help pls with the math

Answer:

Area = 1/4 * pi * diameter^2

The area is 78.5^2

Answer:

Step-by-step explanation:

1 Ton  is equivalent to 2204.62 pounds

and 200 billion = 200.000.000.000 pounds

So, if we want to know how many tons there are in 200 billion pounds, We must apply a simple rule of three.

Then

1 Ton -------------------------2204.62 pounds

  X    -------------------------200.000.000.000 pounds

\(X=\frac{1 ton * 200.000.000.000 pounds}{2204.62 pounds} =90.718.581,89 tons\)

So, We can say that United States exports over 90 million tons of coal

Answer:

Step-by-step explanation:

Recall that, in order to find the area of a parallelogram is to multiply height by base, and the height is 14, and the base is 5, so 14 x 5 = 70.

Answer:

5.84 x10.^4

Step-by-step explanation:

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the  

10

If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.

Answer:

150 pages

Step-by-step explanation:

76%

Write as a decimal by dividing by 100

76% / 100 = 0.76x

0.76

Add a decimal (x)

0.76x

Set equal to 114 (the page Mary is at)

114 = 0.76x

Divide 0.76 by 114

x = 150

There are 150 pages in the book

Hope this helps :)

Answer:

Step-by-step explanation:

Answer:

150 pages. Mark me brainiiest.✌✌

Step-by-step explanation:

76%

Write as a decimal by dividing by 100

76% / 100 = 0.76x

0.76

Add a decimal (x)

0.76x

Set equal to 114 (the page Mary is at)

114 = 0.76.

Divide 0.76 by 114 x = 150.

There are 150 pages in the book.

Answer:

19

Step-by-step explanation:

30-26.39=3.61

3.61 divided by 0.19 = 19

hope this helps :)

the distance from (4,-4) to (-7,-8) is 11.70

Answer: 5

Step-by-step explanation:

use distance formula for these types of equations x1-x2 squared plus y1 -y2 squared. add both sides together square them and then get a total and then square your total for the answer. In this case 5

It is saying that irrational numbers like pie can be broken down into approximate irrational numbers and plotted onto points.

Example \(\sqrt{1.6}\) approximate value is 1.264911

That number can be plotted in place of \(\sqrt{1.6}\)

Experimental probability refers to what actually occurs when the circumstance is tried out as an experiment, as opposed to theoretical probability, which is the phrase used to describe what we expect to happen based on math theory.

Probability is the concept that describes the likelihood of an event occurring.

In real life, we frequently have to make predictions about how things will turn out.

We may be aware of the result of an occurrence or not.

When this occurs, we state that there is a possibility that the event will occur.

In general, probability has many excellent applications in games, commerce, and this newly growing area of artificial intelligence

The chance of an event can be calculated using the probability formula by only dividing the favourable number of possibilities by the total number of potential outcomes.

Hence, Experimental probability refers to what actually occurs when the circumstance is tried out as an experiment, as opposed to theoretical probability.

learn more about probability click here:

brainly.com/question/13604758

#SPJ1

Answer:

< B = 180-30-65=85°

< E = 85°

< D = 30°

< C = 65°

BC = 20/35 × 28 = 16

Answer:

D is the answer

Step-by-step explanation:

it correlates with the points u gave

Answer:

D)

Step-by-step explanation:

Integers are numbers without decimals

The integers could you have multiplied are 9 and 2

Let the numbers be x and y

So, we have:

\(\mathbf{x \times y}\)

Increase x by 1 and reduce y by 1.

So, we have

\(\mathbf{(x +1) \times (y -1) = 6 + xy }\)

Open brackets

\(\mathbf{xy -x + y - 1 = 6 + xy}\)

Subtract xy from both sides

\(\mathbf{ -x + y - 1 = 6}\)

Collect like terms

\(\mathbf{ -x + y = 6 + 1}\)

\(\mathbf{ -x + y = 7}\)

Rewrite as:

\(\mathbf{ y -x= 7}\)

The above means that, the difference between the integers is 7.

There are several integers that fit the above description;

One possibility is: 9 and 2

Read more about products at:

https://brainly.com/question/3208278

The probability of selecting a striped marble, not replacing it, then selecting a black marble is 4/15.

The probability of selecting a striped marble on the first draw is 6/10, since there are 6 striped marbles out of a total of 10 marbles in the bag.

After the first marble is drawn, it is not replaced, so there are now 9 marbles left in the bag. Out of these, there are 4 solid marbles and 5 striped marbles. Therefore, the probability of selecting a black marble on the second draw is 4/9.

To find the probability of both of these events occurring together, we multiply the probabilities

P(striped, then black) = P(striped) × P(black | striped not replaced)

P(striped, then black) = (6/10) × (4/9)

P(striped, then black) = 24/90

P(striped, then black) = 4/15

Learn more about probability here

brainly.com/question/11234923

#SPJ4

The given question is incomplete, the complete question is:

There are 10 marbles in a bag (4 solid, 6 striped) .what is the probability of selecting a striped marble, not replacing it, then selecting a black marble?

The slope of the tangent to the curve \(y = 6 + 5x^2 - 2x^3\) at the point where x = a is given by the derivative of the equation, which is obtained by differentiating the equation with respect to x.

To find the slope of the tangent to the curve \(y = 6 + 5x^2 - 2x^3\) at the point where x = a, we need to take the derivative of the equation with respect to x. Differentiating each term of the equation, we get:

dy/dx = \(d(6)/dx + d(5x^2)/dx - d(2x^3)/dx\)

The derivative of a constant (6) is zero, and for the other terms, we apply the power rule of differentiation. The power rule states that the derivative of \(x^n\) with respect to x is \(nx^{(n-1)\). Applying the power rule, we obtain:

dy/dx = \(0 + 2(5x) - 3(2x^2)\)

Simplifying this expression, we get:

dy/dx = \(10x - 6x^2\)

Now, to find the slope of the tangent at the point where x = a, we substitute a for x in the derivative:

m = \(10a - 6a^2\)

Therefore, the slope of the tangent to the curve \(y = 6 + 5x^2 - 2x^3\) at the point where x = a is given by the expression \(10a - 6a^2\).

Learn more about slope of the tangent here:

https://brainly.com/question/32393818

#SPJ11

The complete table of the function is as follows:

A function, is an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable

In simpler terms functions relates input and output.

Therefore, let's complete the function in the table.

Hence,

f(x) = - 2x² + 1

when x = -4

f(-4) = - 31

when x = -2

f(-2) = - 2(-2)² + 1 = -8 + 1 = - 7

when x = 0

f(0) = - 2(0)² + 1 = 1

when x = 1

f(1) = - 2(1)² + 1 = - 2 + 1 = - 1

when x = 3

f(3) = - 2(3)² + 1 = -2(9) + 1 = - 18 + 1 = - 17

learn more on function here: brainly.com/question/19381679

#SPJ1

A residual is the difference between "the measured and predicted values of the quantity of interest".

In regression analysis, a residual would be the difference between an observable and anticipated value.

The formula is;

Residual = Observed value – Predicted value

Some key features regarding the residuals are-

To know more about the residual, here

https://brainly.com/question/1447173

#SPJ4

Answer:

2nd option is the answer

Step-by-step explanation:

The relation R is an equivalence relation, satisfying the properties of reflexivity, symmetry, and transitivity.

a. The relation R, which is defined as {(a, b) | a and b have the same age}, can be identified as an equivalence relation.

b. The relation R satisfies the properties of reflexivity, symmetry, and transitivity.

Reflexivity: For any person a, (a, a) belongs to R because a has the same age as itself.

Symmetry: If (a, b) belongs to R, then (b, a) also belongs to R because if a and b have the same age, then b and a also have the same age.

Transitivity: If (a, b) and (b, c) belong to R, then (a, c) also belongs to R because if a has the same age as b, and b has the same age as c, then a and c have the same age.

Therefore, the relation R is an equivalence relation that satisfies the properties of reflexivity, symmetry, and transitivity.

Learn more about equivalence relation here:

https://brainly.com/question/30956755

#SPJ11

Answer:

[0,infinity)

Step-by-step explanation:

Since it's a modulus function, f(x) will have a range of [0,infinity). Use desmos for graphing it

Based on this evaluation, the correct answer is:

d. "false : 14 is 104"

The value of 's' after the given statement can be determined by evaluating each part of the expression step by step:

1. Evaluate (!true): Since 'true' is negated using the '!' operator, this expression becomes 'false'.

2. Concatenate " : " to "false": The resulting string also becomes "false : ".

3. Calculate (10 + 4): This arithmetic expression is equals to  14.

4. Concatenate "14" to "false : ": The resulting string becomes equal to "false : 14".

5. Finally, concatenate " is 104" to "false : 14": The final value of 's' becomes "false : 14 is 104".

To learn more about  concatenate : brainly.com/question/30365839

#SPJ11

The expected value of the bet if the odds that the horse will win are 3 to 12 is $18.8

What is expected value?

Expected value is the predictive value of all the possibilities that occur by multiplying the value by the probability.

Winning probability = odds / total outcomes

= 3 / (3 + 12)

= 3 / 15

= 0.2

Now, we need to calculate expected value.

= winning probability x amount won - losing probability x amount lost

= 0.2 x 110 - (1 - 0.2) x 4

= 22 - 3.2

= 18.8

Thus, the expected value of the bet if the odds that the horse will win are 3 to 12 is $18.8

Learn more about expected value here:

brainly.com/question/16726343

#SPJ4

The domain of the relation in the graph is:

{-2, -1, 0, 2, 5}

A relation maps elements from one set (the domain) into elements from another set (the range).

Such that the domain is represented in the horizontal axis.

In the graph, we can see the points:

{(-2, -3), (-1, -1), (0, 3), (2, 1), (5, 2)}

The domain is the set of the first values of these points, then the domain is:

{-2, -1, 0, 2, 5}

The correct option is the first one.

Learn more about domains at:

https://brainly.com/question/1770447

#SPJ1

As the interest rate increases from 10 percent to 11 percent, the present value of the bond decreases from $1,074.47 to $1,058.31. Conversely, when the interest rate decreases to 9 percent, the present value increases to $1,091.19. This is because the discount rate used to calculate the present value is inversely related to the interest rate, meaning that as the interest rate increases, the present value decreases, and vice versa.

To compute the present value of a five-year, 10 percent coupon bond with a face value of $1,000, we need to discount the future cash flows (coupon payments and face value) by the appropriate interest rate.

Step 1: Calculate the present value of each coupon payment.
Since the bond has a 10 percent coupon rate, it pays $100 (10% of $1,000) annually. To calculate the present value of each coupon payment, we need to discount it by the interest rate.

Using the formula: PV = C / (1+r)^n
Where PV is the present value,

C is the cash flow,

r is the interest rate, and

n is the number of periods.

At an interest rate of 10 percent, the present value of each coupon payment is:
PV1 = $100 / (1+0.10)^1 = $90.91

Step 2: Calculate the present value of the face value.
The face value of the bond is $1,000, which will be received at the end of the fifth year. We need to discount it to its present value using the interest rate.

At an interest rate of 10 percent, the present value of the face value is:
PV2 = $1,000 / (1+0.10)^5 = $620.92

Step 3: Calculate the total present value.
To find the present value of the bond, we need to sum up the present values of each coupon payment and the present value of the face value.
Total present value at an interest rate of 10 percent:
PV = PV1 + PV1 + PV1 + PV1 + PV1 + PV2
PV = $90.91 + $90.91 + $90.91 + $90.91 + $90.91 + $620.92
PV = $1,074.47

When the interest rate goes to 11 percent, we would repeat the above steps using the new interest rate.
Total present value at an interest rate of 11 percent:
PV = PV1 + PV1 + PV1 + PV1 + PV1 + PV2
PV = $90.91 + $90.91 + $90.91 + $90.91 + $90.91 + $620.92
PV = $1,058.31

When the interest rate goes to 9 percent, we would repeat the above steps using the new interest rate.
Total present value at an interest rate of 9 percent:
PV = PV1 + PV1 + PV1 + PV1 + PV1 + PV2
PV = $90.91 + $90.91 + $90.91 + $90.91 + $90.91 + $620.92
PV = $1,091.19

Learn more about interest rate:

https://brainly.com/question/29451175

#SPJ11

To solve this problem, we can use the binomial probability distribution. Let's define a "success" as scoring a goal and a "failure" as missing a goal.

Then, each attempt by Sky can be considered a Bernoulli trial with probability of success p = 1/2.

Let X be the number of goals that Sky scores in five attempts. Then, X follows a binomial distribution with parameters n = 5 and p = 1/2.

To find the probability that Sky scores at least two goals, we need to calculate the probability of the following events:

P(X ≥ 2) = P(X = 2) + P(X = 3) + P(X = 4) + P(X = 5)

We can use the binomial probability formula to calculate these probabilities:

P(X = k) = (n choose k) * \(p^k\) *\((1-p)^(n-k)\)

where (n choose k) is the binomial coefficient, which represents the number of ways to choose k items from a set of n distinct items.

Using this formula, we get:

P(X = 2) = (5 choose 2) * \((1/2)^2\) * \((1/2)^3\) = 10/32

P(X = 3) = (5 choose 3) * \((1/2)^3\) * \((1/2)^2\) = 10/32

P(X = 4) = (5 choose 4) * \((1/2)^4\) *\((1/2)^1\) = 5/32

P(X = 5) = (5 choose 5) * \((1/2)^5\) * \((1/2)^0\) = 1/32

Therefore, the probability that Sky scores at least two goals is:

P(X ≥ 2) = P(X = 2) + P(X = 3) + P(X = 4) + P(X = 5) = (10 + 10 + 5 + 1)/32 = 26/32 = 13/16

So the probability that Sky scored at least two goals is 13/16.

Learn more about “  binomial distribution “ visit here;

https://brainly.com/question/31197941

#SPJ4

The total probability of scoring 1 goal is 5 * (1/32) = 5/32.Now we find the complementary probability:1 - (Probability of 0 goals + Probability of 1 goal) = 1 - (1/32 + 5/32) = 1 - 6/32 = 26/32.

Sky attempted to score a goal five times. For each attempt, she was equally likely to make a goal or miss. So the probability that Sky scored at least two goals is 13/16.

To find the probability that Sky scored at least two goals, we can use complementary probability, which means finding the probability that she scored fewer than two goals (either 0 or 1 goal) and subtracting that from 1.1.

Probability of scoring 0 goals: Since there are 5 attempts and she is equally likely to make a goal or miss (1/2 chance for each), the probability of missing all 5 is (1/2)^5 = 1/32.2.

Probability of scoring 1 goal: Sky could score in any of the 5 attempts, so we need to consider all possible ways of scoring one goal.

There are 5 ways (score in the 1st, 2nd, 3rd, 4th, or 5th attempt). The probability for each of these scenarios is (1/2)^5 = 1/32.

Therefore, the total probability of scoring 1 goal is 5 * (1/32) = 5/32.Now we find the complementary probability:1 - (Probability of 0 goals + Probability of 1 goal) = 1 - (1/32 + 5/32) = 1 - 6/32 = 26/32.

To express this as a common fraction, we can simplify it by dividing both the numerator and the denominator by their greatest common divisor (GCD), which is 2:26/32 = (26/2) / (32/2) = 13/16So the probability that Sky scored at least two goals is 13/16.

to learn more about probability click here:

brainly.com/question/13604758

#SPJ11

You need 500 factors to rank up and come to be Virtuoso in Brainly app.

Your can check the quantity of brainliest answer for your account itself

To come to be an virtuoso you at the least require five brainliest answer and also you must have it inside the variety of 30 days and now no longer the whole quantity of brainliest answer.

Whilst you get a complete of five brainliest answer inside 30 days then you may rank up.

Using the service is quite easy because after registering on the Brainly application, we can immediately ask and answer questions.

Brainly as an application that brings together students and educators online tries to accommodate the need for online teaching and learning activities. Another benefit of Brainly is that it presents a new, more fun way of learning various literature and science. Brainly brings students and educators together in a mobile platform that is very accessible and efficient.

For those of you who feel confused about a question that hasn't been answered, try the brainly site, the solution to each of your questions may already be answered here.

Learn more about brainly app at

https://brainly.com/question/29549542

#SPJ1

Answer:

4

Step-by-step explanation:3.92/4 = 4.35

However, since this problem is discrete, you can only make 4 chicken soups within the limit.

Answer:

If two triangles are proven to be congruent, then every single corresponding side and angle between those two triangles are congruent by CPCTC Theorem. CPCTC stands for Corresponding parts of congruent triangles are congruent.

Explanation:

CPCTC Theorem states that if two triangles are congruent, then their