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pishuonlain [190]
3 years ago
13

The area of triangle is 210 feet and the height is 30 feet write an equation to find the base of the triangle and use it to solv

e the problem
Mathematics
1 answer:
Gre4nikov [31]3 years ago
3 0

Answer: Equation:  0.5*30*b = 210

               Base length: 14

Step-by-step explanation: The formula of the area of a triangle is 1/2*b*h, so we can use that and the information given to make a formula then solve.

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A basketball player shoots the ball with an initial velocity of 17.1 ft/sec at an angle of 45.6 degrees with the horizontal.to t
jeka94
The horizontal component is:

17.1cos45.6≈11.96 so

vx=12.0 ft/sec  (to nearest tenth ft/s)
3 0
4 years ago
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10xy(4xy^3-7xy+9y^2)
Thepotemich [5.8K]

Answer:

40x^{2} y^{4} -70x^{2} y^{2} +90xy^{3}

Step-by-step explanation:

10xy(4xy^{3} -7xy+9y^2)  

1. 10xy · 4xy^3 = 40x^2y^4

2. 10xy · -7xy = -70x^{2} y^{2}

3. 10xy · 9y^2 = 90xy^3

Final step: add up all of those values together to make an equation!

Answer:  40x^2y^4+ -70x^2y^2+ 90xy^3

Final Answer: 40x^2y^4-70x^2y^2+90xy^3

3 0
3 years ago
Write the equation of the line that perpendicular to 4x+5y=20 an that passes through the point (-4,1)
Bad White [126]

Answer:

y = (5/4)x + 6

Step-by-step explanation:

The 1st line's equation is:

● 4x + 5y = 20

Substract 4x from both sides

● 4x + 5y - 4x = 20 - 4x

● 5y = 20 -4x

● 5y = -4x + 20

Divide both sides by 5

● 5y/5 = (-4x + 20)/5

● y = (-4/5)x + 4

● y = -0.8x + 4

Let m be the slope of the second line

The lines are perpendicular so the product of their slopes equals -1

Then: m × (-0.8) = -1

● m × (-0.8)= -1

● m = -1/(-0.8)

● m = 1.25

y = 1.25x + b

b is the y-intercept of the line.

To get it replace by the coordinates of a point.

We are given that the line passes through (-4,1)

● y = 1.25x + b

● 1 = 1.25 × (-4) + b

1.25 is 5/5

● 1 = (5/4) × (-4) + b

● 1 = -5 + b

Add 5 to both sides

● 1 + 5 = -5 + b + 5

● b = 6

So the equation is

● y = (5/4)x + 6

6 0
3 years ago
34− 6 × 3+ 78 pemdas
Mazyrski [523]

Answer:

94

Step-by-step explanation:

PEDMAS

34 - 6 \times 3 + 78 \\ 34 - 18 + 78 \\ 34 + 60 \\  = 94

Step 1 : Multiplication :

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Step 2: Addition: -18+78 = +60

Step 3: Addition : 35+60

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8 0
3 years ago
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Does any one nows how to solve this
8090 [49]
Yes this is so easy just ask your find and that’s the answer
8 0
3 years ago
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