Find the difference

(2/7x-3) - (5/2+1/5y)​

Step-by-step explanation:

the first thing we notice is : there are always 2 "extra" squares (1 added to the bottom left, and 1 added to the top right).

and then we see that we have a "core" of n+1 squares that are added n-1 times.

e.g. for n=2 we get (2+1)(2-1) = 3×1 = 3 squares in the middle.

for n=3 we get (3+1)(3-1) = 4×2 = 8 squares in the middle.

just to verify for n=1 : that would be (1+1)(1-1) = 2×0 = 0. meaning no middle squares, which is correct.

so, the formula for n is

squares(n) = (n+1)(n-1) + 2 = n² - 1 + 2 = n² + 1

The number of squares that it takes to make the nth figure in this pattern will be n² + 1.

The analysis of mathematical representations is algebra, and the handling of those symbols is logic.

PEMDAS rule means for the Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This rule is used to solve the equation in a proper and correct manner.

The growing pattern will be

⇒ (n+1)(n-1) + 2

⇒ n² - 1 + 2

⇒ n² + 1

Where n is the integer number.

More about the Algebra link is given below.

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cosA:-

[tex]\\ \rm\longmapsto \sqrt{1-sin^2A}=\sqrt{1-(1/4)^2}=\sqrt{1-1/16}=\sqrt{15/16}=\dfrac{3\sqrt{5}}{4}[/tex]

Now

[tex]\\ \rm\longmapsto sinA+cos^2A[/tex]

[tex]\\ \rm\longmapsto 1/4+15/16[/tex]

[tex]\\ \rm\longmapsto 4+15/16=19/16[/tex]

Answer:

22.5%

Step-by-step explanation:

Find new values:

124(1−0.25)=93

125(1−0.2)=100

Last Year: Boys 124 & Girls 125

This Year: Boys 93 & Girls 100

Total: Last Year 249 & This Year 193

249(1−r)=193

249(1−r)/249=193/249

1−r=0.7751

−r=−0.2249(Subtracted 1)

r=0.2249(Divided by -1)

Final Answer: 22.5%(Multiply by 100 and round to nearest 10th)

Answer:

5 hours, and 30 minutes ago, which would be 7:15 AM

Step-by-step explanation:

add hours, then minutes, then subtract both times: 12:45 - 5:30 = 7:15

Answer:

100% for the conditions given.

Step-by-step explanation:

P(out) = .34 + .18 + .13= 0.65

This is the probability for going out. The 4th person is the one not going out. We are to assume that he wants to watch Monday Night Football or something like it

So the probability of not going out for 1 person is 0.35

You can justify this in two ways.

Either you can rely on the given (P(stay at home) = 0.35)

or you can take the probability of the 3 given who do go out and subtract it from certainty (or 1)

1 - 0.65 = 0.35

Answer:

24

Step-by-step explanation:

L = library

A = animal shelter

A = 5L

20 = 5L

20 ÷ 5 = 5L ÷ 5

4 = L(L = 4)

4 + 20 = 24

Answer:

[tex]\frac{4}{7}[/tex]

Step-by-step explanation:

The equation for slope is:

[tex]Slope=\frac{y_2-y_1}{x_2-x_1}[/tex]

We can plug in the given points into the equation:

[tex]Slope=\frac{-6-(-2)}{1-8}=\frac{-6+2}{-7}=\frac{-4}{-7}=\frac{4}{7}[/tex]

Answer:

no she won't but my answer is an estimate

Step-by-step explanation:

16 X 118 is like 1900 and 20 percent of 1900 is like 380

1900 add 380 is 2280 not enough money.

Answer:

996

Step-by-step explanation:

Although that's the exact answer

Answer:

55 feet

Step-by-step explanation:

This is a subtraction problem.

You need to find the difference between what Janice has (27feet) and what she would like to have (82feet)

82 - 27

= 55

Janice needs 55 feet of ribbon. This amount along with the 27 feet she already has will give her a total of 82 feet of ribbon.

55 + 27 = 82

1. Observe problem

Degree of three, so

(x-3)(x-1)(x)=

x^3-4x^2+3x

The area of a shape is the amount of space on the shape

The area of the shape is 110 unit square

From the complete question, the composite shape has:

The area of the rectangle is:

Area = 10 * 9 = 90 unit square

The area of the triangle is:

Area = 0.5 *10 * 4 = 20 unit square

So, the area of the figure is:

Total = 90 + 20

Total = 110 unit square

Hence, the area of the shape is 110 unit square

Read more about areas at:-

https://brainly.com/question/24487155

10

Answer:

[tex] - 1(2)( - 5) \\ - 2 \times ( - 5) \\ = 2 \times 5 \\ 10[/tex]

Answer:

10

Step-by-step explanation:

-1(2)(-5)

-1(-10) = 10

[RevyBreeze]

Answer:

Domain: [-2,5)

Range: (2,-2]

Step by step explanation:

a open circle , means a parenthesis. a close Circle means a bracket . the domain is X . The range is y . for the range you start from the top of the graph and go all the way to the bottom of the graph . then for the domain, you go from the beginning of the graph to the end of the graph, side to side. and that's how I got this answer

Answer:

A = ks^2

I hope this helps :D

Answer:

#1= 24.23

#2= 57.91

#3= 35.84

#4= 48.59

Step-by-step explanation:

soh cah toa

sin=opposite/hypotenuse

cos=adjacent/hypotenuse

tan= opposite/adjacent

use inverse sin cos and tan to find angles!

Answer:

Example 1 tan-1(9/20)=24.23°

Example 2 cos-1(17/32)=57.91°

Example 3tan-1(13/18)=35.84°

Example 3 sin-1(21/28)=48.59°

Answer:

B. H(w) gets very small.

Step-by-step explanation:

This should be the answer you're looking for

From the graph of H(w) and w, H(w) gets very small when w gets very large option (B) H(w) gets very small is correct.

It is defined as the function that rapidly increases and the value of the exponential function is always positive. It denotes with exponent y = a^x

where a is a constant and a>1

As we know, It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.

We have a graph shown in the picture.

From the graph:

H(w) represents the vertical axis or y-axis and w represents the horizontal axis or x-axis.

H(w) is decreasing as the w increasing

Thus, from the graph of H(w) and w, H(w) gets very small when w gets very large option (B) H(w) gets very small is correct.

Learn more about the exponential function here:

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Answer:

x = 70

Step-by-step explanation:

The Left base angle is also = x. that's because both angles are opposite = lines

x + x + 40 = 180                     All triangles have 180 degrees.

2x + 40 = 180                        Combine left angles. Subtract 40 from left and right sides.

2x+40 - 40 = 180 - 40           Combine

2x = 140                                 Divide by 2

2x/2 = 140/2

x = 70

Answer:

SA = 280 in²

Step-by-step explanation:

The net comprises:

To calculate the surface area (SA), calculate the area of each rectangle and add them together.

Area of a rectangle = width x length

Therefore, SA of net = 2(5 x 10) + 2(6 x 10) + 2(5 x 6)

⇒ SA = 100 + 120 + 60

⇒ SA = 280 in²

Answer:

9cm

Step-by-step explanation:

a square has 4 equal sides therefore if you divide 36 by 4 you will get the length of 1 side

[tex]\bold{\huge{\green{\underline{ Solution}}}}[/tex]

[tex]\bold{\underline{ Given :- }}[/tex]

[tex]\bold{\underline{ To \: Find :- }}[/tex]

[tex]\bold{\underline{ Let's \: Begin :- }}[/tex]

In the given right angled triangle, we have

Now, By using trigonometric ratios

[tex]\bold{\pink{ Sin Φ = }}{\bold{\pink{\frac{Perpendicular }{Hypotenuse}}}}[/tex]

[tex]\bold{\red{ Cos Φ = }}{\bold{\red{\frac{Base}{Hypotenuse }}}}[/tex]

[tex]\bold{\blue { tan Φ = }}{\bold{\blue{\frac{Perpendicular }{Base }}}}[/tex]

According to the question :-

[tex]\bold{ Cos \: 45° = }{\bold{\frac{2}{m}}}[/tex]

[tex]\bold{ 1/√2= }{\bold{\frac{2}{m}}}[/tex]

[tex]\bold{\red{ m = 2√2 \: units }}[/tex]

Therefore,

Let the unknown angle be x

[tex]\sf{ 45° + x + 90° = 180° }[/tex]

[tex]\sf{ x = 180° - 135 ° }[/tex]

[tex]\sf{ x = 45° }[/tex]

Now,

[tex]\bold{ Cos \: x° = }{\bold{\frac{n}{2√2}}}[/tex]

[tex]\bold{ Cos \: 45° = }{\bold{\frac{n}{2√2}}}[/tex]

[tex]\bold{ 1/√2= }{\bold{\frac{n}{2√2}}}[/tex]

[tex]\bold { n = 2√2/√2 }[/tex]

[tex]\bold{\red{ n = 2\: units }}[/tex]

Thus, The value of m = 2√2 and n = 2

[tex]\sf{\blue{ Hence, \: option \: D \: is \: Correct }}[/tex]

Answer:

d

Step-by-step explanation:

Answer:

n + 6

Step-by-step explanation:

5n - 3 ( n - 2 ) - n

4n - 3 ( n -2 )

4n - 3n - 3 x (2)

4n - 3n - 3 x 2

4n - 3n + 6

n + 6

Answer:

-5, -2/3, 7, 3/4

Step-by-step explanation:

The solutions of S(x) = 0 satisfy one of the equations:

3x^2 + 17x + 10 = 0, x - 7 = 0, 4x - 3 = 0

The latter two are straightforward to solve:

x = 7 and x = 3/4

We now factor 3x^2 + 17x + 10 = 0

Note 10 = 5 * 2, 3 = 3 * 1 and 3 * 5 + 2 - 17.

So, we can factor it as (3x + 2) (x + 5) = 0

Thus, we also have solutions -2/3, -5.

Answer:

-When (2×-5) intersects at ×-axis the value of × will be zero.

=>F(×)=× 0=2×-5

hence,

0,=2×-5

5=2×

=>×=5/2

Step-by-step explanation:

hpe it hlps

Answer:

  a) the x-coordinate changes sign

  b) the y-coordinates are unchanged

  c) this is a reflection across the y-axis

Step-by-step explanation:

Each image point is on the same horizontal line as the original. It is as far from the y-axis as the original, but in the opposite direction. Its x-coordinate has changed sign.

__

The y-coordinate is the same for each image point as for the original. The y-coordinates have not changed.

__

The line of reflection is the perpendicular bisector of the segment joining the original point and its image. In every case, that is the y-axis. The image is a reflection across the y-axis.

Answer:

22

Step-by-step explanation:

I used the distance formula

Answer:

Fourth option

Step-by-step explanation:

Given the following question:

(1, -4), (1, 18)

To find the distance between the two points we need to plot them on a graph and then count how many units are between the two.

On the same y-axis

[tex]4+18=22[/tex]

"22 units" or the fourth option.

Hope this helps.

Answer:

There are 6 men in the dance recital.

Step-by-step explanation:

We have a ratio of 2:5, men to women. If there are 15 female performers we can do a cross multiplication to find the males performers:

Then it will be

[tex]\tt \frac{15}{x} =\frac{5}{2}[/tex]

[tex]\tt 5x=15*2[/tex]

[tex]\tt 5x=30[/tex]

[tex]\tt x=\frac{30}{5}[/tex]

[tex]\tt x=6[/tex]

[tex]\tt Therefore,there~are~6~Men~at~the~dance[/tex]

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