What is the volume of a sphere with a diameter of 4.9 cm, rounded to the nearest tenth of a cubic centimeter?

Answer:

x=4 and x=0

Step-by-step explanation:

|x-2|=2

x-2=2 and

x-2= -2

x=4 and

x=0

Answer: X = |4|

|4-2|+10=12

Answer:

a is greater or = to 3

Step-by-step explanation:

Also can I please have Brainliest??

Only if I'm right of course...

It is not possible to construct a triangle whose sides are 3 cm 4 cm and 7 cm because the sum of two sides(3 cm and 4 cm) are equal to the third sides(7 cm). The equal sides can not form a triangle.

In the given question, we have to check that it is possible to construct a triangle whose sides are 3 cm 4 cm and 7 cm.

To check whether the given sides can make a triangle or not, we have to check that the sum of two sides always grater than the third side.

To check this we firstly add the 3 and 4

3 + 4 = 7

7 = 7

Now we add 3 and 7

3 + 7 > 4

10 > 4

Now we add 4 and 7

7 + 4 > 3

11 > 3

It is not possible to construct a triangle whose sides are 3 cm 4 cm and 7 cm because the sum of two sides(3 cm and 4 cm) are equal to the third sides(7 cm). The equal sides can not form a triangle.

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The complete question is:

Can you form a triangle using lengths 3cm 4 cm and 7 cm?

H0: p1 ≥ p2 (Null hypothesis: Proportion of ADHD-diagnosed students in School A is equal to or greater than in School B)

Null Hypothesis: The proportion of students diagnosed with ADHD in School A is equal to or greater than the proportion of students diagnosed with ADHD in School B.

Symbolically, the null hypothesis can be stated as:

H0: p1 ≥ p2

Where:

H0: Null Hypothesis

p1: Proportion of students diagnosed with ADHD in School A

p2: Proportion of students diagnosed with ADHD in School B

In other words, the null hypothesis assumes that there is no significant difference or that School A may have an equal or higher proportion of students diagnosed with ADHD compared to School B.

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Answer:

i think it is d

Step-by-step explanation:

Answer:

2 and 5

Step-by-step explanation:

10x + 2y = 30

x = 2

y = 5

10(2)+2(5) = 30

20+10 = 30

30=30

-Gage Millar, Algebra 2 tutor

Answer:

True

Step-by-step explanation:

When displaying any sort of data, it is important to make the table or chart as easy to understand and read as possible without compromising the data. In this case, it is simpler to understand the pie chart if we use as few slices as possible that still makes sense for displaying the data set.

The central angle of a circle when you know the radius and arc length, you can use the formula:

Central angle (in radians) = Arc length / Radius

To find the central angle of a circle when you know the radius and arc length, you can use the formula:

Central angle (in radians) = Arc length / Radius

If you want the central angle in degrees, you can convert it using the fact that there are 2π radians in a full circle (360 degrees):

Central angle (in degrees) = (Arc length / Radius) * (180 / π)

Make sure to use consistent units for the arc length and radius, such as meters or centimeters, to obtain accurate results.

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Answer:

Step-by-step explanation

B<-35

Answer: 30, 15 cm

Step-by-step explanation:

Given

The length of the rectangle is twice its breadth

The area of the rectangle is \(450\ cm^2\)

Suppose the breadth is x

So, the length is 2x

The area can be written as

\(\Rightarrow 2x\times x=450\\\\\Rightarrow x^2=225\\\\\Rightarrow x=15\ cm\)

breadth is 15 cm, length is 30 cm

Answer:

14

Step-by-step explanation:

Answer:

The linear equation is y = 450 - 30 x, where y is the number of pages

Lourdes has left to read after x days

Step-by-step explanation:

Each day, Lourdes reads 30 pages of a 450-page book

- We need to write a linear equation to represent the number of pages

 Lourdes has left to read after x days

∵ Lourdes reads 30 pages each day

∵ Lourdes will read for x days

∴ The number of pages Lourdes will read in x day = 30 x

- The left pages will be the difference between the total pages of the

 book and the pages Lourdes read

∵ The book has 450 pages

∵ Loured will read 30 x in x days

∴ The number of pages left = 450 - 30 x

- Assume that y represents the number of pages Lourdes has left

 to read after x days

∴ y = 450 - 30 x

The linear equation is y = 450 - 30 x, where y is the number of

pages Lourdes has left to read after x days

The number of years for which the money was invested is 5.0 years

From the question, we are to determine how long (in years) the money was invested

From the given information,

Lina invested $7,800 at a simple interest rate of 4.35%

and

She earned $1,696.50 in interest

From the formula for simple interest

I = PRT

Where I is the simple interest

P is the principal

R is the rate

and T is the time in years

From the given information,

I = $1,696.50

P = $7,800

R = 4.35% = 0.0435

Thus,

1696.50 = 7800 × 0.0435 × T

1696.50 = 339.3 × T

T = 1696.50/339.3

T = 5.0 years

Hence, the money was invested for 5.0 years

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Answer:

Finding the dilation's center point is the first step in determining the scale factor. Next, we measure the distances between the center point and various points on the preimage and the image. We may determine the scale factor by dividing these distances by 2.

Step-by-step explanation:

The unit rate at which Caleb types is 20 words per minute.

The unit rate is the average speed at which an activity is done. The unit rate is the total words typed by Caleb per minute. It is calculated by dividing the total words typed by the total time.

Unit rate = total words / total time

100 / 5 = 20 words per minute

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Answer:

18. Commutative property of addition

19. Distributive property

20. Associative property of addition

Step-by-step explanation:

The image showing the locus points equidistant from X, Y, and Z is B. See the attached image.

If the distances between a point and each object in the set are equal, the point is said to be equidistant from the set.

When a point is equidistant from two other points, it is at the same distance from both of them. The distance between two points may be computed using the distance formula and the coordinates of the two points.

In geometry, a locus is a set of points that satisfy a specific condition or circumstance for a form or figure. The locus is pluralized as loci. The region is the location of the locus. The term locus comes from the word location.

Thus, the point that is equidistant from X, Y, and Z is B.

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Answer:

B. 1

Step-by-step explanation:

(2x/2x+1 ) + (1/2x+1) = (2x+1) / (2x+1) = 1

Check the picture below.

Step-by-step explanation:

now you should be able to dive these things yourself.

A no

(1/4)v = 4

4×(1/4)v = 4×4

v = 16

this is not v = 4

B no

n + 4 = 25

n + 4 - 4 = 25 - 4

n = 21

this is not n = 17

C yes

2z = 28

2z/2 = 28/2

z = 14

Answer:

Option A and Option D have the same solution as 2.3p – 10.1 = 6.5p – 4 – 0.01p. The equation can be rewritten as 2.3p – 14.1 = 6.4p – 4 by combining the constants and subtracting 0.01p from both sides.

Therefore, the compound interest of the annuity due of BD 400 paid each 4 months for 6.2 years at a nominal rate of 3% per annum is BD 40,652.17.

Compound interest of an annuity due can be calculated using the formula:A = R * [(1 + i)ⁿ - 1] / i * (1 + i)

whereA = future value of the annuity dueR = regular paymenti = interest raten = number of payments First, we need to calculate the effective rate of interest per period since the nominal rate is given per annum. The effective rate of interest per period is calculated as

:(1 + i/n)^n - 1 = 3/1003/100 = (1 + i/4)^4 - 1

(1 + i/4)^4 = 1.0075i/4 = (1.0075)^(1/4) - 1i = 0.0303So,

the effective rate of interest per 4 months is 3.03%.Next, we can substitute the given values in the formula:

A = BD 400 * [(1 + 0.0303)^(6.2 * 3) - 1] / 0.0303 * (1 + 0.0303)A = BD 400 * [4.227 - 1] / 0.0303 * 1.0303A = BD 400 * 101.63A = BD 40,652.17

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Answer:

2.88x10^9 is the answer

On solving the provided question, we can say that - y proportional to  as the cube of s, y = ks3, then  \(y = 1 * 53 = 125\)

If two numbers are directly proportional, then as one quantity grows by a specific percentage, so does the other quantity by the same percentage. As an illustration, as gas costs rise, the price of food may also increase. If the ratio of two values x to y never changes, then x and y are said to be directly proportional to one another. example: Let's say you spend Rs. 50 on two pens. 4 pens cost 100 rupees each. If the ratio of two numbers, x and y, is greater than 1, then the two values The value of y1 is constant.

Since y proportional to  as the cube of s, y = ks3.

\(8 = k*23 = > k = 1\)

\(Then y = 1 * 53 = 125\)

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The correct answer is: Jeff will use 8 oz of powder and 24 cups of water to make 8 boxes of gelatin.

To determine the amount of powder and water Jeff will use to make 8 boxes of gelatin, we need to find the pattern in the given table. By examining the table, we can see that for every 3 boxes of gelatin powder (oz), 9 cups of water are used. This implies that the ratio of powder to water is 3:9, which can be simplified to 1:3.

Since Jeff wants to make 8 boxes of gelatin, we can multiply the ratio by 8 to find the corresponding amounts of powder and water.

For the powder, we have:

1 part (powder) * 8 (number of boxes) = 8 parts of powder.

Therefore, Jeff will use 8 oz of powder.

For the water, we have:

3 parts (water) * 8 (number of boxes) = 24 parts of water.

Therefore, Jeff will use 24 cups of water.

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The sequence an​ = 3n/ 3n+10,n≥1 is an increasing sequence. The answer is (b) Increasing.

To determine the monotonicity of the sequence an​ = 3n/ 3n+10,n≥1, we need to analyze whether the terms in the sequence are increasing or decreasing.

To do this, we can take the first derivative of the sequence with respect to n:

d(an)/dn = (9n+30)/(3n+10)^2

If the first derivative is positive for all values of n, then the sequence is increasing. If the first derivative is negative for all values of n, then the sequence is decreasing. If the first derivative changes sign at some point, then the sequence is non-monotonic.

Simplifying the first derivative, we get:

d(an)/dn = 9(1+3/n)/(1+10/n)^2

Since (1+3/n) and (1+10/n) are always positive for n≥1, the sign of the first derivative is determined solely by the sign of 9. Since 9 is positive, the first derivative is positive for all values of n.

Therefore, the sequence an​ = 3n/ 3n+10,n≥1 is an increasing sequence. The answer is (b) Increasing.

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The monotonicity of the sequence an = 3n / (3n + 10), n≥1 is  Increasing.(B)

To determine the monotonicity, we'll compare the terms an and an+1 for n≥1. If an+1 > an, the sequence is increasing; if an+1 < an, it's decreasing; otherwise, it's non-monotonic.

Consider the terms:
an = 3n / (3n + 10)
an+1 = 3(n+1) / (3(n+1) + 10)

We want to show that an+1 > an. To do this, we'll first find a common denominator:

an = (3n)(3n + 13) / [(3n + 10)(3n + 13)]
an+1 = (3n + 3)(3n + 10) / [(3n + 10)(3n + 13)]

Comparing the numerators:
(3n + 3)(3n + 10) > (3n)(3n + 13)

Expanding both sides:
9n² + 30n + 30 > 9n² + 39n

Subtract 9n² from both sides and simplify:
30n + 30 > 39n
9n > 30
n > 10/3

Since n≥1, this inequality holds for all n, so the sequence is increasing.(B)

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The coefficients obtained by the student may be less efficient and have larger standard errors compared to the professor's regression.

If the student enters each observation twice, resulting in a sample size of 100 instead of the original 50, the assumption of independent observations is violated in Ordinary Least Squares (OLS) regression. The OLS assumption assumes that the observations are independent, meaning that the value of one observation does not depend on the value of another observation.

In this case, the student's dataset contains repeated observations, which introduces dependence between observations. This violation of the independence assumption can lead to biased and inconsistent parameter estimates in the regression analysis.

Regarding the slope coefficients, if the student runs a regression using the duplicated data, the estimated coefficients may be different from the professor's regression. The duplication of observations inflates the sample size, potentially affecting the precision and accuracy of the estimates.

However, the direction and overall relationship between the variables may still be captured by the student's regression, although the estimates may not be as reliable.

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Answer:

D

Step-by-step explanation:

Given

- 3 ÷ - \(\frac{2}{5}\)

Leave the first number, change division to multiplication and turn the fraction upside down, that is

= - 3 × - \(\frac{5}{2}\)

= \(\frac{3(5)}{2}\)

= \(\frac{15}{2}\)

= 7 \(\frac{1}{2}\) → D

Answer:

P(2,3) thats the answer ;)

65 min by riding her bike

x min by boarding a bus

since the time taken to get to the dentist with a bus is 5min shorter than twice the time taken with a bike, it can be written as

(2x) - 5 = 65

2x = 65 + 5

2x = 70

x = 35 min. (A)