x2 + 8x + 20 = 0
Quadratic equation

Answer:

perimeter-

perimeter outer rectangle = 2 (l+b)

=2×8+9

= 2×17

2×17 =34 cm sq.

perimeter of inner rectangle = 2 (l+b)

= 2×5+3

=2× 8

= 16 cm sq.

perimeter of shaded portion= 34 - 16

= 18 cm sq.

area-

area of inner rectangle =l×b

l×b = 3×5

3×5=15

15 cm sq.

area of outer rectangle =l×b

l×b= 9×8

9×8= 72

72 cm sq.

area of shaded portion = 72 -15 =57 cm sq.

hey there! In second method i have done first area of inner rectangle but you have to do first area of outer rectangle...

hope it helps you....

Answer:

Let A1 = be the large rectangle and A2 the small rectangle

=> Area A1: S1 = a1.b1 => S1 = 8 x 9 = 72m2

=> Area A2: S2 = a2.b2 => S2 = 3 x 5 = 15 m2

=> Area of the remaining surrounding square: S1-S2 = 72-15 = 67m2

=> Perimeter A1: P1 = 2 (a1 + b1) = 2 (9 + 8) = 34m

=> Perimeter A2: P2 = 2 (a2 + b2) = 2 (3 + 5) = 16m

=> Perimeter of the surrounding square: P1-P2 = 34-16 = 18m

Step-by-step explanation:

Answer:

A notebook at the dollar store costs between 1-2 dollars

Answer:

C

Step-by-step explanation:

(y2-y1)/(x2-x1) = slope

y2-y1 = (-1)-(-5) = 4

x2-x1 = (-9)-(-1) = -8

slope = 4/(-8) = -0.5

Answer:

their will be at least $159

Answer:

D.

Step-by-step explanation:

You can check with this equation 26262(1.04)^12. gets you the same answer as D.

Answer:

8 1/8 or 8.125

Step-by-step explanation:

To find the volume of a rectangular prism, multiply its 3 dimensions: length x width x height. The volume is expressed in cubic units.

since we only have length and width we just multiply that

16 1/4 x 1/2 = 8 1/8 or 8.125

so the volume is 8 1/8 0r 8.125

Answer:

katy is 10 years older than antoine

Step-by-step explanation:

plz mark brainliest.

Answer: (-2,1) is the coordinate if rotated 270 degrees from origin.

Step-by-step explanation:

Answer:

A' = (-1,2)

Step-by-step explanation:

The other person is in fact incorrect. The reason why he/she is incorrect is because, it says "rotation about the origin." which means that is flips around the middle. 90 degree rotation would be (1,-2), a 180 degree rotation would be (-2,1), a 270 rotation would be (-1,2).

Therefore, your answer would be A' = (-1, 2)

Answer:

8

Step-by-step explanation:

-3 + 11 = 8

blank = 8

[tex]\huge\purple {\mid {\fbox {\tt {Solution!}}\mid}}[/tex]

[tex] \longmapsto- 3 + 11 \\ \longmapsto8[/tex]

Answer:

It took you 3 hours to reach the apple farm.

Step-by-step explanation:

Answer:

x = -19/6

Step-by-step explanation:

37x - 58 = 132 + 97x

-60x = 190

x = -19/6

Answer:  -3.167 or -19/6

Step-by-step explanation:

x = -19/6 = -3.167

Answer:

B. 8cm

Step-by-step explanation:

radius = 4cm

volume = 4/3 π r³

volume = 4/3 *3.14 *4³ (π = 3.14)

volume = 268cm³

hope it is help you

Answer:  the answer is 56%

Answer:

2 1/2

Step-by-step explanation:

since it two halves multiplied, it'd be 2 1/2. you can also mulitpy decimals to get ur answer

breainliest pls

Answer:

What Are The Options?

Step-by-step explanation:

Answer:

0.42

Step-by-step explanation:

given:

P (penny) = 1/4

P (dime) = 1/3

since the only other possibility is to pick a nickel, hence

P (nickel)

= 1 - 1/4  - 1/3

= 5/12

= 0.4166667

= 0.42 (nearest hundredth)

Answer:

X = 6

Step-by-step explanation:

Am tired 2 show the work

Answer:

=-6

Step-by-step explanation:

Move all terms containing x to the left side of the equation.

x−4=−10

Move all terms not containing x to the right side of the equation.

Add 4 to both sides of the equation.

x=−10+4

Add −10 and 4

X=-6

Answer: 1. x=3 and y=7

2. x=10 and y=35

3. x=-2/3 y=-2/3 (fraction)

Step-by-step explanation:

Point Form:

( 11/7 , -65/7 )

Equation Form:

x = 11/7, y = -65/7

Answer:

option B is correct option.

Step-by-step explanation:

Explain what the point (20,160) represents in the context of the situation? Check all boxes that apply

Looking at the graph we come to know that 20 shirts cost $160 because x -axis represent number of shirts and y-axis represent Total Cost

So, the point(20,160) means x = 20 and y=160

We have 20 shirts and the cost is $160

So, option B is correct option.

Answer:

the balance will decreases by 500

-500 represents his account balance  

Step-by-step explanation:

B

C

Answer: 36.7

Step-by-step explanation:

4.17 x 10 -5 =

41.7-5

=36.7

Answer:

y=1/-4x+4

Step-by-step explanation:

hey

Step-by-step explanation:

Slope (x) is rise/run. From one intersecting point to the next, we find it is moving 4 y down and 1 x over. Using this we conclude the slope is -4/1x (or -4x)

The second number in the system is b, or y-intercept. The line intercepts at 4y. If we combine these together, the outcome is y = -4x + 4

The complete equation,

5 - 9.5 = 5 - 9.5.

Two algebraic expressions having same value and symbol '=' in between are called as an equation.

Given:

An equation,

5 - 9.5 = 5 + __.

Let the missing number is x.

Simplifying,

-4.5 = 5 + x

x = -9.5

Therefore, the missing term is x = -9.5.

To learn more about the equation;

https://brainly.com/question/12788590

#SPJ2

Answer:

Its simple the anwser is 2.3

Step-by-step explanation:

               9.8

              -7.5=

               2.3

Answer:

-4

Step-by-step explanation:

Answer:

-4

Step-by-step explanation:

Answer:

b=40 I just took this quiz

Answer:b=40 a=100

Step-by-step explanato a line is 180 degrees, the outside of the triangle is 140 degrees so the inside must be 40 to make 180 and a is also 40 because the triangles sides are the same

to find a we now know that both angles on the bottom 40+40 will add up to 80 and to make a complete triangle we need 180 so the measure of a is 100 degrees

a=100

b=40