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2 years ago

15

Please help me which expresión is equivalent 2^2 times 2/2^4 pls don’t tell me to go to a website just show me how to do it or t

ell me if it’s a ,b , c or d

1 answer:

NikAS [45]2 years ago

7 0

Answer:

b

2 to the power of negative 1

Step-by-step explanation:

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1A) Quad ABCD is inscribed in the circle. Find x. *

Ratling [72]

Step-by-step explanation:

2x + 9° + 3x + 1° =180° (opposite angles of a cyclic quadrilateral are supplementary)

5x + 10° = 180°

5x = 180° - 10°

5x = 170°

x = 34°

Now

Angle A

= 2 * 34° + 9°

= 77°

Hope it will help :)❤

3 0

3 years ago

Find the discriminant, and determine the number of real solutions. then solve x^2 +8x+20=0

vodomira [7]

Answer:

Part 1) The quadratic equation has zero real solutions

Part 2) The solutions are

$x_1=-4+2i$ and $x_2=-4-2i$

Step-by-step explanation:

we know that

The formula to solve a quadratic equation of the form $ax^{2} +bx+c=0$ is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$x^{2}+8x+20=0$

so

$a=1\\b=8\\c=20$

The discriminant is equal to

$D=(b^{2}-4ac)$

If D=0 -----> the quadratic equation has only one real solution

If D>0 -----> the quadratic equation has two real solutions

If D<0 -----> the quadratic equation has two complex solutions

<em>Find the value of D</em>

$D=8^{2}-4(1)(20)=-16$ -----> the quadratic equation has two complex solutions

<em>Find out the solutions</em>

substitute the values of a,b and c in the formula

$x=\frac{-8(+/-)\sqrt{8^{2}-4(1)(20)}} {2(1)}$

$x=\frac{-8(+/-)\sqrt{-16}} {2}$

Remember that

$i=\sqrt{-1}$

$x=\frac{-8(+/-)4i} {2}$

$x_1=\frac{-8(+)4i} {2}=-4+2i$

$x_2=\frac{-8(-)4i} {2}=-4-2i$

8 0

3 years ago

+<br> 3. -5y- 10=-60<br> Solve the equation for -5y- 10=-60

In-s [12.5K]

Answer:

y=10

Step-by-step explanation:

you first add 10 to both sides

the bring down the -5y

thr divide it -50 with -5

6 0

3 years ago

Please help solve ASAP .

Digiron [165]

Answer:

Step-by-step explanation:

35.6

4 0

3 years ago

Read 2 more answers

What is the answer to 4•9+1= <br> Simplify

meriva

Answer:

37

Step-by-step explanation:

4 x 9 = 36

36+1 = 37

6 0

3 years ago

Read 2 more answers