All categories

4 years ago

Help me please !!!!!!! : P

Mathematics

1 answer:

Marizza181 [45]4 years ago

7 0

The answer would be (-5+_sqroot(-3))/2 which are answers A and F

You might be interested in

What is the slope and are they linear/perpendicular?<br> PHOTO ABOVE

Mandarinka [93]

Answer:

Slope of line 1 = 3

Slope of line 2 = 3

Slope of line 3 = -1/3

Line 1 and 2 are parallel

Line 1 and 3 are perpendicular

Line 2 and 3 are perpendicular

Step-by-step explanation:

Find the slope of each line by using this equation:

$y_{2} - y_{1} / x_{2} - x_{1}$

lines are parallel if they have the same slope and line are perpendicular in they have opposite reciprocal slopes. (-1/3 is the opposite reciprocal of 3).

Hope this helps!

8 0

4 years ago

In the city where Sonia live ever in an average of 4.05 inches each month last year about how many inches of rainfall in all?

Marizza181 [45]

There are 12 months in a year

4.05 inches per month * 12 months per year = 48.6 inches last year

5 0

4 years ago

CPM homework 8.1.2 problem 8-19

Kisachek [45]

The area of the figure is 45 sq.mi and the perimeter is 23.5354 mi.

Area is the space occupied by a two dimensional object,

The area and perimeter of the given shape can be determined by dividing it into basic shapes.

The area and the perimeter of the shape given = Area of the rectangle +Area of upper triangle - Area of two small triangles at the bottom

Area of rectangle = 5 mi * 9 mi = 45 sq.mi

Area of upper Triangle = (1/2) *9*3 = 27/2 sq.mi

Area of small Triangle = (1/2) * 3*6 = 9 sq.mi

Area of other small Triangle = (1/2)*3*3 = 9/2 sq.mi

Area of the figure = 45 +13.5 -9-4.5

Area of the figure = 45 sq.mi

Similarly for Perimeter = Perimeter of the rectangle +Perimeter of upper triangle -Perimeter of two small triangles at the bottom

Perimeter = 28 -(3+6+6.708) -(3+3+4.2426) +(3+9+9.486

Perimeter = 23.5354 mi

Therefore , The area of the figure is 45 sq.mi and the perimeter is 23.5354 mi.

To know more about Area

brainly.com/question/27683633

#SPJ1

5 0

2 years ago

If a person rows to his favorite fishing spot 14 miles downstream in the same amount of time that he rows 2 miles upstream and i

Maru [420]

We will use distance formula which states:

$d=r \times t$

where 'd' is the distance, 'r' is rate or speed and 't' is time taken.

So, $t=\frac{d}{r}$

Let 'u' be the speed of boat in still water.

A person rows 14 miles downstream to the fishing spot.

So, the speed of boat downstream = (u+6) mph

Time taken by boat to go downstream = $\frac{14}{u+6}$ hr

He rows 2 miles upstream from the fishing spot.

So, the speed of boat upstream = (u-6) mph

Time taken by boat to go upstream = $\frac{2}{u-6}$ hr

Since, The person took same amount of time in going downstream and then going upstream.

So, $\frac{14}{u+6}=\frac{2}{u-6}$

Cross multiplying, we get

$14 (u-6)= 2(u+6)$

$14u - 84 = 2u + 12$

$12u = 96$

u = 8

So, speed of boat in still water is 8mph.

Now, Time taken in going downstream = $\frac{14}{u+6}$

= $\frac{14}{8+6}$

= 1 hr

Now, Time taken in going upstream = $\frac{2}{u-6}$

= $\frac{2}{8-6}$

= 1 hr

So, total time taken to cover 16 miles is 2 hours.

8 0

3 years ago

in 2008 election there was 28 blue states and22 red states express the red states and blue states as fractions lowest terms

seropon [69]

Blue states.) 14/25
Red states.)11/25

4 0

4 years ago