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3 years ago

How do you do this??

Mathematics

1 answer:

ValentinkaMS [17]3 years ago

7 0

15*14 then multiply by 2. The second part is to multiply 15 by 15. Finally add them all together.

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Can a trapezoid be a hexagon

NNADVOKAT [17]

Answer:

No. A trapezoid is a shape with four sides, while a hexagon is a shape with six sides.

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

James Ran 1/4 of a mile in the morning and then ran 2/8 of a mile that evening what was the distance James ran

Setler79 [48]

Answer:

1/2

Step-by-step explanation:

1/4=2/8

2/8+2/8=4/8=1/2

4 0

4 years ago

EMERGENCY Triangles ABC and DEF are similar. Find the length of the segments EF and DF

Gala2k [10]

Answer:

EF = 1.5. DF = 2.

Step-by-step explanation:

DE is half of AB so EF is half of BC and DF is half of AC.

7 0

3 years ago

The gcf of 135 225 270

rodikova [14]

The greatest common factor of 135 225 and 270 is 135/225 = 3/5

hope you found this helpful ;)

5 0

4 years ago

Amelia launched her science fair rocket, and then backed away. The path of the rocket is given by the equation below, where y is

Mamont248 [21]

Answer:

1)The rocket hit the ground at $x = \frac{5}{4}$

2)The maximum height of the rocket = 12.468 feet

Step-by-step explanation:

Step(i):-

Given equation

y = -2 x² + 5 x + 7 ...(i)

Differentiating equation (i) with respective to 'x' , we get

$\frac{dy}{dx} = -2( 2x) +5(1) = -4x +5$

Equating zero

$\frac{dy}{dx} = 0$

⇒ -4 x +5 =0

⇒ -4 x = -5

⇒ $x = \frac{5}{4}$

The rocket hit the ground at $x = \frac{5}{4}$

Step(ii):-

$\frac{dy}{dx} = -4x +5$ ...(ii)

Again differentiating equation (ii) with respective to 'x' , we get

$\frac{d^{2} y}{dx^{2} } = - 4(1)$

The maximum height at x = $\frac{-5}{4}$

y = -2 x² + 5 x + 7

$y = -2 (\frac{5}{4})^{2} + 5 (\frac{5}{4} ) + 7$

$y = \frac{-2(25)+ 25 (16)+7(64)}{64}$

$y = \frac{798}{64} = 12.468 feet$

The maximum height of the rocket = 12.468 feet

4 0

3 years ago