All categories

3 years ago

Simplified polynomial expression in standard form to represent the area of the rectangle 5x+2 x-4

Mathematics

1 answer:

hoa [83]3 years ago

5 0

Area of rectangle: 5x2 -18x - 8

//Hope this helps.

You might be interested in

Plz help on 12<br> Will give brainliest

liraira [26]

The sum of 2 complementary angles equals 90 degrees.

If angle 1 and 2 are complementary and angle 1 and 3 are also complementary than angle 2 would have to be the same as angle 3.

The answer would be true.

7 0

3 years ago

Evaluate the algebraic expression for the value given: -3x + X +9;=2*8)1

Strike441 [17]

y =-3x + x + 9

Find y when x = 2

Substitute the value of x= 2 into the equation

y = -3(2) + 2 + 9

y = - 6 + 2 + 9

y = -4 + 9

y = 5

The answer is 5

4 0

1 year ago

PLZ HELP DUE SOON!!!!!!!!!!!!!!!!

Fudgin [204]

Answer:

36 ft

Step-by-step explanation:

Side = 8-3 = 5

6 x 5 = 30

3 x 2 = 6

3 0

3 years ago

Perform the indicated operation.(3/a+2) + (4/a-5)

kipiarov [429]

Answer:

$\frac{7(a-1)}{(a+2)(a-5)}$

Step-by-step explanation:

To solve this operation we need to find the common multiple of both denominators and solve for a.

$\frac{3}{a+2} + \frac{4}{a-5} =\frac{3(a-5)+4(a+2)}{(a+2)(a-5)} =\frac{3a-15+4a+8}{(a+2)(a-5)} =\frac{7a-7}{(a+2)(a-5)} =\frac{7(a-1)}{(a+2)(a-5)}$

Thus, the solution is 7(a -1) / (a+2)(a-5)

8 0

4 years ago

a ladder leans against the sufe of a house. the angle of elevation of the ladder is 70 degrees when the bottom of the ladder is

nekit [7.7K]

Answer:

≈ 35.1 ft

Step-by-step explanation:

The model is a right triangle with ladder being the hypotenuse and the angle between the ground and the ladder is 70°

Using the cosine ratio, with l being the length of the ladder.

cos70° = $\frac{adjacent}{hypotenuse}$ = $\frac{12}{l}$ ( multiply both sides by l )

l × cos70° = 12 ( divide both sides by cos70° )

l = $\frac{12}{cos70}$ ≈ 35.1 ( to the nearest tenth )

The ladder is approx 35.1 ft long

4 0

3 years ago