

Answer:

-9 * 8=-72

Step-by-step explanation:

By definition of conditional probability,

P(A | B) = P(A and B) / P(B)

so

P(A and B) = P(A | B) P(B) = 0.5 × 0.58 = 0.29

Answer: Ned received 86 Points overall on the test and Ned lost 24 points overall on his test.

Step-by-step explanation: Ned got 19 questions correct and 6 questions incorrect. He as well got 10 bonus points for answering a bonus question correctly. We know each of the questions on the test (excluding the bonus question) is worth 4 points.

If Ned got 19 questions correct that means 19 x 4 = he received 76 points.

If Ned got 6 questions incorrect that means 6 x 4 = he lost 24 points.

If Ned got 1 question correct that is worth 10 points, that means he got an additional 10 points to his score.

We can add the amount of points Ned scored to the amount of bonus points he earned; 76 + 10 = 86 points total on his test.

Answer:

Ned received 86 Points on the test and Ned lost 24 points on his test.

Answer:

73 inches tall

Step-by-step explanation:

Given that a foot is equal to 12 inches, we can convert the feet into inches,

Landon is 6 feet tall, so we can multiply that by 12 to convert.

\(12*6=72\)

Now we can add the remaining inch from the original problem, since it also stated that he was an extra inch above 6 feet tall.

\(72+1=73\)

Therefore, Landon stands at a height of 73 inches.

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The simplest form of the expression by the use of the distributive property is;

\(12x^2 + 24x + 9\)

In mathematics, the distributive property, which explains how multiplication interacts with addition or subtraction, is a fundamental concept. By allocating or multiplying a number or term to each term enclosed by a set of parenthesis, it enables you to simplify expressions.

The distributive property is frequently employed in algebraic expressions, equation simplification, and polynomial operations. By spreading out the multiplication over addition or subtraction, it aids in simplifying complex statements and makes calculations easier to understand.

We know that;

\(3(4x^2 + 8x + 3)\\12x^2 + 24x + 9\)

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Answer:45%

Step-by-step explanation:

The two expressions are not equivalent.

To simplify the expression (p^2n^1/2)^0 √ p^5n^4, we first need to understand the properties of exponents and radicals.

Recall that any number raised to the power of zero is equal to 1, so (p^2n^1/2)^0 = 1.

Next, we can simplify the radical term by multiplying the exponents inside and outside the radical:

√ p^5n^4 =

(p^5n^4)^(1/2)

= p^(5/2)n^(4/2)

= p^(5/2)n^2

Combining this result with the previous step, we have:

(p^2n^1/2)^0 √ p^5n^4

= 1 * p^(5/2)n^2

= p^(5/2)n^2

This is not equivalent to p^18n^6 √p. In fact, p^(5/2)n^2 cannot be simplified any further without additional information about the expression.  ,

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To solve the savings plan balance, we have to calculate the interest for 19 months. The formula for calculating interest for compound interest is given below:$$A = P \left(1 + \frac{r}{n} \right)^{nt}$$where A is the amount, P is the principal, r is the rate of interest, t is the time period and n is the number of times interest compounded in a year.

The given interest rate is 11% per annum, which will be converted into monthly rate and then used in the above formula. Therefore, the monthly rate is $r = \frac{11\%}{12} = 0.0091667$.

The monthly payment is $PMT = $250. We need to find out the amount after 19 months. Therefore, we will use the formula of annuity.

$$A = PMT \frac{(1+r)^t - 1}{r}$$where t is the number of months of the plan and PMT is the monthly payment. Putting all the values in the above equation, we get:

$$A = 250 \times \frac{(1 + 0.0091667)^{19} - 1}{0.0091667}$$$$\Rightarrow

A = 250 \times \frac{1.0091667^{19} - 1}{0.0091667}$$$$\Rightarrow

A =250 \times 14.398$$$$\Rightarrow A = 3599.99$$

Therefore, the savings plan balance after 19 months with an APR of 11% and monthly payments of $250 is $3599.99 (approx).

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Answer:

total no. of possibilities =20

Step-by-step explanation:

probability of $20 bill=4/20=1/5

probability of $10 bill=6/20=3/10

probability of $5 bill=8/20=2/5

2(b - 8) < -23

To translate the sentence, we ill need to break it down into bits

difference of a number and 8

let the number = b

Difference means subtraction. We will subtract 8 from the number

difference of a number and 8 = b - 8

Twice the difference: we will multiply the difference by 2

Twice the difference of a number and 8 = 2(b - 8)

Twice the difference of a number and 8 is less than – 23

less than – 23 is written as < -23

Twice the difference of a number and 8 is less than – 23:

2(b - 8) < -23

To make a profit Kelsey must make and sell more than 49  additional pendants

in this given sum we need to find how many additional pendents kelsey need to make and sell to make profit .  The information that are give in the sum

she has to pay $200 for the rent

materials for each pendant is $ 7.8 .

for 10 pendants  the total will be 10*7.8 = $78

Therefore she will spend a total of $(78 +200) = $278

So to make a profit the amount of pendants kelsey make multiply it by 13.50 should be greater than the totall amount she spend in making 10 pendants $278 added to the number  of pendants she makes multiply by 7.8 that is the total cost

let the no. of pendants she need to make be x

we can write then above explanation as

13.50x >278 + 7.8x

=> 13.5x - 7.8x > 278 +7.8x - 7.8x      [subtracting 7.8x on both side]

=> 5.7x > 278

=> x > 278/5.7 = 48.77 = 49 (approx.)

Kelsey needs to make more than 49 pendants rto make a profit.

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The sum of the interior angles in a triangle is 180 degrees. Therefore, if we add up all of these angles, they must be equal to 180.

64 + 85 + (4x + 27) = 180

176 + 4x = 180

4x = 4

x = 1

Let's check our answer!

4(1) + 27 = 31

31 + 85 + 64 = 180

180 = 180

Hope this helps!! :)

Answer:

x=1

Step-by-step explanation:

The sum of the angles in a triangle is 180

64+ 85+ 4x+27 = 180

Combine like terms

4x+176=180

Subtract 176 from each side

4x+176-176 =180-176

4x = 4

Divide by 4

4x/4 = 4/4

x=1

The percent error in Guido's estimate is 40%.

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

Estimate = 3 hours

Actual = 5 hours

To find the percent error, we can use the formula:

Percent error = (|estimated value - actual value| / actual value) x 100%

Substitute the known values in the above equation, so, we have the following representation

|estimated value - actual value| = |3 - 5| = 2

So, we have

Percent error = (2 / 5) x 100%

Percent error = 40%

hence, the error is 40%

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Answer:

Squared differences between actual and predicted y

Step-by-step explanation:

The least squares regression method used in predictive modeling for linear regression models produces a best fit line which will minimize the square of the mean difference between the actual and projected or predicted values of the dependent, y variable. Hence, the when the sum of the squared value of the difference between the actual and predicted values (residual) are taken, the fit which gives the minimum sum of squared value is the best fit line upon which the estimated regression equation is based.

The true statement is that the estimated regression equation by least squares method minimizes the sum of the (c) Squared differences between actual and predicted y.

In regression, the least square method is used to estimate quantities.

This is done in order to minimize the sum of the squares of the differences between the observed values and the estimated values.

In this case, the observed value and the estimated values represent the actual and predicted y

Hence, the true statement is that the estimated regression equation by least squares method minimizes the sum of the (c)

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A.  The payback period is 7.2 years. The net present value of the proposed investment is 3720.55.

B. No, the project does not meet the company's cash payback criteria.

C.  Yes, the project does meet the net present value criteria for acceptance.

A. The truck costs $55,440 and generates annual cost savings of $7,700. So the payback period is the cost of the truck divided the expected amount the truck will generate.

                $55,440 / $7,700 = 7.2 years

To solve for the net present value, we say

Net Present Value = ∑ [(Cash inflow in period t) / (1 + \(r^{t}\)] - Initial Investment.

NPV = (($7,700 / (1 + 0.08)¹) = 7 129.63

+ ($7,700 / (1 + 0.08)²) = 6601.51

+ .($7,700 / (1 + 0.08)³ = 6112.51

+ ($7,700 / (1 + 0.08)⁴) = 5659.73

+ ($7,700 / (1 + 0.08)⁵) = 5240.49

+ ($7,700 / (1 + 0.08)⁶) = 4 852.31

+ ($7,700 / (1 + 0.08)⁷) = 4492.88

+($7,700 / (1 + 0.08)⁸)  = 4160.07

+ ($27,600 / (1 + 0.08)⁸)) = 14911.42

- $55,440

We add all these values together and subtract by  $55,440

7 129.63 + 6601.51 + 6112.51 + 5659.73 + 5240.49 +4 852.31 + 4492.88 + 4160.07 + 14911.42 - $55,440

59160.55 - 55,440

NPV = 3720.55

B. The cash payback period of the project is 7.2 years. The company's cash payback criteria state that a project should not be accepted unless it has a payback period that is less than 50% of the asset's estimated useful life, which would be 4 years which is 50% of 8 years. Since 7.2 years is greater than 4 years, the project does not meet the company's cash payback criteria.

C. The positive NPV of $3,720.55 shows that embarking on the prooject will be valuable to the company. This means the project meets the NPV criteria for acceptance.

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