simplify (3x^2-5x+9) + (7x^2 + 8x - 15)

Answer: Equation: y=−3x+12

Explanation:

The x-intercept means y=0andx=4

Use the equation:

0=−3⋅4+b

Add 3⋅4=12 to both sides:

12=12

−12

=b→b=12

plz mark brainleist

Answer:

a. 18

b. 17/36

d. 157.5615

e. 19.8

Step-by-step explanation:

Hope this helped!

Answer:

a. 18 b. 15/64 c. 122 2/9 d. 157.5615 e. 19.8

Step-by-step explanation:

a.

b. multiply across, so 1 * 15 = 15, 4*16=64, 15/64 can't be reduced, so done

c. 13 3/4 * 7 8/9, you must convert to improper fractions to multiply

4*13+3 = 55 so the first part is 55/4, 7*9+8=80 so the second is 80/9

55/4 * 80/9 = (55*80) / (4*9) = 4400 / 36, both are divisible by 4 so can be reduced to 1100/9 which cannot be reduced any further, 1100 + 9 = 122 R 2 so

1100/9 = 122 2/9

d. used calculator

e. 33% of 60 = (33//100)*(60/1) = (33*60) / (100*1) = 1980 / 100 = 19.8

Answer:

7

Step-by-step explanation:

The greatest common factor is found by listing the factors of both numbers, then finding what the biggest number is that is common.

Hope I helped!! :)

Brainliest?

Have a good night/day/afternoon!!!

The greatest common factor of 14 and 49 is 7.

To find the greatest common factor (GCF) of 14 and 49, we can determine the factors of both numbers and identify their largest common factor.

The factors of 14 are 1, 2, 7, and 14.

The factors of 49 are 1, 7, and 49.

The common factors of 14 and 49 are 1 and 7.

Since we are looking for the greatest common factor, we can conclude that the GCF of 14 and 49 is 7.

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Answer:

c<=25

Step-by-step explanation:

-1/5c>=-5

*-1         *-1

1/5<=5

*5      *5

c<=25

lets check

-1/5(25) +1>=-4

-5+1>=-4

-4>=-4

its correct :D

The specific range depends on the material properties and the energy levels involved.

The minimum and maximum frequencies for the acoustic and optic modes depend on the specific system or material under consideration. However, I can provide some general information.

Acoustic Mode:

The acoustic mode refers to the propagation of sound waves or vibrations in a material. In a solid, the acoustic mode can have different types, such as longitudinal and transverse modes.

The minimum frequency for the acoustic mode is typically determined by the size and physical properties of the material. In general, it can be close to zero for macroscopic objects or materials with low elasticity.

The maximum frequency for the acoustic mode depends on factors such as the speed of sound in the material and the characteristic dimensions of the system. It can range from a few kilohertz to several gigahertz.

Optic Mode:

The optic mode is related to the interaction of light with a material. It typically refers to the vibrations of charged particles (such as electrons) in a solid or the oscillations of electric or magnetic fields associated with photons.

The minimum frequency for the optic mode is typically determined by the energy gap between electronic states in the material. For example, in a semiconductor, the minimum frequency is usually in the infrared range.

The maximum frequency for the optic mode is not strictly defined, as it can extend into the terahertz, infrared, visible, ultraviolet, X-ray, and even gamma-ray regions. The specific range depends on the material properties and the energy levels involved.

It's important to note that these frequency ranges are general guidelines and can vary depending on the specific system or material being studied.

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Answer:

x and y can be any two numbers greater than zero such that y is also greater than x

D.no more than 45

C.50 miles per hour

Step-by-step explanation:

Let the two numbers be such that x< y because we have been given y/x>1 and x/y< 1 .

Suppose we take y= 9 and x= 3 then

9/3 > 1

3>1

Also

3/9 < 1

1/3 < 1

x and y can be any two numbers greater than zero such that y is also greater than x

2. Total weight that can be carried is 3000 pounds.

The big machine is 300 pounds. The weight that the truck can carry beside the big machine is 3000-300= 2700 pounds.

The smaller machines weigh 60 pounds

The number of smaller machines that can be carried is 2700 ÷ 60= 45 other than the big machine.

3. Total distance = Speed * time

                           = 48 * (40/60) = 32 miles

New distance = 32+ 8= 40 miles

New time = 48 minutes

Speed = distance / time = 40/ 48/60=  50 miles per hour

Answer:

12+4- 4-12-20-x.

Step-by-step explanation:

The sum of the first 14 terms of the series will be - 560.

An arithmetic sequence is the sequence of numbers where each consecutive numbers have same difference.

Given that;

The series is,

⇒ 12, 4, - 4, - 12, - 20,

Now,

Since, The series is,

⇒ 12, 4, - 4, - 12, - 20,

Clearly, The common difference = 4 - 12 = - 8

                                                  = - 4 - 4 = - 8

Thus, The series is in Arithmetic sequence.

So, The 14th term is find as;

⇒ Sum of the 14th term = 14/2 [2 × 12 + (14 - 1) (- 8)}

                                     = 7 [24 - 8 × 13}

                                     = 7 [24 - 104]

                                     = 7 × - 80

                                     = - 560

Therefore, The sum of the first 14 terms of the series = - 560

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Answer:

Both numbers = 27

Step-by-step explanation:

( x + x + 49 + 25 + 42)/ 5 = 34          Multiply both sides by 5

(2x + 49 + 25 + 42) = 34*5 = 170     Combine the left

(2x + 116) = 170                                 Remove the brackets.

2x + 116 = 170                                   Subtract 116 from both sides

2x = 170 - 116

2x = 54                                             Divide by 2

x = 54/2

x = 27

Check

27 + 27 + 49 + 25 + 42

170 / 5 = 34

It does check out.

27 is right.

Gradients are an important concept in many fields of science and engineering, providing a quantitative measure of how a particular variable changes over space or time.

A gradient is a term used in mathematics and physics to describe the change in a variable over a certain distance. It refers to the rate at which a variable changes as you move from one point to another. In the context of temperature, for example, a temperature gradient would describe how the temperature changes as you move from one location to another. This can help in understanding the spatial distribution of temperature and other variables in various contexts, such as weather forecasting, climate studies, or even engineering applications.

A gradient is a measure of change in a variable, like temperature or pressure, over a specified distance, providing valuable information about the spatial distribution and variations in these variables.

A gradient can be positive, indicating an increase in the variable as you move in a particular direction, or negative, indicating a decrease. In the case of temperature, a positive gradient would mean that the temperature is increasing as you move in a particular direction, while a negative gradient would mean that the temperature is decreasing.

One important application of gradients is in the study of heat transfer. The rate at which heat flows from one location to another is proportional to the temperature gradient between the two locations. In other words, the greater the difference in temperature between two points, the faster heat will flow between them.

Overall, gradients are an important concept in many fields of science and engineering, providing a quantitative measure of how a particular variable changes over space or time.

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Answer:

The answer is Actually A

Step-by-step explanation:

Children have a much greater chance of having a side effect than adults. Then the correct option is A.

Its basic premise is that something will almost certainly happen. The percentage of favorable events to the total number of occurrences.

A medical company tested a new drug on 100 people for possible side

effects. This table shows the results.

                   Side effects               No side effects           Total

Adults                 6                                   44                        50

Children            21                                   29                        50

Total                  27                                  73                        100

Compare the probability that an adult has side effects with the probability that a child has side effects.

The probability that an adult has side effects will be

P(side effects adult) = 0.12

The probability that children has side effects will be

P(side effects children) = 0.42

Children have a much greater chance of having a side effect than adults.

Then the correct option is A.

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Answer:

3+28-5 --> 31-5 --> 26

Step-by-step explanation:

Answer:

I think the answer is letter C

Step-by-step explanation:

the line given slope = x coefficient = -5/2

Perpendicular slopes must be opposite reciprocals of each other:  m1 * m2 = –1

new slope = 2/5

line equation formula = y = mx+ b

m = slope

y= 2/5x + b

from the point given (-6,0)

x = -6

y = 0

0= -12/5 + b

b = +12/5

line equation =

\(y = \frac{2}{5} x + \frac{12}{5} \)

Answer:  B (the second graph)

Step-by-step explanation:

Inverse is when you swap the x's and y's.

The graph has an asymptote at y = 4

so the inverse graph will have an asymptote at x = 4

a) Asymptote: y = 0

b) Asymptote: x = 4      → This is the correct graph!

c) Asymptote: y = -4

d) Asymptote: y = -4   this is the exact same graph as c

Answer:

B. 3 pages are edited every five minutes

D. 6/10 of a page is edited per minute

Step by step:

Three pages are done at an interval of five minutes.

Six tenths of a page is done every minute

0.6 * 5 = 3 per five minutes

The other statements are false.

12/3 = 4, four done every minute, really?

5 pages are edited every three minutes.

This would disprove statement B.

And does not align with the graph.

Hope this helps.

Answer:

B. 3 pages are edited every five minutes

D. 6/10 of a page is edited per minute

Step-by-step explanation:

The likelihood that at least 150 people will collaborate and react in a fresh sample of 400 telephone numbers is 0.9953.

The probability informs us of the likelihood that an event will occur. It is necessary for the likelihood to fall between 0 and 1. The likelihood of success is 1, whereas the probability of failure is 0.

Given, that the market research  company has a history of having a 44% response rate for its telephone surveys.

Therefore, p=44%=0.44=μ

n=400

p=150/400

p=0.375

The standard deviation is then equal to,

σ=√(p(1-p))/n

σ=√(0.44(1-0.44))/400

σ=√(0.44×0.56)/400

σ=0.025

Using the z-table, the values are as follows:

z=(p-μ)/σ

z=(0.375-0.44)/0.025

z=-2.6

p(p>0.375)

=p(z>-2.6)

=1-p(z<-2.6)

=1-0.0047

=0.9953

=99.53%

Therefore, the likelihood that at least 150 people will participate and provide information in a new sample of 400 telephone numbers

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Sarah's speed in kilometers per minute is 0.6 kilometers per minute.

To convert the speed from miles per hour to kilometers per minute, we need to perform the following conversions:

1 mile = 1.60934 kilometers

1 hour = 60 minutes

We will convert miles per hour to kilometers per hour:

= 22.7 miles/hour * 1.60934 kilometers/mile

= 36.525918 kilometers/hour

We will convert kilometers per hour to kilometers per minute:

= 36.525918 kilometers/hour / 60 minutes/hour

= 0.60876697

= 0.6 kilometers/minute.

Full question:

Sarah is riding her bicycle at a speed of 22.7 miles per hour. What is Sarah's approximate speed, in kilometers per minute? justify your answer

(1) 0.2

(2) 0.6

(3) 36.5

(4) 36.6​.

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Answer:

Step-by-step explanation:

A linear function is a line which, in slope-intercept form, follows

y = mx + b,

where m is the slope and b is the y-intercept.

The only one that follows that form is B. B can be rewritten as

\(y=\frac{1}{3}x+2\)

and in that form we see that the slope value is 1/3 and the y-intercept is 2. The choice is B.

A is a radical function moved up from its originating spot; C is an inverse function moved down 4 units from its originating spot with a vertical asymptote at x = 0; and D is a cubic moved down 10 units from its originating spot.

B is the one you want.

Answer:

96

Step-by-step explanation:

--> (2^6 * 81 * 48)/2^5 * 3^4

--> (64 * 3^4 * 48 )/ (32 * 3^4) .........3^4 cancels out

--> 3072/32

--> 96

Refer to the attachment please!

Answer:

A)  False

B)  True

Step-by-step explanation:

For A) First let's do x/11 = 15. If you solved it by now, you will know that the answer is 0.7333333. So now you just do 11x15. Because the answer is different then the answer we got when doing the division, the answer for A is false

For B) B is definitely true because equation are any mathematical sentences that have an equation symbol. So it's like saying 8x3=24 and 6x4=24. These two equations end up with the same answer so B is true.

I hope this helped you find out the rest :)

Answer:

9 x^2 + 24 x + 16 or (3 x + 4)^2

Step-by-step explanation:

Simplify the following:

(3 x + 4) (3 x + 4)

(3 x + 4) (3 x + 4) = (3 x + 4)^2:

Answer: |

| (3 x + 4)^2

or

Expand the following:

(3 x + 4) (3 x + 4)

(3 x + 4) (3 x + 4) = (3 x + 4)^2:

(3 x + 4)^2

(3 x + 4) (3 x + 4) = (3 x) (3 x) + (3 x) (4) + (4) (3 x) + (4) (4):

3 3 x x + 4 3 x + 4 3 x + 4 4

3 x×3 x = 3×3 x^2:

9 x^2 + 4 3 x + 4 3 x + 4 4

3×3 = 9:

9 x^2 + 4 3 x + 4 3 x + 4 4

4×3 = 12:

9 x^2 + 4 3 x + 12 x + 4 4

4×3 = 12:

9 x^2 + 12 x + 12 x + 4 4

4×4 = 16:

9 x^2 + 12 x + 12 x + 16

Grouping like terms, 9 x^2 + 12 x + 12 x + 16 = 9 x^2 + (12 x + 12 x) + 16:

9 x^2 + (12 x + 12 x) + 16

12 x + 12 x = 24 x:

Answer: |

| 9 x^2 + 24 x + 16

Answer:

80

Step-by-step explanation:

so 77 but you round it to 80 (sorry i dont know how to explain it that well but its 80)

Answer:

12 pieces can be cut

Step-by-step explanation:

5/8 yard per piece

5/8 = 0.625 yard

We have 7.5 yards total

7.5 / 0.625 = 12

Answer:

y = x + 6

Step-by-step explanation:

Given:

Passes through (-4, 2)

m = 1

Slope-intercept:

y - y1 = m(x - x1)

y - 2 = 1(x + 4)

y - 2 = x + 4

y = x + 6

\(▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪\)

The required number is :

\( \large \boxed{ \mathfrak{Explanation}}\)

Let the number be represented as " x "

from the given statement we can infer that :

So, let's find the value of " x " from the given equation ~

Answer:

Let the required original number be " x "

According to the given problem,

\(7(x + 3) = 28 \\ (x + 3) = \frac{28}{7} \\ (x + 3) = 4 \\ x =(4 - 3) \\ \boxed{x = 1}\)

Answer:

-7

Step-by-step explanation:

Answer:

-7

Step-by-step explanation:

You use your common sense

To apply the \( x \) shearing transformation with a parameter of 2 units, we need to modify the \( x \)-coordinate of each point by adding a value proportional to its \( y \)-coordinate.

Shearing is a geometric transformation that distorts the shape of an object along a particular axis. In this case, we are applying \( x \) shearing, which means we want to modify the \( x \)-coordinates of the given rectangle/square.

The shearing parameter determines the amount of distortion applied. In this case, the shearing parameter towards the \( x \)-direction is 2 units. To achieve this, we add a value proportional to the \( y \)-coordinate to the \( x \)-coordinate of each point.

Considering the given coordinates of the rectangle/square as \( (0,0), (0,2), (2,0), (2,2) \), we apply the \( x \) shearing transformation by modifying the \( x \)-coordinate of each point. For example, for the point \( (0,0) \), the new \( x \)-coordinate would be \( 0 + 2 \times 0 = 0 \). Similarly, for the point \( (0,2) \), the new \( x \)-coordinate would be \( 0 + 2 \times 2 = 4 \). By applying this transformation to all the points, we obtain the coordinates of the sheared rectangle/square.

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