What’s 10 x 5 ?


I get the concept but I still need help .

Answer:

$15

Step-by-step explanation:

Error = Approximate value - Exact value

$100 - $75 = $15

Answer:

24

Step-by-step explanation:

if you look at them they are each multiplied by 3

Answer: x=13, y=12

Step-by-step explanation:

Since AB and DC are parallel, we can use the special angle formed by the transversal AC.

4x is equal to 52. These angles are alternate interior angles and therefore equal in measure.

4x= 52. Divide both sides by 4.

x = 13

m<ADC is 90 degrees. (AD is perpendicular to DC. This forms a right angle measuring 90 degrees.

Use the triangle angle sum theorem to solve for y. (The 3 interior angles of a triangle sum to 180)

52+90+(3y+2) = 180. Combine like terms.

144+3y = 180. Subtract 144 from both sides.

3y= 36. Divide both sides by 3.

y= 12

Answer:

The equation is (i guess):

300*y = 23*t  -41,180

This is a linear equation, where y represents the population, and t represents time (in years)

Now, to find the gradient, we must derive the function y with respect to the time.

then we can write:

y = (23/300)*t - (41,180)/300.

now, remember that when we have:

y = a*x^n

we also have:

dy/dx = n*a*x^(n-1)

then in this case, we have:

dy/dt = (23/300) + 0

now we pass aain the 300 to the right:

300*dy/dt = 23.

d(300*y)/dt = 23

what does this mean?

Thie mean that for each unit of that t increases, we have an increase of 23 units in 300*y.

Answer:

11.8 feet below water

Step-by-step explanation:

15-(.5*4)=13

13-(.4*3)= 11.8

Answer:

Please, see the image below.

Step-by-step explanation:

I attached an image of the sketched region below.

You take into account that y=0 is the x axis.

Furthermore, you take into account that f(x)=-5x^3 is, for x=-2 and x=-1:

f(-2)=40

f(-1)=5

Finally, the region bounded by the equations is above the negative x axis.

Answer: -10.49.

Step-by-step explanation:

Using order of operations PEMDAS:

4(-8+4.5)/ 6.25 + (-8.25)

= 4 * -3.5 / 6.25 - 8.25

= -14/6.25 - 8.25

=  -2.24 - 8.25

= -10.49.

Answer:

The answer should be -10.49

Step-by-step explanation:

______________________________

______________________________

It would take them approximately 6.24 hours (or 6 hours and 14 minutes) to complete the order if they work together.

To solve this problem, we can use the formula:

Time = Work ÷ Rate

Time is the time it takes to complete the job, Work is the amount of work to be done, and Rate is the rate of work.

Let's assume that the amount of work to be done is 1 (it doesn't matter what unit we use as long as we are consistent).

Then, Maria's rate of work is 1/12 (she can do 1 job in 12 hours) and the new clerk's rate of work is 1/13 (he can do 1 job in 13 hours).

If they work together, their combined rate of work is the sum of their individual rates:

Rate = Maria's rate + New clerk's rate

Rate = 1/12 + 1/13

Rate = (13 + 12) / (12 x 13)

Rate = 25 / 156

So, their combined rate of work is 25/156 jobs per hour.

Now, we can use the formula to find the time it takes for them to complete the job together:

Time = Work ÷ Rate

Time = 1 ÷ (25/156)

Time = 156/25

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Answer:

True

Step-by-step explanation:

The easiest way to understand this problem is to first breakdown the notation. In words, the problem is stating 9 is NOT an element of the set containing the elements 4, 1, 8, and 7. Since 4\(\neq\)9, 1\(\neq\)9, 8\(\neq\)9, and 7\(\neq\)9 then 9 is not an element of this set and the statement is true.

Answer:

8=41

7=49

10=41

9=49

Step-by-step explanation:

angle 8 is given and since 7 and 8 make 90 then 7 =49 because 90-41=49. 10 and 8 are the same size (at least it looks like it) therefore 7 and 9 are the same too. So that is how I got the answers.

Answer:

x

+

2

y

=

4

,  

x

−

y

=

−

3

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

Use your calculator, its 57 meters.

Step-by-step explanation:

380/20 = 19

19x3=57

Answer:

A Between 0-1/2

Step-by-step explanation:

Because you don't know if the rug is solid white or a checkard rug. But I could be wrong with insufficient evidence of the rug

Answer:

ten to the third power

Step-by-step explanation:

Answer:

Ten cubed; Ten to the power of three, Ten to the third power

Step-by-step explanation:

Answer:

As the sample size is large enough, i.e. n = 198 > 30 the central limit theorem can be applied to describe the sampling distribution for the sample proportion of children who are​ nearsighted.

Step-by-step explanation:

Let the random variable p denote the proportion of children affected by nearsightedness.

The previously known proportion was, p = 0.12.

A random sample of n = 198 children are selected.

According to the Central limit theorem, if from an unknown population large samples of sizes n > 30, are selected and the sample proportion for each sample is computed then the sampling distribution of sample proportion follows a Normal distribution.

The mean of this sampling distribution of sample proportion is:

\(\mu_{\hat p}=p\)

The standard deviation of this sampling distribution of sample proportion is:

\(\sigma_{\hat p}=\sqrt{\frac{p(1-p)}{n}}\)

As the sample size is large enough, i.e. n = 198 > 30 the central limit theorem can be applied to describe the sampling distribution for the sample proportion of children who are​ nearsighted.

Answer:

2.3 hours

Step-by-step explanation:

From 3:12 pm to 4:12 pm, one hour passes.

From 4:12 pm to 5:12 pm, another hour passes.

From 5:12 pm to 5:30 pm, there are 18 minutes that pass.

Therefore, the total time elapsed is 2 hours and 18 minutes out of 60 minutes in an hour.

To convert this to a fraction, we can write:

2 hours + 18 minutes = 2 + 18/60 hours = 2.3 hours

So, 2.3/1 hour passes from 3:12 pm to 5:30 pm.

The width of the rectangle whose perimeter is 37 cm is 6.25 cm.

A branch of mathematics known as algebra deals with symbols and the mathematical operations performed on them.

Variables are the name given to these symbols because they lack set values.

In order to determine the values, these symbols are also subjected to various addition, subtraction, multiplication, and division arithmetic operations.

Given:

The length of a rectangle is 6 cm more than its width, w cm.

So, the length = w + 6

The perimeter of the rectangle is 37 cm.

Then, Perimeter of the rectangle = 37

2(l+ w) = 37

2( w+ 6 +w )= 37

2(2w + 6)= 37

4w + 12 = 37

4w = 25

w = 6.25 cm

and, length = w+ 6 = 6 + 6.25 = 12.25 cm

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According to the concept of algebraic expression and arithmetic, the correct answers are A) Number of adults = N - 25. B) Number of adults when N = 124: 124 - 25 = 99

A) Let's denote the number of children as N. Since there are 25 fewer adults than children, the number of adults can be expressed as N - 25.

B) If there are 124 children, we substitute N with 124 in the expression from part A. Thus, the number of adults would be 124 - 25 = 99.

To arrive at these answers, we used the given information that there are "N" children and 25 fewer adults than children. By substituting the value of N, we determined the number of adults in terms of N and then calculated the specific number of adults when N is equal to 124.

Note: The given question is incomplete. The complete question is:

Some adults and children are watching a musical. there are 'N' number of children. There are 25 fewer adults than children.

A) find the number of adults in terms of 'N'.

B) if there are 124 children how many adults are there?​

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Answer: Answers and work are all in the picture that I attached. Hope this helps

Answer:

\(u = x^{7} +8\)     \(du = 7x^{6} dx\)   result is \(\frac{1}{7} \sqrt[4]{u}\)

Step-by-step explanation:

Since 1.2 is positive whereas all other are negative. So, the order will be:

1.2 > -1.6 > - 1.7 > -1.71

Therefore,

-8/5 = -1.6 …............ Number 3

-1.7 …............ Number 2

-30/-25 = 6/5 = 1.2 …............ Number 4

-1.71 .................. Number 1

Since 1.2 is positive whereas all other are negative.

So, the order will be:

1.2 > -1.6 > - 1.7 > -1.71

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Answer:

The graph of function g is the graph of function f shifted 6 units up

Step-by-step explanation:

If you plug in the values, \(g(x) = 2^{x} + 6\). If the 6 was added or subtracted from the x in the exponent, it would shift horizontally (left and right), but adding 6 to f(x) separately moves the graph vertically (up and down). Hope this helps.

Answer:

55

Step-by-step explanation:

\(\displaystyle MOE = z\biggr(\frac{\sigma}{\sqrt{n}}\biggr)\\\\4=1.96\biggr(\frac{15}{\sqrt{n}}\biggr)\\\\4=\frac{29.4}{\sqrt{n}}\\\\\sqrt{n}=\frac{29.4}{4}\\\\\sqrt{n}=7.35\\\\n=54.0225\\\\n\approx55\uparrow\)

Make sure to always round up the required sample size to the nearest integer!