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shepuryov [24]
3 years ago
8

Please help me with this math problem lease I’ll mark brainlist

Mathematics
1 answer:
Varvara68 [4.7K]3 years ago
4 0
Tan(L°) = 21/15
L = tan^-1(21/15)
L = 54.5°
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The length of a rectangle is twice the with. If the perimeter of the rectangle is 60 units, find the area of the garden
Darya [45]

w - width

2w - length

60 - perimeter

w + w + 2w + 2w = 6w - perimeter

The equation:

6w = 60    <em>divide both sides by 6</em>

w = 10 → 2w = 2 · 10 = 20

The area: A = width × length

A = (10)(20) = 200

<h3>Answer: The area of the garden is equal 200 square units.</h3>
4 0
3 years ago
Fdnshshbbebebbeebhhh​
scoray [572]

Answer:

weshdfiuashfiHFEhihidohfoiehfoih;ehfehfuhfhhosdhh

Step-by-step explanation:

hope this helped :)

3 0
3 years ago
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HELLLLPPPPPPPP ME PLEASEEEEE
Hunter-Best [27]
Answer: X=1



Explanation: When solving an equation, the goal is to isolate the variable (X). In order to do so, you must move everything else on the same side of the equation to the other side. So, in the equation 4=3+x, 3 is on the same side of the equation as X, so you must move it to the other side. When moving a number from one side of an equation to the other, you change the operation to the opposite: “+” becomes “-“, multiplication becomes division. Since the 3 in your equation is positive (+3), when you move it to the other side, it becomes “-3”. Thus:
4-3=x
1=x or x=1





Hope that helps シ
4 0
2 years ago
(1.3 x 10-2) (0.05) = ?
Alik [6]

Answer:

=0.065x10−0.1

Step-by-step explanation:

(1.3x10−2)(0.05)

=(1.3x10+−2)(0.05)

=(1.3x10)(0.05)+(−2)(0.05)

=0.065x10−0.1

7 0
3 years ago
Read 2 more answers
5 - k ÷ 3/5 k = 1/4 I need this answer for my assignment
sasho [114]

Answer:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

3/5*k+1/5*k-(4)=0

Step by step solution :

STEP

1

:

1

Simplify —

5

Equation at the end of step

1

:

3 1

((— • k) + (— • k)) - 4 = 0

5 5

STEP

2

:

3

Simplify —

5

Equation at the end of step

2

:

3 k

((— • k) + —) - 4 = 0

5 5

STEP

3

:

Adding fractions which have a common denominator :

3.1 Adding fractions which have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

3k + k 4k

—————— = ——

5 5

Equation at the end of step

3

:

4k

—— - 4 = 0

5

STEP

4

:

Rewriting the whole as an Equivalent Fraction :

4.1 Subtracting a whole from a fraction

Rewrite the whole as a fraction using 5 as the denominator :

4 4 • 5

4 = — = —————

1 5

Equivalent fraction : The fraction thus generated looks different but has the same value as the whole

Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator

Adding fractions that have a common denominator :

4.2 Adding up the two equivalent fractions

Add the two equivalent fractions which now have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

4k - (4 • 5) 4k - 20

———————————— = ———————

5 5

STEP

5

:

Pulling out like terms :

5.1 Pull out like factors :

4k - 20 = 4 • (k - 5)

Equation at the end of step

5

:

4 • (k - 5)

——————————— = 0

5

STEP

6

:

When a fraction equals zero :

6.1 When a fraction equals zero ...

Where a fraction equals zero, its numerator, the part which is above the fraction line, must equal zero.

Now,to get rid of the denominator, Tiger multiplys both sides of the equation by the denominator.

Here's how:

4•(k-5)

——————— • 5 = 0 • 5

5

Now, on the left hand side, the 5 cancels out the denominator, while, on the right hand side, zero times anything is still zero.

The equation now takes the shape :

4 • (k-5) = 0

Equations which are never true:

6.2 Solve : 4 = 0

This equation has no solution.

A a non-zero constant never equals zero.

Solving a Single Variable Equation:

6.3 Solve : k-5 = 0

Add 5 to both sides of the equation :

k = 5

7 0
3 years ago
Read 2 more answers
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