All categories

3 years ago

Help anyone pleaseLol

Mathematics

1 answer:

WITCHER [35]3 years ago

7 0

Answer:

its the sceond one

Step-by-step explanation:

You might be interested in

26 = 2(3x - 2)<br> please help

Nadya [2.5K]

Answer:x=5

2(3x-2)=6x-4

6x-4=26

6x=30

x=5

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

This figure is made up of a quadrilateral and a semicircle.

Arturiano [62]

Answer:

The correct option is B. The area of the figure is 40.4 units².

Step-by-step explanation:

The line AB divides the figure in two parts one is a rectangle and another is semicircle.

The distance formula is

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

The length of AB is

$AB=\sqrt{(2+3)^2+(4-2)^2}=\sqrt{25+4}=\sqrt{29}$

The length of AD is

$AD=\sqrt{(-1+3)^2+(-3-2)^2}=\sqrt{4+25}=\sqrt{29}$

Since AB=AD, therefore ABCD is a square. The area of the of square is

$A_1=a\times a=\sqrt{29}\times \sqrt{29} =29$

The area of square is 29 units².

The area of a semicircle is

$A_2=\frac{\pi}{2}r^2$

Since AB is the diameter of the semicircle, therefore the radius of the semicircle is

$r=\frac{d}{2}=\frac{\sqrt{29}}{2}$

The area of the semicircle is

$A_2=\frac{3.14}{2}(\frac{\sqrt{29}}{2})^2=40.3825$

The area of the figure is

$A=A_1+A_2=29+11.2825=40.3825\approx 40.4$

Therefore the area of the figure is 40.4 units². Option B is correct.

5 0

3 years ago

A graph is constructed such that time (in seconds) is the X-variable and distance (in miles) is the Y-variable. If you plot the

boyakko [2]

5/1 or 5 as slope is the rise or y, over the run or x

3 0

3 years ago

Which two values of x are the roots of the polynomial below? <br> x^2+5x+11

In-s [12.5K]

Answer:

x = -5/2 + i√19 and x = -5/2 - i√19

Step-by-step explanation:

Next time, please share the possible answer choices.

Here we can actually find the roots, using the quadratic formula or some other approach.

a = 1, b = 5 and c = 11. Then the discriminant is b^2-4ac, or 5^2-4(1)(11). Since the discriminant is negative, the roots are complex. The discriminant value is 25-44, or -19.

Thus, the roots of the given poly are:

-5 plus or minus i√19

x = -----------------------------------

2(1)

or x = -5/2 + i√19 and x = -5/2 - i√19

5 0

3 years ago

Read 2 more answers

Please help me i really need help

joja [24]

Answer:

Step-by-step explanation:

15% of 80 is 12 so you subtract 12 from 80 and thats 68.

5 0

2 years ago