What is meant when we say "like terms" or that we are "combining like terms, and how does this relate to writing expressions in standard form.

Answer:

correct answer is D i think so

Answer:

a)0.135%

b) 36.944%

c) 95.209%

Step-by-step explanation:

We solve the above question using z score formula

z = (x-μ)/σ, where

x is the raw score

μ is the population mean = 2.25 hours

σ is the population standard deviation = 0.75 hours

a) What portion of adults are in front of a computer for less than 0 hours a day, outside of work?

x < 0 hours

Hence,

z = 0 - 2.25/0.75

= -3

Probability value from Z-Table:

P(x<0) = 0.0013499

Converting to Percentage

= 0.0013499 × 100

= 0.13499%

= 0.135%

b) Medical professions recommend spending no more than 2 hours in front of a computer each day. What portion of the population is on their computer more than the recommended amount?

No more than 2 hours

x ≤ 2 hours

x < 2 hours

Hence,

z = 2 - 2.25/0.75

= -0.33333

Probability value from Z-Table:

P(x≤ 2) = 0.36944

Converting to Percentage

= 0.36944 × 100

= 36.944%

c)What portion of adults spend between 1 and 5 hours a day in front of a compute reach day, outside of work?

For x = 1 hour

z = 1 - 2.25/0.75

= -1.66667

P-value from Z-Table:

P(x= 1) = 0.04779

z = 5 - 2.25/0.75

= 3.66667

P-value from Z-Table:

P(x = 5) = 0.99988

Hence,

0.99988 - 0.04779

= 0.95209

Converting to Percentage

= 0.95209 × 100

= 95.209%

Answer:

Answer:

A. minimum at x = -2.

Step-by-step explanation:

Finding the derivative:

f'(x) = 12x.

12x = 0 for a maxim/ minimum.

x = 0.

As the second derivative (12) is positive,  we have a minimum value when x = 0.

So the function has a minimum value  where f(x) = 6(0)^2 -2 = -2.

Answer:

x=45°

Hope this helps

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Answer:

4

Step-by-step explanation:

Answer:7/20 is the answer

Step-by-step explanation:

Answer:

120

Step-by-step explanation:

The prism shown is a triangular prism

The volume of a triangular prism can be found by multiplying the area of the base ( which is a triangle ) by the length of the prism ( which is 10 feet )

First let's find the area of the base.

To find the area of a triangle we use this formula [tex]A=\frac{bh}{2}[/tex]

where b = base length and h = height

The base length is 6ft and the height is 4ft.

Using these dimensions we plug in the values into the formula

[tex]\frac{4*6}{2} \\4*6=24\\\frac{24}{2} =12[/tex]

So the area of the base is 12ft²

Finally to find the volume we multiply the area of the base by the length of the prism

12 * 10 = 120

Hence, the volume of the prism is 120ft³

Answer:

2

Step-by-step explanation:

the cross section of a sphere is a circle

only the cone can have a circle for a cross section

The figure of cone can have the same cross section as a sphere.

Similar figure are zoomed in or zoomed out (or just no zoom) version of each other. They are scaled version of each other, and by scale, we mean that each of their dimension(like height, width etc linear quantities) are constant multiple of their similar figure.

For two similar figures, the pair by pair similar angles of those two similar figures are called corresponding angles. They are of same measurement.

When we slice a given object vertically (perpendicular to the ground level), then the sliced surface is called vertical cross section.

Here we can see that the cross section of a sphere is a circle and only the cone can have a circle for a cross section.

So, the answer is option 2.

Learn more about sphere here:

https://brainly.com/question/13250046

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Answer:

0.64                        

Step-by-step explanation:

Answer:

20 minutes

Step-by-step explanation:

To go 1 mile it takes her 10 min (5 = 1/2 multiply both sides by 2) and to get to school it would take her 2 miles, so it would take 10 min.

Answer:

I think the answer is 20

Step-by-step explanation:

6x3=18+2=20

Answer:

Kim now has 20 pet fish. This is because if you do (6 x 3) since you said Jan had 6 pet fish and Kim had 3 times as many meaning the six times the three. Then, Kim had got 2 more fish meaning she now had 20 fish in total. The (18 + 2).

Step-by-step explanation:

Answer:

68%

In this example, the population mean is 100 and the standard deviation is 15. Based on the 68-95-99.7 Rule, approximately 68% of the individuals in the population have an IQ between 85 and 115.

Step-by-step explanation:

I believe it is about 68%

Answer:

c

Step-by-step explanation:

The correct answer would be option (c) such that,

"If a population is The entire school faculty, a sample of the population could be "math teachers"."

We can observe that In options 2 that is subset of  option 1.

In option A, C, D subset clearly can we seen as option 1

and only in option B we can clearly see that 2 is the subset of 1.

Thus, correct answer would be "If a population is The entire school faculty;, a sample of the population could be "math teachers"."

Learn more about sample space here:

brainly.com/question/30206035

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Answer:

TOO MANY

Step-by-step explanation:

so if people are playing with 2 people at a time then it would go like this...

it would start with 4 billion v.s. 4 billion.

then it would narrow down to 2 billion v.s. 2 billion.

then it would go down to 1 billion v.s. 1 billion.

then i would go down to 500 million v.s. 500 million.

then it would go down to 250 million v.s. 250 million.

Then it would go down to 125 million v.s. 125 million.

then it would go down to 62,500 v.s 62,500.

then it would go down to 31,250 v.s. 31,250.

then it would go down to 15,625 v.s. 15,625.

then it would go down to 7,812 v.s. 7812.

then it would go down to 3,906 v.s. 3906.

then it would go down to 1,953 v.s. 1953.

then it would go down to 976 v.s. 976.

then it would go down to 488 v.s. 488.

then it would go down to 244 v.s. 244.

then it would go down to 122 v.s. 122.

then it would go down to 61 v.s. 61.

then it would go down to 30 v.s. 30.

then it would go down to 15 vs 15.

then it would go down to 7 vs 7.

then it would go down to 3 vs 3.

then it would go down to 1 vs 1.

so it would take 22 matches if the matches were conducted like tournements.

C.) Y = 125000(1.035)x

Step-by-step explanation:

I took the test and got it right

Answer:

c. it is not a solution to either equation

Step-by-step explanation:

let me know if this is incorrect

Answer:

Your answer is y=1/2x+8

Answer:

0,31

Step-by-step explanation:

l'échelle = mesure plan/mesure réelle

37,5/120 ≈ 0,31

Answer:

3rd option

Step-by-step explanation:

tan X = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{YZ}{XZ}[/tex] = [tex]\frac{12}{5}[/tex]

Answer:

Step-by-step explanation:

P=a+b+c

Right scalene triangle.

Sides: a = 21   b = 8   c = 22.472

Area: T = 84

Perimeter: p = 51.472

Semiperimeter: s = 25.736

Angle ∠ A = α = 69.146° = 69°8'44″ = 1.207 rad

Angle ∠ B = β = 20.854° = 20°51'16″ = 0.364 rad

Angle ∠ C = γ = 90° = 1.571 rad

Height: ha = 8

Height: hb = 21

Height: hc = 7.476

Median: ma = 13.2

Median: mb = 21.378

Median: mc = 11.236

Inradius: r = 3.264

Circumradius: R = 11.236

Vertex coordinates: A[22.472; 0] B[0; 0] C[19.624; 7.476]

Centroid: CG[14.032; 2.492]

Coordinates of the circumscribed circle: U[11.236; -0]

Coordinates of the inscribed circle: I[17.736; 3.264]

Exterior (or external, outer) angles of the triangle:

∠ A' = α' = 110.854° = 110°51'16″ = 1.207 rad

∠ B' = β' = 159.146° = 159°8'44″ = 0.364 rad

∠ C' = γ' = 90° = 1.571 rad

Answer:

Step-by-step explanation:

5²+10²=25+100=125

13²=169

so 5²+10²≠13²

so it is not a right angled triangle.

Answer:

no because a right angle has all sides equal

Answer:

65⁰

Step-by-step explanation:

When light comes into contact with a surface, the angle of reflection equals the angle of incidence.

Answer:

the corect answer for this question is

(4,3-)

Answer:

A

Step-by-step explanation:

the line going horizontal(left to right), is the y line

the line going vertically (up and down), is the x line

now that we know where the x and the y lines are at, now we apply it to the format, (x,y)

where the y and x line meet is the origin (0,0), going left or down make the number a negative. up and right make the number positive  

Answer: D

Step-by-step explanation:

Answer:

B

Both the domain and range change.

Both the range and domain stay the same.

The domain stays the same, but the range changes.

The range stays the same, but the domain changes.

Step-by-step explanation:

Answer:

D. 40

Step-by-step explanation:

You will use a volume formula for this. The volume of a rectangular prism is:

[tex]V=lwh[/tex]

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So:

10 × 2 × 2 = 40

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Have a good day :)

Answer:

y = -1/2 = -0.500

Step-by-step explanation:

your welcome have a good day :)

stay safe

stay hydrated

wear a mask

┐(^▂ ^ ；)┌

Answer:

1,800.96 Square Yards I think? If I'm wrong I'm sorry :(

Step-by-step explanation:

Answer:

Sorry I need the points but the person above me has the right answer. Sorry again.

Answer:

A

Step-by-step explanation:

In this question only values of x are changed, so graph is shifted 7 units to the left