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3 years ago

Please help me Aspa Plaease

Mathematics

1 answer:

Natasha_Volkova [10]3 years ago

7 0

She need 3 bags since the area of the triangle is base x height /2
Area 20*6=120
120/2=60
60/20= 3 since each bag covers 20m^2

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What is the standard form of (1+2√-3/1+2√-3 ?

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3 years ago

Write an expression for "the difference of 10 and x.

navik [9.2K]

10-x=d
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3 years ago

2x+3y=6 fins the slope of the line

klasskru [66]

2x + 3y = 6

Put this into y=mx+b form (which is also called slope-intercept form)

Where m=slope and b=y-intercept

In order to put this into slope-intercept form, we simply need to subtract 2x from both side.s

3y = 6 - 2x

Then, divide both sides by 3 so that we fully isolate y.

3y ÷ 3 = (6 - 2x) ÷ 3

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y = 2 - 2/3x

Put this into order by moving "x" onto the correct place.

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Therefore -2/3 is the slope, as it is in the "m" spot.

Hope I helped! :)

6 0

3 years ago

Read 2 more answers

Joe has one book each for algebra, geometry, history, psychology, Spanish, English and Physics in his locker. How many different

Alisiya [41]

Answer:

There are 35 different sets of 3 books Joe could choose

Step-by-step explanation:

* Lets explain how to solve the problem

- Combination is a collection of the objects where the order doesn't

matter

- The formula for the number of possible combinations of r objects from

a set of n objects is nCr = n!/r!(n-r)!

- n! = n(n - 1)(n - 2)................. × 1

Lets solve the problem

- Joe has one book each for algebra, geometry, history, psychology,

Spanish, English and Physics in his locker

∴ He has seven books in the locker

- He wants to chose three of them

∵ The order is not important when he chose the books

∴ We will use the combination nCr to find how many different sets

of three books he can choose

- The total number of books is 7

∴ n = 7

∵ He chooses 3 of them

∴ r = 3

∵ 7C3 = 7!/3!(7 - 3)! = 7!/3!(4!)

∴ $7C3=\frac{(7)(6)(5)(4)(3)(2)(1)}{[(3)(2)(1)][(4)(3)(2)(1)]}=35$

∴ 7C3 = 35

* There are 35 different sets of 3 books Joe could choose

3 0

3 years ago

Find the values of x and y in the d

tia_tia [17]

9514 1404 393

Answer:

x = 20
y = 10

Step-by-step explanation:

The angle marks show that ΔRST is isosceles, so RT = RS. They also show ΔRTU to be equilateral, so UT = RT.

UT = RS

x -5 = 15

x = 20 . . . . . . add 5

ΔRTU is equilateral, so ∠RTU is 60°. The angle marked 3y° is complementary to that.

3y = 30

y = 10 . . . . . divide by 3

7 0

3 years ago