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Zarrin [17]
4 years ago
12

What’s the answer??????????

Mathematics
1 answer:
LUCKY_DIMON [66]4 years ago
8 0
The ans is: 
cos 20 =x/80
x=75.2
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PLEASE HELP QUICK I NEED IT TO PASS. PLEASE SHOW STEPS, AND DON'T SPAM LINK PLEASE HELP. I NEED SOME HELP
Vesnalui [34]

Answer: 151

Step-by-step

you need to first find the area of each piece of the tent

the 2 rectangular flaps would be 6*8= 48 each

the bottom would be 4*8=32

to find the area of the triangular pieces we need to know the height of each triangle, right now we only know sides. To find the height (the altitude) you draw a line straight down to make a 90 degree angle.

that will also cut your base in half (2 instead of 4) and make 6 your hypotenuse

now use the Pythagorean theorem to find the height of the triangle

a^{2} +b^{2} =c^{2} \\\\a^{2} +2^{2} =6^{2} \\a^{2} +4=36\\a^{2} =32\\a=\sqrt{32} = 5.66

Area of a triangle is

\frac{1}{2} bh\\\frac{1}{2} (4)(5.66)= 11.31

the area of one triangle is 11.31

so together it is 48+48+32+11.31+11.31= 150.6

round up to 151

7 0
3 years ago
An expression is shown below. Which expression is equivalent to the expression shown?
Vera_Pavlovna [14]

Note: In option A, it should be "+" instead of "(".

Given:

The expression is

-2x(x+y-3)+3(-x+4y)+y(3x+5y-3)

To find:

The equivalent expression.

Solution:

We have,

-2x(x+y-3)+3(-x+4y)+y(3x+5y-3)

Using distributive property, we get

=-2x(x)-2x(y)-2x(-3)+3(-x)+3(4y)+y(3x)+y(5y)+y(-3)

=-2x^2-2xy+6x-3x+12y+3xy+5y^2-3y

On combining like terms, we get

=-2x^2+5y^2+(-2xy+3xy)+(6x-3x)+(12y-3y)

=-2x^2+5y^2+xy+3x+9y

The expression -2x^2+5y^2+xy+3x+9y is equivalent to the given expression.

Therefore, the correct option is A.

6 0
3 years ago
The first day of the food drive missed easily for cans of beans 7 boxes of noodles and for cans of soup. Find the ratio of cans
DochEvi [55]
There is only the number 7 in this question I can’t really help with one number
8 0
4 years ago
Get it right and you get the brainliest. Copy the lines and draw on them to complete the assignment.
krek1111 [17]

Answer:

Step-by-step explanation:

4 0
2 years ago
60 divided by the ratio of 7:3
wariber [46]
First find the total of the ratio:
7 + 3 = 10

Now we can divide 60 by 10:
60 divided by 10 is 6

Finally we can multiply both 7 and 3 by 6:
7 x 6 = 42
3 x 6 = 18

To check we can add 42 and 18: this gives us 60.

Answer: 42:18

Hope this helps!
6 0
3 years ago
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