Ask question

Ask question

All categories

2 years ago

13

Which expression is equivalent to the area of metal sheet required to make this square-shaped traffic sign? I WILL GIVE BRAINLYI

EST!!

1 answer:

Dmitry_Shevchenko [17]2 years ago

6 0

Answer:

4x^2+4x-1

Step-by-step explanation:

You might be interested in

Solve for X <br><br>can you show me how to do this problem.

sergey [27]

Answer is 4.
Right angle= 90
50+ 10(4)= 90

7 0

2 years ago

Read 2 more answers

A shopkeeper sold 12 bags on the first day. The number became four times

dybincka [34]

The total number of the bags sold by the shopkeeper will be 65532.

<h3>What is number series?</h3>

The sequence formed by using the numbers is termed as the number series.So in this question from day one to day seven each day the sold items are multiplied by 4.

So the mathematical expression will be given as:

$=(12\times 4^0)+(12\times 4^1)+(12\times 4^2)+(12\times 4^3)+(12\times 4^4)+(12\times 4^5)+(12\times 4^6)$

$=12+48+192+768+3072+12288+49152\\\\=65532$

Hence the total number of the bags sold by the shopkeeper will be 65532.

To know more about number series follow

brainly.com/question/6561461

#SPJ1

3 0

1 year ago

Solve 2x2 + 20x = −38. (1 point)

RoseWind [281]

Answer:

The solutions are $x=-5+\sqrt{6}$ and $x=-5-\sqrt{6}$

Step-by-step explanation:

we have

$2x^{2} +20x=-38$

Divide by $2$ both sides

$x^{2} +10x=-19$ ------> $x^{2} +10x+19=0$

we know that

The formula to solve a quadratic equation of the form $ax^{2} +bx+c=0$ is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$x^{2} +10x+19=0$

so

$a=1\\b=10\\c=19$

substitute

$x=\frac{-10(+/-)\sqrt{10^{2}-4(1)(19)}}{2(1)}$

$x=\frac{-10(+/-)\sqrt{100-76}}{2}$

$x=\frac{-10(+/-)\sqrt{24}}{2}$

$x=\frac{-10(+/-)2\sqrt{6}}{2}$

$x1=\frac{-10(+)2\sqrt{6}}{2}=-5+\sqrt{6}$

$x2=\frac{-10(-)2\sqrt{6}}{2}=-5-\sqrt{6}$

8 0

2 years ago

Read 2 more answers

Wich fraction is equivalent to 2/8

mars1129 [50]

What are the choices?

3 0

2 years ago

Read 2 more answers

Compare Elena's and Noah's money using fraction

Leokris [45]

Um did you get the wrong picture?

4 0

2 years ago

Read 2 more answers