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3 years ago

What is the answer?

Mathematics

1 answer:

krek1111 [17]3 years ago

5 0

Answer:

the answer should be always, which would be b

Step-by-step explanation:

if you have a reciprocal 3/2 then the fraction would be 2/3 which is proper. you just flip the numbers.

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Solve 2x2 + 20x = −38. (1 point)

RoseWind [281]

Answer:

The solutions are $x=-5+\sqrt{6}$ and $x=-5-\sqrt{6}$

Step-by-step explanation:

we have

$2x^{2} +20x=-38$

Divide by $2$ both sides

$x^{2} +10x=-19$ ------> $x^{2} +10x+19=0$

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

$x^{2} +10x+19=0$

$a=1\\b=10\\c=19$

substitute

$x=\frac{-10(+/-)\sqrt{10^{2}-4(1)(19)}}{2(1)}$

$x=\frac{-10(+/-)\sqrt{100-76}}{2}$

$x=\frac{-10(+/-)\sqrt{24}}{2}$

$x=\frac{-10(+/-)2\sqrt{6}}{2}$

$x1=\frac{-10(+)2\sqrt{6}}{2}=-5+\sqrt{6}$

$x2=\frac{-10(-)2\sqrt{6}}{2}=-5-\sqrt{6}$

8 0

3 years ago

Read 2 more answers

Perimeter of 26 with the length of 7 what is the width

almond37 [142]

6 would be the width

7 0

2 years ago

ASAP NEED ANSWERS FOR BOTH QUESTIONS PLEASE :)

Nostrana [21]

Answer; 8inch, 4x larger

4 0

3 years ago

8=1/3(a+5)<br><br> Please help and thank you :)

s344n2d4d5 [400]

Answer:

a=19

Step-by-step explanation:

First we have to distribute the parenthesis; multiply (a+5) by 1/3

8=1/3*a+1/3*5

Now we just solve the equation regularly

8=1/3a+5/3

8-5/3=1/3a

6 1/3=1/3a

a=19

6 0

3 years ago

Read 2 more answers

Which model represents the factors of x^2 + 9x+8?

grandymaker [24]

Answer:

Step-by-step explanation:

x² + 9x+8 = (x+1)(x+8)

6 0

3 years ago

What is the answer?​

What is the answer?