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stepladder [879]
2 years ago
7

An isosceles trapazoid has base angles of 45 degrees and bases of lengths 9 and 15. The area of the trapazoid is what

Mathematics
1 answer:
lakkis [162]2 years ago
6 0

Answer:

area of trapazoid= 1/2 × b× h

so = 1/2×9×15

=1/2×135

=67.5cm

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What is the remainder of (x^3-6x^2-9x+3)/(x-3)
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Thw answer is -51
Found through long division

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The stable nuclide ²⁰⁶₈₂Pb is formed from ²³⁸₉₂U by a long series of α and β⁻ decays. Which of the following nuclides could NOT
Makovka662 [10]

Answer:

Rn-222

Step-by-step explanation:

this decay takes specified step therefore Rn-222is not a decaying process

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Help pls IM so confused
hoa [83]
16 x^{2}
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Please help me please please please please please please please ​
Schach [20]

Answer:

The leg measures 14.14 cm

Step-by-step explanation:

The "40 - 40 - 90" special right triangle is an isosceles right triangle because two angles measures the same. (Check the picture)

The legs are the same.

The hypotenuse is:

a × √2

From the question, the length of the hypotenuse is 20 cm.

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7 0
3 years ago
use the substitution method to solve the system of equations choose the correct orderd pair. 3x-y=7 2x-2y=2
sergey [27]

Answer:

(3,2)

Step-by-step explanation:

We are given the system:

3x-y=7

2x-2y=2.

We are asked to solve this by substitution.  We need to pick an equation and pick a variable from that equation to solve for that variable.

I really like either for this.  Some people might go with the first one though. Let's do that.  I will solve the first one for y.

3x-y=7

Subtract 3x on both sides:

   -y=-3x+7

Divide both sides by -1:

     y=3x-7

Now we are ready for substitution.  We are going to plug this equation into the second equation giving us:

2x-2y=2 with y=3x-7 gives us:

2x-2(3x-7)=2

Distribute:

2x-6x+14=2

Combine like terms:

-4x+14=2

Subtract 14 on both sides:

-4x      =2-14

Simplify:

-4x       =-12

Divide both sides by -4:

  x       =-12/-4

Simplify:

 x         =3

So using y=3x-7 and x=3, I will find y now.

y=3x-7 if x=3

y=3(3)-7   (I inserted 3 for x since we had x=3)

y=9-7       (Simplified)

y=2           (Simplified)

The answer is (x,y)=(3,2).

6 0
3 years ago
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