What is 50% of 30 and what is 30% of 10

Answer:

see the attachment photo!

Answer:

Below

Step-by-step explanation:

Center (h,k)   is - 2, -2     radius is   1

Equation for a circle with center (h,k) and radius r    is  :

       (x-h)^2 + (y- k )^2 = r^2   <====you have to learn/remember this

 Plug in the values above to get

(x+2)^2  + (y+2)^2 = 1

Answer:

(x+2)^2+(y+2)^2=0.5625

Step-by-step explanation:

trust

Answer:

Step-by-step explanation:

Its basic all you do is multiply 4 x 3 and you get 12 ywwww!!!!!!!!!

A.The probability that all transistors selected are defective is 27/4913

B. The probability of that non will be defective is 2744/4913

Probability means possibility. It is a branch of mathematics that deals with the occurrence of a random event. The value is expressed from zero to one. Probability has been introduced in Maths to predict how likely events are to happen. The meaning of probability is basically the extent to which something is likely to happen.

probability = sample space/total possible outcome

total possible outcome here is 17

number of defective transistors is 3

therefore the probability to pick a defective transistors is 3/17

if 3 transistors are selected, the probability to pick 3 defective transistors is 3/17×3/17×3/17=27/4913

the probability to pick non-defective transistor is (17-3)/17= 14/17

if 3 transistors are selected, the probability to pick 3 non-defective transistors is 14/17×14/17×14/17=2744/4913

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Answer:

800 books

problem solving steps：

adults:60%

young people:5%

children=100%-60%-5%

=35%

35%=280 books

1%=280÷35

=8

100%=800

so,there are 800 books

Here is the equation:

\(6(x-8)=72\)

In the equation, 6 is being multiplied by x - 8. There are two ways to solve this equation.

FIRST METHOD

You need to remove the parentheses by multiplying everything in the parentheses by 6.

\(6(x-8) = (6\times x) + (6 \times -8)\)

Multiply:

\(6 \times x = 6x\\6 \times -8 = -48\)

Remember:

NEGATIVES

POSITIVES

Now combine the two values and rewrite the equation:

\(6x+-48 \rightarrow 6x-48=72\)

Since you're looking for x alone, you will need to remove the -48. This can be done by adding 48 to both sides, -48+48=0, which cancels it out).

\(6x-48+48=72+48\\6x=120\)

Lastly, divide both sides by 6 to leave x alone.

\(\frac{6x}{6} = \frac{120}{6}\)

\(x=20\)

SECOND METHOD

While the first step is somewhat complicated, there is a much easier way.

\(6(x-8)=72\)

Start by dividing both sides by 6 to remove the number next to the parentheses.

\(\frac{6(x-8)}{6} =\frac{72}{6}\)

\(x-8=12\)

(The 6 is cancelled out since 6 divided by 6 equals 1, and 1 × any number is that number).

Now you need to leave the variable alone, which can be done by adding 8 to both sides(-8+8=0 and -8 is cancelled out).

\(x-8+8=12+8\\\)

\(x=20\)

Either method can be used, but the second one is definitely shorter!

The answer is x = 20.

Answer:

x=20

Step-by-step explanation:

In edge you will get it right.

I took the test.

Hope this helps ;)

Answer: 1.3 hours

Step-by-step explanation: I believe it’s 1.3 hours since Pump A can fill a tank in 8 hours, and Pump B can fill a tank in 6 hours, then you divide 8 and 6 which is about 1.333.

Answer:

3.43 hours

Step-by-step explanation:

For every hour, Pump A can fill 1/8 tank and pump B can fill 1/6 tank.

For every hour, both pump A and pump B can fill:

1/8 + 1/6 = 14/48 = 7/24 (tank)

It will take: 1 : 7/24 = 24/7 ≈ 3.43 (hours)

Answer: The answer is D: 7 1/2.

Step-by-step explanation:

Answer:

1/2 or one half

Step-by-step explanation:

Answer:

The slope is 1/2.

Step-by-step explanation:

To find the slope of a line, divide yB - yA by xB - xA.

(yB - yA)/(xB - xA)

(2 - 5)/ (-2 - 4)

-3/-6

Dividing two negatives make a positive.

0.5

The slope is 0.5, or 1/2.

Answer:

c)

Step-by-step explanation:

my guess is if she needs 1.04 tablets a day, and 1 tablet is closer to that than any other option listed

Given:

To simplify:

Explanation:

It can be written as,

Therefore, the square root of 49 is 7.

Final answer:

The square root of 49 is 7.

Answer:

$10.90

Step-by-step explanation:

I did 54.50 ÷ 5

Answer:

Step-by-step explanation:

Hi

Answer:

Can you show a screenshot of the problem

Make both equal fractions, 1/6 = ?/3

Answer:

1/2 yds.

Step-by-step explanation:

Make 1/3 and 1/6 into equal fractions...2/6 and 1/6.

Add 2/6 and 1/6 to get 3/6.

3/6 simplified is 1/2.

Hope this helped : )

Answer:

x= -1/3

y= -3 1/3

Step-by-step explanation:

Make both of them into y=Mx+b form

y=-x-3

y=(-x-7)/2

Substitute the x-3 in the first equation for the y in the second one.

x-3=(-x-7)/2

2x-6=-x-7

3x=-1

x=-1/3

Now that we have x, we can solve for y.

y=-x-3

y=-1/3-3

y=-3 1/3

Answer: x=6

Step-by-step explanation:

Answer:

x = -30

Step-by-step explanation:

Answer: yes

Step-by-step explanation:

if you multiply or divide 2 negatives together they make a positive if you add no

Answer:

Yes

Step-by-step explanation:

\(-(-3)=+3\), so yes

Answer:

Step-by-step explanation:

197.97

Answer:

Yes  dog owners in the country spend more time walking their dogs than do dog owners in the city

Step-by-step explanation:

From the question we are told that

    The sample size from country is \(n_1 = 21\)

     The  sample  size from city is  \(n_2 = 23\)

     The  sample  mean for  country is   \(\= x_1 =  15 \)

      The  Sample  mean for  city is  \(\= x_2 =  10\)

       The  standard deviation for country  is \(\sigma _1 =  4\)

        The standard deviation for  city is  \(\sigma _2 =  3\)

Let the level of significance is  \(\alpha = 0.05\)

The null hypothesis is  \(H_o : \mu_1 = \mu_2\)

The  alternative hypothesis is  \(H_a : \mu_1 > \mu_2\)

 The  pooled standard deviation is  mathematically represented as

       \(s =  \sqrt{ \frac{s_1 ^2  *  (n_1 - 1 ) + s_2 ^2 *  (n_2 - 1 )}{ df} }\)

Here  df is the degree of freedom which is mathematically represented as

          \(df =  n_1 + n_2  - 2\)

         \(df =  21 + 23 -2 \)

        \(df =  42\)

So

    \(s =  \sqrt{ \frac{4 ^2  *  (15.0 - 1 ) + 3 ^2 *  (10 - 1 )}{ 42} }\)  

    \(s =  3.5\)

Generally the test statistics is mathematically represented

        \(t =  \frac{\= x_1 - \= x_2 }{ s *  \sqrt{\frac{1}{n_1} +\frac{1}{n_2}  } }\)

          \(t =  \frac{ 15 -10 }{ 3.5 * \sqrt{\frac{1}{ 21 } + \frac{1}{23} } }\)

\(t =  4.733\)

Generally the p-value  is obtained from the student t-distribution table   table , the value  is  

         \(P(T >   4.733)=  t_{4.733,  42 } = 0.000013  \)

From the calculation we see that

         \(p-value  < \alpha\)

So we reject the null hypothesis

Hence we can conclude that there is  sufficient evidence to support the claim that dog owners in the country spend more time walking their dogs than do dog owners in the city

A. inequality that compares the temperatures of the two cities is: -2 > -6. B. inequality means city R, represented by -2 on the number line greater than the temperature of city S, represented by -6 on the number line. C.  city R is warmer than city S.

In mathematics, an inequality is a statement that compares two values or expressions and indicates that one is greater than, less than, or equal to the other. Inequalities are used to describe relationships between values that are not necessarily equal, and they are written using special symbols such as < (less than), > (greater than), ≤ (less than or equal to), or ≥ (greater than or equal to).

For example, the inequality 3x + 2 < 10 means that the expression 3x + 2 is less than 10. This inequality can be solved for x by subtracting 2 from both sides and then dividing by 3, yielding x < 2. This means that any value of x that is less than 2 will satisfy the inequality.

The inequality that compares the temperatures of the two cities is: -2 > -6

This inequality means that the temperature of city R, represented by -2 on the number line, is greater than the temperature of city S, represented by -6 on the number line. In other words, city R is warmer than city S.

On the number line, the further to the right a number is, the greater it is. Since -2 is to the right of -6, this indicates that -2 is greater than -6, which represents the fact that city R is warmer than city S.

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Answer shown in bold

The non-bolded values to the left are not to be typed in the answer box. They're present to keep track of the values. In other words, you'll type "40" without quotes into the first box, then "19" without quotes in the second box, and so on.

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

Explanations:

Let me know if you have any questions.

All thre functions share the same y intercept

We can analyze the characteristics of the given functions based on the information provided in the table.

We cannot determine which function has the greatest maximum based on the table alone, as we do not have the complete graph of any of the functions.

We can see from the table that h(x) has an x-intercept of 0, which is the smallest among the three functions. Therefore, we can say that h(x) has the smallest x-intercept.

We can see from the table that g(x) has a minimum value of -204, which is the smallest among the three functions. Therefore, we can say that g(x) has the smallest minimum value.

We cannot determine if all three functions share the same domain based on the table alone. We can only see that all three functions have been evaluated at the same set of input values.

We can see from the table that the y-intercept of f(x) is 2, the y-intercept of g(x) is 3, and the y-intercept of h(x) is 4. Therefore, we can say that all three functions have different y-intercepts.

Therefore, the statements that can be used to compare the characteristics of the functions are:

h(x) has the smallest x-intercept.

g(x) has the smallest minimum value.

All three functions have different y-intercepts.

a.The Industry Average Salary is $55,680. b.The Firm A's Average Salary is $51,718.40 .c. Firm B's average salary is approximately 112.27% of Firm A's average salary.

a. To determine the industry average salary, we can use the information that the industry average salary is 96% of Firm B's average salary. Firm B's average salary is $58,000. Therefore, we can calculate the industry average salary as follows:

Industry Average Salary = 96% of Firm B's Average Salary

= 0.96 * $58,000

= $55,680

b. Firm A's average salary is stated as 93% of the industry average salary. To calculate Firm A's average salary, we can multiply the industry average salary by 93%:

Firm A's Average Salary = 93% of Industry Average Salary

= 0.93 * $55,680

= $51,718.40

c. To express Firm B's average salary as a percentage of Firm A's average salary, we can divide Firm B's average salary by Firm A's average salary and multiply by 100:

Percentage = (Firm B's Average Salary / Firm A's Average Salary) * 100

= ($58,000 / $51,718.40) * 100

≈ 112.27%

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When it comes to arrays in mathematics, it usually involves objects or numbers that are arranged in rows and columns.In order for a set of squares to be considered an array, it must meet certain requirements. These requirements are:All rows must have the same number of squares. All columns must have the same number of squares. Squares must be organized in an orderly manner. A set of squares that does not meet these requirements is not an array.

An array is a set of objects or values that are organized in a specific order. It is used in programming, mathematics, and other fields to make data manipulation and analysis easier.

When it comes to arrays in mathematics, it usually involves objects or numbers that are arranged in rows and columns.In order for a set of squares to be considered an array, it must meet certain requirements. These requirements are:All rows must have the same number of squares. All columns must have the same number of squares. Squares must be organized in an orderly manner. A set of squares that does not meet these requirements is not an array.

For example, if a set of squares is arranged in a random or disorganized manner, it cannot be considered an array because it does not meet the orderly requirement. Additionally, if the number of squares in each row or column is different, it cannot be considered an array because it does not meet the uniformity requirement.

Overall, it is important to remember that an array is a specific type of organization and cannot be applied to any random set of objects or values.

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Answer:

d i believe its do but i need 20 characters

Answer:

D...

Step-by-step explanation:

I believe its D not sure sorry

The area of triangle ADE is,

⇒ A = 48 square units

We have to given that,

In the diagram , DE is a midsegment of triangle ABC.

And, The area of triangle ABC is 96 square units

Now, We know that,

Since DE is a midsegment of triangle ABC, it is parallel to AB and half the length of AB. Therefore, DE is half the length of AB.

Hence, the area of triangle ADE is half the area of triangle ABC,

That is,

A = 96 / 2

A = 48 square units

Thus, The area of triangle ADE is,

⇒ A = 48 square units

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