Please help me answer number 2.

Answer:

6x^2+17x+9

Step-by-step explanation:

you have to subtract the area of the white rectangle from the area of the entire rectangle

to find the area of the inner rectangle do (2x-3)*(x+1)=2x^2-3x+2x-3=2x^2-x-3

to find the area of the entire rectangle do (4x+6)*(2x+1)=8x^2+12x+4x+6=8x^2+16x+6

(8x^2+16x+6)-(2x^2-x-3)=8x^2+16x+6-2x^2+x+3=6x^2+17x+9

Answer:

78.5398

Step-by-step explanation:

Area of a circle:

a=[tex]\pi[/tex]r²

Radius is 10.

a=[tex]\pi[/tex]10²

a=[tex]\pi[/tex]100

a=314.15926

90° is one quarter of the circle, so multiply it by 0.25.

314.15926x0.25=78.5398

I don't know how many places the directions want it rounded to.  If it said to use 3.14 for pi, the answer would just be 78.5.

Answer:

2x+y=15x+y=10

Consider the first equation. Subtract 15x from both sides.

2x+y−15x=y

Combine 2x and −15x to get −13x.

−13x+y=y

Subtract y from both sides.

−13x+y−y=0

Combine y and −y to get 0.

−13x=0

Divide both sides by −13. Zero divided by any non-zero number gives zero.

x=0

Consider the second equation. Insert the known values of variables into the equation.

15×0+y=10

Multiply 15 and 0 to get 0.

0+y=10

Anything plus zero gives itself.

Answer:

D. x^2 +14x + 40

Step-by-step explanation:

(x+4)(x+10)

x^2+10x+4x+40

x^2+14x+40

Answer:

d) x^2+14x+40

Step-by-step explanation:

You gotta multiply (x + 4)(x + 10)

Answer:

9.8  miles

Step-by-step explanation:

14/5= 2.8mph

2.8*3.5= 9.8 miles in 3.5 hours

Answer: No, the answer is 29, this is false.

Step-by-step explanation: 63-x=34

subtract 63 from both sides

34-63= -29

-x=-29

divide both sides by the negative and you get 29

plug in 29 for x, 63-29=34

9514 1404 393

Answer:

  e ≈ 11.0

Step-by-step explanation:

The law of cosines tells you ...

  e² = d² +f² -2df·cos(E)

  e² = 196 +81 -252cos(52°) ≈ 121.853

  e ≈ √121.853 ≈ 11.04

Answer:

Step-by-step explanation:

512 sq. ft.

Answer:

512

Step-by-step explanation:

To start off with you can take the area of the the whole rectangle with the boxes inclosed to get (32+8) times (8+8) to get

40x16= 640ft

From their, find the areas of the two boxes inclosed in the rectangle

b1= 8x8= 64ft

b2= 8x8= 64ft

then you can subtract the two boxes areas from the larger rectangles area to get your answer of

640-64-64= 512ft

Answer:

Step-by-step explanation:

sin(14.629°) = cos(90°-14.629°) = cos(75.371°)

i might have read this problem wrong since i didnt get a clear understanding because of the wording of this problem but i will do the best i can!

step-by-step explanation:

first step is to make a table! and ill just make one on here so you can get a better understanding on this problem :)

----------------------------------

| boxes sold (b) | money collected (m) |

----------------------------------

|    1    |          1.50           |

----------------------------------

|    2    |          3           |

----------------------------------

|    3    |          4.50            |

----------------------------------

|    4    |          6           |

----------------------------------

|   5    |          7.50           |

----------------------------------

|   6    |          9           |

----------------------------------

|   7    |          10.50           |

----------------------------------

|   8    |          12           |

----------------------------------

(b * 1.50) = m

the independent variable = boxes sold (b)

the dependent variable = money collected (m)

hope this helps you and please tell me if i did something wrong or if you need extra help understanding this problem! :)

I can't see pictures, but I'm going to solve the inequality and hope it helps.

2x+3>-9

   -3   -3

2x>-12

/2    /2

x>-6

To graph this, you need to convert this to slope form.

x>-6/1

-6 is the rise, and 1 is the run. That means that when you start at the origin, (0,0), you go down 6 units, because of the negative, and go right 1 unit. Repeat until you have maybe about 3 points, or until you can make a line. Then because the inequality has >, you shade to the right.

---

hope it helps

sorry if it doesn't

Answer: 12x^2+4

Step-by-step explanation:

Answer:

1.70

8.40

130.200

7.120

6.60

142.30

Step-by-step explanation:

The decimal numeral system is the standard system for denoting integer and non-integer numbers.

Decimal is a point which denotes integer and non-integer numbers (mah own answer)

Answer:

50

Step-by-step explanation:

Answer:

NOT found in obtuse triangles

Step-by-step explanation:

you only talk about hypotenuse, adjacent, and opposite in right triangle

Answer:

21 + 3r

Step-by-step explanation:

(7 + r) 3 =

(7) x 3 + (r x 3) =

21 + 3r

Hope that helps!

Answer:

15.1

Step-by-step explanation:

deltamath

Answer:

1.5

Step-by-step explanation:

Answer: A=450

Step-by-step explanation:

Answer:

Hiya!!

12m * 8m = 96m

Step-by-step explanation:

Answer:

3/10

Step-by-step explanation:

............iam not sure

The required ratio of the unshaded square to the shaded square is 7 : 3.

Given that,
To determine the ratio of the number of unshaded squares to the number of shaded squares.​

The ratio can be defined as the proportion of the fraction of one quantity towards others. e.g.- water in milk.

Here,
Number of shaded squares = 3
number of unshaded squares = 7
Required ratio = 7 / 3 = 7 : 3

Thus, the required ratio of the unshaded square to the shaded square is 7 : 3.

Learn more about ratios here:

brainly.com/question/13419413

#SPJ2

Answer:

66

Step-by-step explanation:

first you find the area of the rectangle

5*12=60

then you find the area of the triangle

to find the length of the dotted line you need to subtract 9 from 12 which is 3

to find the length of the line adjacent to the dotted line you need to subtract 5 from 9 which is 4

use the triangle area formula 3*4*1/2=6

add the areas of the triangle and the rectangle 60+6=66

Answer:

It landed at a height of 14 feet

Step-by-step explanation:

Given

[tex]y = -\frac{1}{8}x^2 +4x[/tex] --- Path of a t-shirt

[tex]3y = 2x - 14[/tex] --- height of bleachers

Required

Height when t-shirts land in bleachers

[tex]3y = 2x - 14[/tex]

Make y the subject

[tex]y = \frac{2}{3}x - \frac{14}{3}[/tex]

Substitute [tex]y = \frac{2}{3}x - \frac{14}{3}[/tex] in  [tex]y = -\frac{1}{8}x^2 +4x[/tex]

[tex]\frac{2}{3}x - \frac{14}{3} = -\frac{1}{8}x^2 +4x[/tex]

Multiply through by 24

[tex]16x- 112 = -3x^2 +96x[/tex]

Express as:

[tex]3x^2 + 16x -96x- 112 = 0[/tex]

[tex]3x^2 -80x- 112 = 0[/tex]

Using a calculator:

[tex]x = 28[/tex] or [tex]x = -\frac{4}{3}[/tex]

x can not be negative:

So:

[tex]x = 28[/tex]

Substitute [tex]x = 28[/tex] in [tex]y = -\frac{1}{8}x^2 +4x[/tex] to calculate the height it landed

[tex]y = -\frac{1}{8} * 28^2 + 4 * 28[/tex]

[tex]y = 14[/tex]

Answer:

3/5

Step-by-step explanation:

1/5 + 2/5 = 3/5

3/5

I'm not sure tho sorry

Answer:

omar did not make a mistake.

Answer:

[tex](a)[/tex]  [tex]P(M\ or\ P\ or\ C) = 1.307[/tex]

(b) See Explanation

Step-by-step explanation:

Given

[tex]P = 312[/tex] ---- Professionals,

[tex]M = 470[/tex] ----- Married persons,

[tex]C = 525[/tex] ---- College graduates,

[tex]PCG = 42[/tex]  ----- Professional college graduates,

[tex]MCG = 147[/tex] ----- Married college graduates,

[tex]MP = 86[/tex]  ---- Married professionals,

[tex]MPCG = 25[/tex] ---- Married professional college graduates

[tex]Total =1000[/tex]

Solving (a): P(M or P or C)

This is calculated as:

[tex]P(M\ or\ P\ or\ C) = P(M) + P(P) + P(C)[/tex]

[tex]P(M\ or\ P\ or\ C) = \frac{n(M) + n(P) + n(C)}{Total}[/tex]

[tex]P(M\ or\ P\ or\ C) = \frac{470 + 525 + 312}{1000}[/tex]

[tex]P(M\ or\ P\ or\ C) = \frac{1307}{1000}[/tex]

[tex]P(M\ or\ P\ or\ C) = 1.307[/tex]

(b) In probabilities, the probability of an event or collection of events must not exceed 1 and must not go below 0.

In (a) above, the calculated probability exceeds 1.

Because of this single reason, the collected data is incorrect

Answer:  294

7x7=49

49x6=294