Clarissa is 14 years old. Her brother, Luis, is 4 years more her age. Write a numerical experssion that can be used to find Luis's age. Do not use an equal sign in the experssion or find Luis's age.

Answer:

5 and a half hours

Step-by-step explanation:

How many times does 50 go in to 275

1. 50

2. 100

3. 150

4. 200

5. 250

and to get 275 you add half of 50 which is 25

Answer:

5 hours and 30 minutes.

Step-by-step explanation:

5x50=250

remainder 25

half of an hour is 30 mins and half of 50 is 25.

therefore; add the 5h and 30m to get 5h30m

Answer:

r = 3.95

Explanation:

A = \(\pi {r}^{2} \)

3.14r² = 15.6 (3.14)

Divide by 3.14

r² = 15.6

r = \( \sqrt{15.6} \)

r ≈ 3.95

If unknown to the producer, 1% of all eggs shipped had salmonella. in this situation, 1% is a parameter, and 9 is a statistic. So, correct option is D.

In statistics, parameters are characteristics of a population, while statistics are characteristics of a sample. In this scenario, the population refers to all the eggs shipped on that particular day, while the sample is the 200 eggs that were tested.

The producer was unaware that 1% of all the eggs shipped that day had salmonella, which means that 1% is a parameter since it is a characteristic of the population.

On the other hand, the laboratory report shows that 9 out of the 200 eggs tested were contaminated with salmonella. Therefore, 9 is a statistic because it is a characteristic of the sample.

So, the correct answer is (d): 1% is a parameter, and 9 is a statistic. It is important to understand the difference between parameters and statistics because it helps in making inferences about a population based on a sample, which is an essential part of statistical analysis.

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Answer:its B

Step-by-step explanation:

The number of bananas are 6 and the number of peaches are 4.

What is system of equations?

A finite set of equations for which common solutions are sought is referred to in mathematics as a set of simultaneous equations, also known as a system of equations or an equation system.

Given:

Hua and her children went into a grocery store and she bought $9

worth of bananas and peaches.

Each banana costs $0.50 and each

peach costs $1.50. She bought a total of 10 bananas and peaches altogether.

Let

B = number of bananas

P = number of peaches

0.5 * B = cost of number of bananas purchased

1.5 * P = cost of number of peaches purchased

So,

B + P = 10                 ..(1)

0.5B + 1.5P = 9         ..(2)

From equation (1),

B = 10 - P        ..(3)

Plug value of B in equation (2),

0.5(10 - P) + 1.5P = 9

5 - 0.5P + 1.5P = 9

5 + P = 9

P = 4

Plug P = 4 in equation (3)

B = 10 - 4

B = 6

Hence, the number of bananas are 6 and the number of peaches are 4.

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Answer:

105+21=126

Step-by-step explanation:

Answer:

1. 6a^3

2. -6n^4

3. -7a

Step-by-step explanation:

Hope this helps

In a hypothesis testing context, before examining the data, one should typically decide whether the alternative hypothesis is one-sided or two-sided. This decision is based on the specific research question and the expected direction of the effect being tested.

It helps determine the appropriate statistical test and the formulation of the null and alternative hypotheses.

The computation of the p-value and the decision of whether or not to reject the null hypothesis are made after examining the data and conducting the statistical analysis. The p-value is a measure of the strength of the evidence against the null hypothesis, and it is compared to a predetermined significance level to make a decision. If the p-value is below the significance level, the null hypothesis is typically rejected in favor of the alternative hypothesis.

Therefore, the correct answer is (c) decided whether the alternative hypothesis is one-sided or two-sided.

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The expression as a single real number is \(\frac{1-\sqrt{3} }{2}\) .

What is trignomentry ?

Trigonometry is a branch of mathematics that deals with the relationships between the angles and sides of triangles, particularly right triangles. It is used to study the properties of triangles and to solve problems involving angles and distances in two-dimensional space.

sin(π/6)cos(π/2) - cos(π/60)sin(π/2)

The first term in the expression, sin(π/6)cos(π/2), can be simplified as follows ,

sin(π/6) = √(3)/2, cos(π/2) = 0

so sin(π/6)cos(π/2) = (√(3)/2) * 0 = 0

The second term in the expression, -cos(π/60)sin(π/2) , can be simplified as follows ,

sin(π/2) = 1, cos(π/60) = sqrt(3)/2 - 1/2

so -cos(π/60)sin(π/2) = -(sqrt(3)/2 - 1/2) * 1 = -sqrt(3)/2 + 1/2

Now we can substitute the simplified values back into the original expression ,

0 - (-sqrt(3)/2 + 1/2)

and combining like terms, \(\frac{1-\sqrt{3} }{2}\),

Hence ,  The expression as a single real number is \(\frac{1-\sqrt{3} }{2}\) .

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Answer:

$180

Step-by-step explanation:

Let's say Rita's weekly salary before taxes is x.  We are told that 10% is removed for taxes.  The amount remaining is $162.

We can write this as:

x - (0.1)x = $162

This can be read as:  (Salary For a Week) - 10%(Salary For a Week) = Remaining haul

0.9x = $162

x = $180

======================

CHECK:

Does Rita have $162 after 10% of her $180 weekly salary is removed for taxes?

(10%)($180) = $18   [10% is equal to 0.10]

$180 - $18 = $162   YES

Kathy has 28 dimes, 33 quarters, and 7 nickels, for a total of 68 coins which was found by solving three simultaneous equations.

Given: Kathy possesses a total of 68 coins. She has 5 more dimes than quarters and 5 times as many nickels as quarters.

Let,

number of of coins of dimes = d

number of coins of quarters = q

number of coins of nickels = n

From the given information, we can form equations as follows:

q = 5 + d

q = 5n

d + q + n = 68

Arranging these equations,

q = 5n

d = 5n - 5

n = q/5

On solving these three equations simultaneously,

we get

d = 28

q = 33

n = 7

Therefore, Kathy has 28 dimes, 33 quarters and 7 nickels which together form 68 coins in total.

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Answer:

29,800

Step-by-step explanation:

that will be 149 x 2 which equals 298

149

 ×2         Multiply 9 × 2 = 18

------        Keep the 8 carry the 1 multiply 4 by 2 then add 1 finally multiply 2 by 1

298

Then add two zeros at the end since we're multiplying a number with two zeros. (This method only works for numbers that end with zeros)

Final answer: 29800

TSA:-

The one function that satisfies f '(x) = 3x² + 6x + 5 is f(x) = x³ + 3x²÷2 + 5x + C. where C is the constant of integration.

The given function's derivative is f'(x) = 3x² + 6x + 5.

To find the original function f(x), we need to integrate the derivative.

We can integrate the given function f'(x) term by term, using the power rule of integration:

∫f'(x) dx = ∫(3x² + 6x + 5) dx

f(x) = x^3 + 3x²÷2 + 5x + C

Any constant value of C can be added to the above function, resulting in an infinite number of functions that satisfy

f '(x) = 3x² + 6x + 5.

f(x) = x^3 + 3x²÷2 + 5x + 2 and f(x) = x³ + 3x²÷2 + 5x - 7 are both valid solutions to f '(x) = 3x² + 6x + 5, with different constant values of C.

This is because the constant of integration represents an arbitrary constant, and when we take the derivative, the constant term becomes zero. Hence, any function that differs from the original function by a constant value will also have the same derivative.

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True, Logarithms were used extensively for complicated calculations before the electronic calculator became widely available. A logarithm is a mathematical function that helps simplify complex arithmetic operations by converting multiplication and division into addition and subtraction, respectively.

By using logarithms, complex calculations could be broken down into simpler steps and performed more easily. Logarithms were particularly useful in fields such as astronomy, physics, and engineering, where large numbers and complicated formulas were common. However, with the advent of electronic calculators, the use of logarithms for everyday calculations declined. Today, logarithms are still used in certain fields and for specific applications, but they are no longer the primary tool for carrying out complicated calculations.

Before the electronic calculator became widely available, logarithms were used to carry out complicated calculations. Logarithms simplified complex calculations by turning multiplication and division operations into addition and subtraction.

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Answer: This question has two answers: 3 or 1 either or

Step-by-step explanation:

Answer:

Where is the picture?

Answer:

132

Step-by-step explanation:

Answer:

Step-by-step explanation:

2.8 × (-11) - 3 × 8 =

-30.8 - 24 =

-54.8 ( in fraction -274/5)

\(~~~~~~ \textit{Continuously Compounding Interest Earned Amount} \\\\ A=Pe^{rt}\qquad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill & \$1600\\ r=rate\to 1.4\%\to \frac{1.4}{100}\dotfill &0.014\\ t=years\dotfill &3 \end{cases} \\\\\\ A=1600e^{0.014\cdot 3} \implies A \approx 1668.63\)

Answer:

9 groups of 3 equal 27

Step-by-step explanation:

Fill in the missing number.

9 groups of 3 equal 27

because 9 × 3 = 27

Answer:

Product of 2,4,6 is 48❤️❤️❤️❤️

Answer:

18

Step-by-step explanation:

we can solve this as a ratio, from teaspoons to tablespoon is 3:1. if the tablespoon is 6 then the ratio becomes ?:6. Since we multiplied 1 by 6 we have to multiply 3 by 6 making the ratio 18:6.

Answer:

The option d is the correct answer

Answer:

{(5,0),(0,5),(-5,-5)}

Step-by-step explanation:

The patient will pay $452.20 in full today after applying the 15% discount.

If the patient receives a 15% discount for a visit to the healthcare provider and the total charge for the service is $532.00, the patient will pay 100% - 15% = 85% of the total charge.

To calculate the amount the patient will pay in full today, we need to find 85% of $532.00.

85% of $532.00 can be calculated as:

(85/100) * $532.00 = $452.20

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Answer:

\( \frac{7}{3} and \: \frac{8}{3} \)

Step-by-step explanation:

so let's start with what we know:

\(2 \frac{1}{3} \times 2 \frac{2}{3} \)

now to get it into non mixxed numbers:

2*3 = 6

6+1

_____

\( \frac{7}{3} \)

2*3=6

6+2=8

______

\( \frac{8}{3} \)

now to cross mutiply them:

7*3