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3 years ago

Please help me with 8, 9, and 10 thanks! Show work too

Mathematics

1 answer:

Harrizon [31]3 years ago

3 0

In 8, 9, 10, all the triangles are similar, meaning corresponding sides have the same ratio.

8. hypotenuse / (short side) = 25/x = x/9
x² = 25*9 = 5²×3²
x = √(5²×3²) = 5*3 = 15

9. (long side) / (short side) = x/7 = 9/x
x² = 7*9
x = √(9*7) = 3√7

10. (short side) / (long side) = x/48 = 48/64
x = 48²/64 = 36

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PLZZZ HURRY!!!!!

klasskru [66]

Answer:

$360 I think

Step-by-step explanation:

240 <em>divided</em> by 2/3 = 360

I hope this helps, sorry if it isn't the right answer

4 0

3 years ago

Read 2 more answers

Simplify<br>5/2y-1 - 6/3y-1

Kipish [7]

Answer:

Step-by-step explanation:

First Group like terms:

$5/2y-6/3y-1-1$

Add similar elements: $5/2y-6/3y=1/2y$

$1/2y-1-1$

$1/2y=y/2$

$=y/2-1-1$

$=y/2-2$

6 0

2 years ago

The function h(t) = −16t2 + 18t models the height, in feet, reached by a leopard t seconds after it jumps. What is the approxima

S_A_V [24]

9514 1404 393

Answer:

5 1/16 ft

Step-by-step explanation:

h(t) = -16t(t -18/16) . . . . put in intercept form

The function describes a parabola that opens downward. It has zeros at t=0 and t=9/8. The maximum height will be found at the vertex of the parabola, halfway between these zeros.

f(9/16) = (-16)(9/16)² +18(9/16) = 81/16 = 5 1/16 . . . . feet

The approximate maximum height of the leopard is 5 1/16 feet.

5 0

3 years ago

Help please...

stealth61 [152]

Answer:

1) 80% 2)25%

Step-by-step explanation:

1)80% of $2.50 = $4.50

2)25% of $9 = $2.25

9 - 2.25 = $6.75

7 0

3 years ago

Three of exterior angle of n-sided polygon are 50° each two of it's interior angle are 127° and 135° and the remaining interior

irga5000 [103]

Answer:

The value of n is 21.

Step-by-step explanation:

We are given that three of the exterior angle of the n-sided polygon are 50° each two of its interior angle are 127° and 135° and the remaining interior angle are 173 each.

As we know that the sum of all exterior angles of the polygon is 360°. Also, the number of remaining interior angles will be (n - 5).

And, the exterior angle = 180° - the interior angle.

So, according to the question;

$(3 \times 50) + (180-127) + (180 - 135) + (n - 5)\times (180-173) =360$

150 + 53 + 45 + 7(n - 5) = 360

248 + 7n - 35 = 360

213 + 7n = 360

7n = 360 - 213

7n = 147

n = $\frac{147}{7}$

n = 21

Hence, the value of n is 21 and this is a 21-sided polygon.

4 0

3 years ago