Solve this......(r+2)(2r-4)

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:

[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

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! :)

Answer:

6

Step-by-step explanation:

First x-intercept is multiplicity of two.

Second is just one.

Third is one.

Fourth is two.

2+1+1+2=6

Answer:

NOT found in obtuse triangles

Step-by-step explanation:

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

Answer: A=450

Step-by-step explanation:

Answer:

Step-by-step explanation:

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

Answer:

7/8 x 8 = 56/8 as simplified as 7/1 in fraction form.

Step-by-step explanation:

Hope it helps :)

9514 1404 393

Answer:

  6w²v⁶

Step-by-step explanation:

Find the matching factors in each expression.

1st expression factors

  2·3^2·w^2·x^3·v^7

2nd expression factors

  2^3·3·w^8·v^6

Factors found in both expressions:

  2, 3, w, v

The GCF is the product of these to their lowest powers:

  2^1·3^1·w^2·v^6

The GCF is 6w²v⁶.

Answer:

Step-by-step explanation:

h(x) = -4(x-2)(x+2)

The zeros are 2 and -2.

Answer:

90

Step-by-step explanation:

OA. f(x) = -4(x2 - 4)

OB. h() = -4(x - 2)(x + 2)

Och(x) = -47 +16

OD. H(x) = -2(2x - 3)

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:

[tex]D = 7\sqrt 2[/tex]

Step-by-step explanation:

Given

[tex]A = (-3,-4)[/tex]

[tex]B = (4,3)[/tex]

Required

The distance between them

This is calculated as:

[tex]D = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

So, we have:

[tex]D = \sqrt{(3-(-4))^2+(4-(-3))^2}[/tex]

[tex]D = \sqrt{7^2+7^2}[/tex]

[tex]D = \sqrt{2(7^2)}[/tex]

[tex]D = 7\sqrt 2[/tex]

Answer:

15 cm

Step-by-step explanation:

Base x height / 2 = Area(of a triangle) =

3 x 10 / 2 =

15 cm

The solution is :  the area of the following triangle is, 15 cm².

Area is the measure of a region's size on a surface. The area of a plane region or plane area refers to the area of a shape or planar lamina, while surface area refers to the area of an open surface or the boundary of a three-dimensional object.

Here, we have,

given that,

4.2 cm

3 cm

10 cm

We know that,

area = bh/2

i.e. we get,

Base x height / 2

= Area(of a triangle)

substituting the values, we get,

= 3 x 10 / 2

= 15 cm²

Hence, The solution is :  the area of the following triangle is, 15 cm².

To learn more on Area click:

brainly.com/question/20693059

#SPJ2

Answer:

$883.14

Step-by-step explanation:

Have a great day! ;)

Answer:

813.95*%8.5=69.19

69.19+813.95=883.14

883.14

Answer:

21 + 3r

Step-by-step explanation:

(7 + r) 3 =

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

21 + 3r

Hope that helps!

Answer:  294

7x7=49

49x6=294

Answer:

-343/27

Step-by-step explanation:

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:

x= 12

Step-by-step explanation:

180° = (3x - 6) + (8x + 4) + 50°  because all interior angles of a triangle add up to 180°

180° = 11x +48°

11x = 132°

x = 12

Answer:

9.8  miles

Step-by-step explanation:

14/5= 2.8mph

2.8*3.5= 9.8 miles in 3.5 hours

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:

141.73g

Step-by-step explanation:

Answer:

Hiya!!

12m * 8m = 96m

Step-by-step explanation:

Answer:

0.75

Step-by-step explanation:

o = atan ( 7/8 ) = 41.18

cos ( 41.18 ) = 0.75

Answer:

Step-by-step explanation:

Hh

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

Answer:

The goal is $19,800.

Step-by-step explanation:

$16,770 is $1,230 less than %90 of the goal. If you add 16,770 and 1,230, you get 18,000. Then you have to multiply that by 1.10 to get it to the goal. That is how you get $19,800, which is the answer.

Answer:

6 6/8

2 5/8

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

2.57142857143

or 2 57/100

Step-by-step explanation:

sorry if this is wrong

Answer:

there hope this helps I tried