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Ede4ka [16]
3 years ago
7

Please? Some help? Subtract the polynomials below and enter the answer in descending order.

Mathematics
2 answers:
ziro4ka [17]3 years ago
7 0
F. vc bc.....…?…64:)(:46)$8
Nina [5.8K]3 years ago
3 0

Answer:

2x^3-3x+2

Step-by-step explanation:

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Find the area of following figure...?​
MrRa [10]

Answer:

33600 m²

Step-by-step explanation:

The top and bottom horizontal sides are parallel, so this is a trapezoid with bases DC and AB. The height is BC.

area of trapezoid = (a + b)h/2

where a and b are the lengths of the bases, and h is the height.

We need to find the height, BC.

Drop a perpendicular from point A to segment DC. Call the point of intersection E. E is a point on segment DC.

DE + EC = DC

EC = AB = 360 m

DC = 600 m

DE + 360 m = 600 m

DE = 240 m

Use right triangle ADE to find AE. Then BC = AE.

DE² + AE² = AD²

DE² + 240² = 250²

DE² = 62500 - 57600

DE² = 4900

DE = √4900

DE = 70

BC = 70 = h

area = (a + b)h/2

area = (600 m + 360 m)(70 m)/2

area = 33600 m²

4 0
2 years ago
Read 2 more answers
What is the gradient and y-intercept of 3y=4x+6
Blababa [14]
Y = mx + b

m is the gradient, otherwise known as slope
b is known as the y-intercept

So 3y = 4x + 6

Divide both sides by 3 to isolate y.

y = (4/3)x + 2

The gradient is 4/3
The y-intercept is 2
8 0
4 years ago
The approximate molar concentration of several chemicals are given. Find the pH of each use the calculator and round to the near
svet-max [94.6K]

Explanation:

Formula to calculate pH of a chemical or solution is as follows.

                    pH = -log [H^{+}]

Therefore, calculate the pH of given chemicals as follows.

1). Oven cleaner

              pH = -log [H^{+}]

                    = -log [10^{-13}]

                    =  13

2). Water

               pH = -log [H^{+}]

                     = -log [7 \times 10^{-7}]

                     = 6.15

3). Blood

               pH = -log [H^{+}]    

                     = -log [4 \times 10^{-8}]

                     = 7.40

4). Vinegar

                pH = -log [H^{+}]    

                      = -log [63 \times 10^{-4}]

                      = 2.20          

3 0
3 years ago
Read 2 more answers
which of the following is an equation of the horizontal line that passes through the point (10,14)? a )y=10 b )y=14 c) x=10 d) x
Masja [62]
To represent a horizontal line going through a point on the graph, we denote it with the variable y, as this means the graph would intersect the y axis horizontally and extend in both the left and right directions.

The solution would be the equation, y equaling the y coordinate of the point which is 14. Y = 14.
7 0
3 years ago
Subtract (4x − 3y) from the sum of (12x + 9y) and (−2y).
Mrac [35]
1) Find sum of (12x+9y) and (-2y)
12x+9y+(-2y)=12x+7y

2) Subtract (4x-3y) from the sum
(12x+7y)-(4x-3y)=12x+7y-4x+3y=8x+10y

3) The answer is 8x+10y
5 0
4 years ago
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