All categories

3 years ago

Can somebody help me with the Math's questions with Forming and Solving Equations? Thanks

Mathematics

1 answer:

mojhsa [17]3 years ago

5 0

Step-by-step explanation:

the area of the square is (x+2)^2 and the factored form of it is x^2+4x+4

since we know the area is = 7 therefore

x^2 + 4x +4 = 7 and x^2 + 4x = 3

if you want to find the value of x :

x^2+4x+4 = 7

x^2+4x -3 = 0

(x-3)(x-1)=0

x = 3 or

x = 1

You might be interested in

What is the successor of -19

german

Answer:

-18

Step-by-step explanation:

Successor of -19 = - 19 + 1 = - 18

8 0

3 years ago

Read 2 more answers

Percent error between 20 and 16

Anna35 [415]

Answer:

25%

Step-by-step explanation:

$\frac{(20-16)}{|16|}$ |×100

$\frac{4}{16}$ ×100

=0.25×100

=25%

=25%error

8 0

2 years ago

What is wrong in this

il63 [147K]

Step 3 is wrong ( = 1/10 pound x 1/10 pound )

7 0

3 years ago

Between 0900 and 10 30, a man walks a distance of 27 km. What is his average speed in km/h?

kramer

Answer:

Step-by-step explanation:

0900 to1030 is 1.5 h

Take 27/1.5

Then you will get the answer

6 0

2 years ago

A conical tent has a radius of 10.4 ft and a height of 8.4 ft. Doubling which dimensions will quadruple the volume of the tent?

avanturin [10]

Answer: Doubling the radius.

Step-by-step explanation:

The volume of a cone can be found with the following formula:

$V=\frac{1}{3}\pi r^2h$

Where "r" is the radius and "h" is the height of the cone.

Let's find the volume of the conical tent with a radius of 10.4 feet and a height of 8.4 feet.

Identifiying that:

$r=10.4\ ft\\\\h=8.4\ ft$

You get this volume:

$V_1=\frac{1}{3}\pi (10.4\ ft)^2(8.4\ ft)\\\\V_1=951.43\ ft^3$

If you double the radius, the volume of the conical tent will be:

$V_2=\frac{1}{3}\pi (2*10.4\ ft)^2(8.4\ ft)\\\\V_2=3,805.70\ ft^3$

When you divide both volumes, you get:

$\frac{3,805.70\ ft^3}{951.43\ ft^3}=4$

Therefore, doubling the radius will quadruple the volume of the tent.

5 0

2 years ago